The invention relates to an inhibitor, in particular an antisense oligonucleotide, directed against the enhancer RNA SINT1 for use in a method for the prevention or treatment of heart disease, particularly for cardiomyopathy. The antisense oligonucleotide is a gapmer or RNA interference (RNAi) agent. The antisense oligonucleotide is particularly suitable for the treatment of cardiomyopathy resulting from cardiac overload.
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