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Lancet. 2001 Apr 21;357(9264):1265-7.

A common mitochondrial DNA variant associated with susceptibility to dilated cardiomyopathy in two different populations.

Abstract

Idiopathic dilated cardiomyopathy is a recognised manifestation of mitochondrial disease due to specific mitochondrial (mt) DNA mutations. However, whether mtDNA polymorphisms predispose to sporadic dilated cardiomyopathy is not known. We analysed two populations with this disorder for a general mtDNA variant (T16189C), previously implicated in susceptibility to type 2 diabetes. We noted an increased frequency of the polymorphism in both populations compared with controls (p=0.002). The polymorphism occurred on different mtDNA backgrounds, suggesting that it might be a functional variant. This association of an mtDNA variant with increased susceptibility to dilated cardiomyopathy provides evidence for a mitochondrial cause in sporadic disease.

PMID:
11418155
DOI:
10.1016/S0140-6736(00)04422-6
[Indexed for MEDLINE]

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