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<meta name="keywords" content="C4748327, disease or syndrome, lama2, laminin subunit alpha 2-related late-onset muscular dystrophy, laminin subunit alpha 2-related lgmd r23, laminin subunit alpha 2-related limb-girdle muscular dystrophy r23, lgmd type r23, lgmdr23, muscular dystrophy, limb-girdle, autosomal recessive 23, autosomal dominant, autosomal recessive, birth defects, chromosomal disease, chromosome, clinical features, clinical findings, clinical genetics, clinical recommendations, clinvar, congenital chromosomal disease, consumer genetic resources, cytogenetic location, disease characteristics, disease definitions, disease descriptions, disease ontology, disease synonyms, disease vocabulary, dysmorphology, entrez, familial disease, gene, gene-disease relationship, genereviews, genetic disease, genetic disorder, genetic terminology, genetic testing registry, genetics home reference, genomic disease, gtr, hereditary disease, heritable disease, hpo, human phenotype ontology, inherited disease, management guidelines, maternal inheritance, medgen, medical genetics, medical subject headings, mesh, mitochondrial inheritance, mode of inheritance, national center for biotechnology information, national institutes of health, national library of medicine, ncbi, nih, nlm, omim, ordo, orphanet, paternal inheritance, phenome, position statements, professional practice guidelines, rare disease, reference sequence, refseq, snomed ct, syndrome, undiagnosed diseases, x-linked recessive" /><meta name="description" content="The clinical manifestations of LAMA2 muscular dystrophy (LAMA2-MD) comprise a continuous spectrum ranging from severe congenital muscular dystrophy type 1A (MDC1A) to milder late-onset LAMA2-MD. MDC1A is typically characterized by neonatal profound hypotonia, poor spontaneous movements, and respiratory failure. Failure to thrive, gastroesophageal reflux, aspiration, and recurrent chest infections necessitating frequent hospitalizations are common. As disease progresses, facial muscle weakness, temporomandibular joint contractures, and macroglossia may further impair feeding and can affect speech. In late-onset LAMA2-MD onset of manifestations range from early childhood to adulthood. Affected individuals may show muscle hypertrophy and develop a rigid spine syndrome with joint contractures, usually most prominent in the elbows. Progressive respiratory insufficiency, scoliosis, and cardiomyopathy can occur." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Muscular dystrophy, limb-girdle, autosomal recessive 23 (Concept Id: C4748327)
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<!--
UID=1648462
ConceptID=C4748327
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Muscular dystrophy, limb-girdle, autosomal recessive 23<span class="h1sub">(LGMDR23)</span></div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1648462</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information."><span class="highlight" style="background-color:">C4748327</span></a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>LGMDR23; MUSCULAR DYSTROPHY, LIMB-GIRDLE, AUTOSOMAL RECESSIVE 23</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td><a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#target-gene-loc">Gene (location):<img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a><div class="display-none" id="target-gene-loc">
Gene(s) directly associated with<br />
this condition or phenotype.</div></td>
<td><a target="_blank" title="LAMA2 - ID: 3908 - NCBI Gene" href="/gene/3908" class="medgenPMinfo">LAMA2</a> (6q22.33)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>Monarch Initiative:</td>
<td><a href="https://monarchinitiative.org/disease/MONDO:0029136" target="_blank">MONDO:0029136</a></td></tr>
<tr><td>OMIM<span class="superscript">®</span>:</td>
<td><a href="https://omim.org/entry/618138" target="_blank">618138</a></td></tr>
<tr><td>Orphanet:</td>
<td><a target="_blank" title="Orphanet: The portal for rare diseases and orphan drugs" href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&amp;Expert=565837">ORPHA565837</a></td></tr></tbody></table></div><div class="rprt-body jig-ncbiinpagenav" data-jigconfig="smoothScroll: false, gotoTopLink: true, gotoTopLinkText: '', gotoTopLinkAttrs: {'title': 'Go to the top of the page'},allHeadingLevels: ['h1'], topOfPageTOC: true, tocId: 'my-toc'"><div id="rprt-tabs-1" class="rprt-tab"><div id="tb-termsProp-1"><div class="leftCol mgCol"><div>
<div class="portlet mgSection" id="ID_101">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Disease_characteristics">Disease characteristics</h1><a sid="101" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="excerpt">Excerpted from the <i>GeneReview: </i><a href="/books/NBK97333" target="_blank">LAMA2 Muscular Dystrophy</a></div><div>The clinical manifestations of LAMA2 muscular dystrophy (LAMA2-MD) comprise a continuous spectrum ranging from severe congenital muscular dystrophy type 1A (MDC1A) to milder late-onset LAMA2-MD. MDC1A is typically characterized by neonatal profound hypotonia, poor spontaneous movements, and respiratory failure. Failure to thrive, gastroesophageal reflux, aspiration, and recurrent chest infections necessitating frequent hospitalizations are common. As disease progresses, facial muscle weakness, temporomandibular joint contractures, and macroglossia may further impair feeding and can affect speech. In late-onset LAMA2-MD onset of manifestations range from early childhood to adulthood. Affected individuals may show muscle hypertrophy and develop a rigid spine syndrome with joint contractures, usually most prominent in the elbows. Progressive respiratory insufficiency, scoliosis, and cardiomyopathy can occur. [from <a title="GeneReviews" href="https://www.ncbi.nlm.nih.gov/books/NBK1116" class="defSource" target="_blank">GeneReviews</a>]</div><div class="spaceAbove"><strong>Full text of <i>GeneReview</i> (by section):</strong><br /><a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Summary" target="NBK97333">Summary</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.GeneReview_Scope" target="NBK97333">GeneReview Scope</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Diagnosis" target="NBK97333">Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Clinical_Characteristics" target="NBK97333">Clinical Characteristics</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Genetically_Related_Allelic_Dis" target="NBK97333">Genetically Related (Allelic) Disorders</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Differential_Diagnosis" target="NBK97333">Differential Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Management" target="NBK97333">Management</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Genetic_Counseling" target="NBK97333">Genetic Counseling</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Resources" target="NBK97333">Resources</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Molecular_Genetics" target="NBK97333">Molecular Genetics</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.References" target="NBK97333">References</a>  |  <a class="medgenPMinfo" href="/books/NBK97333#mdef-cmd.Chapter_Notes" target="NBK97333">Chapter Notes</a></div><div class="spaceAbove"><strong>Authors:</strong><br />
