Bifidobacterium bifidum BGN4 and Bifidobacterium longum BORI promotes neuronal rejuvenation in aged mice.
Biochemical and biophysical research communications(2022)
摘要
An increasing number of studies have indicated that alterations in gut microbiota affect brain function, including cognition and memory ability, via the gut-brain axis. In this study, we aimed to determine the protective effect of Bifidobacterium bifidum BGN4 (B. bifidum BGN4) and Bifidobacterium longum BORI (B. longum BORI) on age-related brain damage in mice. We found that administration of B. bifidum BGN4 and B. longum BORI effectively elevates brain-derived neurotrophic factor expression which was mediated by increased histone 3 lysine 9 trimethylation. Furthermore, administration of probiotic supplementation reversed the DNA damage and apoptotic response in aged mice and also improved the age-related cognitive and memory deficits of these mice. Taken together, the present study highlights the anti-aging effects of B. bifidum BGN4 and B. longum BORI in the aged brain and their beneficial effects for age-related brain disorders.
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