nih-gov/www.ncbi.nlm.nih.gov/omim/164300

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<title>
Entry
- #164300 - OCULOPHARYNGEAL MUSCULAR DYSTROPHY 1; OPMD1
- OMIM
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<span class="h4">#164300</span>
<br />
<strong>Table of Contents</strong>
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<li role="presentation">
<a href="#title"><strong>Title</strong></a>
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<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<a href="/clinicalSynopsis/164300"><strong>Clinical Synopsis</strong></a>
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<li role="presentation">
<a href="/phenotypicSeries/PS164300"> <strong>Phenotypic Series</strong> </a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#description">Description</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#clinicalFeatures">Clinical Features</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#pathogenesis">Pathogenesis</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#inheritance">Inheritance</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#mapping">Mapping</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#genotypePhenotypeCorrelations">Genotype/Phenotype Correlations</a>
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<a href="#populationGenetics">Population Genetics</a>
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<a href="#animalModel">Animal Model</a>
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<a href="#seeAlso"><strong>See Also</strong></a>
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<a href="#references"><strong>References</strong></a>
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<a href="#contributors"><strong>Contributors</strong></a>
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<li role="presentation">
<a href="#creationDate"><strong>Creation Date</strong></a>
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<div><a href="https://clinicaltrials.gov/search?cond=OCULOPHARYNGEAL MUSCULAR DYSTROPHY" class="mim-tip-hint" title="A registry of federally and privately supported clinical trials conducted in the United States and around the world." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
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<div><a href="https://medlineplus.gov/genetics/condition/oculopharyngeal-muscular-dystrophy" class="mim-tip-hint" title="Consumer-friendly information about the effects of genetic variation on human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MedlinePlus Genetics', 'domain': 'medlineplus.gov'})">MedlinePlus Genetics</a></div>
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<a href="#mimAnimalModelsLinksFold" id="mimAnimalModelsLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimAnimalModelsLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Animal Models</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimAnimalModelsLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.alliancegenome.org/disease/DOID:11719" class="mim-tip-hint" title="Search Across Species; explore model organism and human comparative genomics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Alliance Genome', 'domain': 'alliancegenome.org'})">Alliance Genome</a></div>
<div><a href="http://www.informatics.jax.org/disease/164300" class="mim-tip-hint" title="Phenotypes, alleles, and disease models from Mouse Genome Informatics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MGI Mouse Phenotype', 'domain': 'informatics.jax.org'})">MGI Mouse Phenotype</a></div>
<div><a href="https://wormbase.org/resources/disease/DOID:11719" class="mim-tip-hint" title="Database of the biology and genome of Caenorhabditis elegans and related nematodes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Wormbase Disease Ontology', 'domain': 'wormbase.org'})">Wormbase Disease Ontology</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimCellLines">
<span class="panel-title">
<span class="small">
<a href="#mimCellLinesLinksFold" id="mimCellLinesLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimCellLinesLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Cell Lines</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimCellLinesLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://catalog.coriell.org/Search?q=OmimNum:164300" class="definition" title="Coriell Cell Repositories; cell cultures and DNA derived from cell cultures." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'CCR', 'domain': 'ccr.coriell.org'})">Coriell</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
</span>
</div>
<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>SNOMEDCT:</strong> 77097004<br />
<strong>ICD10CM:</strong> G71.09<br />
<strong>ORPHA:</strong> 270<br />
<strong>DO:</strong> 11719<br />
">ICD+</a>
</div>
<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Phenotype description, molecular basis known">
<span class="text-danger"><strong>#</strong></span>
164300
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
OCULOPHARYNGEAL MUSCULAR DYSTROPHY 1; OPMD1
</span>
</h3>
</div>
<div>
<br />
</div>
<div>
<a id="alternativeTitles" class="mim-anchor"></a>
<div>
<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
</span>
</p>
</div>
<div>
<h4>
<span class="mim-font">
MUSCULAR DYSTROPHY, OCULOPHARYNGEAL
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<a id="phenotypeMap" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed table-hover small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
<th>
Gene/Locus
</th>
<th>
Gene/Locus <br /> MIM number
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/85?start=-3&limit=10&highlight=85">
14q11.2
</a>
</span>
</td>
<td>
<span class="mim-font">
Oculopharyngeal muscular dystrophy
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/164300"> 164300 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
PABPN1
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602279"> 602279 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/164300" class="btn btn-warning" role="button"> Clinical Synopsis </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-warning dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimClinicalSynopsisFold" onclick="ga('send', 'event', 'Unfurl', 'ClinicalSynopsis', 'omim.org')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
</div>
&nbsp;
<div class="btn-group">
<a href="/phenotypicSeries/PS164300" class="btn btn-info" role="button"> Phenotypic Series </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-info dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimPhenotypicSeriesFold" onclick="ga('send', 'event', 'Unfurl', 'PhenotypicSeries', 'omim.org')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
</div>
&nbsp;
<div class="btn-group">
<button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
PheneGene Graphics <span class="caret"></span>
</button>
<ul class="dropdown-menu" style="width: 17em;">
<li><a href="/graph/linear/164300" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/164300" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
</div>
<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
<div>
<p />
</div>
<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
<div>
<div>
<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal dominant <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/263681008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">263681008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/771269000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">771269000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0443147&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0443147</a>, <a href="https://bioportal.bioontology.org/search?q=C1867440&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1867440</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000006</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000006</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> HEAD & NECK </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Face </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Facial muscle weakness <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/95666008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">95666008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R29.810" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R29.810</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/438.83" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">438.83</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/781.94" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">781.94</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0427055&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0427055</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007209" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007209</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0030319" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0030319</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0030319" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0030319</a>]</span><br /> -
Expressionless face <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/248149005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">248149005</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/103606006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">103606006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0424448&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0424448</a>, <a href="https://bioportal.bioontology.org/search?q=C0813217&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0813217</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000298" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000298</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0000338" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000338</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000298" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000298</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Eyes </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Ptosis, progressive <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834015&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834015</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007838" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007838</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/11934000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">11934000</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/29696001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">29696001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H02.409" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H02.409</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H02.40" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H02.40</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H02.4" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H02.4</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/374.3" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">374.3</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/374.30" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">374.30</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000508" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000508</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=76abf29563d4adc64d21da86221224b1" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Ptosis-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=76abf29563d4adc64d21da86221224b1&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br /> -
Extraocular movements may be mildly decreased <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834016&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834016</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Neck </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Neck muscle weakness <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0240479&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0240479</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000467" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000467</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000467" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000467</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> ABDOMEN </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Gastrointestinal </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Dysphagia, progressive <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0743319&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0743319</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/288939007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">288939007</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/40739000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">40739000</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R13.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R13.1</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/R13.10" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R13.10</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/787.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">787.2</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/787.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">787.20</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002015" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002015</a>]</span><br /> -
Coughing with swallowing <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1822007&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1822007</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> MUSCLE, SOFT TISSUES </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Pharyngeal muscle weakness <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0240749&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0240749</a>]</span><br /> -
Dysarthria <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/8011004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">8011004</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/438.13" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">438.13</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/784.51" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">784.51</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0013362&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0013362</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001260" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001260</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001260" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001260</a>]</span><br /> -
Dysphagia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/288939007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">288939007</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/40739000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">40739000</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R13.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R13.1</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/R13.10" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R13.10</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/787.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">787.2</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/787.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">787.20</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0011168&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0011168</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002015" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002015</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002015" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002015</a>]</span><br /> -
