Matrix metalloproteinase-1, -3, and -9 gene polymorphisms and the risk of idiopathic dilated cardiomyopathy in a Chinese Han population.

Objectives: To investigate the association between matrix metalloproteinase (MMP)-1(-1607 1G/2G), MMP-3(-1171 5A/6A), and MMP-9(-1562 C/T) polymorphism and susceptibility to idiopathic dilated cardiomyopathy (IDCM).

Design And Methods: MMP-1, -3, -9 genotypes were determined by PCR-RFLP analysis.

Results: Genotype frequency of MMP-3, but not MMP-1 and MMP-9 in IDCM patients, was significantly different from that in healthy controls.