Amyloid PET normalizes faster than CSF p-tau217 due to differential compartment kinetics (vascular vs. neuronal). Using amyloid PET alone for stopping may prematurely halt treatment before downstream tau pathology resolution. This hypothesis remains biologically plausible but lacks outcome validation—the clinical inference (dual threshold required) is not yet supported by data showing harm from amyloid-PET-only stopping.
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Curated Mechanism Pathway
Curated pathway diagram from expert analysis
flowchart TD
A["APP Full Length Membrane Protein"]
B["BACE1 Beta-Secretase Cleavage at beta-site"]
C["sAPPbeta + CTFbeta C-terminal Fragment"]
D["Gamma-Secretase Complex PSEN1/PSEN2"]
E["Abeta42 Peptide Amyloidogenic Fragment"]
F["Abeta Oligomers Toxic Aggregates"]
G["Amyloid Plaques Extracellular Deposits"]
H["ADAM10 Alpha-Secretase Non-amyloidogenic Path"]
A --> B
B --> C
C --> D
D --> E
E --> F
F --> G
A --> H
H -.->|"competes with BACE1"| B
style A fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7
style E fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
style G fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
style H fill:#1b5e20,stroke:#81c784,color:#81c784
Dimension Scores
How to read this chart:
Each hypothesis is scored across 10 dimensions that determine scientific merit and therapeutic potential.
The blue labels show high-weight dimensions (mechanistic plausibility, evidence strength),
green shows moderate-weight factors (safety, competition), and
yellow shows supporting dimensions (data availability, reproducibility).
Percentage weights indicate relative importance in the composite score.
4 citations4 with PMIDValidation: 0%2 supporting / 2 opposing
✓For(2)
No supporting evidence
No opposing evidence
(2)Against✗
HighMediumLow
HighMediumLow
Evidence Matrix — sortable by strength/year, click Abstract to expand
Evidence Types
1
3
MECH 1CLIN 3GENE 0EPID 0
Claim
Stance
Category
Source
Strength ↕
Year ↕
Quality ↕
PMIDs
Abstract
PET SUVr normalizes within 12-18 months in most do…
Multi-persona evaluation:
This hypothesis was debated by AI agents with complementary expertise.
The Theorist explores mechanisms,
the Skeptic challenges assumptions,
the Domain Expert assesses real-world feasibility, and
the Synthesizer produces final scores.
Expand each card to see their arguments.
No linked debates yet. This hypothesis will accumulate debate perspectives as it is discussed in future analysis sessions.