GUT:母体IBD对后代肠道微生物组成的影响

2019-04-30 MedSci MedSci原创

研究认为,妊娠期母亲IBD导致肠道微生物组成异常,并对婴儿粪便中细菌的多样性和丰富性造成影响

产前和早期的细菌定植被认为在免疫系统的形成过程中起着重要作用,此外有证据表明早期微生物暴露与后期IBD风险相关。近日研究人员就母体IBD对妊娠期微生物组分以及后代微生物群的影响进行了考察。

研究人员前瞻性地研究了有或没有IBD孕妇及其婴儿在多个时间点的微生物群多样性和分类。评估了母亲IBD诊断、分娩方式、抗生素使用和喂养行为对后代早期微生物组分的影响。为了评估IBD相关的母婴微生物群对肠道免疫系统的影响,研究人员用IBD母体及新出生90天婴儿各自的粪便对无菌小鼠(GFM)进行接种,并描述小鼠肠道适应性和先天性免疫细胞群变化。

与对照组妇女及其婴儿相比,患有IBD孕妇及其后代的细菌多样性降低,细菌组成也有所改变。母亲IBD是婴儿出生后7、14、30、60和90天肠道微生物多样性的主要预测因子。IBD母亲的婴儿,肠道 γ变形菌纲丰度增加,双歧杆菌减少。粪便接种GFM后,小鼠结肠内微生物多样性显著降低,记忆B细胞和调节性T细胞数量减少。

研究认为,妊娠期母亲IBD导致肠道微生物组成异常,并对婴儿粪便中细菌的多样性和丰富性造成影响。

原始出处:


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    2019-05-03 SCI我的梦

    谢谢分享

    0

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    2019-05-02 bnurmamat
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    2019-04-30 SCI我的梦

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