Jorge Oliveira  |  João Parente Freixo  |  Manuela Santos<i>, et. al.</i>   <a href="/books/NBK97333" target="NBK97333" title="NCBI Bookshelf: LAMA2 Muscular Dystrophy">view full author information</a></div></div>
</div>
<div class="portlet mgSection" id="ID_117">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Additional_description">Additional description</h1><a sid="117" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="mgSection"><strong>From OMIM</strong><br />Autosomal recessive limb-girdle muscular dystrophy-23 is characterized by slowly progressive proximal muscle weakness primarily affecting the lower limbs and resulting in gait difficulties. Age at onset generally ranges from childhood to mid-adulthood. Additional features include white matter abnormalities on brain imaging, increased serum creatine kinase, and dystrophic features, with partial LAMA2 deficiency on muscle biopsy. Some patients may have additional neurologic features, including executive deficits, seizures, and peripheral neuropathy. Patients remain ambulatory well into adulthood (summary by Gavassini et al., 2011 and Chan et al., 2014).&#13;
For a general phenotypic description and a discussion of genetic heterogeneity of autosomal recessive limb-girdle muscular dystrophy, see LGMDR1 (253600).  <a target="_blank" href="http://www.omim.org/entry/618138">http://www.omim.org/entry/618138</a></div></div>
</div>
<div class="portlet mgSection" id="ID_102">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Clinical_features">Clinical features</h1><a sid="102" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat"><strong>From HPO</strong><br />
<div class="divPopper rprt" id="clin_20693"><div><strong>Seizure</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>20693</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0036572</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/20693">Feature record</a> | <a href="/medgen?term=%22Seizure%22%5BClinical%20Features%5D%20OR%2020693%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_66667"><div><strong>Waddling gait</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>66667</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0231712</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Weakness of the hip girdle and upper thigh muscles, for instance in myopathies, leads to an instability of the pelvis on standing and walking. If the muscles extending the hip joint are affected, the posture in that joint becomes flexed and lumbar lordosis increases. The patients usually have difficulties standing up from a sitting position. Due to weakness in the gluteus medius muscle, the hip on the side of the swinging leg drops with each step (referred to as Trendelenburg sign). The gait appears waddling. The patients frequently attempt to counteract the dropping of the hip on the swinging side by bending the trunk towards the side which is in the stance phase (in the German language literature this is referred to as Duchenne sign). Similar gait patterns can be caused by orthopedic conditions when the origin and the insertion site of the gluteus medius muscle are closer to each other than normal, for instance due to a posttraumatic elevation of the trochanter or pseudarthrosis of the femoral neck.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/66667">Feature record</a> | <a href="/medgen?term=%22Waddling%20gait%22%5BClinical%20Features%5D%20OR%2066667%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_115943"><div><strong>Areflexia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>115943</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0234146</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Absence of neurologic reflexes such as the knee-jerk reaction.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/115943">Feature record</a> | <a href="/medgen?term=%22Areflexia%22%5BClinical%20Features%5D%20OR%20115943%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_66034"><div><strong>Delayed ability to walk</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>66034</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0241726</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A failure to achieve the ability to walk at an appropriate developmental stage. Most children learn to walk in a series of stages, and learn to walk short distances independently between 12 and 15 months.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/66034">Feature record</a> | <a href="/medgen?term=%22Delayed%20ability%20to%20walk%22%5BClinical%20Features%5D%20OR%2066034%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_181756"><div><strong>Abnormal cerebral white matter morphology</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>181756</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0948163</a></dd><dt><span class="dotprefix"></span></dt><dd>Pathologic Function</dd></dl></div></div></div>