Decreased gag reflex <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/5799008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">5799008</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0751476&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0751476</a>]</span><br /> -
Proximal limb muscle weakness (occurs later) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834017&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834017</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/249939004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">249939004</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003701" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003701</a>]</span><br /> -
Gait abnormalities (occurs later) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834018&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834018</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/22325002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">22325002</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/781.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">781.2</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001288" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001288</a>]</span><br /> -
Distal limb muscle weakness (less common) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/249942005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">249942005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0427065&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0427065</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002460" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002460</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002460" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002460</a>]</span><br /> -
Decreased distal reflexes <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834020&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834020</a>]</span><br /> -
Muscle biopsy shows intranuclear tubulofilamentous inclusions <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834021&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834021</a>]</span><br /> -
Abnormal aggregation of mitochondria <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834022&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834022</a>]</span><br /> -
No ragged-red fibers <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834023&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834023</a>]</span><br />
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<strong> MISCELLANEOUS </strong>
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- Late-adult onset (fifth to sixth decade)<br /> -
Progressive disorder <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1864985&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1864985</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003676" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003676</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003676" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003676</a>]</span><br /> -
Autosomal recessive inheritance has been reported<br /> -
Carrier frequency 1:1,000 in French-Canadians in Quebec<br /> -
Carrier frequency 1:200,000 in France<br /> -
Carrier frequency 1:700 in Bukhara Jewish populations<br />
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<strong> MOLECULAR BASIS </strong>
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- Caused by a trinucleotide repeat expansion (GCG)n in the poly(A)-binding protein-2 gene (PABPN1, <a href="/entry/602279#0001">602279.0001</a>)<br />
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<h5>
Oculopharyngeal muscular dystrophy
- <a href="/phenotypicSeries/PS164300">PS164300</a>
- 2 Entries
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<strong>Phenotype</strong>
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<strong>Inheritance</strong>
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<strong>Phenotype<br />mapping key</strong>
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<strong>Phenotype<br />MIM number</strong>
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<strong>Gene/Locus</strong>
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<span class="mim-font">
<a href="/geneMap/7/127?start=-3&limit=10&highlight=127"> 7p15.2 </a>
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<a href="/entry/620460"> Oculopharyngeal muscular dystrophy 2 </a>
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<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
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<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<a href="/entry/620460"> 620460 </a>
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<a href="/entry/600124"> HNRNPA2B1 </a>
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<a href="/entry/600124"> 600124 </a>
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<a href="/geneMap/14/85?start=-3&limit=10&highlight=85"> 14q11.2 </a>
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<a href="/entry/164300"> Oculopharyngeal muscular dystrophy </a>
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<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
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<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<a href="/entry/164300"> 164300 </a>
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<a href="/entry/602279"> PABPN1 </a>
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<span class="mim-font">
<a href="/entry/602279"> 602279 </a>
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<p>A number sign (#) is used with this entry because of evidence that oculopharyngeal muscular dystrophy-1 (OPMD1) is caused by heterozygous mutation in the gene encoding poly(A)-binding protein-2 (PABPN1; <a href="/entry/602279">602279</a>) on chromosome 14q11.</p>
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<strong>Description</strong>
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<p>Oculopharyngeal muscular dystrophy-1 (OPMD1) is an autosomal dominant late-onset neuromuscular disease characterized by proximal muscle weakness, ptosis, and swallowing difficulty (summary by <a href="#23" class="mim-tip-reference" title="Robinson, D. O., Wills, A. J., Hammans, S. R., Read, S. P., Sillibourne, J. &lt;strong&gt;Oculopharyngeal muscular dystrophy: a point mutation which mimics the effect of the PABPN1 gene triplet repeat expansion mutation.&lt;/strong&gt; J. Med. Genet. 43: e23, 2006. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16648376/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;16648376&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=16648376[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.2005.037598&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="16648376">Robinson et al., 2006</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16648376" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Genetic Heterogeneity of Oculopharyngeal Muscular Dystrophy</em></strong></p><p>
See also OPMD2 (<a href="/entry/620460">620460</a>), caused by mutation in the HNRNPA2B1 gene (<a href="/entry/600124">600124</a>) on chromosome 7p15.</p>
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<strong>Clinical Features</strong>
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<p><a href="#34" class="mim-tip-reference" title="Victor, M., Hayes, R., Adams, R. D. &lt;strong&gt;Oculopharyngeal muscular dystrophy. A familial disease of late life characterized by dysphagia and progressive ptosis of the eyelids.&lt;/strong&gt; New Eng. J. Med. 267: 1267-1272, 1962.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/13997067/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;13997067&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJM196212202672501&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="13997067">Victor et al. (1962)</a> described a family with oculopharyngeal muscular dystrophy, an autosomal dominant disorder presenting in late life and characterized by dysphagia and progressive ptosis of the eyelids. Nine members of 3 generations were known to be affected. One affected member also had total external ophthalmoplegia and weakness of the limb-girdle muscles. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=13997067" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>The combination of ptosis and pharyngeal palsy had first been noted by <a href="#28" class="mim-tip-reference" title="Taylor, E. W. &lt;strong&gt;Progressive vagus-glossopharyngeal paralysis with ptosis: contribution to group of family diseases.&lt;/strong&gt; J. Nerv. Ment. Dis. 42: 129-139, 1915."None>Taylor (1915)</a>, who also commented on the familial nature of the syndrome. <a href="#16" class="mim-tip-reference" title="Hayes, R., London, W., Seidman, J., Embree, L. &lt;strong&gt;Oculopharyngeal muscular dystrophy. (Letter)&lt;/strong&gt; New Eng. J. Med. 268: 163, 1963.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/13963574/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;13963574&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJM196301172680319&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="13963574">Hayes et al. (1963)</a> succeeded in locating Taylor's original family and found that members of 2 subsequent generations had developed the disorder. In a family with this disorder observed in The Johns Hopkins Hospital, the anal and vesical sphincters were also involved (<a href="#29" class="mim-tip-reference" title="Teasdall, R. D., Schuster, M. M., Walsh, F. B. &lt;strong&gt;Sphincter involvement in ocular myopathy.&lt;/strong&gt; Arch. Neurol. 10: 446-448, 1964.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14120635/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;14120635&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.1964.00460170016002&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="14120635">Teasdall et al., 1964</a>). The family reported by <a href="#26" class="mim-tip-reference" title="Schotland, D. L., Rowland, L. P. &lt;strong&gt;Muscular dystrophy. Features ocular myopathy, distal myopathy, and myotonic dystrophy.&lt;/strong&gt; Arch. Neurol. 10: 433-445, 1964.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14120634/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;14120634&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.1964.00460170003001&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="14120634">Schotland and Rowland (1964)</a> may have had OPMD; 10 members had ptosis, ophthalmoparesis, dysphagia, and weakness and wasting of face, neck, and distal limb muscles. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=14120635+14120634+13963574" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#20" class="mim-tip-reference" title="Morgan-Hughes, J. A., Mair, W. G. P. &lt;strong&gt;Atypical muscle mitochondria in oculoskeletal myopathy.&lt;/strong&gt; Brain 96: 215-224, 1973.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/4268449/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;4268449&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/brain/96.2.215&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="4268449">Morgan-Hughes and Mair (1973)</a> studied 4 patients with what they termed 'oculoskeletal myopathy.' All patients complained of generalized muscle weakness and fatigability. All showed bilateral ptosis with external ophthalmoplegia, facial and sternocleidomastoid weakness, and diffuse wasting in the limbs. Two patients were dysphagic and 1 had pigmentary retinal degeneration. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=4268449" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#27" class="mim-tip-reference" title="Scrimgeour, E. M., Mastaglia, F. L. &lt;strong&gt;Oculopharyngeal and distal myopathy.&lt;/strong&gt; Am. J. Med. Genet. 17: 763-771, 1984.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/6720743/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;6720743&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320170407&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="6720743">Scrimgeour and Mastaglia (1984)</a> suggested that a recessive form of oculopharyngeal myopathy with distal myopathy was present in the Melanesian family they studied. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6720743" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#19" class="mim-tip-reference" title="Knoblauch, A., Koppel, M. &lt;strong&gt;Die okulopharyngeale Muskeldystrophie.&lt;/strong&gt; Schweiz. Med. Wschr. 114: 557-561, 1984.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/6474119/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;6474119&lt;/a&gt;]" pmid="6474119">Knoblauch and Koppel (1984)</a> described a family from eastern Switzerland with 7 affected persons in 3 generations. Bilateral ptosis and dysphagia began in the fourth decade. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6474119" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#4" class="mim-tip-reference" title="Becher, M. W., Morrison, L., Davis, L. E., Maki, W. C., King, M. K., Bicknell, J. M., Reinert, B. L., Bartolo, C., Bear, D. G. &lt;strong&gt;Oculopharyngeal muscular dystrophy in Hispanic New Mexicans.&lt;/strong&gt; J. A. M. A. 286: 2437-2440, 2001.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11712939/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;11712939&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/jama.286.19.2437&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="11712939">Becher et al. (2001)</a> studied outpatient records from the University of New Mexico Hospital from 1965 to 2001 and identified 216 persons from 39 Hispanic New Mexican kindreds who had OPMD. In patients with both ocular and pharyngeal muscle weakness, ptosis was just as likely to occur before or concurrent with dysphagia. Proximal limb muscle weakness and gait abnormalities were common and occurred later than ocular or pharyngeal weakness. No decrease in life expectancy was detected. Genetic analysis of 10 individuals from different kindreds revealed an identical polyalanine triplet repeat expansion, (GCG)9, in the PABP2 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11712939" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#15" class="mim-tip-reference" title="Goh, K. J., Wong, K. T., Nishino, I., Minami, N., Nonaka, I. &lt;strong&gt;Oculopharyngeal muscular dystrophy with PABPN1 mutation in a Chinese Malaysian woman.&lt;/strong&gt; Neuromusc. Disord. 15: 262-264, 2005.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15725589/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;15725589&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.nmd.2004.10.016&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="15725589">Goh et al. (2005)</a> reported a 64-year-old Chinese-Malaysian woman with OPMD who presented with a 6-year history of progressive dysphagia, dysarthria, and ptosis. Her mother and older brother, both of whom were deceased, were believed to be similarly affected. Muscle biopsy of the proband showed randomly distributed angulated fibers with rimmed vacuoles. Genetic analysis of the PABPN1 gene detected an expanded (GCG)9 and a normal (GCG)6 in the 2 alleles. <a href="#15" class="mim-tip-reference" title="Goh, K. J., Wong, K. T., Nishino, I., Minami, N., Nonaka, I. &lt;strong&gt;Oculopharyngeal muscular dystrophy with PABPN1 mutation in a Chinese Malaysian woman.&lt;/strong&gt; Neuromusc. Disord. 15: 262-264, 2005.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15725589/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;15725589&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.nmd.2004.10.016&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="15725589">Goh et al. (2005)</a> emphasized that this was a non-Japanese Asian family with OPMD. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15725589" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="pathogenesis" class="mim-anchor"></a>
