腸内細菌叢と食糧不安が認知障害リスクと関連(Gut Microbiome Composition and Food Insecurity Linked to Risk of Cognitive Impairment in Adults)

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2025-06-18 マウントサイナイ医療システム(MSHS)

マウントシナイ病院などの研究で、腸内微生物叢と成人の認知障害リスク(RCI)との関連に食料不安が影響することが明らかとなった。微生物多様性が低く特定の腸内クラスタ(クリーク)を持つ人はRCIリスクが高く、特に食料不安を抱える群でその関連が強かった。また、食料不安は腸内環境と認知機能に独立して悪影響を及ぼす。本研究は社会的要因と腸内微生物の相互作用に基づく新たな認知症予防の可能性を示している。

<関連情報>

食糧不安は腸内細菌叢と成人の認知障害リスクとの関連性を変化させる Food insecurity modifies the association between the gut microbiome and the risk of cognitive impairment in adults

Shoshannah Eggers,Zachary E. Hoggarth,Kiran Nagdeo,Maria J. Banas,Jamil M. Lane,Elza Rechtman,Chris Gennings,Elizabeth O’Neal,Paul E. Peppard,Ajay K. Sethi,Nasia Safdar,Kristen MC Malecki,Amy A. Schultz & Vishal Midya
npj Aging  Published:18 June 2025
DOI:https://doi.org/10.1038/s41514-025-00241-0

腸内細菌叢と食糧不安が認知障害リスクと関連(Gut Microbiome Composition and Food Insecurity Linked to Risk of Cognitive Impairment in Adults)

Abstract

This study investigated the role of food insecurity as an effect modifier between the gut microbiome, including groups of microbes (cliques), and risk of cognitive impairment (RCI). The analytical sample (n = 360) included adult participants of the Survey of the Health of Wisconsin with complete data on food insecurity, RCI, and 16S rRNA sequencing from stool samples. Microbial cliques associated with RCI were identified using an interpretable machine-learning-based algorithm. All analyses were stratified by food insecurity level, and adjusted for relevant confounders. We identified two cliques whose associations with RCI were modified by food insecurity status. The presence of the clique with either Eisenbergiella or Eubacterium was more strongly associated with RCI for the food-insecure group (β = 0.29, p < 0.0001). A clique representing the presence of Ruminococcus torques, Bacteroides, CAG-352F, and/or Eubacterium had a stronger association with RCI for the food-secure group (β = 0.1, p < 0.0001). Findings suggest food security be considered in RCI etiology.

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