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本实验采用不同途径给予断乳Ｗｉｓｔａｒ大鼠小剂量（０．０５ｍｇ／ｋｇ、０．０２５ｍｇ／ｋｇ）氯化角钐（ＳｍＣｌ３）、氯化镨（ＰｒＣｌ３）后，测定了肝脏中过氧化脂质（ＬＰＯ）和超氧化物歧化酶（ＳＯＤ）的含量，观察了肝脏的超微结构。结果表明：ＳｍＣｌ３和ＰｒＣｌ３均使肝脏中ＬＰＯ活性降低、ＳＯＤ活性升高，二者比较ＰｒＣｌ３的作用更为明显，肝脏未见明显形态学改变。
In this study, different doses of Wistar rats were given low dose (0.05mg / kg, 0.025mg / kg) of samarium chloride (SmCl3) and praseodymium chloride (PrCl3) (LPO) and superoxide dismutase (SOD) levels were observed in the liver ultrastructure. The results showed that both SmCl3 and PrCl3 reduced LPO activity and SOD activity in the liver, and the effect of PrCl3 was more obvious than that of PrCl3. No obvious morphological changes were observed in the liver.