Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands.
Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
Sci Rep. 2023 Jul 25;13(1):12029. doi: 10.1038/s41598-023-39260-w.
Previous studies provide evidence for an association between modifications of the gut microbiota in early life and the development of food allergies. We studied the faecal microbiota composition (16S rRNA gene amplicon sequencing) and faecal microbiome functionality (metaproteomics) in a cohort of 40 infants diagnosed with cow's milk allergy (CMA) when entering the study. Some of the infants showed outgrowth of CMA after 12 months, while others did not. Faecal microbiota composition of infants was analysed directly after CMA diagnosis (baseline) as well as 6 and 12 months after entering the study. The aim was to gain insight on gut microbiome parameters in relation to outgrowth of CMA. The results of this study show that microbiome differences related to outgrowth of CMA can be mainly identified at the taxonomic level of the 16S rRNA gene, and to a lesser extent at the protein-based microbial taxonomy and functional protein level. At the 16S rRNA gene level outgrowth of CMA is characterized by lower relative abundance of Lachnospiraceae at baseline and lower Bacteroidaceae at visit 12 months.
先前的研究为生命早期肠道微生物群的改变与食物过敏的发展之间的关联提供了证据。我们研究了 40 名被诊断患有牛奶过敏(CMA)的婴儿的粪便微生物群组成(16S rRNA 基因扩增子测序)和粪便微生物组功能(宏蛋白质组学)。一些婴儿在进入研究 12 个月后出现 CMA 增长,而另一些则没有。在 CMA 诊断后(基线)以及进入研究后 6 个月和 12 个月直接分析了婴儿的粪便微生物群组成。目的是了解与 CMA 增长相关的肠道微生物组参数。本研究的结果表明,与 CMA 增长相关的微生物组差异主要可以在 16S rRNA 基因的分类学水平上识别,在基于蛋白质的微生物分类和功能蛋白质水平上则较少。在 16S rRNA 基因水平上,CMA 的增长特征是基线时lachnospiraceae 的相对丰度较低,12 个月时 visit 时 bacteroidaceae 的相对丰度较低。
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