<div class="spaceAbove">An abnormality of the cerebral white matter.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/181756">Feature record</a> | <a href="/medgen?term=%22Abnormal%20cerebral%20white%20matter%20morphology%22%5BClinical%20Features%5D%20OR%20181756%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_207266"><div><strong>Sensorimotor neuropathy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>207266</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1112256</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/207266">Feature record</a> | <a href="/medgen?term=%22Sensorimotor%20neuropathy%22%5BClinical%20Features%5D%20OR%20207266%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_332464"><div><strong>Axonal degeneration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>332464</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1837496</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/332464">Feature record</a> | <a href="/medgen?term=%22Axonal%20degeneration%22%5BClinical%20Features%5D%20OR%20332464%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_381392"><div><strong>Motor delay</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>381392</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1854301</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A type of Developmental delay characterized by a delay in acquiring motor skills.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/381392">Feature record</a> | <a href="/medgen?term=%22Motor%20delay%22%5BClinical%20Features%5D%20OR%20381392%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_347509"><div><strong>Decreased nerve conduction velocity</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>347509</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1857640</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A reduction in the speed at which electrical signals propagate along the axon of a neuron.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/347509">Feature record</a> | <a href="/medgen?term=%22Decreased%20nerve%20conduction%20velocity%22%5BClinical%20Features%5D%20OR%20347509%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_44042"><div><strong>Kyphosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>44042</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0022821</a></dd><dt><span class="dotprefix"></span></dt><dd>Anatomical Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Exaggerated anterior convexity of the thoracic vertebral column.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/44042">Feature record</a> | <a href="/medgen?term=%22Kyphosis%22%5BClinical%20Features%5D%20OR%2044042%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_65865"><div><strong>Gowers sign</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>65865</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0234182</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A phenomenon whereby patients are not able to stand up without the use of the hands owing to weakness of the proximal muscles of the lower limbs.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/65865">Feature record</a> | <a href="/medgen?term=%22Gowers%20sign%22%5BClinical%20Features%5D%20OR%2065865%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_68676"><div><strong>Difficulty climbing stairs</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>68676</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0239067</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Reduced ability to climb stairs.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/68676">Feature record</a> | <a href="/medgen?term=%22Difficulty%20climbing%20stairs%22%5BClinical%20Features%5D%20OR%2068676%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_98367"><div><strong>Elbow flexion contracture</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>98367</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0409338</a></dd><dt><span class="dotprefix"></span></dt><dd>Acquired Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">An elbow contracture that limits the ability of the elbow joint to be extended (straightened), meaning that the elbow is fixed in an flexed (bent) position.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen?term=%22Elbow%20flexion%20contracture%22%5BClinical%20Features%5D%20OR%2098367%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_108251"><div><strong>Difficulty running</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>108251</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0560346</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Reduced ability to run.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/108251">Feature record</a> | <a href="/medgen?term=%22Difficulty%20running%22%5BClinical%20Features%5D%20OR%20108251%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_335868"><div><strong>Calf muscle hypertrophy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>335868</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1843057</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Muscle hypertrophy affecting the calf muscles.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/335868">Feature record</a> | <a href="/medgen?term=%22Calf%20muscle%20hypertrophy%22%5BClinical%20Features%5D%20OR%20335868%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_334801"><div><strong>Neck flexor weakness</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>334801</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1843637</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Weakness of the muscles involved in neck flexion (sternocleidomastoid, longus capitus, longus colli, and scalenus anterior).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/334801">Feature record</a> | <a href="/medgen?term=%22Neck%20flexor%20weakness%22%5BClinical%20Features%5D%20OR%20334801%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_336019"><div><strong>Increased variability in muscle fiber diameter</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>336019</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1843700</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An abnormally high degree of muscle fiber size variation. This phenotypic feature can be observed upon muscle biopsy.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/336019">Feature record</a> | <a href="/medgen?term=%22Increased%20variability%20in%20muscle%20fiber%20diameter%22%5BClinical%20Features%5D%20OR%20336019%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_383715"><div><strong>Exercise-induced muscle cramps</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>383715</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1855578</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Sudden and involuntary contractions of one or more muscles brought on by physical exertion.