1、本实验检查了每周二次经腹腔注射0.1,0.01及0.001毫克硝酸铀酰(每公斤体重),经4、8、12、18及24次注射后大白鼠肾脏的组织学变化; 2、多次注射0.1毫克硝酸铀酰时并不出现积累现象,相反,肾脏病变有逐渐减轻的趋势,第18及24次注射后,一部分动物肾脏已经与对照鼠没有差别; 3、多次注射0.01及0.001毫克硝酸铀酰后除个别0.01毫克组动物肾脏有可疑的损害外,其余动物肾脏与对照鼠相同。 1, this experiment examined the intraperitoneal injection of 0.1, 0.01 and 0.001 mg of uranyl nitrate (per kilogram of body weight) intraperitoneally twice a week histological changes in rats after 4,8,12,18 and 24 injection; 2, On the contrary, there was a tendency of lessening of renal lesions. After the 18th and 24th injections, part of the animal’s kidney had no difference with that of the control mice. 3. After multiple injections of 0.01 and 0.001 mg of uranyl nitrate, except for the individual 0.01 mg group of animal kidney suspicious damage, the rest of the animal kidney and control mice the same.