Effects of berberine on IKV , IKCa , ICa-L of guinea pig colonic smooth muscle cells were studied by patch clamp technique. Effects of berberine on [Ca2+]i of guinea pig colonic smooth muscle cells were studied by Fura 2-AM fluorescence technique. Effects of berberine on guinea pig colonic smooth muscle contraction were also studied.It's showed that 10μM ~100μM berberine can inhibit IKV , IKCa , ICa-L of guinea pig colonic smooth muscle cells significantly, berberine can inhibit kcl,Ach, CPA induced [Ca2+]i increase.Berberine can significantly inhibit contraction of longitude colonic smooth muscle and circuit smooth muscle on its extent ,but no significant inhibition effect on its frequency.All above clarified the mechanism of berberine cure motility diarrhea,it's significative for further use of berberine..keywords:Berberine; Patch clamp; Colonic smooth muscle cells
本项目拟使用膜片钳技术研究黄连素对豚鼠结肠平滑肌细胞膜钙和钾通道电流以及对乙酰胆碱效应的影响,探讨黄连素抑制肠道运动与肠道平滑肌细胞膜钙、钾离子通道的关系,从而阐明黄连素治疗运动性腹泄的机制,为进一步开发黄连素的临床药用价值奠定理论基础.
{{i.achievement_title}}
数据更新时间:2023-05-31
涡度相关技术及其在陆地生态系统通量研究中的应用
硬件木马:关键问题研究进展及新动向
端壁抽吸控制下攻角对压气机叶栅叶尖 泄漏流动的影响
基于公众情感倾向的主题公园评价研究——以哈尔滨市伏尔加庄园为例
结核性胸膜炎分子及生化免疫学诊断研究进展
高血压患者血管平滑肌大电导钙激活钾通道电流改变与分子结构改变相互关系研究
钙激活的大电流钾离子通道β1亚基影响慢性肾脏病进展的机制探讨
大鼠房室结细胞钙、钾离子通道电流的电生理学研究
冠状动脉平滑肌钙激活钾通道活动的电生理特性及其调控