Key result
The MMP9 279Q allele was associated with plaques in any bifurcation in men, indicating sex- and site-dependent effects of MMP genotypes.
Why the study?
Are MMP genetic polymorphisms associated with carotid IMT and the presence of carotid and femoral atherosclerotic plaques in community dwellers over 40 years old?
Cross-Sectional (n=762)
Are MMP genetic polymorphisms associated with carotid IMT and the presence of carotid and femoral atherosclerotic plaques in community dwellers over 40 years old?
Common MMP genotypes are associated with the presence of atherosclerotic plaques in a site- and sex-dependent manner.
Answers are grounded in this paper and cite their sources.
MMP9 279Q association with male bifurcation plaques is hypothesis-generating; leaves open whether genotyping aids plaque risk assessment in community cohorts.
We aimed to test the association between matrix metalloproteinase (MMP) genetic polymorphisms and (a) intima-media thickness in the common carotid (IMTcc) and (b) the presence of plaques in the carotid and femoral bifurcations. Carotid and femoral bifurcations were scanned with ultrasound in 762 Cypriot community dwellers (46% men) over the age of 40 years. IMTcc and the presence of plaques were recorded. The MMP1 1G/2G, MMP3 5A/6A, MMP7 -181A>G, MMP9 R279Q, and MMP12 -82A>G polymorphisms were determined with the TaqMan method. In men, the presence of plaques in any bifurcation was associated with the MMP9 279Q allele (OR adjusted=4.50; 95% CI=2.0 to 10.1; p<0.001) and the MMP7 -181A allele was associated with the presence of femoral plaques (OR adjusted=2.61; 95% CI=1.36 to 4.99; p=0.004). In women, the presence of femoral plaques was associated with the MMP12 -82G allele (OR adjusted=1.9; 95% CI=1.14 to 3.16; p=0.014). Our results suggest that the effect of common MMP genotypes on plaque presence may be site- and sex-dependent.
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Panayiotou et al. (2013) conducted a cross-sectional in Atherosclerotic plaques (n=762). MMP genetic polymorphisms vs. Reference genotypes was evaluated on Presence of plaques in any bifurcation (in men) (OR 4.50, 95% CI 2.0 to 10.1, p=<0.001). The MMP9 279Q allele was associated with plaques in any bifurcation in men, indicating sex- and site-dependent effects of MMP genotypes.
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