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<meta name="keywords" content="C1838230, adult spinal muscular atrophy, adult-onset spinal muscular atrophy, disease or syndrome, proximal spinal muscular atrophy type 4, sma 4, sma type 4, sma type iv, sma-iv, sma4, smn1, spinal muscular atrophy 4, spinal muscular atrophy of adults, spinal muscular atrophy type 4, spinal muscular atrophy, adult form, spinal muscular atrophy, proximal, adult, autosomal recessive, spinal muscular atrophy, type 4, spinal muscular atrophy, type iv, spinal muscular atrophy-4, 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="Spinal muscular atrophy (SMA) is characterized by muscle weakness and atrophy resulting from progressive degeneration and irreversible loss of the anterior horn cells in the spinal cord (i.e., lower motor neurons) and the brain stem nuclei. The onset of weakness ranges from before birth to adulthood. The weakness is symmetric, proximal greater than distal, and progressive. Before the genetic basis of SMA was understood, it was classified into clinical subtypes based on maximum motor function achieved; however, it is now apparent that the phenotype of SMN1-associated SMA spans a continuum without clear delineation of subtypes. With supportive care only, poor weight gain with growth failure, restrictive lung disease, scoliosis, and joint contractures are common complications; however, newly available targeted treatment options are changing the natural history of the disease." /><meta name="robots" content="index,nofollow,noarchive" />
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<!--
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||
UID=325364
|
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ConceptID=C1838230
|
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-->
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<!--imgCountBooks = 1--><div class="ncbi_carousel" data-ncbicarousel-config="imageWidth:'100px',numItemsVisible:2,toggler:false"><div class="nc_header"><span class="img_strip_title">Image</span></div><div class="nc_content"><div class="nc_item"><a class="figpopup"><img alt="Image from GeneReviews" src="/books/NBK1352/bin/sma-Image001.gif" src-large="/books/NBK1352/bin/sma-Image001.jpg" /></a><br /><a href="/books/NBK1352/figure/sma.F1/" title="GeneReviews" target="_blank">details</a></div></div></div><h1 class="medgenTitle"><div class="MedGenTitleText">Spinal muscular atrophy, type IV<span class="h1sub">(SMA4)</span></div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>325364</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) Click for more information.">C1838230</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>Adult spinal muscular atrophy; Adult-onset spinal muscular atrophy; SMA 4; Spinal muscular atrophy type 4; SPINAL MUSCULAR ATROPHY, ADULT FORM; SPINAL MUSCULAR ATROPHY, PROXIMAL, ADULT, AUTOSOMAL RECESSIVE</td></tr>
|
||
<tr><td>Modes of inheritance:</td>
|
||
<td>
|
||
<div class="divPopper rprt" id="moi_141025"><div><strong>Autosomal recessive inheritance</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>141025</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) Click for more information.">C0441748</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Intellectual Product</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Source: Orphanet</div>
|
||
<div class="spaceAbove">A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in individuals with two pathogenic alleles, either homozygotes (two copies of the same mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele).</div></div>
|
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<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#moi_141025" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Autosomal recessive inheritance</a><span> (Orphanet)</span></div></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="SMN1 - ID: 6606 - NCBI Gene" href="/gene/6606" class="medgenPMinfo">SMN1</a> (5q13.2)</td></tr>
|
||
<tr><td colspan="2" class="small"> </td></tr><tr><td>Monarch Initiative:</td>
|
||
<td><a href="https://monarchinitiative.org/disease/MONDO:0010056" target="_blank">MONDO:0010056</a></td></tr>
|
||
<tr><td>OMIM<span class="superscript">®</span>:</td>
|
||
<td><a href="https://omim.org/entry/271150" target="_blank">271150</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&Expert=83420">ORPHA83420</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/NBK1352" target="_blank">Spinal Muscular Atrophy</a></div><div>Spinal muscular atrophy (SMA) is characterized by muscle weakness and atrophy resulting from progressive degeneration and irreversible loss of the anterior horn cells in the spinal cord (i.e., lower motor neurons) and the brain stem nuclei. The onset of weakness ranges from before birth to adulthood. The weakness is symmetric, proximal greater than distal, and progressive. Before the genetic basis of SMA was understood, it was classified into clinical subtypes based on maximum motor function achieved; however, it is now apparent that the phenotype of SMN1-associated SMA spans a continuum without clear delineation of subtypes. With supportive care only, poor weight gain with growth failure, restrictive lung disease, scoliosis, and joint contractures are common complications; however, newly available targeted treatment options are changing the natural history of the disease. [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/NBK1352#sma.Summary" target="NBK1352">Summary</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.GeneReview_Scope" target="NBK1352">GeneReview