PMID: 7546620Jun 1, 1995Paper

Molecular and clinical aspects of inherited cardiomyopathies

Annals of Medicine
J B DurandR Roberts

Abstract

Hypertrophic cardiomyopathy (HCM) is phenotypically and genotypically a heterogeneous disease. Since 1989, four chromosomal loci have been identified for HCM and the genes residing on three of these have been identified as beta-myosin heavy chain (beta-MHC), cardiac troponin-T and alpha-tropomyosin. These genes code for sarcomeric proteins and exhibit the same phenotype, suggesting that HCM is a disease of the sarcomere. Over 40 missense mutations and one deletion of the beta-MHC gene have been identified. Similarly, missense mutations in the alpha-tropomyosin gene and the cardiac troponin-T gene have been identified. From genetic studies, including de novo mutations, it is established that these mutations are indeed responsible for HCM. The molecular basis of the pathogenesis of the cardiac hypertrophy appears to be a compensatory response to the primary defect. In addition to providing a definitive presymptomatic diagnosis, studies correlating beta-MHC mutations with clinical prognosis suggest they have significant predictive value and can be helpful in genetic counselling and medical management. Dilated cardiomiopathies (DCM), the most common form of cardiomyopathies, have an estimated prevalence of nearly 40 per 100,000 ind...Continue Reading

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Citations

Jul 1, 1999·The Journal of Cardiovascular Nursing·M R Piano
Jun 17, 1998·The Journal of Clinical Investigation·R C FentzkeJ M Leiden
Dec 15, 2015·Basic Research in Cardiology·Zouhair AherrahrouJeanette Erdmann
Mar 10, 2001·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·R C FentzkeR M Lang
Nov 27, 2004·Journal of Cellular Biochemistry·Agnes Shuk-Yee LoMary Miu-Yee Waye

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