Cited by 370Gut microbiota and healthGenetics, Aging, and Longevity in Model OrganismsProbiotics and Fermented Foods

The Gut Microbiota and Unhealthy Aging: Disentangling Cause from Consequence

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DeJong, Erica N., Surette, Michael G., Bowdish, Dawn M.E.·2020·Cell Host & Microbe

Abstract

The gut microbiota changes with age, but it is not clear to what degree these changes are due to physiologic changes, age-associated inflammation or immunosenescence, diet, medications, or chronic health conditions. Observational studies in humans find that there are profound differences between the microbiomes of long-lived and frail individuals, but the degree to which these differences promote or prevent late-life health is unclear. Studies in model organisms demonstrate that age-related microbial dysbiosis causes intestinal permeability, systemic inflammation, and premature mortality, but identifying causal relationships have been challenging. Herein, we review how physiological and immune changes contribute to microbial dysbiosis and the degree to which microbial dysbiosis contributes to late-life health conditions. We discuss the features of the aging microbiota that make it more amenable to diet and pre- and probiotic interventions. Health interventions that promote a diverse microbiome could influence the health of older adults.

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Crossref · 10.1016/j.chom.2020.07.013

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  • Age-related alterations in the intestinal microbiota, particularly due to prolonged immune system stimulation, can contribute to the accumulation of inflammation and a decline in immune system function known as immunosenescence.

    “Age-related alterations in the intestinal microbiota, particularly due to prolonged immune system stimulation, can contribute to the accumulation of inflammation and a decline in immune system function known as immunosenescence.184”

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Authors
DeJong, E. N., Surette, M. G., & Bowdish, D. M. E.
Affiliations
Michael G. DeGroote Institute for Infectious Disease Research (CA)
Corresponding author
Bowdish, Dawn M.E.
Venue
Cell Host & Microbe
Publisher
Elsevier BV
Published
2020-08
Volume
28
Issue
2
Pages
180-189
ISSN
1931-3128 (ISSN-L)
OpenAlex
W3048898688
Cited by
370
References
110
Citations by year
2026: 43 · 2025: 80 · 2024: 79 · 2023: 59 · 2022: 63 · 2021: 43 · 2020: 3
FWCI
4.14
Type
journal article
Language
en
Open access
Locations
  • Cell Host & Microbe (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Canada Research Chairs
  • W. Garfield Weston Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
Keywords
gut microbiota, aging, dysbiosis, frailty, long-lived individuals, immunosenescence, age-associated inflammation, intestinal permeability, premature mortality, probiotics, prebiotics, diet, older adults, microbiome diversity
MeSH terms
Gastrointestinal Microbiome, Aging, Diet, Humans, Inflammation, Longevity, Exercise, Probiotics, Biodiversity, Dysbiosis

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