Scope</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Diagnosis" target="NBK1352">Diagnosis</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Clinical_Characteristics" target="NBK1352">Clinical Characteristics</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Genetically_Related_Allelic_Disorder" target="NBK1352">Genetically Related (Allelic) Disorders</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Differential_Diagnosis" target="NBK1352">Differential Diagnosis</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Management" target="NBK1352">Management</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Genetic_Counseling" target="NBK1352">Genetic Counseling</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Resources" target="NBK1352">Resources</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Molecular_Genetics" target="NBK1352">Molecular Genetics</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.Chapter_Notes" target="NBK1352">Chapter Notes</a> | <a class="medgenPMinfo" href="/books/NBK1352#sma.References" target="NBK1352">References</a></div><div class="spaceAbove"><strong>Authors:</strong><br />
|
||
Thomas W Prior | Meganne E Leach | Erika L Finanger <a href="/books/NBK1352" target="NBK1352" title="NCBI Bookshelf: Spinal Muscular Atrophy">view full author information</a></div></div>
|
||
</div>
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||
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||
<div class="portlet mgSection" id="ID_117">
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||
<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 MedlinePlus Genetics</strong><br />Spinal muscular atrophy is a genetic disorder characterized by weakness and wasting (atrophy) in muscles used for movement (skeletal muscles). It is caused by a loss of specialized nerve cells, called motor neurons that control muscle movement. The weakness tends to be more severe in the muscles that are close to the center of the body (proximal) compared to muscles away from the body's center (distal). The muscle weakness usually worsens with age. There are many types of spinal muscular atrophy that are caused by changes in the same genes. The types differ in age of onset and severity of muscle weakness; however, there is overlap between the types. Other forms of spinal muscular atrophy and related motor neuron diseases, such as spinal muscular atrophy with progressive myoclonic epilepsy, spinal muscular atrophy with lower extremity predominance, X-linked infantile spinal muscular atrophy, and spinal muscular atrophy with respiratory distress type 1 are caused by mutations in other genes.<br /><br />Spinal muscular atrophy type 0 is evident before birth and is the rarest and most severe form of the condition. Affected infants move less in the womb, and as a result they are often born with joint deformities (contractures). They have extremely weak muscle tone (hypotonia) at birth. Their respiratory muscles are very weak and they often do not survive past infancy due to respiratory failure. Some infants with spinal muscular atrophy type 0 also have heart defects that are present from birth (congenital).<br /><br />Spinal muscular atrophy type I (also called Werdnig-Hoffmann disease) is the most common form of the condition. It is a severe form of the disorder with muscle weakness evident at birth or within the first few months of life. Most affected children cannot control their head movements or sit unassisted. Children with this type may have swallowing problems that can lead to difficulty feeding and poor growth. They can also have breathing problems due to weakness of respiratory muscles and an abnormally bell-shaped chest that prevents the lungs from fully expanding. Most children with spinal muscular atrophy type I do not survive past early childhood due to respiratory failure.<br /><br />Spinal muscular atrophy type II (also called Dubowitz disease) is characterized by muscle weakness that develops in children between ages 6 and 12 months. Children with this type can sit without support, although they may need help getting to a seated position. However, as the muscle weakness worsens later in childhood, affected individuals may need support to sit. Individuals with spinal muscular atrophy type II cannot stand or walk unaided. They often have involuntary trembling (tremors) in their fingers, a spine that curves side-to-side (scoliosis), and respiratory muscle weakness that can be life-threatening. The life span of individuals with spinal muscular atrophy type II varies, but many people with this condition live into their twenties or thirties.<br /><br />Spinal muscular atrophy type IV is rare and often begins in early adulthood. Affected individuals usually experience mild to moderate muscle weakness, tremors, and mild breathing problems. People with spinal muscular atrophy type IV have a normal life expectancy.<br /><br />Spinal muscular atrophy type III (also called Kugelberg-Welander disease) typically causes muscle weakness after early childhood. Individuals with this condition can stand and walk unaided, but over time, walking and climbing stairs may become increasingly difficult. Many affected individuals require wheelchair assistance later in life. People with spinal muscular atrophy type III typically have a normal life expectancy. <a target="_blank" href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy">https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy</a></div></div>
|
||
</div>
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||
|
||
<div class="portlet mgSection" id="ID_102">
