目的 基于转录组学与网络药理学方法探讨防己黄芪汤治疗肾病综合征的作用机制.方法 收集网络药理学和转录组学的共同靶点,进行GO/KEGG功能富集分析.构建蛋白质-蛋白质相互作用(PPI)并进行网络拓扑分析,确定潜在核心靶点.构建通路-靶点网络图,确定发挥关键作用的信号通路.采用qPCR、Western blot法和免疫荧光染色验证大鼠肾脏组织中核心靶点的mRNA和蛋白表达水平.结果 PPI分析得到7个潜在核心靶点AKT1、AMPK、CPT1B、NF-κB1、P53、TGF-β1和TLR4,主要信号通路为AMPK信号通路、PI3K-Akt信号通路、PPAR信号通路、NF-κB信号通路、TGF-β信号通路、P53信号通路、MAPK信号通路、JAK-STAT信号通路和FoxO信号通路.经动物体内实验验证,防己黄芪汤显著下调AKT1、CPT1B、NF-κB1、P53、TGF-β1、TLR4的mRNA和蛋白表达水平(P<0.05),上调AMPK的mRNA和蛋白表达水平(P<0.05).结论 从网络药理学和转录组学角度初步阐明了防己黄芪汤治疗肾病综合征多成分、多靶点、多途径的整体调节特点,可为后续的药理学研究和临床应用提供依据与参考.

Objective:To study the regulatory effect of Wumen-Yiji powder on 5-hydroxytryptamine (5-HT) signal transduction system in intestine and hypothalamus of diarrhea irritable bowel syndrome (IBS-D) model rats. Methods:Sixty male SD rats were randomly divided into blank group (10 rats) and diarrhea irritable bowel syndrome group (50 rats). The diarrhea irritable bowel syndrome group formed the diarrhea irritable bowel syndrome model after 2 weeks of senna leaf gavage and restraint stress. They were randomly divided into model group, deshute group (1.5 mg/kg), low, medium and high dose group of Wumen-Yiji San (6, 12, 24 g/kg), with 10 rats in each group. After continuous administration for 2 weeks, the contents of 5-HT in serum, colon and hypothalamus were detected by ELISA; HE staining was used to observe the pathological changes of colon in each group. The protein and mRNA levels of tryptophan hydroxylase 1 (TPH-1), serotonin receptor 3 (5-HT3R), serotonin receptor 4 (5-HT4R), serotonin transporter (SERT) in colon and hypothalamus were detected by Western blot and RT-PCR, respectively. Results:Compared with the model group, the pathological morphology of colon in each treatment group was improved. Compared with the model group, the level of 5-HT in serum and colon significantly decreased ( P<0.05), and the level of 5-HT in hypothalamus of rats in the low, medium, high dose group of Wumen-Yiji San significantly increased ( P<0.05). The expression of TPH-1, 5-HT3R and 5-HT4R protein significantly decreased ( P<0.05), and the expression of SERT protein in the medium, high dose group of Wumen-Yiji San significantly increased ( P<0.05). The expression of TPH-1, 5-HT3R and 5-HT4R protein in hypothalamus increased ( P<0.05), and the expression of SERT protein in the high dose group of Wumen-Yiji San significantly decreased ( P<0.05). The mRNA levels of TPH-1 (4.778 ± 0.604, 3.278 ± 0.668, 1.670 ± 0.361 vs. 6.877 ± 0.148), 5-HT3R (3.807 ± 0.463, 2.697 ± 0.455, 1.132 ± 0.136 vs. 6.322 ± 0.778), 5-HT4R (4.521 ± 0.234, 2.801 ± 0.351, 1.331 ± 0.142 vs. 6.741 ± 0.293) in colon tissue of low, medium and high dose groups of Wumen-Yiji San decreased ( P<0.05). The level of 5-HT4R mRNA (0.616 ± 0.208, 0.726 ± 0.226 vs. 0.521 ± 0.062) increased ( P<0.05), and the level of SERT mRNA (1.563 ± 1.023 vs. 2.612 ± 1.035) in medium, high dose group of Wumen-Yiji San decreased ( P<0.05). Conclusion:The result showed that Wumen-Yiji San could regulate the expression of 5-HT signaling system relating proteins and mRNA in the colon and hypothalamus of IBS-D rats within a certain dose range, so as to improve the symptoms of IBS-D.

目的:探究吴门调脂颗粒方对非酒精性脂肪性肝病(NAFLD)大鼠肝组织核转录因子NF-κB(NF-κB)p65、P38丝裂原活化蛋白激酶(MAPK)蛋白表达的影响.方法:选用SD大鼠50只,随机分为空白组、模型组、西药组(灌服80mg/kg/d多烯磷脂酰胆碱)和中药低、高剂量组(灌服4g生药/kg/d、8g生药/kg/d剂量的吴门调脂颗粒方),每组10只大鼠.采用高脂饲料喂养8周复制大鼠脂肪肝实验动物模型后开始给药4周,空白组和模型组给予同体积生理盐水.给药结束后以对应的试剂盒检测血清甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)、还原型谷胱甘肽(GSH)、血清白介素-1β(IL-1β)、肿瘤坏死因子-α(TNF-α)、白介素-6(IL-6),HE染色观察脊髓形态变化,应用免疫组化法(IHC)检测肝组织NF-κBp65、P38MAPK蛋白的表达.结果:吴门调脂颗粒方干预NAFLD大鼠4W后.与模型组比较,吴门调脂颗粒方大剂量血清TG、LDL-C、AST、IL-1β、IL-6明显下降(P＜0.05或P＜0.01或P＜0.001)且GSH明显升高(P＜0.05),肝组织NF-κBp65过表达明显下调(P＜0.05),肝组织脂肪变性及炎症浸润情况亦有不同程度的改善.总体优于吴门调脂颗粒方小剂量且与西药组情况相当.结论:吴门调脂颗粒方能明显减轻NAFLD大鼠的病情,并推测与抑制大鼠肝组织NF-κBp65蛋白过表达密切相关.

小儿腹泻的病因多由感受风、寒、暑、湿之邪,寒湿困脾,脾失健运;或内伤乳食,损伤脾胃或脾胃虚弱水谷不能运化,下趋力弱而致,可分有感冒伤食泻、肾虚泻、惊泻、热泻、寒泻、脾肾阳虚泻、湿热伤阴泻和脾虚泻。根据辨证分型,采用清、消、补、泻和循径取穴等推拿疗法治疗,常取得良好疗效。