... studies, we evaluated the risk of the variant geno-types (Pro/Pro, Val/ Val), compared with the wild-type genotype (Arg/Arg, Ile/ Ile). Then we cal-culated the ORs of the polymorphisms, using both ... reasonable to hypothesize that the Arg72Pro poly-morphism with reduced activity of p53 may play more important role in esophageal cancer risk. In the present meta-analysis on the association ... ZW, Taylor PR, Dawsey SM, Qiao YL: Polymorphic variation of cyp1a1 is associated with the risk of gastric cardia cancer: A prospective case-cohort study of cytochrome p-450 1a1 and gst enzymes....