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<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_347285"><div><strong>Areflexia of lower limbs</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>347285</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) Click for more information.">C1856694</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Inability to elicit tendon reflexes in the lower limbs.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/347285">Feature record</a> | <a href="/medgen?term=%22Areflexia%20of%20lower%20limbs%22%5BClinical%20Features%5D%20OR%20347285%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) 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_68689"><div><strong>Hand tremor</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>68689</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) Click for more information.">C0239842</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove">An unintentional, oscillating to-and-fro muscle movement affecting the hand.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/68689">Feature record</a> | <a href="/medgen?term=%22Hand%20tremor%22%5BClinical%20Features%5D%20OR%2068689%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_375215"><div><strong>Degeneration of anterior horn cells</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>375215</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) Click for more information.">C1843505</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/375215">Feature record</a> | <a href="/medgen?term=%22Degeneration%20of%20anterior%20horn%20cells%22%5BClinical%20Features%5D%20OR%20375215%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_7755"><div><strong>Spinal muscular atrophy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>7755</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) Click for more information.">C0026847</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Spinal muscular atrophy (SMA) is characterized by muscle weakness and atrophy resulting from progressive degeneration and irreversible loss of the anterior horn cells in the spinal cord (i.e., lower motor neurons) and the brain stem nuclei. The onset of weakness ranges from before birth to adulthood. The weakness is symmetric, proximal greater than distal, and progressive. Before the genetic basis of SMA was understood, it was classified into clinical subtypes based on maximum motor function achieved; however, it is now apparent that the phenotype of SMN1-associated SMA spans a continuum without clear delineation of subtypes. With supportive care only, poor weight gain with growth failure, restrictive lung disease, scoliosis, and joint contractures are common complications; however, newly available targeted treatment options are changing the natural history of the disease.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/7755">Feature record</a> | <a href="/medgen?term=%22Spinal%20muscular%20atrophy%22%5BClinical%20Features%5D%20OR%207755%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_113169"><div><strong>Proximal muscle weakness</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>113169</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) Click for more information.">C0221629</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.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/113169">Feature record</a> | <a href="/medgen?term=%22Proximal%20muscle%20weakness%22%5BClinical%20Features%5D%20OR%20113169%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_330782"><div><strong>Centrally nucleated skeletal muscle fibers</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>330782</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) Click for more information.">C1842170</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove">An abnormality in which the nuclei of sarcomeres take on an abnormally central localization (or in which this feature is found in an increased proportion of muscle cells).</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/330782">Feature record</a> | <a href="/medgen?term=%22Centrally%20nucleated%20skeletal%20muscle%20fibers%22%5BClinical%20Features%5D%20OR%20330782%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) 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_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) 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_342591"><div><strong>Proximal amyotrophy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>342591</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) Click for more information.">C1850794</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Amyotrophy (muscular atrophy) affecting the proximal musculature.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/342591">Feature record</a> | <a href="/medgen?term=%22Proximal%20amyotrophy%22%5BClinical%20Features%5D%20OR%20342591%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_376893"><div><strong>Muscle fiber necrosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>376893</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) Click for more information.">C1850848</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Pathologic Function</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Abnormal cell death involving muscle fibers usually associated with break in, or absence of, muscle surface fiber membrane and resulting in irreversible damage to muscle fibers.