A polymorphic modifier gene alters the hypertrophic response in a murine model of familial hypertrophic cardiomyopathy.

Abstract excerpt

Familial hypertrophic cardiomyopathy (FHC), an autosomal dominant disorder caused by mutationally altered dominant-acting sarcomere proteins, exhibits significant clinical heterogeneity. To determine whether genetic background could influence the expression of this disease, we studied a murine model for this human condition. Hypertrophic responses to the Arg403Gln missense mutation in a cardiac myosin heavy chain...

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