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JCEM:维生素D对于成人囊性纤维化患者肠道菌群的影响

2017-11-20 MedSci MedSci原创

众多周知肠道菌群紊乱可能会加重囊性纤维化(CF)的严重程度,而维生素D缺乏又是CF患者常见的共发病,可能会影响肠道菌群的组成。近日在JCEM上发表的一篇文章则比较了维生素D充足和不足的CF患者的菌群,并评估了每周高剂量维生素D3的补充方案对于维生素D缺乏(25(OH)D<30ng/ml)的CF患者的肠道和呼吸道微生物的影响。

众多周知肠道菌群紊乱可能会加重囊性纤维化(CF)的严重程度,而维生素D缺乏又是CF患者常见的共发病,可能会影响肠道菌群的组成。近日在JCEM上发表的一篇文章则比较了维生素D充足和不足的CF患者的菌群,并评估了每周高剂量维生素D3的补充方案对于维生素D缺乏(25(OH)D<30ng/ml)的CF患者的肠道和呼吸道微生物的影响。

该研究共纳入41例CF患者,并将其分为两组--维生素D不足(n=23)和维生素D足够(n=18)。维生素D不足的患者随机接受每周50000IU的维生素D3或者安慰剂,共12周。在干预前后收集痰和粪便的标本,使用Illumina Miseq技术测序16S rRNA基因。

基于维生素D状态不同的肠道菌群其差异主要在变形菌纲,其含有大量的潜在致病菌,而维生素D缺乏组却含量丰富。PCoA分析表明在安慰剂或维生素D3治疗12周之后的维生素D缺乏的患者其肠道菌群出现不同(Permanova=0.024),维生素D3治疗组的患者乳球菌丰富,而安慰剂组患者vellionella和erysipelotrichacea显着富集。

这项探索性研究表明,维生素D缺乏与微生物成分的改变有关,它们可能促进炎症,而补充维生素D有可能影响微生物的组成。有待进一步研究来确定维生素D对于CF患者微生物群的临床获益的影响。

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    2018-07-04 smallant2015
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    2018-04-30 achengzhao
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    2018-09-14 wolongzxh
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