cardiovascular system
• cardiac myocyte disorganization, where myocytes form in a criss-crossed fashion, overlapping one another
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• distention or separation of the myocardial and endocardial cell layers of the atria occurs at E17.5
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• atrial trabecular formation is impaired such that trabeculae at E14.5 are short and stubby
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muscle
• atrial trabecular formation is impaired such that trabeculae at E14.5 are short and stubby
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• cultured embryonic muscle stem cells from E15.5 to E17.5 exhibit hyperproliferation and apoptosis
• Pax7+ skeletal muscle stem cell population is reduced and disorganized at E17.5
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• myotubes are hypertrophic in E13.5-E17.5 muscles
• myonuclei of myotubes are closer together and exhibit severely disrupted myonuclei spacing and nuclei bunching, especially at the ends of myotubes, at E17.5
• only central nuclei (not peripheral) are present in E15.5 muscles
• myotubes contain 2x as many myonuclei as wild-type myotubes at E13.5-E17.5
• muscles exhibit an excess of myotubes at E13.5-E17.5
• however, no myotube fiber splitting is seen and intercostal myotubes are aligned correctly
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• cardiac myocyte disorganization, where myocytes form in a criss-crossed fashion, overlapping one another
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• only central nuclei (not peripheral) are present in E15.5 muscles
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Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
rippling muscle disease 2 | DOID:0060255 |
OMIM:606072 |
J:150127 |