Objective: To investigate the therapeutic effect of Yuchang suppository on experimental ulcerative colitis rats and the effect of PPARγ/NF-KB signaling pathway. Methods: The UC rat model was replicated by 2.4.6-trini...Objective: To investigate the therapeutic effect of Yuchang suppository on experimental ulcerative colitis rats and the effect of PPARγ/NF-KB signaling pathway. Methods: The UC rat model was replicated by 2.4.6-trinitrobenzenesulfonic acid (TNBS)/ethanol method and randomly divided into normal control group, model group, high-dose group of Yuchang suppository, middle dose group , Low-dose group and sulfasalazine group, 8 rats in each group. After 14 days of treatment, the general condition of the rats was observed and the disease activity index was scored. The changes of serum TNF-α, IL-1β and IL-6 levels were detected by ELISA. The colonic mucosal injury index (CMDI) score and colon were observed by colon specimens. Histopathological changes;RT-PCR and Western blot were used to detect the expression of PPARγ and NF-KB genes and proteins in colon tissue. Results: Compared with the normal control group, the DAI and CMDI scores in the model group and the levels of serum TNF-α, IL-1β, IL-6, NF-κB p65 mRNA and protein in colon tissue were significantly increased, PPAR. - γ mRNA and protein expression levels were significantly reduced. The levels of IL-1β, IL-6, TNF-α and the expression of NF-κB p65 mRNA and protein in colon tissue were lower than those in the model group, and the expression levels of PPARγ mRNA and protein were high. In the model group. In the improvement of NF-κBp65 and PPAR-γ gene and protein expression in rat colonic mucosa, the high-dose group and the middle-dose group were significantly better than the low-dose group. Conclusion:Yuchang suppository can significantly improve the symptoms and histopathology of UC model rats. The mechanism may be through activation of PPARγ, blocking the activation of NF-κB signaling pathway, and down-regulating inflammatory factors such as TNF-α and IL-1β. The expression is such that the inflammatory response is alleviated or eliminated, thereby achieving the therapeutic effect of UC.展开更多
目的研究建立愈肠颗粒中功劳木药材中小檗碱型生物碱高效液相色谱测定方法。方法采用高效液相色谱法,色谱柱：资生堂CAPCELL PAK C18（250mm×4.6mm,5μm）;流动相：乙腈-0.05mol/L磷酸二氢钠溶液（用磷酸调节pH值至3）（28∶72）;...目的研究建立愈肠颗粒中功劳木药材中小檗碱型生物碱高效液相色谱测定方法。方法采用高效液相色谱法,色谱柱：资生堂CAPCELL PAK C18（250mm×4.6mm,5μm）;流动相：乙腈-0.05mol/L磷酸二氢钠溶液（用磷酸调节pH值至3）（28∶72）;流速：1.0ml/min;检测波长：265nm;柱温：室温。结果盐酸巴马汀、盐酸药根碱、盐酸小檗碱分别在0.0354-0.354μg、0.0382-0.382μg、0.0207-0.207μg范围内,浓度与峰面积线性关系良好（r=0.9997,r=0.9998,r=0.9999）。平均回收率分别为：99.8%,100.3%,98.8%,RSD分别为1.7%、1.3%、1.8%。结论本方法简便,可作为愈肠颗粒的含量测定方法 。展开更多
文摘Objective: To investigate the therapeutic effect of Yuchang suppository on experimental ulcerative colitis rats and the effect of PPARγ/NF-KB signaling pathway. Methods: The UC rat model was replicated by 2.4.6-trinitrobenzenesulfonic acid (TNBS)/ethanol method and randomly divided into normal control group, model group, high-dose group of Yuchang suppository, middle dose group , Low-dose group and sulfasalazine group, 8 rats in each group. After 14 days of treatment, the general condition of the rats was observed and the disease activity index was scored. The changes of serum TNF-α, IL-1β and IL-6 levels were detected by ELISA. The colonic mucosal injury index (CMDI) score and colon were observed by colon specimens. Histopathological changes;RT-PCR and Western blot were used to detect the expression of PPARγ and NF-KB genes and proteins in colon tissue. Results: Compared with the normal control group, the DAI and CMDI scores in the model group and the levels of serum TNF-α, IL-1β, IL-6, NF-κB p65 mRNA and protein in colon tissue were significantly increased, PPAR. - γ mRNA and protein expression levels were significantly reduced. The levels of IL-1β, IL-6, TNF-α and the expression of NF-κB p65 mRNA and protein in colon tissue were lower than those in the model group, and the expression levels of PPARγ mRNA and protein were high. In the model group. In the improvement of NF-κBp65 and PPAR-γ gene and protein expression in rat colonic mucosa, the high-dose group and the middle-dose group were significantly better than the low-dose group. Conclusion:Yuchang suppository can significantly improve the symptoms and histopathology of UC model rats. The mechanism may be through activation of PPARγ, blocking the activation of NF-κB signaling pathway, and down-regulating inflammatory factors such as TNF-α and IL-1β. The expression is such that the inflammatory response is alleviated or eliminated, thereby achieving the therapeutic effect of UC.
文摘目的研究建立愈肠颗粒中功劳木药材中小檗碱型生物碱高效液相色谱测定方法。方法采用高效液相色谱法,色谱柱：资生堂CAPCELL PAK C18（250mm×4.6mm,5μm）;流动相：乙腈-0.05mol/L磷酸二氢钠溶液（用磷酸调节pH值至3）（28∶72）;流速：1.0ml/min;检测波长：265nm;柱温：室温。结果盐酸巴马汀、盐酸药根碱、盐酸小檗碱分别在0.0354-0.354μg、0.0382-0.382μg、0.0207-0.207μg范围内,浓度与峰面积线性关系良好（r=0.9997,r=0.9998,r=0.9999）。平均回收率分别为：99.8%,100.3%,98.8%,RSD分别为1.7%、1.3%、1.8%。结论本方法简便,可作为愈肠颗粒的含量测定方法 。