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<strong>Pathogenesis</strong>
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<p><a href="#20" class="mim-tip-reference" title="Morgan-Hughes, J. A., Mair, W. G. P. &lt;strong&gt;Atypical muscle mitochondria in oculoskeletal myopathy.&lt;/strong&gt; Brain 96: 215-224, 1973.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/4268449/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;4268449&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/brain/96.2.215&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="4268449">Morgan-Hughes and Mair (1973)</a> found that triceps biopsies from patients with oculoskeletal myopathy contained isolated or clustered muscle fibers with accumulations of sarcoplasmic matter. The number of abnormal fibers ranged from 18% to 8% with no relation between the number of affected fibers and the severity or duration of the symptoms. Electron microscopy showed degenerative muscle fiber changes in all biopsy samples as well as striking abnormalities of muscle cell mitochondria. The mitochondria were seen to have laminated crystalline inclusions within the cristae. Some mitochondria were large with expanded area between the cristae, and some intercristal spaces were wide and electron dense. The authors stated that similar types of mitochondrial abnormalities have been described in other forms of myopathy. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=4268449" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#31" class="mim-tip-reference" title="Tome, F. M. S., Fardeau, M. &lt;strong&gt;Nuclear inclusions in oculopharyngeal dystrophy.&lt;/strong&gt; Acta Neuropath. 49: 85-87, 1980.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/6243839/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;6243839&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/BF00692226&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="6243839">Tome and Fardeau (1980)</a> identified collections of 8.5-nm tubular filaments within muscle fiber nuclei from patients with OPMD and suggested that the filaments were a characteristic morphologic feature of the disorder. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6243839" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#22" class="mim-tip-reference" title="Pauzner, R., Blatt, I., Mouallem, M., Ben-David, E., Farfel, Z., Sadeh, M. &lt;strong&gt;Mitochondrial abnormalities in oculopharyngeal muscular dystrophy.&lt;/strong&gt; Muscle Nerve 14: 947-952, 1991.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/1944407/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;1944407&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/mus.880141004&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="1944407">Pauzner et al. (1991)</a> reported the findings in a Jewish, non-Ashkenazi family derived from Uzbekistan, with affected persons in 4 generations. Electron microscopy of muscle biopsy specimens demonstrated bizarre large mitochondria with abnormal cristae, but no intranuclear inclusion bodies. Ragged-red fibers were not seen. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1944407" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#33" class="mim-tip-reference" title="Uyama, E., Nohira, O., Chateau, D., Tokunaga, M., Uchino, M., Okabe, T., Ando, M., Tome, F. M. S. &lt;strong&gt;Oculopharyngeal muscular dystrophy in two unrelated Japanese families.&lt;/strong&gt; Neurology 46: 773-778, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8618681/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;8618681&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/wnl.46.3.773&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="8618681">Uyama et al. (1996)</a> described identical intranuclear tubulofilamentous inclusions within the muscle fibers of affected members of 2 extensive Japanese pedigrees that were segregating late-onset ptosis without external ophthalmoplegia and dysphagia. The authors considered the presence of the intranuclear inclusions to be entirely specific for this disorder and the presence of rimmed vacuoles, absence of ophthalmoplegia, or cardiac dysfunction to be corroborative. Although they observed aggregation of mitochondria, those organelles had an otherwise normal appearance in their biopsies. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8618681" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>Intracellular amyloid-like inclusions formed by mutant proteins result from polyglutamine expansions in Huntington disease (HD; <a href="/entry/143100">143100</a>) and polyalanine expansions in the PABP2 gene in OPMD. <a href="#2" class="mim-tip-reference" title="Bao, Y. P., Sarkar, S., Uyama, E., Rubinsztein, D. C. &lt;strong&gt;Congo red, doxycycline, and HSP70 overexpression reduce aggregate formation and cell death in cell models of oculopharyngeal muscular dystrophy.&lt;/strong&gt; J. Med. Genet. 41: 47-51, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14729833/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;14729833&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.2003.014548&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="14729833">Bao et al. (2004)</a> found further parallels between these diseases: as had been observed in HD, they demonstrated that HSP70 (<a href="/entry/601113">601113</a>) and HDJ1 colocalized with PABP2 aggregates in muscle tissue from patients with OPMD and overexpression of HSP70 reduced mutant PABP2 aggregate formation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14729833" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>Using both immunoelectron microscopy and fluorescence confocal microscopy, <a href="#10" class="mim-tip-reference" title="Calado, A., Tome, F. M. S., Brais, B., Rouleau, G. A., Kuhn, U., Wahle, E., Carmo-Fonseca, M. &lt;strong&gt;Nuclear inclusions in oculopharyngeal muscular dystrophy consist of poly(A) binding protein 2 aggregates which sequester poly(A) RNA.&lt;/strong&gt; Hum. Molec. Genet. 9: 2321-2328, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11001936/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;11001936&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/oxfordjournals.hmg.a018924&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="11001936">Calado et al. (2000)</a> determined that the OPMD-specific nuclear inclusions were stained anti-PABP2 antibodies. In addition, the inclusions were labeled with antibodies directed against ubiquitin (see <a href="/entry/191339">191339</a>) and the subunits of the proteasome, and contained a less soluble form of PABP2 as well as poly(A) RNA. The authors suggested that the polyalanine expansions in PABP2 induce a misfolding and aggregation of the protein into insoluble inclusions, similarly to events in neurodegenerative diseases caused by CAG/polyglutamine expansions, and that in OPMD the polyalanine expansions in the PABP2 protein may interfere with the cellular traffic of poly(A) RNA. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11001936" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#1" class="mim-tip-reference" title="Abu-Baker, A., Messaed, C., Laganiere, J., Gaspar, C., Brais, B., Rouleau, G. A. &lt;strong&gt;Involvement of the ubiquitin-proteasome pathway and molecular chaperones in oculopharyngeal muscular dystrophy.&lt;/strong&gt; Hum. Molec. Genet. 12: 2609-2623, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12944420/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;12944420&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddg293&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="12944420">Abu-Baker et al. (2003)</a> reported that protein aggregation in a transient transfection cell model of OPMD directly impaired the function of the ubiquitin-proteasome pathway (UPP) as well as molecular chaperone functions. The proteasome inhibitor lactacystin caused significant increase of protein aggregation and toxicity. Overexpression of molecular chaperones HSP40 (DNAJB1; <a href="/entry/604572">604572</a>) and HSP70 (see <a href="/entry/140559">140559</a>) suppressed protein aggregation and toxicity, and aggregation of mutated PABPN1 protein carrying a polyalanine expansion (PABPN1-ala17; see <a href="/entry/602279">602279</a>) proportionally correlated with toxicity. Coexpression of chaperones in this cell model increased the solubility of PABPN1-ala17 and the rate of transfected cell survival. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12944420" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="inheritance" class="mim-anchor"></a>
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<strong>Inheritance</strong>
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</h4>
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<p>The transmission pattern of OPMD1 in the family reported by <a href="#34" class="mim-tip-reference" title="Victor, M., Hayes, R., Adams, R. D. &lt;strong&gt;Oculopharyngeal muscular dystrophy. A familial disease of late life characterized by dysphagia and progressive ptosis of the eyelids.&lt;/strong&gt; New Eng. J. Med. 267: 1267-1272, 1962.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/13997067/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;13997067&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJM196212202672501&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="13997067">Victor et al. (1962)</a> was consistent with autosomal dominant inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=13997067" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<div>
<a id="mapping" class="mim-anchor"></a>
<h4 href="#mimMappingFold" id="mimMappingToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Mapping</strong>
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<p>By linkage analysis of a homogeneous group of OPMD families, <a href="#8" class="mim-tip-reference" title="Brais, B., Xie, Y.-G., Sanson, M., Morgan, K., Weissenbach, J., Korczyn, A. D., Blumen, S. C., Fardeau, M., Tome, F. M. S., Bouchard, J.-P., Rouleau, G. A. &lt;strong&gt;The oculopharyngeal muscular dystrophy locus maps to the region of the cardiac alpha and beta myosin heavy chain genes on chromosome 14q11.2-q13.&lt;/strong&gt; Hum. Molec. Genet. 4: 429-434, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7795598/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;7795598&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/4.3.429&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="7795598">Brais et al. (1995)</a> identified a putative disease locus within a 5-cM segment of chromosome 14q11.2-q13. A maximum 2-point lod score of 14.73 at theta = 0.03 was obtained in 3 French Canadian families for linkage with an intronic cardiac beta-myosin heavy chain gene marker (MYH7; <a href="/entry/160760">160760</a>). <a href="#8" class="mim-tip-reference" title="Brais, B., Xie, Y.-G., Sanson, M., Morgan, K., Weissenbach, J., Korczyn, A. D., Blumen, S. C., Fardeau, M., Tome, F. M. S., Bouchard, J.-P., Rouleau, G. A. &lt;strong&gt;The oculopharyngeal muscular dystrophy locus maps to the region of the cardiac alpha and beta myosin heavy chain genes on chromosome 14q11.2-q13.&lt;/strong&gt; Hum. Molec. Genet. 4: 429-434, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7795598/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;7795598&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/4.3.429&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="7795598">Brais et al. (1995)</a> suggested that the MYH7 gene or the contiguously situated MYH6 gene (<a href="/entry/160710">160710</a>) could be the site of the mutation in this disorder. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7795598" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#30" class="mim-tip-reference" title="Teh, B. T., Sullivan, A.-A., Farnebo, F., Zander, C., Li, F. Y., Strachan, N., Schalling, M., Larsson, C., Sandstrom, P. &lt;strong&gt;Oculopharyngeal muscular dystrophy (OPMD) -- report and genetic studies of an Australian kindred.&lt;/strong&gt; Clin. Genet. 51: 52-55, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9084936/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;9084936&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1399-0004.1997.tb02415.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="9084936">Teh et al. (1997)</a> reported an Australian kindred of German descent with OPMD. Linkage analysis supported the previous assignment to 14q. Studies of repeat expansion found a CAG trinucleotide repeat that did not cosegregate with the disease. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9084936" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="molecularGenetics" class="mim-anchor"></a>
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<strong>Molecular Genetics</strong>
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<p><a href="#6" class="mim-tip-reference" title="Brais, B., Bouchard, J.-P., Xie, Y.-G., Rochefort, D. L., Chretien, N., Tome, F. M. S., Lafreniere, R. G., Rommens, J. M., Uyama, E., Nohira, O., Blumen, S., Korczyn, A. D., Heutink, P., Mathieu, J., Duranceau, A., Codere, F., Fardeau, M., Rouleau, G. A. &lt;strong&gt;Short GCG expansions in the PABP2 gene cause oculopharyngeal muscular dystrophy.&lt;/strong&gt; Nature Genet. 18: 164-167, 1998. Note: Erratum: Nature Genet. 19: 404 only, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9462747/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;9462747&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng0298-164&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="9462747">Brais et al. (1998)</a> found that patients with OPMD1 had an expansion of a wildtype (GCG)6 repeat encoding a polyalanine tract to a pathologic (GCG)8-13 (<a href="/entry/602279#0001">602279.0001</a>). In addition, a (GCG)7 allele (<a href="/entry/602279#0002">602279.0002</a>) was found in 2% of the population, consistent with a polymorphism. Patients who were compound heterozygotes for the (GCG)9 mutation and the (GCG)7 polymorphism had a more severe phenotype. Homozygosity for the (GCG)7 allele led to autosomal recessive OPMD. <a href="#6" class="mim-tip-reference" title="Brais, B., Bouchard, J.-P., Xie, Y.-G., Rochefort, D. L., Chretien, N., Tome, F. M. S., Lafreniere, R. G., Rommens, J. M., Uyama, E., Nohira, O., Blumen, S., Korczyn, A. D., Heutink, P., Mathieu, J., Duranceau, A., Codere, F., Fardeau, M., Rouleau, G. A. &lt;strong&gt;Short GCG expansions in the PABP2 gene cause oculopharyngeal muscular dystrophy.&lt;/strong&gt; Nature Genet. 18: 164-167, 1998. Note: Erratum: Nature Genet. 19: 404 only, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9462747/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;9462747&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng0298-164&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="9462747">Brais et al. (1998)</a> concluded that the (GCG)7 allele is an example of a polymorphism that can act either as a modifier of a dominant phenotype or as a recessive mutation. The authors postulated that pathologic expansions of the polyalanine tract may cause mutated PABP2 oligomers to accumulate as filament inclusions in nuclei. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9462747" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In a woman with OPMD, <a href="#23" class="mim-tip-reference" title="Robinson, D. O., Wills, A. J., Hammans, S. R., Read, S. P., Sillibourne, J. &lt;strong&gt;Oculopharyngeal muscular dystrophy: a point mutation which mimics the effect of the PABPN1 gene triplet repeat expansion mutation.&lt;/strong&gt; J. Med. Genet. 43: e23, 2006. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16648376/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;16648376&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=16648376[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.2005.037598&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="16648376">Robinson et al. (2006)</a> identified a heterozygous missense mutation in the PABPN1 gene (G12A; <a href="/entry/602279#0003">602279.0003</a>) that generated a contiguous sequence of 13 alanine codons, which is causative of disease in the common triplet repeat expansion mutation. The woman had disease onset at age 61 years and reported 5 affected family members. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16648376" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="genotypePhenotypeCorrelations" class="mim-anchor"></a>
