Red wine (poly)phenols supplementation reduces amyloid-beta (aβ) pathology in APP/PS1 mice model: Possible implications of gut-brain axis explored by untargeted fecal metabolomics

Nov 11, 2025Food research international (Ottawa, Ont.)

Red wine polyphenols lower amyloid-beta buildup in Alzheimer's mice, possibly involving gut-brain interactions

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Abstract

Dealcoholized red wine (DRW) reduced Aβ40 and Aβ42 levels in APP/PS1 mice, with males showing greater sensitivity.

  • DRW may influence amyloid levels associated with Alzheimer's disease pathology.
  • Fecal metabolomics indicated that DRW modulates sex-specific metabolic pathways.
  • In males, DRW affected lipid and mitochondrial pathways, while in females, it influenced broader metabolic networks.
  • Guanosine and estradiol phenylpropionate levels correlated with Aβ42 in females, suggesting potential sex-specific mechanisms.
  • The effects of RW components on AD pathology may depend on dosage and sex.

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