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- W4379466814 endingPage "e16908" @default.
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- W4379466814 abstract "The intestinal microbiota has been proposed to influence human mental health and cognition through the gut-brain axis. Individuals experiencing recurrent Clostridioides difficile infection (rCDI) frequently report depressive symptoms, which are improved after fecal microbiota transplantation (FMT); however, mechanisms underlying this association are poorly understood. Short-chain fatty acids and carboxylic acids (SCCA) produced by the intestinal microbiota cross the blood brain barrier and have been proposed to contribute to gut-brain communication. We hypothesized that changes in serum SCCA measured before and after successful FMT for rCDI influences the inflammatory response of microglia, the resident immune cells of the central nervous system. Serum SCCA were quantified using gas chromatography-mass spectroscopy from 38 patients who participated in a randomized trial comparing oral capsule-vs colonoscopy-delivered FMT for rCDI, and quality of life was assessed by SF-36 at baseline, 4, and 12 weeks after FMT treatment. Successful FMT was associated with improvements in mental and physical health, as well as significant changes in a number of circulating SCCA, including increased butyrate, 2-methylbutyrate, valerate, and isovalerate, and decreased 2-hydroxybutyrate. Primary cultured microglia were treated with SCCA and the response to a pro-inflammatory stimulus was measured. Treatment with a combination of SCCA based on the post-FMT serum profile, but not single SCCA species, resulted in significantly reduced inflammatory response including reduced cytokine release, reduced nitric oxide release, and accumulation of intracellular lipid droplets. This suggests that both levels and diversity of SCCA may be an important contributor to gut-brain communication." @default.
- W4379466814 created "2023-06-07" @default.
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- W4379466814 date "2023-06-01" @default.
- W4379466814 modified "2023-09-26" @default.
- W4379466814 title "Short-chain fatty and carboxylic acid changes associated with fecal microbiota transplant communally influence microglial inflammation" @default.
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- W4379466814 doi "https://doi.org/10.1016/j.heliyon.2023.e16908" @default.
- W4379466814 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37484415" @default.
- W4379466814 hasPublicationYear "2023" @default.
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