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/376893">Feature record</a> | <a href="/medgen?term=%22Muscle%20fiber%20necrosis%22%5BClinical%20Features%5D%20OR%20376893%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_340089"><div><strong>Rimmed vacuoles</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>340089</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) Click for more information.">C1853932</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Presence of abnormal vacuoles (membrane-bound organelles) in the sarcolemma. On histological staining with hematoxylin and eosin, rimmed vacuoles are popcorn-like clear vacuoles with a densely blue rim. The vacuoles are often associated with cytoplasmic and occasionally intranuclear eosinophilic inclusions.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/340089">Feature record</a> | <a href="/medgen?term=%22Rimmed%20vacuoles%22%5BClinical%20Features%5D%20OR%20340089%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_344274"><div><strong>Type 1 muscle fiber predominance</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>344274</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) Click for more information.">C1854387</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove">An abnormal predominance of type I muscle fibers (in general, this feature can only be observed on muscle biopsy).</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/344274">Feature record</a> | <a href="/medgen?term=%22Type%201%20muscle%20fiber%20predominance%22%5BClinical%20Features%5D%20OR%20344274%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_867363"><div><strong>EMG: neuropathic changes</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>867363</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) Click for more information.">C4021727</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove">The presence of characteristic findings of denervation on electromyography (fibrillations, positive sharp waves, and giant motor unit potentials).</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/867363">Feature record</a> | <a href="/medgen?term=%22EMG%3A%20neuropathic%20changes%22%5BClinical%20Features%5D%20OR%20867363%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_870170"><div><strong>Quadriceps muscle atrophy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>870170</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) Click for more information.">C4024603</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Pathologic Function</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Muscular atrophy involving the quadriceps muscle.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/870170">Feature record</a> | <a href="/medgen?term=%22Quadriceps%20muscle%20atrophy%22%5BClinical%20Features%5D%20OR%20870170%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_1699728"><div><strong>Angulated muscle fibers</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1699728</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) Click for more information.">C5233187</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Normal muscle fibers are polygonal-shaped in cross section, are multinucleated, and have minimal amounts of endomysial connective tissue. In contrast, angulated (also known as angular) muscle fibers have long and narrow vertices (corners) with sharp edges and a pointed tip.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/1699728">Feature record</a> | <a href="/medgen?term=%22Angulated%20muscle%20fibers%22%5BClinical%20Features%5D%20OR%201699728%5Buid%5D">Search on this feature</a></div></div>
|
||
<div class="divPopper rprt" id="clin_65987"><div><strong>Tongue fasciculations</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>65987</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) Click for more information.">C0239548</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
|
||
<div class="spaceAbove">Fasciculations or fibrillation affecting the tongue muscle.</div>
|
||
<div class="spaceAbove nowrap">See: <a href="/medgen/65987">Feature record</a> | <a href="/medgen?term=%22Tongue%20fasciculations%22%5BClinical%20Features%5D%20OR%2065987%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(".TreeLite","#ID_102").TreeLite().openAll(); return false;">Show all</a><a class="small" href="#" onclick="jQuery(".TreeLite","#ID_102").TreeLite().closeAll(); return false;">Hide all</a></div><ul><li><span class="TLline">Abnormality of head or neck</span><ul><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_65987" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Tongue fasciculations</a></span></li></ul></li><li><span class="TLline">Abnormality of limbs</span><ul><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_347285" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Areflexia of lower limbs</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_1699728" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Angulated muscle fibers</a></span></li><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_330782" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Centrally nucleated skeletal muscle fibers</a></span></li><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_867363" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">EMG: neuropathic changes</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_376893" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Muscle fiber necrosis</a></span></li><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_342591" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Proximal amyotrophy</a></span></li><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_113169" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Proximal muscle weakness</a></span></li><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_870170" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Quadriceps muscle atrophy</a></span></li><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_340089" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Rimmed vacuoles</a></span></li><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_7755" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Spinal muscular atrophy</a></span></li><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_344274" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Type 1 muscle fiber predominance</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_375215" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Degeneration of anterior horn cells</a></span></li><li class="TLline">
