ArticleJCI insight2024
Abnormalities in microbiota/butyrate/FFAR3 signaling in aging gut impair brain function.
Article in JCI insight, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
49 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.
- Effects ofFrontiers in nutrition · 2025Pooled it
- Microbial metabolite-driven mechanisms linking the gut microbiome to atherosclerosis: multi-omic and translational perspectives.Gut microbes · 2026Review
- The putative role of the microbiota in the development of neuropsychiatric disorders following early childhood malnutrition.Gut microbes · 2026Review
- Short-chain fatty acid-producing commensals: Key modulators of AD neuroinflammation via the microbiota-gut-brain axis.Current research in microbial sciences · 2026Review
- Insights into Microbiota-Vaccine Crosstalk in Humans: Mechanisms, Modulators, and Translational Horizons.Vaccines · 2026Review
- Review
- Article
- Effects of repeated ovarian hyperstimulation on gut microbiota composition in a mouse model.JBRA assisted reproduction · 2026Article
- Interplay of the ENS and Microbiota With Murine Gut Epithelium-Derived Organoids in Aging.Aging cell · 2026Article
- Gut microbiota and aging: current understanding and future perspectives.Molecular biomedicine · 2026Review
- Aging-related decline in the liver and brain is accelerated by refined diet consumption.GeroScience · 2026Article
- Fecal Microbiota Transplantation from Toddler Donors Ameliorated DSS-Induced Colitis in Mice by Reshaping Gut Microbiota.Nutrients · 2026Article
- The Gut Microbiome in Amyotrophic Lateral Sclerosis: Emerging Mechanisms and Therapeutic Potential.Molecular neurobiology · 2026Review
- Metagenomic-Metabolomic Integration Reveals Gut Microbiota Dynamics and Metabolic Changes in Super-Geriatric Captive Giant Pandas.Animals : an open access journal from MDPI · 2026Article
- Controlled release of coated antioxidants inhibits Citrobacter rodentium colonization in the colon of rats by reducing gut redox potential.Redox biology · 2026Article
- Immunosenescence and Allergy: Molecular and Cellular Links Between Inflammaging, Neuro-Immune Aging, and Response to Biologic Therapies.International journal of molecular sciences · 2026Review
- Exercise-based modulation of the gut-brain axis: a new direction for neurorehabilitation in Alzheimer's disease.Frontiers in aging neuroscience · 2026Review
- The potential of microbiome modulators to improve quality of life in cancer survivors through gut microbiome-immune interactions.Frontiers in molecular neuroscience · 2026Review
- Diet-gut microbiota-immune-brain interactions in aging: mechanistic pathways and clinical implications.Frontiers in molecular neuroscience · 2026Review
- Microbiota-miR-101 interactions in obesity-associated colorectal cancer: from barrier dysfunction to precision therapeutic strategies.Frontiers in pharmacology · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors at 6 institutions in 2 countries.
Funding
Abstract
Aging-related abnormalities in gut microbiota are associated with cognitive decline, depression, and anxiety, but underlying mechanisms remain unstudied. Here, our study demonstrated that transplanting old gut microbiota to young mice induced inflammation in the gut and brain coupled with cognitive decline, depression, and anxiety. We observed diminished mucin formation and increased gut permeability ("leaky gut") with a reduction in beneficial metabolites like butyrate because of decline in butyrate-producing bacteria in the aged gut microbiota. This led to suppressed expression of butyrate receptors, free fatty acid receptors 2 and 3 (FFAR2/3). Administering butyrate alleviated inflammation, restored mucin expression and gut barriers, and corrected brain dysfunction. Furthermore, young mice with intestine-specific loss of FFAR2/3 exhibited gut and brain abnormalities akin to those in older mice. Our results demonstrate that reduced butyrate-producing bacteria in aged gut microbiota result in low butyrate levels and reduced FFAR2/3 signaling, leading to suppressed mucin formation that increases gut permeability, inflammation, and brain abnormalities. These findings underscore the significance of butyrate-FFAR2/3 agonism as a potential strategy to mitigate aged gut microbiota-induced detrimental effects on gut and brain health in older adults.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.