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/383715">Feature record</a> | <a href="/medgen?term=%22Exercise-induced%20muscle%20cramps%22%5BClinical%20Features%5D%20OR%20383715%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_356423"><div><strong>Proximal muscle weakness in lower limbs</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>356423</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1866010</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A lack of strength of the proximal muscles of the legs.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/356423">Feature record</a> | <a href="/medgen?term=%22Proximal%20muscle%20weakness%20in%20lower%20limbs%22%5BClinical%20Features%5D%20OR%20356423%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_356424"><div><strong>Proximal muscle weakness in upper limbs</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>356424</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1866012</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A lack of strength of the proximal muscles of the arms.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/356424">Feature record</a> | <a href="/medgen?term=%22Proximal%20muscle%20weakness%20in%20upper%20limbs%22%5BClinical%20Features%5D%20OR%20356424%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1623054"><div><strong>Internally nucleated skeletal muscle fibers</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1623054</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4531255</a></dd><dt><span class="dotprefix"></span></dt><dd>Anatomical Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">An abnormally increased proportion of nuclei of sarcomeres with an internal localization. Individual muscle fibers are syncytia, formed by embryonic fusion of many myoblasts or later, myosatellite cells. Each muscle fiber contains many nuclei, peripherally positioned immediately adjacent to the sarcolemmal membrane. In healthy muscle only 3-5% of fibers contain nuclei that are located internally, within the cell, but many disease processes lead to internal nuclei.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1623054">Feature record</a> | <a href="/medgen?term=%22Internally%20nucleated%20skeletal%20muscle%20fibers%22%5BClinical%20Features%5D%20OR%201623054%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1864395"><div><strong>Elevated muscle fiber laminin alpha 5 expression</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1864395</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5937404</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A decreased amount of laminin alpha-5 in muscle tissue. This feature can be shown by immunohistochemistry or Western blotting of muscle tissue. Laminin subunit alpha-5 is a protein encoded by the LAMA5 gene.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1864395">Feature record</a> | <a href="/medgen?term=%22Elevated%20muscle%20fiber%20laminin%20alpha%205%20expression%22%5BClinical%20Features%5D%20OR%201864395%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_69128"><div><strong>Elevated circulating creatine kinase concentration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>69128</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0241005</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An elevation of the level of the enzyme creatine kinase (also known as creatine phosphokinase (CK; EC 2.7.3.2) in the blood. CK levels can be elevated in a number of clinical disorders such as myocardial infarction, rhabdomyolysis, and muscular dystrophy.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/69128">Feature record</a> | <a href="/medgen?term=%22Elevated%20circulating%20creatine%20kinase%20concentration%22%5BClinical%20Features%5D%20OR%2069128%5Buid%5D">Search on this feature</a></div></div><div class="TreeLite" data-jigconfig="closed: 1"><div class="concept-def"><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().openAll(); return false;">Show all</a><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().closeAll(); return false;">Hide all</a></div><ul><li><span class="TLline">Abnormality of metabolism/homeostasis</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_69128" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Elevated circulating creatine kinase concentration</a></span></li></ul></li><li><span class="TLline">Abnormality of the musculoskeletal system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_335868" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Calf muscle hypertrophy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_68676" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Difficulty climbing stairs</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_108251" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Difficulty running</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_98367" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Elbow flexion contracture</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1864395" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Elevated muscle fiber laminin alpha 5 expression</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_383715" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Exercise-induced muscle cramps</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_65865" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Gowers sign</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_336019" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Increased variability in muscle fiber diameter</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1623054" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Internally nucleated skeletal muscle fibers</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_44042" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Kyphosis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_334801" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Neck flexor weakness</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_356423" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Proximal muscle weakness in lower limbs</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_356424" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Proximal muscle weakness in upper limbs</a></span></li></ul></li><li><span class="TLline">Abnormality of the nervous system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_181756" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Abnormal cerebral white matter