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<strong>Genotype/Phenotype Correlations</strong>
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</h4>
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<p><a href="#6" class="mim-tip-reference" title="Brais, B., Bouchard, J.-P., Xie, Y.-G., Rochefort, D. L., Chretien, N., Tome, F. M. S., Lafreniere, R. G., Rommens, J. M., Uyama, E., Nohira, O., Blumen, S., Korczyn, A. D., Heutink, P., Mathieu, J., Duranceau, A., Codere, F., Fardeau, M., Rouleau, G. A. &lt;strong&gt;Short GCG expansions in the PABP2 gene cause oculopharyngeal muscular dystrophy.&lt;/strong&gt; Nature Genet. 18: 164-167, 1998. Note: Erratum: Nature Genet. 19: 404 only, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9462747/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;9462747&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng0298-164&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="9462747">Brais et al. (1998)</a> found that patients with OPMD who were heterozygous carriers of the (GCG)9 expansion had longer swallowing times for ice-cold water compared to controls. Three patients who were homozygous for the (GCG)9 expansion had slower swallowing times as well as earlier disease onset, in their thirties. Four patients who were compound heterozygous for the (GCG)9 mutation and the (GCG)7 polymorphism showed an average age at disease onset, but the most severe slowing of swallowing time. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9462747" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="populationGenetics" class="mim-anchor"></a>
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<strong>Population Genetics</strong>
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<p><a href="#3" class="mim-tip-reference" title="Barbeau, A. &lt;strong&gt;The syndrome of hereditary late onset ptosis and dysphagia in French-Canada. In: Kuhn, E. (ed.): Symposium ueber progressive Muskeldystrophie, Myotonie, Myasthenie.&lt;/strong&gt; Berlin: Springer-Verlag 1966. Pp. 102-109."None>Barbeau (1966)</a> showed that all of the numerous reported French Canadian cases could be traced back to a single ancestor who emigrated from France in the 1600s. By genealogic reconstruction, <a href="#7" class="mim-tip-reference" title="Brais, B., Rouleau, G. A., Bouchard, J.-P., Fardeau, M., Tome, F. M. S. &lt;strong&gt;Oculopharyngeal muscular dystrophy.&lt;/strong&gt; Semin. Neurol. 19: 59-66, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10711989/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10711989&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1055/s-2008-1040826&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="10711989">Brais et al. (1999)</a> demonstrated that the expanded (GCG)9 PABPN1 allele in French Canadian patients with OPMD was likely introduced by 3 French sisters in 1648. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10711989" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#13" class="mim-tip-reference" title="De Braekeleer, M. &lt;strong&gt;Hereditary disorders in Saguenay-Lac-St-Jean (Quebec, Canada).&lt;/strong&gt; Hum. Hered. 41: 141-146, 1991.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/1937486/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;1937486&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1159/000153992&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="1937486">De Braekeleer (1991)</a> estimated the frequency to be more than 1/7,500 in the Saguenay-Lac-Saint-Jean region of Quebec Province. <a href="#6" class="mim-tip-reference" title="Brais, B., Bouchard, J.-P., Xie, Y.-G., Rochefort, D. L., Chretien, N., Tome, F. M. S., Lafreniere, R. G., Rommens, J. M., Uyama, E., Nohira, O., Blumen, S., Korczyn, A. D., Heutink, P., Mathieu, J., Duranceau, A., Codere, F., Fardeau, M., Rouleau, G. A. &lt;strong&gt;Short GCG expansions in the PABP2 gene cause oculopharyngeal muscular dystrophy.&lt;/strong&gt; Nature Genet. 18: 164-167, 1998. Note: Erratum: Nature Genet. 19: 404 only, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9462747/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;9462747&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng0298-164&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="9462747">Brais et al. (1998)</a> cited data on estimates of the frequency of the OPMD mutation: 1 in 1,000 in the province of Quebec, approximately 1 in 200,000 in France, and 1 in 700 in Bukhara Jews living in Israel. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=1937486+9462747" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#5" class="mim-tip-reference" title="Blumen, S. C., Korczyn, A. D., Lavoie, H., Medynski, S., Chapman, J., Asherov, A., Nisipeanu, P., Inzelberg, R., Carasso, R. L., Bouchard, J.-P., Tome, F. M. S., Rouleau, G. A., Brais, B. &lt;strong&gt;Oculopharyngeal MD among Bukhara Jews is due to a founder (GCG)9 mutation in the PABP2 gene.&lt;/strong&gt; Neurology 55: 1267-1270, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11087766/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;11087766&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/wnl.55.9.1267&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="11087766">Blumen et al. (2000)</a> identified a common (GCG)9 expanded PABPN1 allele and a shared haplotype among 23 Bukhara Jewish patients from 8 unrelated families with OPMD. The mutation likely arose or was introduced into the population during the 13th or 14th centuries AD, when that specific Jewish population settled in Bukhara or Samarkand. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11087766" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#24" class="mim-tip-reference" title="Rodriguez, M., Camejo, C., Bertoni, B., Braida, C., Rodriguez, M. M., Brais, B., Medici, M., Roche, L. &lt;strong&gt;(GCG)11 founder mutation in the PABPN1 gene of OPMD Uruguayan families.&lt;/strong&gt; Neuromusc. Disord. 15: 185-190, 2005.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15694141/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;15694141&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.nmd.2004.10.012&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="15694141">Rodriguez et al. (2005)</a> found that affected members of 21 Uruguayan families with OPMD had an expanded (GCG)11 PABPN1 allele. Haplotype analysis indicated a founder effect, and the (GCG)11 allele was estimated in 37 to 53 generations. The disease allele was likely brought to Uruguay by a family of Canary Island settlers during immigration from Europe between the 18th and 19th centuries. The ancestral mutation may have originated between the 10th and 14th centuries in Old World Europe. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15694141" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#17" class="mim-tip-reference" title="Hino, H., Araki, K., Uyama, E., Takeya, M., Araki, M., Yoshinobu, K., Miike, K., Kawazoe, Y., Maeda, Y., Uchino, M., Yamamura, K. &lt;strong&gt;Myopathy phenotype in transgenic mice expressing mutated PABPN1 as a model of oculopharyngeal muscular dystrophy.&lt;/strong&gt; Hum. Molec. Genet. 13: 181-190, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14645203/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;14645203&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddh017&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="14645203">Hino et al. (2004)</a> generated transgenic mice expressing the human PABPN1 gene. Transgenic mice lines expressing normal PABPN1 with a 10-alanine stretch did not reveal myopathic changes, whereas lines expressing high levels of expanded PABPN1 with a 13-alanine stretch showed an apparent myopathy phenotype, especially in old age. Pathologic studies in the latter mice disclosed intranuclear inclusions consisting of aggregated mutant human PABPN1 product. Some TUNEL-positive nuclei were shown around degenerating fibers and in a cluster in the lesion in necrotic muscle fibers. The degree of myopathic change was more prominent in eyelid and pharyngeal muscles, and muscle weakness in limbs was apparent from the fatigability test. Nuclear inclusions seemed to develop gradually with aging, at least after 1 week of age, in transgenic mouse muscle. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14645203" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In COS-7 cells, <a href="#12" class="mim-tip-reference" title="Davies, J. E., Sarkar, S., Rubinsztein, D. C. &lt;strong&gt;Trehalose reduces aggregate formation and delays pathology in a transgenic mouse model of oculopharyngeal muscular dystrophy.&lt;/strong&gt; Hum. Molec. Genet. 15: 23-31, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16311254/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;16311254&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddi422&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="16311254">Davies et al. (2006)</a> found that trehalose (TREH; <a href="/entry/275360">275360</a>) reduced aggregate formation and toxicity of mutant PABPN1 with a repeat expansion. Oral administration of trehalose to OPMD transgenic mice attenuated muscle weakness, reduced aggregate formation, and decreased the number of apoptotic nuclei in skeletal muscle. Trehalose is thought to act by binding and stabilizing partially folded polyglutamine proteins. The findings suggested that therapy that reduces aggregation may be an effective treatment for OPMD. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16311254" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#11" class="mim-tip-reference" title="Chartier, A., Raz, V., Sterrenburg, E., Verrips, C. T., van der Maarel, S. M., Simonelig, M. &lt;strong&gt;Prevention of oculopharyngeal muscular dystrophy by muscular expression of Llama single-chain intrabodies in vivo.&lt;/strong&gt; Hum. Molec. Genet. 18: 1849-1859, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19258344/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;19258344&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddp101&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="19258344">Chartier et al. (2009)</a> noted that intrabodies are antibodies that are modified to be expressed intracellularly and target specific antigens in subcellular locations. They are commonly generated by artificially linking the variable domains of antibody heavy and light chains. Mammals of the Camelidae family, including llamas, produce natural single-chain antibodies, which when engineered combine the advantages of being single-chain, small-sized, and very stable. Using the Drosophila model of OPMD, the authors showed the in vivo efficiency of llama intrabodies against PABPN1. Among 6 anti-PABPN1 intrabodies expressed in muscle nuclei, the 3F5 intrabody was a strong suppressor of OPMD muscle degeneration in Drosophila, leading to nearly complete rescue. Expression of the 3F5 intrabody affected PABPN1 aggregation and restored muscle gene expression. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19258344" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#32" class="mim-tip-reference" title="Trollet, C., Anvar, S. Y., Vanema, A., Hargreaves, I. P., Foster, K., Vignaud, A., Ferry, A., Negroni, E., Hourde, C., Baraibar, M. A., &#x27;t Hoen, P. A. C., Davies, J. E., Rubinsztein, D. C., Heales, S. J., Mouly, V., van der Maarel, S. M., Butler-Browne, G., Raz V., Dickson, G. &lt;strong&gt;Molecular and phenotypic characterization of a mouse model of oculopharyngeal muscular dystrophy reveals severe muscular atrophy restricted to fast glycolytic fibres.&lt;/strong&gt; Hum. Molec. Genet. 19: 2191-2207, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20207626/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;20207626&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddq098&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="20207626">Trollet et al. (2010)</a> used a transgenic mouse model of OPMD (A17.1) to perform transcriptomic studies combined with a detailed phenotypic characterization of this model at 3 time points. The transcriptomic analysis revealed a massive gene deregulation in the A17.1 mice, among which was a significant deregulation of pathways associated with muscle atrophy. One-third of the progressive genes were also associated with muscle atrophy. Functional and histologic analysis of skeletal muscle in this mouse model confirmed a severe and progressive muscular atrophy associated with a reduction in muscle strength. Moreover, muscle atrophy in the A17.1 mice was restricted to fast glycolytic fibers, which contained a large number of intranuclear inclusions. The soleus muscle and, in particular, oxidative fibers, were spared even though they contained intranuclear inclusions, albeit to a lesser degree. The authors concluded that there was a fiber-type specificity of muscle atrophy in this OPMD model. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20207626" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>See Also:</strong>
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<a href="#Bray1965" class="mim-tip-reference" title="Bray, G. M., Kaarsoo, M., Ross, R. T. &lt;strong&gt;Ocular myopathy with dysphagia.&lt;/strong&gt; Neurology 15: 678-684, 1965.">Bray et al. (1965)</a>; <a href="#Fukuhara1982" class="mim-tip-reference" title="Fukuhara, N., Kumamoto, T., Tsubaki, T., Mayuzumi, T., Nitta, H. &lt;strong&gt;Oculopharyngeal muscular dystrophy and distal myopathy.&lt;/strong&gt; Acta Neurol. Scand. 65: 458-467, 1982.">Fukuhara et al. (1982)</a>; <a href="#Kiloh1951" class="mim-tip-reference" title="Kiloh, L. G., Nevin, S. &lt;strong&gt;Progressive dystrophy of the external ocular muscles (ocular myopathy).&lt;/strong&gt; Brain 74: 115-143, 1951.">Kiloh and Nevin (1951)</a>; <a href="#Murphy1968" class="mim-tip-reference" title="Murphy, S. F., Drachman, D. B. &lt;strong&gt;The oculopharyngeal syndrome.&lt;/strong&gt; JAMA 203: 1003-1008, 1968.">Murphy and Drachman (1968)</a>; <a href="#Schmitt1981" class="mim-tip-reference" title="Schmitt, H. P., Krause, K. H. &lt;strong&gt;An autopsy study of a familial oculopharyngeal muscular dystrophy (OPMD) with distal spread and neurogenic involvement.&lt;/strong&gt; Muscle Nerve 4: 296-305, 1981.">Schmitt and Krause (1981)</a>
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<a id="Abu-Baker2003" class="mim-anchor"></a>
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Abu-Baker, A., Messaed, C., Laganiere, J., Gaspar, C., Brais, B., Rouleau, G. A.