|
||
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_68689" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hand tremor</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>
|
||
</div>
|
||
|
||
<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>
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||
<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><li><a href="#tabORDO">Orphanet</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="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0026847[DISCUI]&test_type=Clinical" ref="ncbi_uid=7755">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1352/" ref="ncbi_uid=7755">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&from_uid=7755" ref="ncbi_uid=7755">V</a></span></span><span class="TLline"><a href="/medgen/7755" ref="tree=GTR&ncbi_uid=7755&link_uid=7755" title="View MedGen record for 'Spinal muscular atrophy'">Spinal muscular atrophy</a></span><ul><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0152109[DISCUI]&test_type=Clinical" ref="ncbi_uid=101816">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=101816" target="_blank" href="/omim/253400">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1352/" ref="ncbi_uid=101816">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&from_uid=101816" ref="ncbi_uid=101816">V</a></span></span><span class="TLline"><a href="/medgen/101816" ref="tree=GTR&ncbi_uid=101816&link_uid=101816" title="View MedGen record for 'Kugelberg-Welander disease'">Kugelberg-Welander disease</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0393538[DISCUI]&test_type=Clinical" ref="ncbi_uid=95975">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=95975" target="_blank" href="/omim/253550">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1352/" ref="ncbi_uid=95975">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&from_uid=95975" ref="ncbi_uid=95975">V</a></span></span><span class="TLline"><a href="/medgen/95975" ref="tree=GTR&ncbi_uid=95975&link_uid=95975" title="View MedGen record for 'Spinal muscular atrophy, type II'">Spinal muscular atrophy, type II</a></span></li><li class="matched_ds"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C1838230[DISCUI]&test_type=Clinical" ref="ncbi_uid=325364">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=325364" target="_blank" href="/omim/271150">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1352/" ref="ncbi_uid=325364">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&from_uid=325364" ref="ncbi_uid=325364">V</a></span></span><span class="TLline">Spinal muscular atrophy, type IV</span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C5848259[DISCUI]&test_type=Clinical" ref="ncbi_uid=1845578">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=1845578" target="_blank" href="/omim/253300">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1352/" ref="ncbi_uid=1845578">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&from_uid=1845578" ref="ncbi_uid=1845578">V</a></span></span><span class="TLline"><a href="/medgen/1845578" ref="tree=GTR&ncbi_uid=1845578&link_uid=1845578" title="View MedGen record for 'Werdnig-Hoffmann disease'">Werdnig-Hoffmann disease</a></span></li></ul></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/78728" ref="tree=MeSH" title="MedGen record for Hereditary motor neuron disease">Hereditary motor neuron disease</a></span><ul><li><span class="TLline"><a href="/medgen/870510" ref="tree=MeSH" title="MedGen record for Proximal spinal muscular atrophy">Proximal spinal muscular atrophy</a></span><ul><li><span class="matched_ds">Spinal muscular atrophy, type IV</span></li></ul></li></ul></li></ul></div></div><div id="tabORDO">Follow <a target="_blank" href="http://www.orpha.net/consor/cgi-bin/Disease_Classif.php?lng=EN&data_id=156&PatId=11567&search=Disease_Classif_Simple&new=1" class="ital bold">this link</a> to review classifications for <span class="ital">Spinal muscular atrophy, type IV</span> in Orphanet.</div></div></div>
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</div>
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<div class="portlet mgSection" id="ID_105">
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Professional_guidelines">Professional guidelines</h1><a sid="105" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
|
||
<div class="portlet_content ln"><h3 class="subhead">PubMed<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpPM"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
|
||
<div class="nl"><a target="_blank" href="/pubmed/33472673">Treatment preference among patients with spinal muscular atrophy (SMA): a discrete choice experiment.</a></div>
|
||
<div class="portlet_content ln"><span class="medgenPMauthor">Monnette A,
|
||
Chen E,
|
||
Hong D,
|
||
Bazzano A,
|
||
Dixon S,
|
||
Arnold WD,
|
||
Shi L</span><br />
|
||
<span class="medgenPMjournal">Orphanet J Rare Dis</span>
|
||
2021 Jan 20;16(1):36.
|
||
doi: 10.1186/s13023-020-01667-3.