morphology</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_115943" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Areflexia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_332464" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Axonal degeneration</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_347509" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Decreased nerve conduction velocity</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_66034" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Delayed ability to walk</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_381392" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Motor delay</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_20693" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Seizure</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_207266" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Sensorimotor neuropathy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_66667" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Waddling gait</a></span></li></ul></li></ul></div></div>
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<div class="portlet mgSection" id="ID_118">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Term_Hierarchy">Term Hierarchy</h1><a sid="118" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln HierarchyGTR"><div class="jig-ncbitabs"><ul><li><a href="#tabGTR">GTR</a></li><li><a href="#tabMGEN">MeSH</a></li></ul><div id="tabGTR"><div class="search_result"><div class="rprts"><div class="chiclet_legend"><span class="chiclet_list" style="position:static;"><span title="Clinical test" class="chiclet Ccolor round">C</span><span>Clinical test,  </span><span title="Research test" class="chiclet Rcolor round">R</span><span>Research test,  </span><span title="OMIM" class="chiclet Ocolor ">O</span><span>OMIM,  </span><span title="GeneReview" class="chiclet Gcolor">G</span><span><em>GeneReviews</em>,  </span><span title="ClinVar" class="chiclet Vcolor">V</span><span>ClinVar  </span></span></div><div id="hierarchy" class="margin_t1"><div class="ds_tree"><ul><li class="matched_ds"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C4748327[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=1648462">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=1648462" target="_blank" href="/omim/156225">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK97333/" ref="ncbi_uid=1648462">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=1648462" ref="ncbi_uid=1648462">V</a></span></span><span class="TLline">Muscular dystrophy, limb-girdle, autosomal recessive 23</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/867443" ref="tree=MeSH" title="MedGen record for Phenotypic abnormality">Phenotypic abnormality</a></span><ul><li><span class="TLline"><a href="/medgen/536898" ref="tree=MeSH" title="MedGen record for Abnormality of limbs">Abnormality of limbs</a></span><ul><li><span class="TLline"><a href="/medgen/870150" ref="tree=MeSH" title="MedGen record for Abnormality of the musculature of the limbs">Abnormality of the musculature of the limbs</a></span><ul><li><span class="TLline"><a href="/medgen/330868" ref="tree=MeSH" title="MedGen record for Limb-girdle muscle atrophy">Limb-girdle muscle atrophy</a></span><ul><li><span class="TLline"><a href="/medgen/151940" ref="tree=MeSH" title="MedGen record for Limb-girdle muscular dystrophy">Limb-girdle muscular dystrophy</a></span><ul><li><span class="TLline"><a href="/medgen/419194" ref="tree=MeSH" title="MedGen record for Autosomal recessive limb-girdle muscular dystrophy">Autosomal recessive limb-girdle muscular dystrophy</a></span><ul><li><span class="matched_ds">Muscular dystrophy, limb-girdle, autosomal recessive 23</span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></div></div></div></div>
</div>
<div class="display-none help-popup" id="guidelinesHelpPM">These guidelines are articles in PubMed that match specific search criteria developed by MedGen to capture the most relevant practice guidelines. This list may not be comprehensive and may include broader topics as well. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div><div class="display-none help-popup" id="guidelinesHelpCurated">These guidelines are manually curated by the MedGen team
to supplement articles available in PubMed. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div>
<div class="portlet mgSection" id="ID_103">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_clinical_studies">Recent clinical studies</h1><a sid="103" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">Etiology</h3>
<div class="nl"><a target="_blank" href="/pubmed/37852290">Single-centre experience with autosomal recessive limb-girdle muscular dystrophy: case series and literature review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lorenzoni PJ,
Kay CSK,
Ducci RD,
Fustes OJH,
Rodrigues PRDVP,
Hrysay NMC,
Arndt RC,
Werneck LC,
Scola RH</span><br />
<span class="medgenPMjournal">Arq Neuropsiquiatr</span>
2023 Oct;81(10):922-933.
Epub 2023 Oct 18
doi: 10.1055/s-0043-1772833.
<span class="bold">PMID: </span><a href="/pubmed/37852290" target="_blank">37852290</a><a href="/pmc/articles/PMC10631857" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34515763">Clinical and genetic spectrum of a large cohort of patients with δ-sarcoglycan muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Alonso-Pérez J,
González-Quereda L,
Bruno C,
Panicucci C,
Alavi A,
Nafissi S,
Nilipour Y,
Zanoteli E,
Isihi LMA,
Melegh B,
Hadzsiev K,
Muelas N,
Vílchez JJ,
Dourado ME,
Kadem N,
Kutluk G,
Umair M,
Younus M,
Pegorano E,
Bello L,
Crawford TO,
Suárez-Calvet X,
Töpf A,
Guglieri M,
Marini-Bettolo C,
Gallano P,
Straub V,
Díaz-Manera J</span><br />
<span class="medgenPMjournal">Brain</span>
2022 Apr 18;145(2):596-606.
doi: 10.1093/brain/awab301.
<span class="bold">PMID: </span><a href="/pubmed/34515763" target="_blank">34515763</a><a href="/pmc/articles/PMC9014751" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34281576">Natural history and genetic study of LAMA2-related muscular dystrophy in a large Chinese cohort.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tan D,
Ge L,
Fan Y,
Chang X,
Wang S,
Wei C,
Ding J,
Liu A,
Wang S,
Li X,
Gao K,
Yang H,
Que C,
Huang Z,
Li C,
Zhu Y,
Mao B,
Jin B,
Hua Y,
Zhang X,
Zhang B,
Zhu W,
Zhang C,
Wang Y,
Yuan Y,
Jiang Y,
Rutkowski A,
Bönnemann CG,
Wu X,
Xiong H</span><br />
<span class="medgenPMjournal">Orphanet J Rare Dis</span>
2021 Jul 19;16(1):319.
doi: 10.1186/s13023-021-01950-x.
