Obiective:To investigate whether"Fuzheng Qingretonglin"decoction can reduce urinary tract damage caused by complex urinary tract infection caused by drug resistant Escherichia coli by regulating Nod-like rec...Obiective:To investigate whether"Fuzheng Qingretonglin"decoction can reduce urinary tract damage caused by complex urinary tract infection caused by drug resistant Escherichia coli by regulating Nod-like receptor pyrin domain3 inflammasome,and to explore the feasibility of this decoction combined with levofloxacin in the treatment of complex urinary tract infection caused by drug resistant bacteria.Methods:SD rats were divided into five groups:sham group,model group,levofloxacin group(Lev group),levofloxacin+Fuzheng Qingre Tonglin decoction group(FZ+lev group),and Fuzheng Qingre Tonglin decoction group(FZQRTL group).After the experiment,urine was taken for bacterial culture to determine the urinary tract infection of rats in each group;HE staining was used to observe the pathological changes of kidney and bladder tissues in rats;The expression of NLRP3 in kidney and bladder tissues was detected by immunohistochemistry;The expression of IL-1βand IL-18 in serum of rats was detected by ELISA;The expressions of NLRP3,ASC and Caspase-1 were detected by Western blotting.Results:The positive rate of urine bacteria culture in the sham group was 0%,the positive rate of urine bacteria culture in the model group was 100%;and the positive rate of urine bacteria culture in the FZ+lev group was 37.50%,which was statistically different from that in the model group(P<0.05).A large number of inflammatory cells were observed in the kidney and bladder tissues of the model group by HE staining,while the number of inflammatory cells in the kidney and bladder tissues of the Lev group and FZQRTL group was significantly reduced compared with that of the model group.The FZ+lev group in the number and structure of inflammatory cells in kidney and bladder were similar to the sham group.The NLRP3 immunohistochemistry of kidney and bladder tissue in FZ+lev groups and FZQRTL groups was significantly different from that in model group(P<0.001).The levels of IL-1βand IL-18 in serum of Lev group,FZQRTL group and FZ+lev group were significantly decreased by ELISA compared with model group(P<0.001).The levels of IL-1βand IL-18 in the FZ+lev groups were significantly lower than in the Lev group and FZQRTL group,and the differences were statistically significant(P<0.05).The protein expressions of NLRP3,ASC and Caspase-1 in the Lev group,FZQRTL group and FZ+lev group were significantly lower than those in the model group(P<0.001).The protein expressions of NLRP3,ASC and Caspase-1 in the FZ+lev groups were significantly lower than in the Lev group and FZQRTL group,and the differences were statistically significant(P<0.05).Conclusions:"Fuzheng Qingretonglin"decoction may have a protective effect on the kidney and bladder of rats with complex urinary tract infection caused by drug-resistant Escherichia coli by inhibiting the activation of NLRP3 inflammatory bodies,and TCM combined with levofloxacin has a better therapeutic effect than TCM or levofloxacin alone.展开更多
目的:慢性阻塞性肺疾病(COPD)是一种以不完全可逆性气流受限为特征的进行性肺疾病,环境和遗传因素参与COPD的发病机制。先前的研究表明GSTs是与COPD相关的重要易感基因,但是GSTM1、GSTT1和GSTP1 Ile(105)Val基因多态性与COPD之间的关联...目的:慢性阻塞性肺疾病(COPD)是一种以不完全可逆性气流受限为特征的进行性肺疾病,环境和遗传因素参与COPD的发病机制。先前的研究表明GSTs是与COPD相关的重要易感基因,但是GSTM1、GSTT1和GSTP1 Ile(105)Val基因多态性与COPD之间的关联仍存在争议,目前认为其研究差异性的主要来源为种族和地域的不同,因此我们基于已发表的关于中国人群的病例对照研究进行此meta分析,以评估GSTM1、GSTT1和GSTP1基因多态性与中国人群COPD易感性的关系。方法:对7大数据库:PubMed、EMBASE、Cochrane图书馆、中国生物医学文献数据库(CBM)、中国知网(CNKI)、万方数据库(WANFANG)和维普数据库(VIP)进行电子搜索,以获取有关GSTM1、GSTT1和GSTP1 Ile(105)Val基因多态性和COPD风险的文献。结果:共纳入21个研究,包括2356例COPD患者和2164例对照。Meta分析结果显示:GSTM1缺失基因型显著增加了中国人群COPD的风险[OR=1.69,95%CI(1.41,2.04),P<0.05];GSTT1缺失基因型与中国人群COPD的风险无显著关系[OR=1.38,95%CI(1.00,1.89),P=0.05];而GSTM1/GSTT1组合缺失基因型与中国人群COPD风险增加有关[OR=1.75,95%CI(1.12,2.73),P=0.01];GSTP1 Ile(105)Val基因多态性与中国人群COPD的风险无显著相关性,其等位基因模型(G vs A)OR=1.21,95%CI(0.87,1.68),P<0.05;其显性模型(GG+AG vs AA)OR=1.03,95%CI(0.75,1.42),P<0.05。结论:基于最新证据的meta分析,GSTM1缺失基因型、GSTM1/GSTT1组合缺失基因型可能是中国人群COPD发生的危险因素,但仍需更多的大样本的病例对照研究来进一步验证。展开更多