<strong>Involvement of the ubiquitin-proteasome pathway and molecular chaperones in oculopharyngeal muscular dystrophy.</strong>
Hum. Molec. Genet. 12: 2609-2623, 2003.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12944420/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12944420</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12944420" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/hmg/ddg293" target="_blank">Full Text</a>]
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<a id="Bao2004" class="mim-anchor"></a>
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Bao, Y. P., Sarkar, S., Uyama, E., Rubinsztein, D. C.
<strong>Congo red, doxycycline, and HSP70 overexpression reduce aggregate formation and cell death in cell models of oculopharyngeal muscular dystrophy.</strong>
J. Med. Genet. 41: 47-51, 2004.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/14729833/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">14729833</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14729833" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1136/jmg.2003.014548" target="_blank">Full Text</a>]
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Barbeau, A.
<strong>The syndrome of hereditary late onset ptosis and dysphagia in French-Canada. In: Kuhn, E. (ed.): Symposium ueber progressive Muskeldystrophie, Myotonie, Myasthenie.</strong>
Berlin: Springer-Verlag 1966. Pp. 102-109.
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<a id="Becher2001" class="mim-anchor"></a>
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Becher, M. W., Morrison, L., Davis, L. E., Maki, W. C., King, M. K., Bicknell, J. M., Reinert, B. L., Bartolo, C., Bear, D. G.
<strong>Oculopharyngeal muscular dystrophy in Hispanic New Mexicans.</strong>
J. A. M. A. 286: 2437-2440, 2001.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/11712939/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">11712939</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11712939" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1001/jama.286.19.2437" target="_blank">Full Text</a>]
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<a id="Blumen2000" class="mim-anchor"></a>
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Blumen, S. C., Korczyn, A. D., Lavoie, H., Medynski, S., Chapman, J., Asherov, A., Nisipeanu, P., Inzelberg, R., Carasso, R. L., Bouchard, J.-P., Tome, F. M. S., Rouleau, G. A., Brais, B.
<strong>Oculopharyngeal MD among Bukhara Jews is due to a founder (GCG)9 mutation in the PABP2 gene.</strong>
Neurology 55: 1267-1270, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/11087766/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">11087766</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11087766" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1212/wnl.55.9.1267" target="_blank">Full Text</a>]
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<a id="Brais1998" class="mim-anchor"></a>
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Brais, B., Bouchard, J.-P., Xie, Y.-G., Rochefort, D. L., Chretien, N., Tome, F. M. S., Lafreniere, R. G., Rommens, J. M., Uyama, E., Nohira, O., Blumen, S., Korczyn, A. D., Heutink, P., Mathieu, J., Duranceau, A., Codere, F., Fardeau, M., Rouleau, G. A.
<strong>Short GCG expansions in the PABP2 gene cause oculopharyngeal muscular dystrophy.</strong>
Nature Genet. 18: 164-167, 1998. Note: Erratum: Nature Genet. 19: 404 only, 1998.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9462747/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9462747</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9462747" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/ng0298-164" target="_blank">Full Text</a>]
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<a id="Brais1999" class="mim-anchor"></a>
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Brais, B., Rouleau, G. A., Bouchard, J.-P., Fardeau, M., Tome, F. M. S.
<strong>Oculopharyngeal muscular dystrophy.</strong>
Semin. Neurol. 19: 59-66, 1999.
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[<a href="https://doi.org/10.1055/s-2008-1040826" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1093/hmg/4.3.429" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1212/wnl.15.7.678" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1093/oxfordjournals.hmg.a018924" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1093/hmg/ddp101" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1093/hmg/ddi422" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1159/000153992" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1111/j.1600-0404.1982.tb03103.x" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1016/j.nmd.2004.10.016" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1056/NEJM196301172680319" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1093/hmg/ddh017" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1093/brain/74.2.115" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1093/brain/96.2.215" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1002/mus.880141004" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1136/jmg.2005.037598" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1016/j.nmd.2004.10.012" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1002/mus.880040406" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1001/archneur.1964.00460170003001" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1002/ajmg.1320170407" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1001/archneur.1964.00460170016002" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1111/j.1399-0004.1997.tb02415.x" target="_blank">Full Text</a>]
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<strong>Nuclear inclusions in oculopharyngeal dystrophy.</strong>
Acta Neuropath. 49: 85-87, 1980.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/6243839/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">6243839</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6243839" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/BF00692226" target="_blank">Full Text</a>]
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<a id="Trollet2010" class="mim-anchor"></a>
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Trollet, C., Anvar, S. Y., Vanema, A., Hargreaves, I. P., Foster, K., Vignaud, A., Ferry, A., Negroni, E., Hourde, C., Baraibar, M. A., 't Hoen, P. A. C., Davies, J. E., Rubinsztein, D. C., Heales, S. J., Mouly, V., van der Maarel, S. M., Butler-Browne, G., Raz V., Dickson, G.
<strong>Molecular and phenotypic characterization of a mouse model of oculopharyngeal muscular dystrophy reveals severe muscular atrophy restricted to fast glycolytic fibres.</strong>
Hum. Molec. Genet. 19: 2191-2207, 2010.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/20207626/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">20207626</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20207626" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/hmg/ddq098" target="_blank">Full Text</a>]
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<a id="Uyama1996" class="mim-anchor"></a>
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Uyama, E., Nohira, O., Chateau, D., Tokunaga, M., Uchino, M., Okabe, T., Ando, M., Tome, F. M. S.
<strong>Oculopharyngeal muscular dystrophy in two unrelated Japanese families.</strong>
Neurology 46: 773-778, 1996.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8618681/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8618681</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8618681" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1212/wnl.46.3.773" target="_blank">Full Text</a>]
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<a id="Victor1962" class="mim-anchor"></a>
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Victor, M., Hayes, R., Adams, R. D.
