Ageing-associated gut dysbiosis deteriorates mouse cognition.
Abstract
Ageing is an independent factor for cognitive dysfunction. Ageing-associated alterations in the gut microbiota also affect cognition. The present study is designed to investigate changes in the gut microbiota and their participation in ageing-associated cognitive impairment. Both 10-week-old and 18-month-old mice are used. Mouse cognition is examined by novel object recognition and T-maze tests. Mouse feces are collected for sequencing and transplantation. Protein expression in the mouse intestine and hippocampus is studied using immunohistochemistry and immunofluorescence staining. Senescent neurons are induced by hydrogen peroxide
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Research summary
The paper claims that ageing-associated gut dysbiosis contributes to cognitive impairment in mice. This research is relevant as it explores the relationship between gut microbiota changes and cognitive decline, addressing potential underlying mechanisms of aging rather than merely treating symptoms.
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