基金Luzhou People's Government-Science and technology Strategic Cooperation project of Southwest Medical University(2017LZXNYD-T09)。
文摘Obiective:To investigate whether"Fuzheng Qingretonglin"decoction can reduce urinary tract damage caused by complex urinary tract infection caused by drug resistant Escherichia coli by regulating Nod-like receptor pyrin domain3 inflammasome,and to explore the feasibility of this decoction combined with levofloxacin in the treatment of complex urinary tract infection caused by drug resistant bacteria.Methods:SD rats were divided into five groups:sham group,model group,levofloxacin group(Lev group),levofloxacin+Fuzheng Qingre Tonglin decoction group(FZ+lev group),and Fuzheng Qingre Tonglin decoction group(FZQRTL group).After the experiment,urine was taken for bacterial culture to determine the urinary tract infection of rats in each group;HE staining was used to observe the pathological changes of kidney and bladder tissues in rats;The expression of NLRP3 in kidney and bladder tissues was detected by immunohistochemistry;The expression of IL-1βand IL-18 in serum of rats was detected by ELISA;The expressions of NLRP3,ASC and Caspase-1 were detected by Western blotting.Results:The positive rate of urine bacteria culture in the sham group was 0%,the positive rate of urine bacteria culture in the model group was 100%;and the positive rate of urine bacteria culture in the FZ+lev group was 37.50%,which was statistically different from that in the model group(P<0.05).A large number of inflammatory cells were observed in the kidney and bladder tissues of the model group by HE staining,while the number of inflammatory cells in the kidney and bladder tissues of the Lev group and FZQRTL group was significantly reduced compared with that of the model group.The FZ+lev group in the number and structure of inflammatory cells in kidney and bladder were similar to the sham group.The NLRP3 immunohistochemistry of kidney and bladder tissue in FZ+lev groups and FZQRTL groups was significantly different from that in model group(P<0.001).The levels of IL-1βand IL-18 in serum of Lev group,FZQRTL group and FZ+lev group were significantly decreased by ELISA compared with model group(P<0.001).The levels of IL-1βand IL-18 in the FZ+lev groups were significantly lower than in the Lev group and FZQRTL group,and the differences were statistically significant(P<0.05).The protein expressions of NLRP3,ASC and Caspase-1 in the Lev group,FZQRTL group and FZ+lev group were significantly lower than those in the model group(P<0.001).The protein expressions of NLRP3,ASC and Caspase-1 in the FZ+lev groups were significantly lower than in the Lev group and FZQRTL group,and the differences were statistically significant(P<0.05).Conclusions:"Fuzheng Qingretonglin"decoction may have a protective effect on the kidney and bladder of rats with complex urinary tract infection caused by drug-resistant Escherichia coli by inhibiting the activation of NLRP3 inflammatory bodies,and TCM combined with levofloxacin has a better therapeutic effect than TCM or levofloxacin alone.
文摘目的:慢性阻塞性肺疾病(COPD)是一种以不完全可逆性气流受限为特征的进行性肺疾病,环境和遗传因素参与COPD的发病机制。先前的研究表明GSTs是与COPD相关的重要易感基因,但是GSTM1、GSTT1和GSTP1 Ile(105)Val基因多态性与COPD之间的关联仍存在争议,目前认为其研究差异性的主要来源为种族和地域的不同,因此我们基于已发表的关于中国人群的病例对照研究进行此meta分析,以评估GSTM1、GSTT1和GSTP1基因多态性与中国人群COPD易感性的关系。方法:对7大数据库:PubMed、EMBASE、Cochrane图书馆、中国生物医学文献数据库(CBM)、中国知网(CNKI)、万方数据库(WANFANG)和维普数据库(VIP)进行电子搜索,以获取有关GSTM1、GSTT1和GSTP1 Ile(105)Val基因多态性和COPD风险的文献。结果:共纳入21个研究,包括2356例COPD患者和2164例对照。Meta分析结果显示:GSTM1缺失基因型显著增加了中国人群COPD的风险[OR=1.69,95%CI(1.41,2.04),P<0.05];GSTT1缺失基因型与中国人群COPD的风险无显著关系[OR=1.38,95%CI(1.00,1.89),P=0.05];而GSTM1/GSTT1组合缺失基因型与中国人群COPD风险增加有关[OR=1.75,95%CI(1.12,2.73),P=0.01];GSTP1 Ile(105)Val基因多态性与中国人群COPD的风险无显著相关性,其等位基因模型(G vs A)OR=1.21,95%CI(0.87,1.68),P<0.05;其显性模型(GG+AG vs AA)OR=1.03,95%CI(0.75,1.42),P<0.05。结论:基于最新证据的meta分析,GSTM1缺失基因型、GSTM1/GSTT1组合缺失基因型可能是中国人群COPD发生的危险因素,但仍需更多的大样本的病例对照研究来进一步验证。
