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Duchenne and Becker muscular dystrophies have common signs and symptoms, and can be caused by different mutations in the same gene. Becker muscular dystrophy's signs and symptoms are usually milder and more varied. Both the Duchenne and Becker types of muscular dystrophy are linked to a heart disease called cardiomyopathy. Later, the heart muscle is enlarged, and the heart issues develop into a condition known as dilated cardiomyopathy. X-linked dilated cardiomyopathy is a form of heart disease caused by mutations in the same gene as Duchenne and Becker muscular dystrophy, and it is often described as subclinical Becker muscular dystrophy. People with X-linked dilated cardiomyopathy typically do not have any bone weakness or wasting, although they may have subtle differences in their skeletal muscle cells that are detectable by laboratory analysis.
A form of heart disease is X-linked dilated cardiomyopathy, which is a form of heart disease. Heart problems in males with X-linked dilated cardiomyopathy, heart disease, are common early in life and escalate quickly, resulting in heart failure in adolescence or early adulthood. Dilated cardiomyopathy caused by mutations in the DMD gene is part of a spectrum of related disorders caused by mutations in the DMD gene. People with X-linked dilated cardiomyopathy have no bone pain or wasting, although they may have subtle changes in their skeletal muscle cells that are detectable by laboratory testing.
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