期刊
NUTRIENTS
卷 13, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/nu13020507
关键词
restricting anorexia nervosa; binge-purging anorexia nervosa; eating disorders; gut microbiome; fecal metabolomics
Alterations in the gut microbiome and fecal metabolites were found in anorexia nervosa (AN), with differences seen between those with restricting AN (ANR) and binge-purging AN (ANBP) types. ANBP patients showed significant differences in microbial abundances and metabolites compared to ANR patients. Despite small sample size, this study confirms the occurrence of distinct gut dysbiosis in ANR and ANBP, showcasing different connections between gut microorganisms and fecal metabolites in the two AN types.
Alterations in the gut microbiome and fecal metabolites have been detected in anorexia nervosa (AN), but differences in those profiles between restricting AN (ANR) and binge-purging AN (ANBP) type have not been explored. We made a secondary analysis of our previous data concerning microbiome and metabolomics profiles of 17 ANR women, six ANBP women and 20 healthy controls (HC). Twelve fecal metabolites differentiating ANR patients, ANBP patients and HC were identified. Both patient groups showed decreased intra-individual bacterial richness with respect to healthy controls (HC). Compared to ANR subjects, ANBP patients had a significant increase in relative abundances of Bifidobacterium, Bifidobacteriaceae, Bifidobacteriales, and Eubacteriacae and a significant decrease in relative abundances of Odoribacter, Haemophilus, Pasteurellaceae, and Pasteurellales. The heatmaps of the relationships of selected fecal metabolites with microbial families showed different structures among the three groups, with the heatmap of ANBP patients being drastically different from that of HC, while that of ANR patients resulted more similar to HC. These findings, although preliminary because of the relatively small sample size, confirm the occurrence of different gut dysbiosis in ANR and ANBP and demonstrate different connections between gut microorganisms and fecal metabolites in the two AN types.
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