ABSTRACT
Objective To investigate the effect of fluorouracil for injection on methylene tetrahydrofolate reductase ( MTHFR ) , glutathione S-transferase ( GST) and tumor markers in patients with advanced gastric cancer.Methods Forty-eight cases with advanced gastric cancer were selected from August 2013 to August 2014 in the hospital and divided into two groups.The control group (n=24) were treated with capecitabine plan, and the experiment group ( n=24 ) were treated with fluorouracil for injection plan.MTHFR concentration, GST activity and tumor markers [ carbohydrate antigen-199(CA199), carcinoembryonic antigen (CEA), alpha fetoprotein(AFP)] levels were compared before and after treatment.ResuIts Compared with control group, MTHFR concentration of experiment group was higher (P<0.05), GST activity was lower (P<0.05), the tumor markers levels were lower (P<0.05), total effective rate of clinical symptoms was higher [16(66.67) vs.22(91.67), χ2 =4.55, P<0.05], and incidence of adverse reactions was lower [14(58.33) vs.6(25.00), χ2 =5.49, P<0.05].ConcIusion Fluorouracil for injection chemotherapy could increase the serum MTHFR concentration, reduce GST activity, and its clinical curative effect is obvious with less adverse reactions, which has important significance in treatment of patients with advanced gastric cancer.