PON2 and coronary artery disorder: A meta-analysis performed in 2004 showed conflicting results with no significant association of PON2 Ser311Cys polymorphism [40], but a more recent research clarified that the PON2 Ser311Cys polymorphism is associated with CAD risk in Caucasians, but there is no association between this polymorphism and CAD in Asians or Hispanic populations [41].