At the 30th day of the experiment ,we collected the blood and liver sample of the rats,and determined the activity of glutathione peroxidase (GSH Px) in the blood and the malonic dialdehyde (MDA) contents in serum and liver.

• 进入实验30天后活杀，测定全血谷胱甘肽过氧化物酶（GSH－Px）活力、血清及肝脏丙二醛（MDA）含量。