<strong>Oculopharyngeal muscular dystrophy. A familial disease of late life characterized by dysphagia and progressive ptosis of the eyelids.</strong>
New Eng. J. Med. 267: 1267-1272, 1962.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/13997067/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">13997067</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=13997067" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1056/NEJM196212202672501" target="_blank">Full Text</a>]
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George E. Tiller - updated : 8/19/2013
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George E. Tiller - updated : 2/22/2010<br>Cassandra L. Kniffin - updated : 11/2/2009<br>Cassandra L. Kniffin - updated : 6/2/2006<br>George E. Tiller - updated : 2/17/2006<br>George E. Tiller - updated : 9/12/2005<br>Cassandra L. Kniffin - reorganized : 4/20/2005<br>Cassandra L. Kniffin - updated : 4/8/2005<br>Victor A. McKusick - updated : 6/21/2004<br>Deborah L. Stone - updated : 8/8/2002<br>Victor A. McKusick - updated : 1/23/1998<br>Victor A. McKusick - updated : 5/7/1997<br>Orest Hurko - updated : 5/8/1996
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Creation Date:
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Victor A. McKusick : 6/2/1986
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alopez : 08/03/2023
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ckniffin : 08/02/2023<br>alopez : 10/13/2021<br>carol : 06/04/2021<br>alopez : 10/10/2016<br>carol : 02/25/2014<br>tpirozzi : 8/20/2013<br>tpirozzi : 8/19/2013<br>terry : 7/27/2012<br>terry : 10/26/2011<br>wwang : 2/24/2010<br>terry : 2/22/2010<br>wwang : 11/4/2009<br>ckniffin : 11/2/2009<br>wwang : 6/23/2009<br>terry : 6/3/2009<br>carol : 2/7/2008<br>wwang : 6/12/2006<br>ckniffin : 6/2/2006<br>wwang : 3/9/2006<br>terry : 2/17/2006<br>terry : 12/14/2005<br>alopez : 10/21/2005<br>terry : 9/12/2005<br>carol : 8/26/2005<br>tkritzer : 4/20/2005<br>ckniffin : 4/8/2005<br>tkritzer : 6/21/2004<br>tkritzer : 8/9/2002<br>tkritzer : 8/8/2002<br>tkritzer : 8/8/2002<br>tkritzer : 8/8/2002<br>carol : 11/30/1998<br>alopez : 5/20/1998<br>mark : 1/26/1998<br>terry : 1/23/1998<br>mark : 5/7/1997<br>terry : 5/7/1997<br>mark : 5/8/1996<br>terry : 5/3/1996<br>mark : 4/25/1995<br>mimadm : 12/2/1994<br>davew : 7/14/1994<br>supermim : 3/16/1992<br>carol : 3/8/1992<br>carol : 11/5/1991
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<strong>#</strong> 164300
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OCULOPHARYNGEAL MUSCULAR DYSTROPHY 1; OPMD1
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<em>Alternative titles; symbols</em>
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MUSCULAR DYSTROPHY, OCULOPHARYNGEAL
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<strong>SNOMEDCT:</strong> 77097004; &nbsp;
<strong>ICD10CM:</strong> G71.09; &nbsp;
<strong>ORPHA:</strong> 270; &nbsp;
<strong>DO:</strong> 11719; &nbsp;
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<strong>Phenotype-Gene Relationships</strong>
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Location
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Phenotype
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Phenotype <br /> MIM number
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Inheritance
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Phenotype <br /> mapping key
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Gene/Locus
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Gene/Locus <br /> MIM number
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14q11.2
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Oculopharyngeal muscular dystrophy
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164300
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Autosomal dominant
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3
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PABPN1
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602279
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that oculopharyngeal muscular dystrophy-1 (OPMD1) is caused by heterozygous mutation in the gene encoding poly(A)-binding protein-2 (PABPN1; 602279) on chromosome 14q11.</p>
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<strong>Description</strong>
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<p>Oculopharyngeal muscular dystrophy-1 (OPMD1) is an autosomal dominant late-onset neuromuscular disease characterized by proximal muscle weakness, ptosis, and swallowing difficulty (summary by Robinson et al., 2006). </p><p><strong><em>Genetic Heterogeneity of Oculopharyngeal Muscular Dystrophy</em></strong></p><p>
See also OPMD2 (620460), caused by mutation in the HNRNPA2B1 gene (600124) on chromosome 7p15.</p>
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<strong>Clinical Features</strong>
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<p>Victor et al. (1962) described a family with oculopharyngeal muscular dystrophy, an autosomal dominant disorder presenting in late life and characterized by dysphagia and progressive ptosis of the eyelids. Nine members of 3 generations were known to be affected. One affected member also had total external ophthalmoplegia and weakness of the limb-girdle muscles. </p><p>The combination of ptosis and pharyngeal palsy had first been noted by Taylor (1915), who also commented on the familial nature of the syndrome. Hayes et al. (1963) succeeded in locating Taylor's original family and found that members of 2 subsequent generations had developed the disorder. In a family with this disorder observed in The Johns Hopkins Hospital, the anal and vesical sphincters were also involved (Teasdall et al., 1964). The family reported by Schotland and Rowland (1964) may have had OPMD; 10 members had ptosis, ophthalmoparesis, dysphagia, and weakness and wasting of face, neck, and distal limb muscles. </p><p>Morgan-Hughes and Mair (1973) studied 4 patients with what they termed 'oculoskeletal myopathy.' All patients complained of generalized muscle weakness and fatigability. All showed bilateral ptosis with external ophthalmoplegia, facial and sternocleidomastoid weakness, and diffuse wasting in the limbs. Two patients were dysphagic and 1 had pigmentary retinal degeneration. </p><p>Scrimgeour and Mastaglia (1984) suggested that a recessive form of oculopharyngeal myopathy with distal myopathy was present in the Melanesian family they studied. </p><p>Knoblauch and Koppel (1984) described a family from eastern Switzerland with 7 affected persons in 3 generations. Bilateral ptosis and dysphagia began in the fourth decade. </p><p>Becher et al. (2001) studied outpatient records from the University of New Mexico Hospital from 1965 to 2001 and identified 216 persons from 39 Hispanic New Mexican kindreds who had OPMD. In patients with both ocular and pharyngeal muscle weakness, ptosis was just as likely to occur before or concurrent with dysphagia. Proximal limb muscle weakness and gait abnormalities were common and occurred later than ocular or pharyngeal weakness. No decrease in life expectancy was detected. Genetic analysis of 10 individuals from different kindreds revealed an identical polyalanine triplet repeat expansion, (GCG)9, in the PABP2 gene. </p><p>Goh et al. (2005) reported a 64-year-old Chinese-Malaysian woman with OPMD who presented with a 6-year history of progressive dysphagia, dysarthria, and ptosis. Her mother and older brother, both of whom were deceased, were believed to be similarly affected. Muscle biopsy of the proband showed randomly distributed angulated fibers with rimmed vacuoles. Genetic analysis of the PABPN1 gene detected an expanded (GCG)9 and a normal (GCG)6 in the 2 alleles. Goh et al. (2005) emphasized that this was a non-Japanese Asian family with OPMD. </p>
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<strong>Pathogenesis</strong>
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<p>Morgan-Hughes and Mair (1973) found that triceps biopsies from patients with oculoskeletal myopathy contained isolated or clustered muscle fibers with accumulations of sarcoplasmic matter. The number of abnormal fibers ranged from 18% to 8% with no relation between the number of affected fibers and the severity or duration of the symptoms. Electron microscopy showed degenerative muscle fiber changes in all biopsy samples as well as striking abnormalities of muscle cell mitochondria. The mitochondria were seen to have laminated crystalline inclusions within the cristae. Some mitochondria were large with expanded area between the cristae, and some intercristal spaces were wide and electron dense. The authors stated that similar types of mitochondrial abnormalities have been described in other forms of myopathy. </p><p>Tome and Fardeau (1980) identified collections of 8.5-nm tubular filaments within muscle fiber nuclei from patients with OPMD and suggested that the filaments were a characteristic morphologic feature of the disorder. </p><p>Pauzner et al. (1991) reported the findings in a Jewish, non-Ashkenazi family derived from Uzbekistan, with affected persons in 4 generations. Electron microscopy of muscle biopsy specimens demonstrated bizarre large mitochondria with abnormal cristae, but no intranuclear inclusion bodies. Ragged-red fibers were not seen. </p><p>Uyama et al. (1996) described identical intranuclear tubulofilamentous inclusions within the muscle fibers of affected members of 2 extensive Japanese pedigrees that were segregating late-onset ptosis without external ophthalmoplegia and dysphagia. The authors considered the presence of the intranuclear inclusions to be entirely specific for this disorder and the presence of rimmed vacuoles, absence of ophthalmoplegia, or cardiac dysfunction to be corroborative. Although they observed aggregation of mitochondria, those organelles had an otherwise normal appearance in their biopsies. </p><p>Intracellular amyloid-like inclusions formed by mutant proteins result from polyglutamine expansions in Huntington disease (HD; 143100) and polyalanine expansions in the PABP2 gene in OPMD. Bao et al. (2004) found further parallels between these diseases: as had been observed in HD, they demonstrated that HSP70 (601113) and HDJ1 colocalized with PABP2 aggregates in muscle tissue from patients with OPMD and overexpression of HSP70 reduced mutant PABP2 aggregate formation. </p><p>Using both immunoelectron microscopy and fluorescence confocal microscopy, Calado et al. (2000) determined that the OPMD-specific nuclear inclusions were stained anti-PABP2 antibodies. In addition, the inclusions were labeled with antibodies directed against ubiquitin (see 191339) and the subunits of the proteasome, and contained a less soluble form of PABP2 as well as poly(A) RNA. The authors suggested that the polyalanine expansions in PABP2 induce a misfolding and aggregation of the protein into insoluble inclusions, similarly to events in neurodegenerative diseases caused by CAG/polyglutamine expansions, and that in OPMD the polyalanine expansions in the PABP2 protein may interfere with the cellular traffic of poly(A) RNA. </p><p>Abu-Baker et al. (2003) reported that protein aggregation in a transient transfection cell model of OPMD directly impaired the function of the ubiquitin-proteasome pathway (UPP) as well as molecular chaperone functions. The proteasome inhibitor lactacystin caused significant increase of protein aggregation and toxicity. Overexpression of molecular chaperones HSP40 (DNAJB1; 604572) and HSP70 (see 140559) suppressed protein aggregation and toxicity, and aggregation of mutated PABPN1 protein carrying a polyalanine expansion (PABPN1-ala17; see 602279) proportionally correlated with toxicity. Coexpression of chaperones in this cell model increased the solubility of PABPN1-ala17 and the rate of transfected cell survival. </p>
