Objective To explore the effect of SH2-Bβ antibody intranasal administration on weight gain of mice with high fat diet.Methods C57BL/6 mice(female)aged 8 weeks were randomized to normal control group(n =12),obese group(n =12)and anti-SH2-Bβ(1∶50)intervenegroup(n =12). The amount of the food intake everyday and the weight of mice were measured every week. SH2-Bβ expression in hypothalamusand liver was detected by Western blot,and the histology change of the liver was observed by HE staining. By means of immu...