基于网络药理学的济脉通片降压机制研究

目的 采用网络药理学阐明济脉通片多成分-多靶点-多途径的作用理念，为进一步研究济脉通片降压药效物质基础和机制提供一定理论参考。方法 通过TCMSP数据库，结合口服利用度（≥ 30%）和类药性分析（≥ 0.18）参数，筛选济脉通片的活性成分；通过Drugbank和TCMSP数据库进行靶点预测分析；通过GENCARD数据库筛选出高血压疾病相关基因；结合DAVID和KEGG数据库进行GO分析和通路分析；使用Cystoscope软件构建"化合物-靶点-作用通路"网络图。结果 经筛选后得到济脉通片的33个化合物，148个潜在靶基因并映射到了223条信号通路，其中31条信号通路与高血压的发生发展密切相关，其中AGE-RAGE signaling pathway in diabetic complications、PI3K-Akt signaling pathway、TNFsignaling pathway、Adrenergic signaling in cardiomyocytes和Focal adhesion为重要的通路枢纽。结论 济脉通片主要通过多成分、多靶点、多通路调节血管内皮功能、炎症反应、钙钠离子转运、糖脂代谢等参与血管舒张、改善炎症、调节机体代谢、调节离子转运等而产生降压作用。     

五味子乙素对2型糖尿病大鼠氧化应激和炎症反应的影响

目的：本文主要研究五味子乙素对2型糖尿病大鼠糖脂代谢、氧化应激和炎症反应的影响。方法：采用腹腔注射链脲佐菌素及高糖高脂饮食构建2型糖尿病大鼠模型;给药组分别给予Sch B 40、80 、120mg/kg灌胃;对照组和模型组给予 2 mL/d 生理盐水灌胃,干预 8 周;称重法检测大鼠体重变化,全自动化学分析仪检测FBG、TC、TG、HDL和LDL含量,HE染色检测肾损伤,Western Blot检测肾组织Caspase-3、Caspase-9、Bax、p-ACC、p-AMPK和p-LKB1表达,试剂盒检测血清MDA 和 SOD 的水平,ELISA检测IL-6、IL-1β、IL-18的含量。结果：与Model组大鼠相比,给药组大鼠体重明显增多,FBG、TC、TG和LDL含量明显减少,HDL含量明显增多,损伤程度明显减轻,Caspase-3、Caspase-9和Bax的表达明显下调,MDA含量明显减少、SOD活性明显增强,IL-6、IL-1?和IL-18 的含量明显减少,p-ACC、p-AMPK和p-LKB1表达明显上调（P<0.01）。结论：五味子乙素能够改善2型糖尿病大鼠体重、糖脂代谢、肾损伤、氧化应激和炎症反应,并激活糖尿病大鼠的AMPK- LKB1信号转导通路。     

妊娠期糖尿病患者血清半胱氨酸、脂肪因子与糖脂代谢及炎症反应的相关性分析

目的探讨妊娠期糖尿病患者血清半胱氨酸、脂肪因子与糖脂代谢及炎症反应的相关性。方法选取50例妊娠期糖尿病患者为病例组,同期健康体检的50例正常孕妇作为对照组。检测两组血清半胱氨酸(Hcy)、脂肪因子趋化素和瘦素水平;检测两组胰岛功能、糖脂代谢标志物及炎症因子水平。 结果病例组血清Hcy、趋化素及瘦素水平显著高于对照组;胰岛功能标志物空腹胰岛素(FINS)、餐后2 h胰岛素(2hINS)、胰岛素抵抗指数(HOMA-IR)显著高于对照组;糖脂代谢标志物糖化血红蛋白(HbAlc)、空腹血糖(FPG)、总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDLC)水平均显著高于对照组,高密度脂蛋白胆固醇(HDLC)水平低于对照组(P＜0.05)。 Pearson相关性分析结果显示,病例组血清Hcy、趋化素、瘦素与FINS、2hINS、HOMA-IR、HbAlc、FPG、TC、TG、LDLC、CRP、IL-6、TNF-α水平呈正相关(P＜0.05),与HDLC水平呈负相关(P＜0.05)。结论妊娠期糖尿病患者血清Hcy和脂肪因子与糖脂代谢紊乱以及慢性炎症反应密切相关,可能参与了妊娠期糖尿病的发生与发展。     

Triazole-Linked Glycolipids Enhance the Susceptibility of MRSA to β-Lactam Antibiotics

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