lack of association between superoxide dismutase gene polymorphism and malignant lymphoproliferative disorders

patients and methods manganese superoxide dismutase polymorphism was genotyped using polymerase chain reaction-restriction fragment length polymorphism (pcr-rflp) in 103 patients with mlds and 103 healthy control subjects. conclusions according to the fact that mn-sod gene polymorphisms have been considered as a major risk factor in some malignancies, this single center study did not find any association between the rs4880 polymorphism of the manganese superoxide dismutase gene and risk of mlds. results the frequencies of the cc, ct and tt genotypes were 29.1%, 51.5% and 19.4%, respectively, in patients with mlds and 24.3%, 47.6% and 28.2%, respectively, in the control group. there were no statistical differences in the genotype or allele frequency of rs4880 between cases and controls. background superoxide dismutase is one of the most important antioxidant enzymes that protect cells against destructive effects of superoxide anion. objectives the aim of this study was to evaluate the association between the c47t polymorphism (rs4880) of the manganese superoxide dismutase (mn-sod) gene and the risk of malignant lymphoproliferative disorders (mlds).