Methods Using NADPH-d histochemistry to investigate activity change of NOS in the testis of mice, which were survived for 1,2,3,4 weeks after administration of TWF, lead acetate and cadmium chloride.

• 方法用NADPH-d黄递酶组织化学方法，观察给予氯化镉、醋酸铅、雷公藤1、2、3、4周后，小鼠睾丸间质NOS活性的变化。