Abstract:
:Patients with restrictive cardiomyopathy (RC) have impaired diastolic function, but intact systolic function until later stages of the disease, ultimately leading to heart failure. Primary RC is often sporadic, but also may be inherited in an autosomal dominant fashion, particularly the idiopathic forms. Recently there has been great interest in inherited cardiomyopathy associated with myocyte desmin deposition ('desminopathies'). In some such families, desmin or alpha-B crystallin gene mutation is the underlying cause, and the desmin accumulation affects skeletal muscle as well, usually causing skeletal myopathy. We describe a large family with apparent autosomal dominant inheritance of desmin-associated RC spanning four generations, with the age of onset and severity/rate of progression being highly variable. This family is relatively unique in that there is no symptom-based evidence of skeletal muscle involvement, and the known desminopathy and cardiomyopathy genes/loci have been ruled out. These data support literature suggesting that desmin deposition may be associated with different underlying gene defects, and that a novel desminopathy gene is responsible for the condition in this family.
journal_name
Clin Genetjournal_title
Clinical geneticsauthors
Zhang J,Kumar A,Stalker HJ,Virdi G,Ferrans VJ,Horiba K,Fricker FJ,Wallace MRdoi
10.1034/j.1399-0004.2001.590406.xsubject
Has Abstractpub_date
2001-04-01 00:00:00pages
248-56issue
4eissn
0009-9163issn
1399-0004pii
cge590406journal_volume
59pub_type
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doi:
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