Objective:To study the effect of Vitamin E(VitE)and Sodium selenite on nonalcoholic fatty liver(NAFL).Methods:24 SD rats were randomly divided into 3 groups.The model group

treatment group and contrast group were respectively fed with high fat diet

interfering diet and normal diet.All animals were sacrificed at the end of the 5th week.The liver pathology was observed under the light microscope.Superoxide dismutase(SOD)

malondialdehyde(MDA)were determined by biochemistry analysis.The expressions of nuclear factor kappa B(NF-kB)and tumor necrosis factor alpha(TNF-α)proteins in hepatocytes were examined by immunohistochemistry.Result:①compared with the contrast group

serum and liver SOD levels decreased in model group

while MDA were raised.The expressions of NF-kB and TNF-a proteins in liver tissue increased significantly in model group.②compared with the model group

serum and liver SOD level increased in treatment group

while MDA was lowered.The expression of NF-kB proteins in liver tissue was reduced in treatment group

and no significant changes occured in TNF-a protein expression.Conclusions:Combination of sufficient quantum of VitE and Sodium selenite can improve the SOD activities and reduce the expression of NF-kB proteins in liver tissue

which is possibly the important mechanism for VitE and Sodium selenite to prevent NAFL.