METHODS Twenty Wistar rats were divided into 2 groups: SA(salicylic acid)group and control group. The two groups were injected with 10% sodium salicylate(350 mg/kg/d) and physiological saline respectively.

• 方法Wistar大鼠20只,随机平均分为2组:水杨酸组和对照组(每日分别经腹腔注射10%25水杨酸钠350mg/kg/天和生理盐水)。