Objective To explore the intervention of vitamin E on PM_(2.5)-induced cardiovascular damage in rats. Methods Thirty-six SPF male SD rats were randomly divided into six groups including coin oil control group(solvent control group),vitamin E control group,fine particulate matter exposure group(8. 0 mg/kg·bw),VE groups with PM_(2.5) exposure(the low,middle,high experimental dose were15. 0,30. 0,60. 0 mg/kg. bw). Each experimental group was exposed to an intra-tracheal instillation for 3 times after 28 days l...