期刊
EUROPEAN HEART JOURNAL
卷 28, 期 22, 页码 2732-2737出版社
OXFORD UNIV PRESS
DOI: 10.1093/eurheartj/ehm429
关键词
non-compaction cardiomyopathy; beta-myosin heavy chain gene; left ventricular non-compaction cardiomyopathy
Cardiomyopathies are classified according to distinct morphological characteristics. They occur relatively frequent and are an important cause of mortality and morbidity. Isolated ventricular noncompaction or non-compaction cardiomyopathy (NCCM) is characterized by an excessively thickened endocardial layer with deep intertrabecular recesses, reminiscent of the myocardium during early embryogenesis. Aims Autosomal-dominant as well as X-linked inheritance for NCCM has been described and several loci have been associated with the disease. Nevertheless, a major genetic cause for familial NCCM remains to be identified. Methods and Results We describe, in two separate autosomal-dominant NCCM families, the identification of mutations in the sarcomeric cardiac beta-myosin heavy chain gene (MYH7), known to be associated with hypertrophic cardiomyopathy (HCM), restricted cardiomyopathy (RCM), and dilated cardiomyopathy (DCM). Conclusion These results confirm the genetic heterogeneity of NCCM and suggest that the molecular classification of cardiomyopathies includes an MYH7-associated spectrum of NCCM with HCM, RCM, and DCM.
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