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基于PacBio SMRT测序技术评估妊娠期糖尿病人的肠道菌群 被引量:10
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作者 舒明月 付爱思 +5 位作者 张洁 陈佳 郭静 丁琼 徐焱成 刘天罡 《微生物学报》 CAS CSCD 北大核心 2019年第9期1823-1839,共17页
【目的】肠道菌群是位于人体肠道内的微生物菌群,其组成与人类多种疾病相关。例如,已有研究表明肠道菌群的变化与妊娠期糖尿病(gestational diabetes mellitus,GDM)的发病密切相关。因此本研究基于PacBio SMRT测序技术评估及比较了不同... 【目的】肠道菌群是位于人体肠道内的微生物菌群,其组成与人类多种疾病相关。例如,已有研究表明肠道菌群的变化与妊娠期糖尿病(gestational diabetes mellitus,GDM)的发病密切相关。因此本研究基于PacBio SMRT测序技术评估及比较了不同民族(汉族和蒙族)及是否患GDM的孕妇的肠道菌群。【方法】本研究利用PacBio SMRT测序技术对97例患有GDM及健康的汉族和蒙族孕妇粪便样本进行了全长16S rRNA测序及分析。【结果】总体来说,处于相同孕期的4组孕妇肠道菌群的组成相似,不同核心菌群展现出不同强弱的相关性。本研究在种的水平上共鉴定到了44个种。在汉族人中,患有妊娠期糖尿病的孕妇肠道菌群中Akkermansia muciniphila菌的相对丰度要显著低于健康孕妇;而在蒙族人中,健康孕妇与GDM孕妇间差异并不明显。在健康对照中发现汉族孕妇肠道菌群中Bacteroides uniformis菌的相对丰度显著高于蒙族孕妇;但在患有GDM组中未找到不同民族分组间的差异。另外,功能预测结果发现四组样本菌群功能组成高度相似,大多数功能基因都与能量代谢有关。汉族GDM患者与健康对照组间没有发现显著差异,但在蒙族GDM患者中发现无机离子运输等功能相对丰度显著高于与蒙族正常孕妇。【结论】在相同的孕期,妊娠期孕妇的核心肠道菌群结构与功能是相对稳定的,而民族差异也不会对妊娠期菌群产生显著性影响。但在四组间可以检测到一些低丰度的差异菌群,如Akkermansia muciniphila,其丰度的变化可能导致了肠道中一些与肠道营养吸收等有关的代谢发生变化,而这些变化可能与妊娠期糖尿病的发生密切相关。本研究将有助于探究肠道菌群在GDM发病机制中的作用。 展开更多
关键词 PacBio SMRT测序技术 妊娠期糖尿病 肠道菌群 微生物多样性 16S RRNA
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Efficacy and safety of chiglitazar,a novel peroxisome proliferatoractivated receptor pan-agonist,in patients with type 2 diabetes:a randomized,double-blind,placebo-controlled,phase 3 trial(CMAP) 被引量:17
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作者 Linong Ji Weihong Song +29 位作者 Hui Fang Wei Li Jianlin Geng Yangang Wang Lian Guo Hanqing Cai Tao Yang Hongmei Li Gangyi Yang Qifu Li Kuanzhi Liu Shuying Li Yanjun Liu Fuyan Shi Xinsheng Li Xin Gao Haoming Tian Qiuhe Ji Qing Su Zhiguang Zhou Wenbo Wang Zunhai Zhou xuejun Li yancheng xu Zhiqiang Ning Haixiang Cao Desi Pan He Yao Xianping Lu Weiping Jia 《Science Bulletin》 SCIE EI CSCD 2021年第15期1571-1580,M0004,共11页
Chiglitazar(Carfloglitazar)is a novel non-thiazolidinedione(TZD)structured peroxisome proliferatoractivated receptor(PPAR)pan-agonist that has shown promising effects on glycemic control and lipid regulation in patien... Chiglitazar(Carfloglitazar)is a novel non-thiazolidinedione(TZD)structured peroxisome proliferatoractivated receptor(PPAR)pan-agonist that has shown promising effects on glycemic control and lipid regulation in patients with type 2 diabetes in previous clinical studies.This randomized phase 3 trial aimed to compare the efficacy and safety of chiglitazar with placebo in patients with type 2 diabetes with insufficient glycemic control by strict diet and exercise alone.Eligible patients were randomly assigned to receive chiglitazar 32 mg(n=167),chiglitazar 48 mg(n=166),or placebo(n=202)once daily.The primary endpoint was the change in glycosylated hemoglobin A_(1c)(HbA_(1c))at week 24 with superiority of chiglitazar over placebo.The results showed that both chiglitazar 32 and 48 mg resulted in significant and clinically meaningful reductions in HbA_(1c),and placebo-adjusted estimated treatment differences at week 24 for chiglitazar 32 and 48 mg were-0.87%(95%confidential interval(CI):-1.10 to-0.65;P<0.0001)and-1.05%(95%CI:-1.29 to-0.81;P<0.0001),respectively.Secondary efficacy parameters including glycemic control,insulin sensitivity and triglyceride reduction were also significantly improved in the chiglitazar groups.The overall frequency of adverse events and study discontinuation attributable to adverse events were similar among the groups.Low incidences of mild edema and body weight gain were reported in the chiglitazar dose groups.The results from this phase 3 trial demonstrated that the PPAR pan-agonist chiglitazar possesses an overall good efficacy and safety profile in patients with type 2 diabetes inadequately controlled with lifestyle interventions,thereby providing adequate supporting evidence for using this PPAR pan-agonist as a treatment option for type 2 diabetes. 展开更多
关键词 Chiglitazar Carfloglitazar PPAR pan-agonist
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