Objective To observe the effects of Shengqing Chinese herbs on the obesity and leptin resistance of diet-induced obesity (DIO) rats.Methods Wistar rats were produced a rat model including of 40 DIO rats and 10 DIO-R rats. The DIO rats were divided into DIO model group, sibutramine group, Jianpi Liqi group and Shengqing group, which were respectively by gavage of saline, sibutramine, Jianpi Liqi herbs (Citri reticulatae pericarpium, Aucklandiae radix, Aurantii fructus immaturus), Shengqing herbs (Bupleuri radix, Cimicifugae rhizoma, Puerariae lobatae radix), blank control group and DIO-R group were by gavage of saline. Their weight, were examined after 16 weeks gavage. Leptin and neuropeptide Y in the serum were examined. Leptin, TNF-α, and suppressors of cytokine signaling-3 (SOCS-3) in the homogenized fat were examined. Results Compared with the DIO-R group, DIO model group's body weight, NPY significantly increased (P<0.01);leptin in the serum and homogenized fat decreased (P<0.05);SOCS-3 increased (P<0.05). After drug intervention, weight of each drug group declined. Compared with the DIO model group, Jianpi Liqi group's leptin in the homogenized fat increased (P<0.05). Shengqing group's leptin in homogenized fat increased, body weight reduced, NPY and SOCS-3 levels decreased, and better than sibutramine group and Jianpi Liqi group (P<0.05,P<0.01).Conclusion Shengqing herbs can reduce obesity and inhibit leptin resistance.

Background:TLR4 can mediate immune and inflammatory responses,TFF3,MUC2 are the intestinal mucosa protection factor and can maintain the intestinal barrier function. Aims:To investigate the effect of Anchang Yuyang decoction on colon tissue TFF3,MUC2 and TLR4 gene expressions in rats with ulcerative colitis. Methods:TNBS was used to establish ulcerative colitis model in rats. Ninety Wistar rats were randomly divided into normal control group,model group,low,moderate and high dose Anchang Yuyang decoction groups and mesalazine group,and distilled water,different concentrations of Anchang Yuyang decoction and mesalazine were given respectively. All the rats were sacrificed after 21 days. Colonic histopathological score was assessed,and RT-PCR was used to detect gene expressions of colon tissue TFF3, MUC2 and TLR4. Results:Compared with model group,histopathological score and TLR4 expression were significantly decreased in moderate,high dose Anchang Yuyang decoction groups and mesalazine group(P < 0. 05),expressions of TFF3 and MUC2 were significantly increased( P < 0. 05). Compared with moderate dose Anchang Yuyang decoction group,histopathological score in high dose Anchang Yuyang decoction group and mesalazine group was significantly decreased(P < 0. 05),and TFF3 expression was significantly increased( P < 0. 01). Compared with moderate dose Anchang Yuyang decoction group and mesalazine group,MUC2 expression in high dose Anchang Yuyang decoction group was significantly increased(P < 0. 01),and TLR4 expression was significantly decreased( P < 0. 01). Conclusions:Anchang Yuyang decoction can promote the repair of colonic mucosa in rats with ulcerative colitis,and its mechanism may be related to the increase of TFF3 and MUC2 gene expressions and down regulation of TLR4 gene expression.