Interestingly, participants homozygous for Gln had significant higher prevalence of previous myocardial infarction (Gln27Gln vs. Gln27Glu/Glu27Glu: 77 vs. 23%, p=0.02).
The ADRB2 rs1042714 (C-->G) polymorphism and two moderately correlated (r(2) = 0.77) ACE polymorphisms, rs4363 (A-->G) and rs12449782 (A-->G), were significantly associated with risks of MI in this aging cohort in multimarker models.
The Gln(27)Glu polymorphism but not the Arg(16)Gly polymorphism of the beta2-adrenergic receptor (ADRB2) gene appears to be associated with a broad range of aging-associated phenotypes, including cancers at different sites, myocardial infarction (MI), intermittent claudication (IC), and overall/healthy longevity in the Framingham Heart Study Offspring cohort.
In a prospective study cohort (CAPPP), 522 hypertensive patients (174 MI and 348 matched controls) were analysed for the Arg16Gly and the Gln27Glu polymorphisms by dynamic allele-specific hybridisation.
Four ADRB2 gene polymorphisms C19R (T-47C), T-20C, G16R (G+46A), Q27E (C+79G) were investigated in two studies: PEGASE, a study of moderate to severe hypertension (707 cases) conducted in France, and ECTIM, a case-control study of MI (1178 cases, 1187 controls) conducted in France, Northern Ireland and Scotland.