Diabetes Care:二甲双胍是如何改变肠道菌群的?

2016-11-15 MedSci MedSci原创

最近的研究表明,二甲双胍对糖代谢的作用可能是微生物介导的。我们研究了2型糖尿病/二甲双胍和肠道菌群之间的关联。在前人研究的基础上,我们推测,二甲双胍与能产生高水平的短链脂肪酸(SCFA)和粘蛋白降解的菌群有关。 研究纳入459例患者,目前的分析集中在28名确诊为糖尿病的患者中,其中14例服用二甲双胍,还有84例患者没有糖尿病,在性别、年龄和BMI上与糖尿病患者匹配。 我们测量了人口信息

最近的研究表明,二甲双胍对糖代谢的作用可能是微生物介导的。我们研究了2型糖尿病/二甲双胍和肠道菌群之间的关联。在前人研究的基础上,我们推测,二甲双胍与能产生高水平的短链脂肪酸(SCFA)和粘蛋白降解的菌群有关。

研究纳入459例患者,目前的分析集中在28名确诊为糖尿病的患者中,其中14例服用二甲双胍,还有84例患者没有糖尿病,在性别、年龄和BMI上与糖尿病患者匹配。

我们测量了人口信息、人体测量学、血液生化指标,收集粪便标本进行16S rRNA基因测序,分析肠道菌群的组成和结构。

我们发现二甲双胍可以影响糖尿病与肠道菌群之间的关联。与非糖尿病参与者比较,使用二甲双胍的糖尿病患者其某种肠道细菌(Akkermansia muciniphila)、粘蛋白降解的微生物群、一些产生SCFAs的肠道菌群的相对丰度较高,如丁酸弧菌属、双歧杆菌、巨型球菌属等。与非糖尿病参与者比较,没有使用二甲双胍的糖尿病患者,其Clostridiaceae 02d06和独特的普氏菌的相对丰度较高,而酪黄肠球菌的相对丰度较低。

我们的研究结果支持这一假设,二甲双胍通过粘蛋白降解以及短链脂肪酸产生菌的富集,改变了肠道菌群。未来的研究是必要的,以确定这些变化是否介导了二甲双胍的降糖和抗炎性能。

原始出处:

Jacobo de la Cuesta-Zuluaga,et al.Metformin Is Associated With Higher Relative Abundance of Mucin-Degrading Akkermansia muciniphila and Several Short-Chain Fatty Acid–Producing Microbiota in the Gut.Diabetes Care 2016 Oct;

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