MTHFR and PON1 polymorphisms modulate plasma levels of homocysteine and oxidated proteins, respectively.
The highest Hcy plasma levels, together with the lowest folates, were observed in MTHFR TT677/AA1298 subjects in both groups.
Growing AOPP plasma concentrations were observed in hurdlers with either MTHFR CT677/AC1298 or TT677/AA1298 diplotypes.
AOPP were positively correlated with Hcy, and both markers were positively dependent on MTHFR genotype in hurdlers.