ArticleNature communications2024
Bacteroidota inhibit microglia clearance of amyloid-beta and promote plaque deposition in Alzheimer's disease mouse models.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
48 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- The correlation and gut microbial characteristics in the whole spectrum of Alzheimer's disease: a systematic review and meta-analysis.Frontiers in neuroscience · 2026Pooled it
- Pooled it
- Mucin-degrading gut bacteria: context-dependent roles in intestinal homeostasis and disease.Gut microbes · 2026Review
- Article
- IgA Deficiency Exacerbates an Animal Model of Multiple Sclerosis Induced with Theiler's Virus.Cells · 2026Article
- Gut Microbiota and Brain Aging: Identifying Keystone Biomarkers for Cognitive Health.Biomedicines · 2026Review
- Modulating the Gut-Microbiota-Brain Axis in Alzheimer's Disease: Therapeutic Potential of Nutritional and Metabolic Factors.CNS neuroscience & therapeutics · 2026Review
- The Gut-Immune-Brain Axis in Aging: Integrating Immunosenescence, Inflammaging, and Neuroinflammation for Precision Medicine.Medical sciences (Basel, Switzerland) · 2026Review
- Microglia in Alzheimer's Disease: From Homeostatic Guardians to Multifaceted Drivers of Neuropathology.Cells · 2026Review
- Review
- Panacis Quinquefolii Radix Polysaccharides Alleviate Depressive-Like Behaviors in Chronic Unpredictable Mild Stress-Induced Mice by Suppressing Complement C1Q/C3-Mediated Microglial Synaptic Pruning and Modulating Gut Microbiota.CNS neuroscience & therapeutics · 2026Article
- Nose-to-brain delivery of donepezil within a small dose improves bioavailability and efficacy for Alzheimer's disease treatment.Asian journal of pharmaceutical sciences · 2026Article
- Targeting the Gut-Brain-Ferroptosis Axis: Molecular Mechanisms and Therapeutic Potential in Alzheimer's Disease and Epilepsy.Journal of molecular neuroscience : MN · 2026Review
- Immune dysfunction in Alzheimer disease.Nature reviews. Neuroscience · 2026Review
- C9orf72 in myeloid cells prevents an inflammatory response to microbial glycogen.Cell reports · 2026Article
- Indigenous gut microbes modulate neural cell state and neurodegenerative disease susceptibility.Cell systems · 2026Article
- Microbiota and Alzheimer's disease: mechanistic insights from a multi-organ perspective.Translational neurodegeneration · 2026Review
- 4-Phenylbutyrate Induces Functional Elongation of the Microglial Process Through Activation of Akt.Neurochemical research · 2026Article
- Age-driven dysbiosis: gut microbiota in the pathogenesis and treatment of aging disorders.Biogerontology · 2026Review
- Exploring the gut-brain axis: dietary influences on Alzheimer's disease pathogenesis.Frontiers in microbiomes · 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
15 authors.
Funding
Abstract
The gut microbiota and microglia play critical roles in Alzheimer's disease (AD), and elevated Bacteroides is correlated with cerebrospinal fluid amyloid-β (Aβ) and tau levels in AD. We hypothesize that Bacteroides contributes to AD by modulating microglia. Here we show that administering Bacteroides fragilis to APP/PS1-21 mice increases Aβ plaques in females, modulates cortical amyloid processing gene expression, and down regulates phagocytosis and protein degradation microglial gene expression. We further show that administering Bacteroides fragilis to aged wild-type male and female mice suppresses microglial uptake of Aβ1-42 injected into the hippocampus. Depleting murine Bacteroidota with metronidazole decreases amyloid load in aged 5xFAD mice, and activates microglial pathways related to phagocytosis, cytokine signaling, and lysosomal degradation. Taken together, our study demonstrates that members of the Bacteroidota phylum contribute to AD pathogenesis by suppressing microglia phagocytic function, which leads to impaired Aβ clearance and accumulation of amyloid plaques.
Indexed as
Identifiers
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.