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Gut-brain axis metabolites in early AD pathogenesis

PARTIALLY ADDRESSED

Emerging evidence suggests gut microbial metabolites (SCFAs, TMAO, tryptophan metabolites) may influence amyloid-beta aggregation and neuroinflammation years before clinical symptoms, but causal mechanisms are poorly defined.

Priority: 0.85 Domain: neurodegeneration Hypotheses: 1
📊 Landscape Analysis

Landscape Summary: Gut-brain axis metabolites in early AD pathogenesis is a 0.85 priority gap in neurodegeneration. It has 1 linked hypotheses with average composite score 0.642. Status: partially_addressed.

Key Unanswered Questions

Key Researchers

Colonna, Sevlever, et al. (TREM2 biology)

Clinical Trials

Gut-brain axis metabolites in early AD pathogenesis — INVOKE-2 (completed)

📈 Living Dashboards
1
Hypotheses
0.642
Top Score
0.642
Avg Score
0
Debates
0.00
Avg Quality
60%
Resolution
0
Mechanistic Families
Gap Resolution Progress60%

Hypothesis Score Distribution

🏆 Competing Hypotheses (Ranked by Score)
Targeting Bacterial Curli Fibrils to Prevent α-Synuclein Cross-Seeding
Target: CSGA Pathway: Bacterial curli amyloid → α-sy
0.642
score
🌊 Knowledge Graph Connections

associated with (21)

entities-ros→ADentities-histone-methylation→ADentities-atp7b-gene→ADTAU→ADTDP-43→AD
▸ Show 16 more

biomarker for (1)

tau cleavage products→AD

causes (6)

AD→neurodegenerationPHOSPHORYLATED_TAU→ADBETA_AMYLOID→ADAD→IMMUNE_TOLAD→memory_loss
▸ Show 1 more

contributes to (1)

NEUROINFLAMMATION→AD

cross disease mechanism in (5)

MAPT→ADTREM2→ADNLRP3→ADPINK1→ADGRN→AD

depleted in (1)

SPM_levels→AD

prevents (1)

NAD+ augmentation→AD

protective against (1)

cognitive stimulation→AD

regulates (1)

AD→PROTEOME

risk factor for (4)

genetically at-risk individuals→ADAPOE ε4→ADmicroglial priming→ADAPOE4→AD

targets (1)

resveratrol→AD

therapeutic target for (6)

TREM2→ADCCR2→ADSaracatinib→ADanti-amyloid antibodies→ADNAD+ augmentation→AD
▸ Show 1 more

treats (1)

HTL9936→AD
🕑 Activity Feed
📈 Targeting Bacterial Curli Fibrils to Prevent α-Synuclein Cro score=0.642 2026-04-02T20:53
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