Depiction of the biological functions of the proteins encoded by the investigated genes and the impact of relative polymorphisms. ROS, reactive oxygen species; GSTP1, glutathione-S-transferase Pi1; ATP, adenosine triphosphate; FCGR, Fc gamma receptor; VEGF-A, vascular endothelial growth factor A, ABCB1, ATP-binding cassette subfamily B member 1; Ub, ubiquitin; eNOS, endothelial nitric oxide synthase.