采用蛋白质组学寻找可能与支气管哮喘(bronchial asthma, BA)致病相关的关键蛋白。首先收集健康成年人与哮喘患者的血清样本,运用去除高丰度结构和非特异性蛋白质后的蛋白定量质谱(Tandem Mass TagTM,TMT),分别获得哮喘患者与健康成年...采用蛋白质组学寻找可能与支气管哮喘(bronchial asthma, BA)致病相关的关键蛋白。首先收集健康成年人与哮喘患者的血清样本,运用去除高丰度结构和非特异性蛋白质后的蛋白定量质谱(Tandem Mass TagTM,TMT),分别获得哮喘患者与健康成年人差异表达蛋白,并进行GO富集和KEGG富集分析,通过蛋白相互作用(PPI)网络分析筛选出哮喘组中的核心蛋白。然后将核心蛋白在3例支气管哮喘患者和3例健康成年人中进行蛋白印迹(Western blot)验证。通过蛋白质组学筛查共鉴定出778个差异表达蛋白,其中32个蛋白质包含定量信息(18个蛋白表达上调、14个蛋白表达下调);KEGG富集分析具有明显表达差异的信号通路有28条。PPI结果显示有10个蛋白(GDN、1433Z、VWF、HEMO、CERU、A1AT、TSP1、G3P、IBP7、KPYM)可能在支气管哮喘的发病机制中扮演重要作用。而相对于健康成年人,支气管哮喘患者血清中SLC25A4、SVEP1和KRT25蛋白表达水平升高,差异均具有统计学意义(P<0.05)。因此,推测多种免疫信号通路及差异表达蛋白在BA的发病机制中扮演了重要作用,为BA的治疗靶点研究进一步提供了方向。展开更多
OBJECTIVE:To observe the influence of different moxibustion durations on hypothalamic pro-opiomelanocortin(POMC)and prodynorphin(PDYN)mRNA expressions and plasmaβ-endorphin(β-EP)content in rheumatoid arthritis(RA)ra...OBJECTIVE:To observe the influence of different moxibustion durations on hypothalamic pro-opiomelanocortin(POMC)and prodynorphin(PDYN)mRNA expressions and plasmaβ-endorphin(β-EP)content in rheumatoid arthritis(RA)rats,to understand the mechanism of moxibustion analgesia and its dose-effect relationship.METHODS:Twelve male Wistar rats were randomly selected from 48 male Wistar rats as a normal control group.The RA model was created by raising rats in a windy(blowing with electric fan),cold(6℃±2℃),and wet(80%-90%humidity)environment for 20 days,12 h each day.This was followed byinjectionofFreund'scompleteadjuvant(0.15 mL)into the ankle.Then,rats were randomly divided into a model group,moxibustion groupⅠ,and moxibustion groupⅡ,with 12 rats in each group.In moxibustion groupsⅠandⅡ,moxibustion was given at Shenshu(BL 23)and Zusanli(ST 36)for 20and 40 min,respectively,once daily for 15 days.Hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content were determined.RESULTS:Compared with the normal group,the pressure pain threshold decreased,while the hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content increased in the moxibustion groups(P<0.01).Compared with the model group,the pressure pain threshold,hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content in the moxibustion groups increased significantly(P<0.01).Compared the moxibustion groupⅠ,the pain threshold,hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content in moxibustion groupⅡsignificantly increased(P<0.01).CONCLUSION:Moxibustion has an analgesic effect and increases hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content inRArats.TheanalgesiceffectinmoxibustiongroupⅡisbetterthanthatinmoxibustiongroupⅠ.展开更多
基金Supported by 973 Program:the Research of Law and Principle of Moxibustion(No.2009CB522905)
文摘OBJECTIVE:To observe the influence of different moxibustion durations on hypothalamic pro-opiomelanocortin(POMC)and prodynorphin(PDYN)mRNA expressions and plasmaβ-endorphin(β-EP)content in rheumatoid arthritis(RA)rats,to understand the mechanism of moxibustion analgesia and its dose-effect relationship.METHODS:Twelve male Wistar rats were randomly selected from 48 male Wistar rats as a normal control group.The RA model was created by raising rats in a windy(blowing with electric fan),cold(6℃±2℃),and wet(80%-90%humidity)environment for 20 days,12 h each day.This was followed byinjectionofFreund'scompleteadjuvant(0.15 mL)into the ankle.Then,rats were randomly divided into a model group,moxibustion groupⅠ,and moxibustion groupⅡ,with 12 rats in each group.In moxibustion groupsⅠandⅡ,moxibustion was given at Shenshu(BL 23)and Zusanli(ST 36)for 20and 40 min,respectively,once daily for 15 days.Hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content were determined.RESULTS:Compared with the normal group,the pressure pain threshold decreased,while the hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content increased in the moxibustion groups(P<0.01).Compared with the model group,the pressure pain threshold,hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content in the moxibustion groups increased significantly(P<0.01).Compared the moxibustion groupⅠ,the pain threshold,hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content in moxibustion groupⅡsignificantly increased(P<0.01).CONCLUSION:Moxibustion has an analgesic effect and increases hypothalamic POMC and PDYN mRNA expression levels and plasmaβ-EP content inRArats.TheanalgesiceffectinmoxibustiongroupⅡisbetterthanthatinmoxibustiongroupⅠ.
