Microbiota supplementation with Bifidobacterium and Lactobacillus modifies the preterm infant gut microbiota and metabolome

Microbiota supplementation with Bifidobacterium and Lactobacillus modifies the preterm infant gut microbiota and metabolome
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补充双歧杆菌和乳酸菌可改变早产儿肠道微生物群和代谢组

DOI:
10.1101/698092
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发表时间:
2019
期刊:
--
影响因子:
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通讯作者:
Alcon-Giner C
Alcon-Giner C
中科院分区:
--
文献类型:
--
作者:
Alcon-Giner C

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补充生命早期微生物群成员作为“益生菌”越来越多地用于有益地操纵早产婴儿肠道微生物群的尝试。我们进行了一项大型观察性纵向研究,包括两组早产儿:101名口服补充双歧杆菌和乳酸杆菌的婴儿(Bif/Lacto)和133名未补充的婴儿(对照组),年龄,性别和分娩方式相匹配。粪便样本(n = 592)的16 S rRNA基因谱显示Bif/Lacto组中双歧杆菌占优势,致病菌丰度较低。代谢组学分析显示,与对照组相比,Bif/Lacto组的粪便乙酸盐和乳酸盐较高,粪便pH值较低。粪便乙酸盐与双歧杆菌的相对丰度呈正相关,这与双歧杆菌菌株将人乳低聚糖代谢为乙酸盐的能力一致。这项研究表明,微生物群补充剂与以细菌为主的早产儿微生物群和胃肠道环境更接近于足月婴儿。
Supplementation with members of the early-life microbiota as "probiotics" is increasingly used in attempts to beneficially manipulate the preterm infant gut microbiota. We performed a large observational longitudinal study comprising two preterm groups: 101 infants orally supplemented withBifidobacteriumandLactobacillus(Bif/Lacto) and 133 infants non-supplemented (control) matched by age, sex, and delivery method. 16S rRNA gene profiling on fecal samples (n = 592) showed a predominance ofBifidobacteriumand a lower abundance of pathobionts in the Bif/Lacto group. Metabolomic analysis showed higher fecal acetate and lactate and a lower fecal pH in the Bif/Lacto group compared to the control group. Fecal acetate positively correlated with relative abundance ofBifidobacterium,consistent with the ability of the supplementedBifidobacteriumstrain to metabolize human milk oligosaccharides into acetate. This study demonstrates that microbiota supplementation is associated with aBifidobacterium-dominated preterm microbiota and gastrointestinal environment more closely resembling that of full-term infants.
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发表时间: 2011-01-27
期刊: NATURE
影响因子: 64.8
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DOI: --
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