All Sarah Nicolas articles

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    News

    When rats run, their gut bacteria rewrite the chemical conversation with the brain

    2026-03-10T12:23:00Z

     A new study suggests that exercise stimulates a molecular link between gut bacteria and the brain. The research examined what happens to the gut microbiota, circulating metabolites, and hippocampal gene expression when rats are given free access to a running wheel for eight weeks.

  • Low-Res_Scientists discover links between Alzheimer’s disease and gut microbiota. Pictured are Dr Stefanie Grabrucker and Professor Yvonne Nolan. (2)
    News

    Scientists discover links between Alzheimer’s disease and gut microbiota

    2023-10-18T09:11:00Z

    Researchers have discovered the link between the gut microbiota and Alzheimer’s disease. For the first time, researchers have found that Alzheimer’s symptoms can be transferred to a healthy young organism via the gut microbiota, confirming its role in the disease. Source: UCC Scientists discover links between Alzheimer’s disease ...