|
||
<span class="bold">PMID: </span><a href="/pubmed/33472673" target="_blank">33472673</a><a href="/pmc/articles/PMC7819167" target="_blank" class="PubMedFree">Free PMC Article</a></div>
|
||
|
||
<div class="nl"><a target="_blank" href="/pubmed/32006461">Drug treatment for spinal muscular atrophy types II and III.</a></div>
|
||
<div class="portlet_content ln"><span class="medgenPMauthor">Wadman RI,
|
||
van der Pol WL,
|
||
Bosboom WM,
|
||
Asselman FL,
|
||
van den Berg LH,
|
||
Iannaccone ST,
|
||
Vrancken AF</span><br />
|
||
<span class="medgenPMjournal">Cochrane Database Syst Rev</span>
|
||
2020 Jan 6;1(1):CD006282.
|
||
doi: 10.1002/14651858.CD006282.pub5.
|
||
<span class="bold">PMID: </span><a href="/pubmed/32006461" target="_blank">32006461</a><a href="/pmc/articles/PMC6995983" target="_blank" class="PubMedFree">Free PMC Article</a></div>
|
||
|
||
<div class="nl"><a target="_blank" href="/pubmed/31825542">Drug treatment for spinal muscular atrophy type I.</a></div>
|
||
<div class="portlet_content ln"><span class="medgenPMauthor">Wadman RI,
|
||
van der Pol WL,
|
||
Bosboom WM,
|
||
Asselman FL,
|
||
van den Berg LH,
|
||
Iannaccone ST,
|
||
Vrancken AF</span><br />
|
||
<span class="medgenPMjournal">Cochrane Database Syst Rev</span>
|
||
2019 Dec 11;12(12):CD006281.
|
||
doi: 10.1002/14651858.CD006281.pub5.
|
||
<span class="bold">PMID: </span><a href="/pubmed/31825542" target="_blank">31825542</a><a href="/pmc/articles/PMC6905354" target="_blank" class="PubMedFree">Free PMC Article</a></div>
|
||
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(spinal%20muscular%20atrophy%2C%20type%20iv)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">See all (6)</a></div><h3 class="subhead">Curated<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpCurated"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
|
||
<div class="nl"><a target="_blank" href="/pubmed/22510849">Clinical utility gene card for: proximal spinal muscular atrophy.</a></div>
|
||
<div class="portlet_content ln"><span class="medgenPMauthor">Rudnik-Schöneborn S,
|
||
Eggermann T,
|
||
Kress W,
|
||
Lemmink HH,
|
||
Cobben JM,
|
||
Zerres K</span><br />
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||
<span class="medgenPMjournal">Eur J Hum Genet</span>
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||
2012 Jun;20(6)
|
||
Epub 2012 Apr 18
|
||
doi: 10.1038/ejhg.2012.62.
|
||
<span class="bold">PMID: </span><a href="/pubmed/22510849" target="_blank">22510849</a><a href="/pmc/articles/PMC3355269" target="_blank" class="PubMedFree">Free PMC Article</a></div>
|
||
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=" title="PubMed search"></a></div><h3 class="nl vspace"><a href="https://www.acmg.net/PDFLibrary/SMA-ACT-Sheet.pdf" target="_blank">American College of Medical Genetics and Genomics, Newborn Screening ACT Sheet, Exon 7 Deletion (Pathogenic Variant) in Survival Motor Neuron Gene (SMN1), Spinal Muscular Atrophy (SMA), 2020</a></h3>
|
||
</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">Therapy</h3>
|
||
<div class="nl"><a target="_blank" href="/pubmed/26134627">Plastin 3 Expression Does Not Modify Spinal Muscular Atrophy Severity in the ∆7 SMA Mouse.</a></div>
|
||
<div class="portlet_content ln"><span class="medgenPMauthor">McGovern VL,
|
||
Massoni-Laporte A,
|
||
Wang X,
|
||
Le TT,
|
||
Le HT,
|
||
Beattie CE,
|
||
Rich MM,
|
||
Burghes AH</span><br />
|
||
<span class="medgenPMjournal">PLoS One</span>
|
||
2015;10(7):e0132364.
|
||
Epub 2015 Jul 2
|
||
doi: 10.1371/journal.pone.0132364.
