Upregulates GSH, CAT, Na+/K+-ATPase and PON1 in tumour + DDW group compared to tumour group;downregulates LPO, GPX, GR, GST, GGT, PC, SDH, ALT, AST, MPO and XO in thetumour + DDW groupcompared to the tumour group. The gene discussed is MPO; the disease is neoplasm.