The current meta-analysis provides strong evidence that ALDH2 Glu504Lys polymorphism may be associated with increased risk of CAD and MI in East Asians, especially among Chinese and Korean populations.
Individuals with A/A or A/G genotypes of rs671 have a higher CAD risk, if they lack physical activity and take fried food regularly, than individuals with G/G genotypes.
After assigning the most common allele combination as a reference, allele combination A-C-C-T-C-A, which simultaneously possessed the risk alleles of rs2073478 and rs671 polymorphisms, was associated with a 1.80-fold greater risk of CAD.
The association between the aldehyde dehydrogenase 2 (ALDH2, rs671) genotypes and the estimated glomerular filtration rate (eGFR) was investigated in Japanese hypertensive patients with/without coronary artery disease or with ischemic heart failure (HF), and age/sex-matched normotensive healthy controls.
In the subgroup analysis, the results revealed that rs671 were significantly associated with CAD (OR=1.24, 95%CI: 1.11-1.38, p<0.001) in non-alcoholic subjects.
Previous studies demonstrated that aldehyde dehydrogenase 2 (ALDH2) rs671 polymorphism, which eliminates ALDH2 activity down to 1%-6%, is a susceptibility gene for coronary disease.