Correlations between MMP-2/MMP-9 promoter polymorphisms and ischemic stroke

Area of Science:

• Genetics and Molecular Biology
• Neurology
• Cardiovascular Research

Background:

• Ischemic stroke (IS) is a major cause of disability and mortality, often linked to atherosclerotic plaque formation.
• Matrix metalloproteinases (MMPs), specifically MMP-2 and MMP-9, are implicated in the pathogenesis of atherosclerosis and plaque instability.
• Genetic variations in MMP genes may influence an individual's susceptibility to IS.

Purpose of the Study:

• To investigate the association between specific polymorphisms in MMP-2 and MMP-9 genes and the risk of ischemic stroke.
• To identify potential genetic markers for IS susceptibility.

Main Methods:

• A case-control study involving 396 IS patients and 400 healthy controls.
• Analysis of MMP-2 (-1306C/T and -735C/T) and MMP-9 (-1562C/T) polymorphisms using restriction fragment length polymorphism (RFLP).
• Logistic regression analysis to determine the relationship between genotypes/alleles and IS risk.

Main Results:

• No significant association was found for the MMP-2 -1306C/T polymorphism.
• The MMP-2 -735C allele showed a statistically significant association with increased IS risk (OR=1.516, P=0.001).
• The MMP-9 -1562T allele was also significantly associated with a higher incidence of IS (OR=1.543, P=0.004).

Conclusions:

• The MMP-2 -735C allele and MMP-9 -1562T allele are identified as potential susceptibility alleles for ischemic stroke.
• These genetic variants may contribute to the development of IS, highlighting their role in stroke pathogenesis.