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<strong>Inheritance</strong>
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<p>The transmission pattern of OPMD1 in the family reported by Victor et al. (1962) was consistent with autosomal dominant inheritance. </p>
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<strong>Mapping</strong>
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<p>By linkage analysis of a homogeneous group of OPMD families, Brais et al. (1995) identified a putative disease locus within a 5-cM segment of chromosome 14q11.2-q13. A maximum 2-point lod score of 14.73 at theta = 0.03 was obtained in 3 French Canadian families for linkage with an intronic cardiac beta-myosin heavy chain gene marker (MYH7; 160760). Brais et al. (1995) suggested that the MYH7 gene or the contiguously situated MYH6 gene (160710) could be the site of the mutation in this disorder. </p><p>Teh et al. (1997) reported an Australian kindred of German descent with OPMD. Linkage analysis supported the previous assignment to 14q. Studies of repeat expansion found a CAG trinucleotide repeat that did not cosegregate with the disease. </p>
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<strong>Molecular Genetics</strong>
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<p>Brais et al. (1998) found that patients with OPMD1 had an expansion of a wildtype (GCG)6 repeat encoding a polyalanine tract to a pathologic (GCG)8-13 (602279.0001). In addition, a (GCG)7 allele (602279.0002) was found in 2% of the population, consistent with a polymorphism. Patients who were compound heterozygotes for the (GCG)9 mutation and the (GCG)7 polymorphism had a more severe phenotype. Homozygosity for the (GCG)7 allele led to autosomal recessive OPMD. Brais et al. (1998) concluded that the (GCG)7 allele is an example of a polymorphism that can act either as a modifier of a dominant phenotype or as a recessive mutation. The authors postulated that pathologic expansions of the polyalanine tract may cause mutated PABP2 oligomers to accumulate as filament inclusions in nuclei. </p><p>In a woman with OPMD, Robinson et al. (2006) identified a heterozygous missense mutation in the PABPN1 gene (G12A; 602279.0003) that generated a contiguous sequence of 13 alanine codons, which is causative of disease in the common triplet repeat expansion mutation. The woman had disease onset at age 61 years and reported 5 affected family members. </p>
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<strong>Genotype/Phenotype Correlations</strong>
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<p>Brais et al. (1998) found that patients with OPMD who were heterozygous carriers of the (GCG)9 expansion had longer swallowing times for ice-cold water compared to controls. Three patients who were homozygous for the (GCG)9 expansion had slower swallowing times as well as earlier disease onset, in their thirties. Four patients who were compound heterozygous for the (GCG)9 mutation and the (GCG)7 polymorphism showed an average age at disease onset, but the most severe slowing of swallowing time. </p>
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<strong>Population Genetics</strong>
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<p>Barbeau (1966) showed that all of the numerous reported French Canadian cases could be traced back to a single ancestor who emigrated from France in the 1600s. By genealogic reconstruction, Brais et al. (1999) demonstrated that the expanded (GCG)9 PABPN1 allele in French Canadian patients with OPMD was likely introduced by 3 French sisters in 1648. </p><p>De Braekeleer (1991) estimated the frequency to be more than 1/7,500 in the Saguenay-Lac-Saint-Jean region of Quebec Province. Brais et al. (1998) cited data on estimates of the frequency of the OPMD mutation: 1 in 1,000 in the province of Quebec, approximately 1 in 200,000 in France, and 1 in 700 in Bukhara Jews living in Israel. </p><p>Blumen et al. (2000) identified a common (GCG)9 expanded PABPN1 allele and a shared haplotype among 23 Bukhara Jewish patients from 8 unrelated families with OPMD. The mutation likely arose or was introduced into the population during the 13th or 14th centuries AD, when that specific Jewish population settled in Bukhara or Samarkand. </p><p>Rodriguez et al. (2005) found that affected members of 21 Uruguayan families with OPMD had an expanded (GCG)11 PABPN1 allele. Haplotype analysis indicated a founder effect, and the (GCG)11 allele was estimated in 37 to 53 generations. The disease allele was likely brought to Uruguay by a family of Canary Island settlers during immigration from Europe between the 18th and 19th centuries. The ancestral mutation may have originated between the 10th and 14th centuries in Old World Europe. </p>
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<strong>Animal Model</strong>
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<p>Hino et al. (2004) generated transgenic mice expressing the human PABPN1 gene. Transgenic mice lines expressing normal PABPN1 with a 10-alanine stretch did not reveal myopathic changes, whereas lines expressing high levels of expanded PABPN1 with a 13-alanine stretch showed an apparent myopathy phenotype, especially in old age. Pathologic studies in the latter mice disclosed intranuclear inclusions consisting of aggregated mutant human PABPN1 product. Some TUNEL-positive nuclei were shown around degenerating fibers and in a cluster in the lesion in necrotic muscle fibers. The degree of myopathic change was more prominent in eyelid and pharyngeal muscles, and muscle weakness in limbs was apparent from the fatigability test. Nuclear inclusions seemed to develop gradually with aging, at least after 1 week of age, in transgenic mouse muscle. </p><p>In COS-7 cells, Davies et al. (2006) found that trehalose (TREH; 275360) reduced aggregate formation and toxicity of mutant PABPN1 with a repeat expansion. Oral administration of trehalose to OPMD transgenic mice attenuated muscle weakness, reduced aggregate formation, and decreased the number of apoptotic nuclei in skeletal muscle. Trehalose is thought to act by binding and stabilizing partially folded polyglutamine proteins. The findings suggested that therapy that reduces aggregation may be an effective treatment for OPMD. </p><p>Chartier et al. (2009) noted that intrabodies are antibodies that are modified to be expressed intracellularly and target specific antigens in subcellular locations. They are commonly generated by artificially linking the variable domains of antibody heavy and light chains. Mammals of the Camelidae family, including llamas, produce natural single-chain antibodies, which when engineered combine the advantages of being single-chain, small-sized, and very stable. Using the Drosophila model of OPMD, the authors showed the in vivo efficiency of llama intrabodies against PABPN1. Among 6 anti-PABPN1 intrabodies expressed in muscle nuclei, the 3F5 intrabody was a strong suppressor of OPMD muscle degeneration in Drosophila, leading to nearly complete rescue. Expression of the 3F5 intrabody affected PABPN1 aggregation and restored muscle gene expression. </p><p>Trollet et al. (2010) used a transgenic mouse model of OPMD (A17.1) to perform transcriptomic studies combined with a detailed phenotypic characterization of this model at 3 time points. The transcriptomic analysis revealed a massive gene deregulation in the A17.1 mice, among which was a significant deregulation of pathways associated with muscle atrophy. One-third of the progressive genes were also associated with muscle atrophy. Functional and histologic analysis of skeletal muscle in this mouse model confirmed a severe and progressive muscular atrophy associated with a reduction in muscle strength. Moreover, muscle atrophy in the A17.1 mice was restricted to fast glycolytic fibers, which contained a large number of intranuclear inclusions. The soleus muscle and, in particular, oxidative fibers, were spared even though they contained intranuclear inclusions, albeit to a lesser degree. The authors concluded that there was a fiber-type specificity of muscle atrophy in this OPMD model. </p>
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<strong>See Also:</strong>
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Bray et al. (1965); Fukuhara et al. (1982); Kiloh and Nevin (1951);
Murphy and Drachman (1968); Schmitt and Krause (1981)
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<h4>
<span class="mim-font">
<strong>REFERENCES</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<ol>
<li>
<p class="mim-text-font">
Abu-Baker, A., Messaed, C., Laganiere, J., Gaspar, C., Brais, B., Rouleau, G. A.
<strong>Involvement of the ubiquitin-proteasome pathway and molecular chaperones in oculopharyngeal muscular dystrophy.</strong>
Hum. Molec. Genet. 12: 2609-2623, 2003.
[PubMed: 12944420]
[Full Text: https://doi.org/10.1093/hmg/ddg293]
</p>
</li>
<li>
<p class="mim-text-font">
Bao, Y. P., Sarkar, S., Uyama, E., Rubinsztein, D. C.
<strong>Congo red, doxycycline, and HSP70 overexpression reduce aggregate formation and cell death in cell models of oculopharyngeal muscular dystrophy.</strong>
J. Med. Genet. 41: 47-51, 2004.
[PubMed: 14729833]
[Full Text: https://doi.org/10.1136/jmg.2003.014548]
</p>
</li>
<li>
<p class="mim-text-font">
Barbeau, A.
<strong>The syndrome of hereditary late onset ptosis and dysphagia in French-Canada. In: Kuhn, E. (ed.): Symposium ueber progressive Muskeldystrophie, Myotonie, Myasthenie.</strong>
Berlin: Springer-Verlag 1966. Pp. 102-109.
</p>
</li>
<li>
<p class="mim-text-font">
Becher, M. W., Morrison, L., Davis, L. E., Maki, W. C., King, M. K., Bicknell, J. M., Reinert, B. L., Bartolo, C., Bear, D. G.
<strong>Oculopharyngeal muscular dystrophy in Hispanic New Mexicans.</strong>
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<p class="mim-text-font">
Blumen, S. C., Korczyn, A. D., Lavoie, H., Medynski, S., Chapman, J., Asherov, A., Nisipeanu, P., Inzelberg, R., Carasso, R. L., Bouchard, J.-P., Tome, F. M. S., Rouleau, G. A., Brais, B.
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Neurology 55: 1267-1270, 2000.
[PubMed: 11087766]
[Full Text: https://doi.org/10.1212/wnl.55.9.1267]
</p>
</li>
<li>
<p class="mim-text-font">
Brais, B., Bouchard, J.-P., Xie, Y.-G., Rochefort, D. L., Chretien, N., Tome, F. M. S., Lafreniere, R. G., Rommens, J. M., Uyama, E., Nohira, O., Blumen, S., Korczyn, A. D., Heutink, P., Mathieu, J., Duranceau, A., Codere, F., Fardeau, M., Rouleau, G. A.
<strong>Short GCG expansions in the PABP2 gene cause oculopharyngeal muscular dystrophy.</strong>
Nature Genet. 18: 164-167, 1998. Note: Erratum: Nature Genet. 19: 404 only, 1998.
[PubMed: 9462747]
[Full Text: https://doi.org/10.1038/ng0298-164]
</p>
</li>
<li>
<p class="mim-text-font">
Brais, B., Rouleau, G. A., Bouchard, J.-P., Fardeau, M., Tome, F. M. S.
<strong>Oculopharyngeal muscular dystrophy.</strong>
Semin. Neurol. 19: 59-66, 1999.
[PubMed: 10711989]
[Full Text: https://doi.org/10.1055/s-2008-1040826]
</p>
</li>
<li>
<p class="mim-text-font">
Brais, B., Xie, Y.-G., Sanson, M., Morgan, K., Weissenbach, J., Korczyn, A. D., Blumen, S. C., Fardeau, M., Tome, F. M. S., Bouchard, J.-P., Rouleau, G. A.
<strong>The oculopharyngeal muscular dystrophy locus maps to the region of the cardiac alpha and beta myosin heavy chain genes on chromosome 14q11.2-q13.</strong>
Hum. Molec. Genet. 4: 429-434, 1995.
[PubMed: 7795598]
[Full Text: https://doi.org/10.1093/hmg/4.3.429]
</p>
</li>
<li>
<p class="mim-text-font">
Bray, G. M., Kaarsoo, M., Ross, R. T.
<strong>Ocular myopathy with dysphagia.</strong>
Neurology 15: 678-684, 1965.
[PubMed: 14306330]
[Full Text: https://doi.org/10.1212/wnl.15.7.678]
</p>
</li>
<li>
<p class="mim-text-font">
Calado, A., Tome, F. M. S., Brais, B., Rouleau, G. A., Kuhn, U., Wahle, E., Carmo-Fonseca, M.
