None of studied single genetic variants-F13A1Val34Leu, THBS2 T/G 3'UTR and THBS4 Ala387Pro-and the extended CC/TT/GG haplotype of F13A1/THBS2/THBS4 genes was associated with MI in young age.
Therefore, in the present case-control study (a substudy to the Stockholm Heart Epidemiology Program), the effects of the fibrinogen gamma (FGG) 9340T>C [rs1049636], fibrinogen alpha (FGA) 2224G>A [rs2070011] and F13A1Val34Leu [rs5985] htSNPs on concentrations of plasma fibrinogen and serum IL-6 and risk of MI were assessed.
An intricate interplay between the genes encoding fibrinogen gamma (FGG), alpha (FGA) and beta (FGB), coagulation factor XIII (F13A1) and interleukin 6 (IL6) and environmental factors is likely to influence plasma fibrinogen concentration, fibrin clot structure and risk of myocardial infarction (MI).
The presence of the factor XIIIA Leu34 allele was associated with a reduced risk of MI (odds ratio [OR] = 0.70, 95% confidence interval [95% CI] = 0.51-0.95).
The presence of the factor XIIIA Leu34 allele was associated with a reduced risk of MI (odds ratio [OR] = 0.70, 95% confidence interval [95% CI] = 0.51-0.95).