<span class="bold">PMID: </span><a href="/pubmed/34281576" target="_blank">34281576</a><a href="/pmc/articles/PMC8287797" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25663498">LAMA2-related myopathy: Frequency among congenital and limb-girdle muscular dystrophies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Løkken N,
Born AP,
Duno M,
Vissing J</span><br />
<span class="medgenPMjournal">Muscle Nerve</span>
2015 Oct;52(4):547-53.
Epub 2015 Aug 13
doi: 10.1002/mus.24588.
<span class="bold">PMID: </span><a href="/pubmed/25663498" target="_blank">25663498</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24843229">Genetic basis of limb-girdle muscular dystrophies: the 2014 update.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Nigro V,
Savarese M</span><br />
<span class="medgenPMjournal">Acta Myol</span>
2014 May;33(1):1-12.
<span class="bold">PMID: </span><a href="/pubmed/24843229" target="_blank">24843229</a><a href="/pmc/articles/PMC4021627" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Muscular%20dystrophy%2C%20limb-girdle%2C%20autosomal%20recessive%2023%22%20AND%20Etiology%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (19)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/34515763">Clinical and genetic spectrum of a large cohort of patients with δ-sarcoglycan muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Alonso-Pérez J,
González-Quereda L,
Bruno C,
Panicucci C,
Alavi A,
Nafissi S,
Nilipour Y,
Zanoteli E,
Isihi LMA,
Melegh B,
Hadzsiev K,
Muelas N,
Vílchez JJ,
Dourado ME,
Kadem N,
Kutluk G,
Umair M,
Younus M,
Pegorano E,
Bello L,
Crawford TO,
Suárez-Calvet X,
Töpf A,
Guglieri M,
Marini-Bettolo C,
Gallano P,
Straub V,
Díaz-Manera J</span><br />
<span class="medgenPMjournal">Brain</span>
2022 Apr 18;145(2):596-606.
doi: 10.1093/brain/awab301.
<span class="bold">PMID: </span><a href="/pubmed/34515763" target="_blank">34515763</a><a href="/pmc/articles/PMC9014751" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33899113">Compound heterozygous CAPN3 variants identified in a family with limb-girdle muscular dystrophy recessive 1.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zhang C,
Zheng X,
Lu D,
Xu L,
Che F,
Liu S</span><br />
<span class="medgenPMjournal">Mol Med Rep</span>
2021 Jun;23(6)
Epub 2021 Apr 26
doi: 10.3892/mmr.2021.12119.
<span class="bold">PMID: </span><a href="/pubmed/33899113" target="_blank">33899113</a><a href="/pmc/articles/PMC8097764" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25663498">LAMA2-related myopathy: Frequency among congenital and limb-girdle muscular dystrophies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Løkken N,
Born AP,
Duno M,
Vissing J</span><br />
<span class="medgenPMjournal">Muscle Nerve</span>
2015 Oct;52(4):547-53.
Epub 2015 Aug 13
doi: 10.1002/mus.24588.
<span class="bold">PMID: </span><a href="/pubmed/25663498" target="_blank">25663498</a></div>
<div class="nl"><a target="_blank" href="/pubmed/23252132">Diagnosing and managing muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Orrell RW</span><br />
<span class="medgenPMjournal">Practitioner</span>
2012 Sep;256(1754):21-4, 2-3.
<span class="bold">PMID: </span><a href="/pubmed/23252132" target="_blank">23252132</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15938568">Limb-girdle muscular dystrophies: heterogeneity of clinical phenotypes and pathogenetic mechanisms.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Angelini C</span><br />
<span class="medgenPMjournal">Acta Myol</span>
2004 Dec;23(3):130-6.
<span class="bold">PMID: </span><a href="/pubmed/15938568" target="_blank">15938568</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Muscular%20dystrophy%2C%20limb-girdle%2C%20autosomal%20recessive%2023%22%20AND%20Diagnosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (16)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/35527561">Progression to Loss of Ambulation Among Patients with Autosomal Recessive Limb-girdle Muscular Dystrophy: A Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Audhya IF,
Cheung A,
Szabo SM,
Flint E,
Weihl CC,
Gooch KL</span><br />
<span class="medgenPMjournal">J Neuromuscul Dis</span>
2022;9(4):477-492.
doi: 10.3233/JND-210771.
