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标题：Gut dsDNA virome shows diversity and richness alterations associated with childhood obesity and metabolic syndrome
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作者：Shirley Bikel ; Gamaliel López-Leal ; Fernanda Cornejo-Granados 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2021
卷号：24
期号：8
页码：1-23
DOI：10.1016/j.isci.2021.102900
语种：English
出版社：Elsevier
摘要：SummaryChanges in the human gut microbiome are associated with obesity and metabolic syndrome, but the role of the gut virome in both diseases remains largely unknown. We characterized the gut dsDNA virome of 28 school-aged children with healthy normal-weight (NW, n = 10), obesity (O, n = 10), and obesity with metabolic syndrome (OMS, n = 8), using metagenomic sequencing of virus-like particles (VLPs) from fecal samples. The virome classification confirmed the bacteriophages' dominance, mainly composed of Caudovirales. Notably, phage richness and diversity of individuals with O and OMS tended to increase, while the VLP abundance remained the same among all groups. Of the 4,611 phage contigs composing the phageome, 48 contigs were highly prevalent in ≥80% of individuals, suggesting high inter-individual phage diversity. The abundance of several contigs correlated with gut bacterial taxa; and with anthropometric and biochemical parameters altered in O and OMS. To our knowledge, this gut phageome represents one of the largest datasets and suggests disease-specific phage alterations.Graphical abstractDisplay OmittedHighlights•The VLP abundance remained the same between normal weight and obesity groups•Increased phage richness and diversity is linked to the disease•Bacteriophages dominated the gut virome with high inter-individual diversity•Differential phage abundances and prevalences are associated with the diseaseBiological sciences; Physiology; Microbiology; Virology; Endocrinology; Omics.