" /> Myopathy, myofibrillar, 1 - CISMeF





Preferred Label : Myopathy, myofibrillar, 1;

Symbol : MFM1;

CISMeF acronym : ARVC7; ARVD7; CDCD3; DRM; IBM1; MFM1; LGMD2R;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : CDCD3; Myofibrillar myopathy with arrhythmogenic right ventricular cardiomyopathy; ARVC7; Desmin-related myopathy with arrhythmogenic right ventricular cardiomyopathy; Desmin-related myopathy; Arrhythmogenic right ventricular dysplasia, familial, 7; Desminopathy, primary; Myopathy, myofibrillar, desmin-related; Cmd1f and lgmd1d; IBM1; Inclusion body myopathy 1, autosomal dominant; DRM; ARVD7; Cardiomyopathy, dilated, with conduction defect and muscular dystrophy; Arrhythmogenic right ventricular cardiomyopathy 7; Cardiomyopathy, dilated, 1f and limb-girdle muscular dystrophy type 1d; LGMD2R; Muscular dystrophy, limb-girdle, type 2r;

Description : Myofibrillar myopathy (MFM) is a noncommittal term that refers to a group of morphologically homogeneous, but genetically heterogeneous chronic neuromuscular disorders. The morphologic changes in skeletal muscle in MFM result from disintegration of the sarcomeric Z disc and the myofibrils, followed by abnormal ectopic accumulation of multiple proteins involved in the structure of the Z disc, including desmin, alpha-B-crystallin (CRYAB; 123590), dystrophin (300377), and myotilin (TTID; 604103). - Genetic Heterogeneity of Myofibrillar Myopathy Other forms of MFM include alpha-B crystallinopathy (608810), caused by mutation in the CRYAB gene; myotilinopathy (609200) and spheroid body myopathy (182920), both caused by mutation in the myotilin gene;;

Inheritance : Autosomal dominant; Autosomal recessive;

Molecular basis : Caused by mutation in the desmin gene (DES, 125660.0001);

Prefixed ID : #601419;

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25/05/2025


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