首页|基于SCF/C-kit通路探讨三焦针法对腹泻型肠易激综合征大鼠的影响

基于SCF/C-kit通路探讨三焦针法对腹泻型肠易激综合征大鼠的影响

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目的 观察三焦针法对腹泻型肠易激综合征(irritable bowel syndrome with diarrhea,IBS-D)大鼠胃肠动力异常及结肠组织干细胞因子(stem cell factor,SCF)、酪氨酸激酶受体(tyrosine kinase receptor,C-kit)mRNA和蛋白表达的影响,探讨三焦针法治疗IBS-D的作用机制.方法 wistar雄性大鼠随机分为空白组、模型组、西药组和三焦组,每组6只.除空白组外,其余各组采用"冰醋酸灌肠+束缚应激"建立IBS-D大鼠模型.西药组予匹维溴胺灌胃(15 mg/kg),三焦组针刺膻中、中脘、气海、血海(双侧)及足三里(双侧),诸穴行捻转补法30秒,1次/d,均治疗14天.观察大鼠一般状态;测定体质量、旷场实验(大鼠横向运动和纵向运动)、稀便率、腹壁撤退反射(abdominal retraction reflex,AWR)3 分阈值时注水量;RT-PCR 法、Western blot 法检测结肠组织SCF、C-kit mRNA及蛋白表达.结果 与空白组相比,IBS-D模型大鼠一般状态较差,体质量显著降低(P<0.01),旷场实验检测横向运动距离与纵向运动次数显著降低(P<0.01),稀便率显著增高(P<0.01),AWR3分时注水量显著降低(P<0.01),结肠组织中SCF、C-kit mRNA及蛋白表达水平均显著升高(P<0.01).与模型组比较,西药组、三焦组大鼠体质量显著升高(P<0.01,P<0.05),横向运动距离与纵向运动次数均显著升高(P<0.05,P<0.01),稀便率显著下调(P<0.01),AWR3分时注水量显著提升(P<0.01),三焦组大鼠结肠组织中SCF、C-kit mRNA及蛋白水平表达均显著降低(P<0.01),而西药组SCF、C-kit mRNA及蛋白表达无统计学意义(P>0.05).结论 三焦针法可改善IBS-D大鼠症状,可能是与调节结肠组织中SCF、C-kit mRNA及蛋白表达水平有关.
Exploring the effect of Sanjiao acupuncture on diarrheal irritable bowel syndrome rats based on SCF/C-kit pathway
Objective To observe the effects of Sanjiao acupuncture on the abnormal gastrointestinal dynamics and the expression of SCF and C-kit mRNA and protein in colon tissue of Irritable bowel syndrome with diarrhea(IBS-D)rats,and to explore the mechanism of action of Sanjiao acupuncture in the treatment of IBS-D.Methods Wistar male rats were randomly divided into blank group,model group,Western medicine group and Sanjiao group,6 rats in each group.Except for the blank group,all the other groups were treated with"glacial acetic acid enema+restraint stress"to establish the IBS-D rat model.The rats were treated for 14 days.The general status of the rats was observed;body mass,open field test(lateral and longitudinal movements of rats),faeces,AWR3 time-lapse water injection,Real Time-PCR,Western blot,and the number of rats were measured.The method of PCR,Western blot were used to detect the levels of SCF,C-kit mRNA and protein expression in colonic tissue.Results Compared with the blank group,the general condition of IBS-D rats was poorer,body mass was significantly lower(P<0.01),the distance of lateral movement and the number of longitudinal movements were significantly lower(P<0.01),rate of faeces was significantly higher(P<0.01),AWR3 water injection was significantly lower(P<0.01)and SCF,C-kit mRNA and protein expression levels in colonic tissues were significantly higher(P<0.01),and protein expression levels were significantly increased in colon tissue(P<0.01).Compared with the model group,the body mass of the rats in the Western medicine group and the Sanjiao group was significantly higher(P<0.01,P<0.05),the distance of lateral movement and the number of lon-gitudinal movements were significantly higher(P<0.05,P<0.01),the rate of faeces was significantly down-regulated(P<0.01),the AWR3 time-lapse water injection was significantly higher(P<0.01),and the expression of SCF,C-kit and protein levels in the colon tissue of the rats in the Sanjiao group were significantly higher(P<0.01),mRNA and protein level expression were significantly decreased(P<0.01),while SCF,C-kit mRNA and protein expression in the Western medicine group were not statistically significant(P>0.05).Conclusion Sanjiao needle method can improve the symptoms of IBS-D rats,which may be related to the regulation of SCF,C-kit mRNA and protein expression levels in colon tissue.

IBS-DSanjiao acupunctureSCF/C-kit pathwaygastrointestinal dynamics

尚雪梅、朱洲、潘莉、唐徐韵、宋光仙、石丽杉、程敏、杨孝芳

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550025 贵阳,贵州中医药大学针灸推拿学院

腹泻型肠易激综合征 三焦针法 SCF/C-kit通路 胃肠动力

贵阳中医学院学术新苗培养及创新探索专项(2017)贵阳中医学院学术新苗培养及创新探索专项(2017)

黔科合平台人才[2017]5735号-34黔科合平台人才[2017]5735号-35

2024

环球中医药
中华国际医学交流基金会

环球中医药

CSTPCD
影响因子:1.553
ISSN:1674-1749
年,卷(期):2024.17(4)
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