|
||
<span class="bold">PMID: </span><a href="/pubmed/26134627" target="_blank">26134627</a><a href="/pmc/articles/PMC4489873" target="_blank" class="PubMedFree">Free PMC Article</a></div>
|
||
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Spinal%20muscular%20atrophy%2C%20type%20IV%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></div>
|
||
</div>
|
||
</div></div></div></div></div></div></div>
|
||
<div id="messagearea_bottom">
|
||
|
||
</div>
|
||
<div class=" bottom">
|
||
|
||
</div>
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||
|
||
</div>
|
||
</div>
|
||
<div class="supplemental col three_col last">
|
||
<h2 class="offscreen_noflow">Supplemental Content</h2>
|
||
|
||
<div>
|
||
|
||
<!-- MedGen supplemental column starts here -->
|
||
<div class="rightCol mgCol">
|
||
<div class="portlet mgSection" id="ID_113">
|
||
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Table_of_contents">Table of contents</h1><a sid="113" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
|
||
<div class="portlet_content ln"><ul id="my-toc"></ul></div>
|
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</div>
|
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|
||
<div class="portlet mgSection" id="ID_106">
|
||
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Genetic_Testing_Registry">Genetic Testing Registry</h1><a sid="106" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
|
||
<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C1838230%5bDISCUI%5d&filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (24)</a></li>
|
||
<li><a href="/gtr/tests?term=C1838230%5bDISCUI%5d&filter=method%3A2%5F18" target="_blank">Mutation scanning of select exons (1)</a></li>
|
||
<li><a href="/gtr/tests?term=C1838230%5bDISCUI%5d&filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (15)</a></li>
|
||
<li><a href="/gtr/tests?term=C1838230%5bDISCUI%5d&filter=method%3A2%5F19" target="_blank">Targeted variant analysis (4)</a></li>
|
||
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C1838230%5bDISCUI%5d" target="_blank">See all (28)</a></total></li>
|
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</ul></div>
|
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</div>
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|
||
<div class="portlet mgSection" id="ID_119">
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Clinical_resources">Clinical resources</h1><a sid="119" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
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||
<div class="portlet_content ln"><ul><li><a href="https://www.omim.org/search?index=entry&start=1&limit=10&sort=score%20desc&field=number&search=271150" target="_blank">OMIM</a></li><li><a href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Expert=83420" target="_blank">Orphanet</a></li><li><a href="https://clinicaltrials.gov/search?cond=Spinal%20muscular%20atrophy,%20type%20IV" target="_blank">ClinicalTrials.gov</a></li></ul></div>
|
||
</div>
|
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|
||
<div class="portlet mgSection" id="ID_121">
|
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Practice_guidelines">Practice guidelines</h1><a sid="121" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
|
||
<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(spinal%20muscular%20atrophy%2C%20type%20iv)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">PubMed</a><div class="help-popup">See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li><li><a target="_blank" href="/books/?term=((%22clinical%20guidelines%22%5BResource%20Type%5D)%20OR%20%22practice%20guideline%22%5BPublication%20Type%5D)%20AND%20(%22Spinal%20muscular%20atrophy%2C%20type%20IV%22)">Bookshelf</a><div class="help-popup">See practice and clinical guidelines in NCBI Bookshelf. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li></ul><h3 class="subhead">Curated</h3><ul class="a_poppers"><li><a target="_blank" href="https://www.acmg.net/PDFLibrary/SMA-ACT-Sheet.pdf">ACMG ACT, 2020</a><div>American College of Medical Genetics and Genomics, Newborn Screening ACT Sheet, Exon 7 Deletion (Pathogenic Variant) in Survival Motor Neuron Gene (SMN1), Spinal Muscular Atrophy (SMA), 2020</div></li><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov//22510849/">EuroGenetest, 2012</a><div>Clinical utility gene card for: proximal spinal muscular atrophy.</div></li></ul></div>
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<div class="portlet mgSection" id="ID_115">
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Molecular_resources">Molecular resources</h1><a sid="115" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
