Age-related changes in the marmoset gut microbiome

Kelly R. Reveles, Shrina Patel, Larry Forney, Corinna N. Ross

    Research output: Contribution to journalArticlepeer-review

    7 Scopus citations

    Abstract

    The gut microbiome is known to play a significant role in human health but its role in aging remains unclear. The objective of this study was to compare the gut microbiome composition between young adult and geriatric non-human primates (marmosets) as a model of human health and disease. Stool samples were collected from geriatric (8+ years) and young adult males (2–5 years). Stool 16S ribosomal RNA V4 sequences were amplified and sequenced on the Illumina MiSeq platform. Sequences were clustered into operational taxonomic units and classified via Mothur's Bayesian classifier referenced against the Greengenes database. A total of 10 young adult and 10 geriatric marmosets were included. Geriatric marmosets had a lower mean Shannon diversity compared with young marmosets (3.15 vs. 3.46; p = 0.0191). Geriatric marmosets had a significantly higher mean abundance of Proteobacteria (0.22 vs. 0.09; p = 0.0233) and lower abundance of Firmicutes (0.15 vs. 0.19; p = 0.0032) compared with young marmosets. Geriatric marmosets had a significantly higher abundance of Succinivibrionaceae (0.16 vs. 0.01; p = 0.0191) and lower abundance of Porphyromonadaceae (0.07 vs. 0.11; p = 0.0494). In summary, geriatric marmosets had significantly altered microbiome diversity and composition compared with young adult marmosets. Further studies are needed to test microbiome-targeted therapies to improve healthspan and lifespan.

    Original languageEnglish (US)
    Article numbere22960
    JournalAmerican Journal of Primatology
    Volume81
    Issue number2
    DOIs
    StatePublished - Feb 1 2019

    Keywords

    • aging
    • dysbiosis
    • geriatrics
    • gut microbiota
    • marmoset
    • microbiome

    ASJC Scopus subject areas

    • Ecology, Evolution, Behavior and Systematics
    • Animal Science and Zoology

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