ArticleAlzheimer's research & therapy2023
A peripheral signature of Alzheimer's disease featuring microbiota-gut-brain axis markers.
Article in Alzheimer's research & therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.
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Who cites it
63 citing papers in PubMed, 1 synthesis or guideline pooled it, 106 citations in OpenAlex.
- Gut Microbiota Dysbiosis and Neuroinflammation in Alzheimer's Disease: a Systematic Review of Mechanistic Insights.Molecular neurobiology · 2026Pooled it
- Trial
- Review
- The pathogenic role of gut microbiota dysbiosis in Alzheimer's disease: a narrative review of neuroimaging evidence.Journal of neural transmission (Vienna, Austria : 1996) · 2026Review
- Anti-Alpha-Gal Antibodies Against Gangliosides: Preliminary Data on a New Autoimmune Target in Alzheimer's Disease Patients.International journal of molecular sciences · 2026Article
- Discovery-Driven Plasma Proteomics Identifies a Multi-Protein Signature for Amyloid PET Positivity: A Machine Learning Analysis of the Bio-Hermes Cohort.International journal of molecular sciences · 2026Article
- The complex of gut microbial metabolites and sex hormones in Alzheimer's disease.Seminars in immunopathology · 2026Review
- Microbiota and Alzheimer's disease: mechanistic insights from a multi-organ perspective.Translational neurodegeneration · 2026Review
- enGLOW 3D microscopy of the enteric nervous system in cleared human and mouse gut.Communications biology · 2026Article
- Endotoxins and Metabolic Endotoxemia in Obesity and Associated Noncommunicable Diseases: A Focus on Sex Differences.Biomolecules · 2026Review
- Mental health and gut-brain crosstalk: implications for depression and Alzheimer's disease.Neuroscience applied · 2026Review
- Gut microbiota and cognitive decline: a scoping review of microbial mechanisms and adaptive responses in dementia.Frontiers in aging neuroscience · 2026Review
- Modulating the gut ecosystem dietary, probiotic, and novel interventions for bone health in postmenopausal women.Frontiers in immunology · 2026Review
- Integrating serum pharmacology, network pharmacology, and molecular biology analysis to reveal the mechanisms of Baihe Dihuang decoction in treating Alzheimer's disease.Frontiers in microbiology · 2026Article
- The gut-brain axis in Alzheimer's disease: traditional Chinese medicine constituents as modulators of gut-brain homeostasis.Frontiers in microbiology · 2026Review
- Toward a Unified Framework in Molecular Neurobiology of Alzheimer's Disease: Revisiting the Pathophysiological Hypotheses.Molecular neurobiology · 2025Review
- Epigenetic dysregulation of transposable elements in cognitive impairment and Alzheimer's disease.GeroScience · 2025Article
- Lysine restriction attenuates obesity-related anxiety-like behaviors via increasing Oscillibacter ruminantium-mediated tryptophol regulation.Microbiome · 2025Article
- Molecular mechanisms of gut microbiota dysbiosis and metabolites in Alzheimer's disease pathogenesis: implications for precision therapeutics.Molecular brain · 2025Review
- Dissecting Causal Relationships Between Gut Microbiota Imbalance, Inflammatory Cytokines, and Structural Connectivity in the Brain: A Mendelian Randomization Study.Brain and behavior · 2025Article
3 more citing papers are in PubMed but not listed here.
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Authors and funding
15 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIncreasing evidence links the gut microbiota (GM) to Alzheimer's disease (AD) but the mechanisms through which gut bacteria influence the brain are still unclear. This study tests the hypothesis that GM and mediators of the microbiota-gut-brain axis (MGBA) are associated with the amyloid cascade in sporadic AD.
methodsWe included 34 patients with cognitive impairment due to AD (CI-AD), 37 patients with cognitive impairment not due to AD (CI-NAD), and 13 cognitively unimpaired persons (CU). We studied the following systems: (1) fecal GM, with 16S rRNA sequencing; (2) a panel of putative MGBA mediators in the blood including immune and endothelial markers as bacterial products (i.e., lipopolysaccharide, LPS), cell adhesion molecules (CAMs) indicative of endothelial dysfunction (VCAM-1, PECAM-1), vascular changes (P-, E-Selectin), and upregulated after infections (NCAM, ICAM-1), as well as pro- (IL1β, IL6, TNFα, IL18) and anti- (IL10) inflammatory cytokines; (3) the amyloid cascade with amyloid PET, plasma phosphorylated tau (pTau-181, for tau pathology), neurofilament light chain (NfL, for neurodegeneration), and global cognition measured using MMSE and ADAScog. We performed 3-group comparisons of markers in the 3 systems and calculated correlation matrices for the pooled group of CI-AD and CU as well as CI-NAD and CU. Patterns of associations based on Spearman's rho were used to validate the study hypothesis.
resultsCI-AD were characterized by (1) higher abundance of Clostridia_UCG-014 and decreased abundance of Moryella and Blautia (p < .04); (2) elevated levels of LPS (p < .03), upregulation of CAMs, Il1β, IL6, and TNFα, and downregulation of IL10 (p < .05); (3) increased brain amyloid, plasma pTau-181, and NfL (p < 0.004) compared with the other groups. CI-NAD showed (1) higher abundance of [Eubacterium] coprostanoligenes group and Collinsella and decreased abundance of Lachnospiraceae_ND3007_group, [Ruminococcus]_gnavus_group and Oscillibacter (p < .03); (2) upregulation of PECAM-1 and TNFα (p < .03); (4) increased plasma levels of NfL (p < .02) compared with CU. Different GM genera were associated with immune and endothelial markers in both CI-NAD and CI-AD but these mediators were widely related to amyloid cascade markers only in CI-AD.
conclusionsSpecific bacterial genera are associated with immune and endothelial MGBA mediators, and these are associated with amyloid cascade markers in sporadic AD. The physiological mechanisms linking the GM to the amyloid cascade should be further investigated to elucidate their potential therapeutic implications.
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