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<div class="portlet_content ln"><ul><li><a href="http://www.omim.org/search?index=entry&start=1&limit=10&sort=score%20desc&field=number&search=600354" target="_blank">OMIM</a></li><li><a href="/clinvar/?term=6606[geneid]" target="_blank">View SMN1 variations in ClinVar</a></li><li><a href="/nuccore/209413713" target="_blank">RefSeqGene</a></li><li><a href="https://catalog.coriell.org/Search?q=271150" target="_blank">Coriell Institute for Medical Research</a></li></ul></div>
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<div class="portlet_content ln"><ul><li><a href="http://www.diseaseinfosearch.org/Spinal+muscular+atrophy+type+4/6737" target="_blank">Genetic Alliance</a></li><li><a href="https://www.malacards.org/card/spinal_muscular_atrophy_type_iv" target="_blank">MalaCards</a></li><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&query=Spinal%20muscular%20atrophy,%20type%20IV" target="_blank">MedlinePlus</a></li><li><a href="https://medlineplus.gov/genetics/condition/spinal-muscular-atrophy" target="_blank">MedlinePlusGenetics (GHR)</a></li><li><a href="https://rarediseases.info.nih.gov/diseases/564/disease" target="_blank">NCATS Office of Rare Diseases Research (GARD)</a></li></ul></div>
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<a href="/pubmed/20301526" ref="ncbi_uid=&discoId=gtr_reviews&linkpos=1&linkpostotal=3" target="_blank"><span class="gene_reviews">GeneReviews</span></a>
|
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|
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|
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<a class="brieflinkpopperctrl" href="/clinvar?LinkName=medgen_clinvar&from_uid=325364" ref="log$=recordlinks">ClinVar</a>
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<a class="brieflinkpopperctrl" href="/gtr/tests?term=C1838230[DISCUI]&test_type=Clinical" ref="log$=recordlinks">GTR(Clinical)</a>
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<div class="brieflinkpop offscreen_noflow">Clinical tests in GTR</div>
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<a class="brieflinkpopperctrl" href="/mesh?LinkName=medgen_mesh&from_uid=325364" ref="log$=recordlinks">MeSH</a>
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<a class="brieflinkpopperctrl" href="/pubmed?LinkName=medgen_pubmed_genereviews&from_uid=325364" ref="log$=recordlinks">PubMed (GeneReviews)</a>
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<div class="brieflinkpop offscreen_noflow">GeneReviews in PubMed</div>
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<a class="brieflinkpopperctrl" href="/pubmed?LinkName=medgen_pubmed_omim&from_uid=325364" ref="log$=recordlinks">PubMed (OMIM)</a>
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<div class="brieflinkpop offscreen_noflow">Related literature resources in PubMed</div>
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<a class="htb ralinkpopperctrl" ref="log$=activity&linkpos=1" href="/portal/utils/pageresolver.fcgi?recordid=67d5643884f3725e596f8e69">Spinal muscular atrophy, type IV</a>
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<div class="ralinkpop offscreen_noflow">Spinal muscular atrophy, type IV<div class="brieflinkpopdesc"></div></div>
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<div class="tertiary">MedGen</div>
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<a class="htb ralinkpopperctrl" ref="log$=activity&linkpos=2" href="/portal/utils/pageresolver.fcgi?recordid=67d5641667c23b31e0ed64c1">Spinal Muscular Atrophy - GeneReviews®</a>
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<a class="htb ralinkpopperctrl" ref="log$=activity&linkpos=3" href="/portal/utils/pageresolver.fcgi?recordid=67d564152f30673f7b32c27d">Table B. [OMIM Entries for Spinal Muscular Atrophy (View All in OMIM)]. - GeneRe...</a>
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<div class="ralinkpop offscreen_noflow">Table B. [OMIM Entries for Spinal Muscular Atrophy (View All in OMIM)]. - GeneReviews®<div class="brieflinkpopdesc"></div></div>
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<div class="ralinkpop offscreen_noflow">CDH12P3 cadherin 12 pseudogene 3 [Homo sapiens]<div class="brieflinkpopdesc">Gene ID:100093624</div></div>
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<div class="tertiary">Gene</div>
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<div class="ralinkpop offscreen_noflow">GUSBP14 GUSB pseudogene 14 [Homo sapiens]<div class="brieflinkpopdesc">Gene ID:11039</div></div>
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