<span class="bold">PMID: </span><a href="/pubmed/35527561" target="_blank">35527561</a><a href="/pmc/articles/PMC9398075" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Muscular%20dystrophy%2C%20limb-girdle%2C%20autosomal%20recessive%2023%22%20AND%20Therapy%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (1)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/37962193">Patterns of Clinical Progression Among Patients With Autosomal Recessive Limb-Girdle Muscular Dystrophy: A Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cheung A,
Audhya IF,
Szabo SM,
Friesen M,
Weihl CC,
Gooch KL</span><br />
<span class="medgenPMjournal">J Clin Neuromuscul Dis</span>
2023 Dec 1;25(2):65-80.
doi: 10.1097/CND.0000000000000461.
<span class="bold">PMID: </span><a href="/pubmed/37962193" target="_blank">37962193</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34515763">Clinical and genetic spectrum of a large cohort of patients with δ-sarcoglycan muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Alonso-Pérez J,
González-Quereda L,
Bruno C,
Panicucci C,
Alavi A,
Nafissi S,
Nilipour Y,
Zanoteli E,
Isihi LMA,
Melegh B,
Hadzsiev K,
Muelas N,
Vílchez JJ,
Dourado ME,
Kadem N,
Kutluk G,
Umair M,
Younus M,
Pegorano E,
Bello L,
Crawford TO,
Suárez-Calvet X,
Töpf A,
Guglieri M,
Marini-Bettolo C,
Gallano P,
Straub V,
Díaz-Manera J</span><br />
<span class="medgenPMjournal">Brain</span>
2022 Apr 18;145(2):596-606.
doi: 10.1093/brain/awab301.
<span class="bold">PMID: </span><a href="/pubmed/34515763" target="_blank">34515763</a><a href="/pmc/articles/PMC9014751" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21816046">Cardiovascular magnetic resonance of cardiomyopathy in limb girdle muscular dystrophy 2B and 2I.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Rosales XQ,
Moser SJ,
Tran T,
McCarthy B,
Dunn N,
Habib P,
Simonetti OP,
Mendell JR,
Raman SV</span><br />
<span class="medgenPMjournal">J Cardiovasc Magn Reson</span>
2011 Aug 4;13(1):39.
doi: 10.1186/1532-429X-13-39.
<span class="bold">PMID: </span><a href="/pubmed/21816046" target="_blank">21816046</a><a href="/pmc/articles/PMC3170213" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15938568">Limb-girdle muscular dystrophies: heterogeneity of clinical phenotypes and pathogenetic mechanisms.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Angelini C</span><br />
<span class="medgenPMjournal">Acta Myol</span>
2004 Dec;23(3):130-6.
<span class="bold">PMID: </span><a href="/pubmed/15938568" target="_blank">15938568</a></div>
<div class="nl"><a target="_blank" href="/pubmed/12559529">Assessment of left ventricular systolic and diastolic functions in children with merosin-positive congenital muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ceviz N,
Alehan F,
Alehan D,
Ozme S,
Akçören Z,
Kale G,
Topaloglu H</span><br />
<span class="medgenPMjournal">Int J Cardiol</span>
2003 Feb;87(2-3):129-33; discussion 133-4.
doi: 10.1016/s0167-5273(02)00320-0.
<span class="bold">PMID: </span><a href="/pubmed/12559529" target="_blank">12559529</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Muscular%20dystrophy%2C%20limb-girdle%2C%20autosomal%20recessive%2023%22%20AND%20Prognosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (10)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/34515763">Clinical and genetic spectrum of a large cohort of patients with δ-sarcoglycan muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Alonso-Pérez J,
González-Quereda L,
Bruno C,
Panicucci C,
Alavi A,
Nafissi S,
Nilipour Y,
Zanoteli E,
Isihi LMA,
Melegh B,
Hadzsiev K,
Muelas N,
Vílchez JJ,
Dourado ME,
Kadem N,
Kutluk G,
Umair M,
Younus M,
Pegorano E,
Bello L,
Crawford TO,
Suárez-Calvet X,
Töpf A,
Guglieri M,
Marini-Bettolo C,
Gallano P,
Straub V,
Díaz-Manera J</span><br />
<span class="medgenPMjournal">Brain</span>
2022 Apr 18;145(2):596-606.
doi: 10.1093/brain/awab301.
<span class="bold">PMID: </span><a href="/pubmed/34515763" target="_blank">34515763</a><a href="/pmc/articles/PMC9014751" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34702656">Muscle magnetic resonance imaging in patients with LAMA2-related muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tan D,
Ge L,
Fan Y,
Wei C,
Yang H,
Liu A,
Xiao J,
Xiong H,
Zhu Y</span><br />
<span class="medgenPMjournal">Neuromuscul Disord</span>
2021 Nov;31(11):1144-1153.
Epub 2021 Sep 23
doi: 10.1016/j.nmd.2021.09.006.
