plasma LPS-binding protein separates causal from compensatory states in: How does gut microbiome dysbiosis contribute to neuroinflammation and neurodegenerat
Target: plasma LPS-binding proteinComposite Score: 0.738Price: $0.50Citation Quality: PendingneurodegenerationStatus: active
How does gut microbiome dysbiosis contribute to neuroinflammation and neurodegeneration through toll-like receptor TLR signaling and short-chain fatty acids SCFAs
A longitudinal biomarker panel centered on plasma LPS-binding protein can distinguish harmful mechanisms from protective adaptation. The decisive experiment is to measure plasma LPS-binding protein before and after TLR4 antagonism in stratified models.
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Curated Mechanism Pathway
Curated pathway diagram from expert analysis
flowchart TD
A["Gut Dysbiosis SCFA-Producing Bacteria Loss"]
B["Intestinal Permeability Leaky Gut Endotoxemia"]
C["LPS Translocation Portal and Systemic Circulation"]
D["TLR4 Activation MD-2 Coreceptor Complex"]
E["MyD88 Signaling NF-kappaB and MAPK Cascade"]
F["Peripheral Cytokine Storm IL-1beta and TNF Secretion"]
G["Microglial Priming Brain Resident Immune Activation"]
H["Neurodegeneration Synapse Loss and Tau Pathology"]
A --> B
B --> C
C --> D
D --> E
E --> F
F --> G
G --> H
style A fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7
style D fill:#7b1fa2,stroke:#ce93d8,color:#ce93d8
style G fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
style H fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
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7 citations5 with PMID5 mediumValidation: 0%6 supporting / 1 opposing
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5
No opposing evidence
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Evidence Matrix — sortable by strength/year, click Abstract to expand
causal direction requires longitudinal perturbation
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IF plasma LPS-binding protein separates causal dysbiosis from compensation, THEN baseline LBP in high-dysbiosis participants will predict >=20% faster rise in plasma GFAP or NfL over 18 months.
pendingconf: 0.58
Expected outcome: Top-tertile LBP among dysbiotic participants predicts >=20% higher annual GFAP/NfL slope than bottom tertile.
Falsified by: LBP tertiles differ by <5% in GFAP/NfL slope or association disappears after CRP/metabolic adjustment.
Method: Longitudinal human microbiome/neurodegeneration cohort with plasma LBP, SCFA profiling, GFAP/NfL, and 18-month follow-up.
IF LBP marks harmful SCFA-depletion states, THEN restoring butyrate-producing taxa will lower plasma LBP by >=15% and microglial activation PET signal by >=10% within 12 weeks.
pendingconf: 0.50
Expected outcome: Butyrate-restoration intervention reduces LBP >=15% and TSPO-PET or equivalent neuroinflammation marker >=10%.
Falsified by: LBP falls <5% or neuroinflammation marker does not change despite verified SCFA increase.
Method: Pilot probiotic/prebiotic or diet intervention in dysbiotic older adults with plasma LBP, stool SCFA, and neuroinflammation readout.