<strong>Nuclear inclusions in oculopharyngeal muscular dystrophy consist of poly(A) binding protein 2 aggregates which sequester poly(A) RNA.</strong>
Hum. Molec. Genet. 9: 2321-2328, 2000.
[PubMed: 11001936]
[Full Text: https://doi.org/10.1093/oxfordjournals.hmg.a018924]
</p>
</li>
<li>
<p class="mim-text-font">
Chartier, A., Raz, V., Sterrenburg, E., Verrips, C. T., van der Maarel, S. M., Simonelig, M.
<strong>Prevention of oculopharyngeal muscular dystrophy by muscular expression of Llama single-chain intrabodies in vivo.</strong>
Hum. Molec. Genet. 18: 1849-1859, 2009.
[PubMed: 19258344]
[Full Text: https://doi.org/10.1093/hmg/ddp101]
</p>
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<li>
<p class="mim-text-font">
Davies, J. E., Sarkar, S., Rubinsztein, D. C.
<strong>Trehalose reduces aggregate formation and delays pathology in a transgenic mouse model of oculopharyngeal muscular dystrophy.</strong>
Hum. Molec. Genet. 15: 23-31, 2006.
[PubMed: 16311254]
[Full Text: https://doi.org/10.1093/hmg/ddi422]
</p>
</li>
<li>
<p class="mim-text-font">
De Braekeleer, M.
<strong>Hereditary disorders in Saguenay-Lac-St-Jean (Quebec, Canada).</strong>
Hum. Hered. 41: 141-146, 1991.
[PubMed: 1937486]
[Full Text: https://doi.org/10.1159/000153992]
</p>
</li>
<li>
<p class="mim-text-font">
Fukuhara, N., Kumamoto, T., Tsubaki, T., Mayuzumi, T., Nitta, H.
<strong>Oculopharyngeal muscular dystrophy and distal myopathy.</strong>
Acta Neurol. Scand. 65: 458-467, 1982.
[PubMed: 7113658]
[Full Text: https://doi.org/10.1111/j.1600-0404.1982.tb03103.x]
</p>
</li>
<li>
<p class="mim-text-font">
Goh, K. J., Wong, K. T., Nishino, I., Minami, N., Nonaka, I.
<strong>Oculopharyngeal muscular dystrophy with PABPN1 mutation in a Chinese Malaysian woman.</strong>
Neuromusc. Disord. 15: 262-264, 2005.
[PubMed: 15725589]
[Full Text: https://doi.org/10.1016/j.nmd.2004.10.016]
</p>
</li>
<li>
<p class="mim-text-font">
Hayes, R., London, W., Seidman, J., Embree, L.
<strong>Oculopharyngeal muscular dystrophy. (Letter)</strong>
New Eng. J. Med. 268: 163, 1963.
[PubMed: 13963574]
[Full Text: https://doi.org/10.1056/NEJM196301172680319]
</p>
</li>
<li>
<p class="mim-text-font">
Hino, H., Araki, K., Uyama, E., Takeya, M., Araki, M., Yoshinobu, K., Miike, K., Kawazoe, Y., Maeda, Y., Uchino, M., Yamamura, K.
<strong>Myopathy phenotype in transgenic mice expressing mutated PABPN1 as a model of oculopharyngeal muscular dystrophy.</strong>
Hum. Molec. Genet. 13: 181-190, 2004.
[PubMed: 14645203]
[Full Text: https://doi.org/10.1093/hmg/ddh017]
</p>
</li>
<li>
<p class="mim-text-font">
Kiloh, L. G., Nevin, S.
<strong>Progressive dystrophy of the external ocular muscles (ocular myopathy).</strong>
Brain 74: 115-143, 1951.
[PubMed: 14858744]
[Full Text: https://doi.org/10.1093/brain/74.2.115]
</p>
</li>
<li>
<p class="mim-text-font">
Knoblauch, A., Koppel, M.
<strong>Die okulopharyngeale Muskeldystrophie.</strong>
Schweiz. Med. Wschr. 114: 557-561, 1984.
[PubMed: 6474119]
</p>
</li>
<li>
<p class="mim-text-font">
Morgan-Hughes, J. A., Mair, W. G. P.
<strong>Atypical muscle mitochondria in oculoskeletal myopathy.</strong>
Brain 96: 215-224, 1973.
[PubMed: 4268449]
[Full Text: https://doi.org/10.1093/brain/96.2.215]
</p>
</li>
<li>
<p class="mim-text-font">
Murphy, S. F., Drachman, D. B.
<strong>The oculopharyngeal syndrome.</strong>
JAMA 203: 1003-1008, 1968.
[PubMed: 5694357]
</p>
</li>
<li>
<p class="mim-text-font">
Pauzner, R., Blatt, I., Mouallem, M., Ben-David, E., Farfel, Z., Sadeh, M.
<strong>Mitochondrial abnormalities in oculopharyngeal muscular dystrophy.</strong>
Muscle Nerve 14: 947-952, 1991.
[PubMed: 1944407]
[Full Text: https://doi.org/10.1002/mus.880141004]
</p>
</li>
<li>
<p class="mim-text-font">
Robinson, D. O., Wills, A. J., Hammans, S. R., Read, S. P., Sillibourne, J.
<strong>Oculopharyngeal muscular dystrophy: a point mutation which mimics the effect of the PABPN1 gene triplet repeat expansion mutation.</strong>
J. Med. Genet. 43: e23, 2006. Note: Electronic Article.
[PubMed: 16648376]
[Full Text: https://doi.org/10.1136/jmg.2005.037598]
</p>
</li>
<li>
<p class="mim-text-font">
Rodriguez, M., Camejo, C., Bertoni, B., Braida, C., Rodriguez, M. M., Brais, B., Medici, M., Roche, L.
<strong>(GCG)11 founder mutation in the PABPN1 gene of OPMD Uruguayan families.</strong>
Neuromusc. Disord. 15: 185-190, 2005.
[PubMed: 15694141]
[Full Text: https://doi.org/10.1016/j.nmd.2004.10.012]
</p>
</li>
<li>
<p class="mim-text-font">
Schmitt, H. P., Krause, K. H.
<strong>An autopsy study of a familial oculopharyngeal muscular dystrophy (OPMD) with distal spread and neurogenic involvement.</strong>
Muscle Nerve 4: 296-305, 1981.
[PubMed: 7254232]
[Full Text: https://doi.org/10.1002/mus.880040406]
</p>
</li>
<li>
<p class="mim-text-font">
Schotland, D. L., Rowland, L. P.
<strong>Muscular dystrophy. Features ocular myopathy, distal myopathy, and myotonic dystrophy.</strong>
Arch. Neurol. 10: 433-445, 1964.
[PubMed: 14120634]
[Full Text: https://doi.org/10.1001/archneur.1964.00460170003001]
</p>
</li>
<li>
<p class="mim-text-font">
Scrimgeour, E. M., Mastaglia, F. L.
<strong>Oculopharyngeal and distal myopathy.</strong>
Am. J. Med. Genet. 17: 763-771, 1984.
[PubMed: 6720743]
[Full Text: https://doi.org/10.1002/ajmg.1320170407]
</p>
</li>
<li>
<p class="mim-text-font">
Taylor, E. W.
<strong>Progressive vagus-glossopharyngeal paralysis with ptosis: contribution to group of family diseases.</strong>
J. Nerv. Ment. Dis. 42: 129-139, 1915.
</p>
</li>
<li>
<p class="mim-text-font">
Teasdall, R. D., Schuster, M. M., Walsh, F. B.
<strong>Sphincter involvement in ocular myopathy.</strong>
Arch. Neurol. 10: 446-448, 1964.
[PubMed: 14120635]
[Full Text: https://doi.org/10.1001/archneur.1964.00460170016002]
</p>
</li>
<li>
<p class="mim-text-font">
Teh, B. T., Sullivan, A.-A., Farnebo, F., Zander, C., Li, F. Y., Strachan, N., Schalling, M., Larsson, C., Sandstrom, P.
<strong>Oculopharyngeal muscular dystrophy (OPMD) -- report and genetic studies of an Australian kindred.</strong>
Clin. Genet. 51: 52-55, 1997.
[PubMed: 9084936]
[Full Text: https://doi.org/10.1111/j.1399-0004.1997.tb02415.x]
</p>
</li>
<li>
<p class="mim-text-font">
Tome, F. M. S., Fardeau, M.
<strong>Nuclear inclusions in oculopharyngeal dystrophy.</strong>
Acta Neuropath. 49: 85-87, 1980.
[PubMed: 6243839]
[Full Text: https://doi.org/10.1007/BF00692226]
</p>
</li>
<li>
<p class="mim-text-font">
Trollet, C., Anvar, S. Y., Vanema, A., Hargreaves, I. P., Foster, K., Vignaud, A., Ferry, A., Negroni, E., Hourde, C., Baraibar, M. A., 't Hoen, P. A. C., Davies, J. E., Rubinsztein, D. C., Heales, S. J., Mouly, V., van der Maarel, S. M., Butler-Browne, G., Raz V., Dickson, G.
<strong>Molecular and phenotypic characterization of a mouse model of oculopharyngeal muscular dystrophy reveals severe muscular atrophy restricted to fast glycolytic fibres.</strong>
Hum. Molec. Genet. 19: 2191-2207, 2010.
[PubMed: 20207626]
[Full Text: https://doi.org/10.1093/hmg/ddq098]
</p>
</li>
<li>
<p class="mim-text-font">
Uyama, E., Nohira, O., Chateau, D., Tokunaga, M., Uchino, M., Okabe, T., Ando, M., Tome, F. M. S.
<strong>Oculopharyngeal muscular dystrophy in two unrelated Japanese families.</strong>
Neurology 46: 773-778, 1996.
[PubMed: 8618681]
[Full Text: https://doi.org/10.1212/wnl.46.3.773]
</p>
</li>
<li>
<p class="mim-text-font">
Victor, M., Hayes, R., Adams, R. D.
<strong>Oculopharyngeal muscular dystrophy. A familial disease of late life characterized by dysphagia and progressive ptosis of the eyelids.</strong>
New Eng. J. Med. 267: 1267-1272, 1962.
[PubMed: 13997067]
[Full Text: https://doi.org/10.1056/NEJM196212202672501]
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