<span class="bold">PMID: </span><a href="/pubmed/34702656" target="_blank">34702656</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21816046">Cardiovascular magnetic resonance of cardiomyopathy in limb girdle muscular dystrophy 2B and 2I.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Rosales XQ,
Moser SJ,
Tran T,
McCarthy B,
Dunn N,
Habib P,
Simonetti OP,
Mendell JR,
Raman SV</span><br />
<span class="medgenPMjournal">J Cardiovasc Magn Reson</span>
2011 Aug 4;13(1):39.
doi: 10.1186/1532-429X-13-39.
<span class="bold">PMID: </span><a href="/pubmed/21816046" target="_blank">21816046</a><a href="/pmc/articles/PMC3170213" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10800259">Spin-lock magnetic resonance imaging of muscle in patients with autosomal recessive limb girdle muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Franczak MB,
Ulmer JL,
Jaradeh S,
McDaniel JD,
Mark LP,
Prost RW</span><br />
<span class="medgenPMjournal">J Neuroimaging</span>
2000 Apr;10(2):73-7.
doi: 10.1111/jon200010273.
<span class="bold">PMID: </span><a href="/pubmed/10800259" target="_blank">10800259</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10433295">Magnetization transfer imaging of skeletal muscle in autosomal recessive limb girdle muscular dystrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">McDaniel JD,
Ulmer JL,
Prost RW,
Franczak MB,
Jaradeh S,
Hamilton CA,
Mark LP</span><br />
<span class="medgenPMjournal">J Comput Assist Tomogr</span>
1999 Jul-Aug;23(4):609-14.
doi: 10.1097/00004728-199907000-00023.
<span class="bold">PMID: </span><a href="/pubmed/10433295" target="_blank">10433295</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Muscular%20dystrophy%2C%20limb-girdle%2C%20autosomal%20recessive%2023%22%20AND%20Clinical%20prediction%20guides%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (9)</a></div></div>
</div>
<div class="portlet mgSection" id="ID_104">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_systematic_reviews">Recent systematic reviews</h1><a sid="104" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">
<div class="nl"><a target="_blank" href="/pubmed/37962193">Patterns of Clinical Progression Among Patients With Autosomal Recessive Limb-Girdle Muscular Dystrophy: A Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cheung A,
Audhya IF,
Szabo SM,
Friesen M,
Weihl CC,
Gooch KL</span><br />
<span class="medgenPMjournal">J Clin Neuromuscul Dis</span>
2023 Dec 1;25(2):65-80.
doi: 10.1097/CND.0000000000000461.
<span class="bold">PMID: </span><a href="/pubmed/37962193" target="_blank">37962193</a></div>
<div class="nl"><a target="_blank" href="/pubmed/35527561">Progression to Loss of Ambulation Among Patients with Autosomal Recessive Limb-girdle Muscular Dystrophy: A Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Audhya IF,
Cheung A,
Szabo SM,
Flint E,
Weihl CC,
Gooch KL</span><br />
<span class="medgenPMjournal">J Neuromuscul Dis</span>
2022;9(4):477-492.
doi: 10.3233/JND-210771.
<span class="bold">PMID: </span><a href="/pubmed/35527561" target="_blank">35527561</a><a href="/pmc/articles/PMC9398075" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Muscular%20dystrophy%2C%20limb-girdle%2C%20autosomal%20recessive%2023%22%20AND%20systematic%5Bsb%5D%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (2)</a></div></div>
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<h2 class="offscreen_noflow">Supplemental Content</h2>
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<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C4748327%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (19)</a></li>
<li><a href="/gtr/tests?term=C4748327%5bDISCUI%5d&amp;filter=method%3A2%5F18" target="_blank">Mutation scanning of select exons (1)</a></li>
<li><a href="/gtr/tests?term=C4748327%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (15)</a></li>
<li><a href="/gtr/tests?term=C4748327%5bDISCUI%5d&amp;filter=method%3A2%5F19" target="_blank">Targeted variant analysis (6)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C4748327%5bDISCUI%5d" target="_blank">See all (22)</a></total></li>
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<div class="portlet_content ln"><ul><li><a href="https://www.malacards.org/card/muscular_dystrophy_limb_girdle_autosomal_recessive_23" target="_blank">MalaCards</a></li><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&amp;query=Muscular%20dystrophy,%20limb-girdle,%20autosomal%20recessive%2023" target="_blank">MedlinePlus</a></li><li><a href="https://rarediseases.info.nih.gov/diseases/22270/disease" target="_blank">NCATS Office of Rare Diseases Research (GARD)</a></li></ul></div>
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