ID: h-da0eec2bdf
Hypothesis

Perivascular Dimensionality: GluN2B Control of Thalamocortical vs. Corticopial Glymphatic Shunting

Thalamocortical circuits interface with para-arterial glymphatic influx pathways while corticopial projections interface with venous efflux.
🧬 GRIN2B activity pattern; topological glymphatic routing🩺 neuroscience🎯 Composite 56%💱 $0.54▼5.7%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 3 support 2 oppose
✓ All Quality Gates Passed
Mechanistic 0.55 (15%) Evidence 0.52 (15%) Novelty 0.78 (12%) Feasibility 0.48 (12%) Impact 0.55 (12%) Druggability 0.50 (10%) Safety 0.65 (8%) Competition 0.60 (6%) Data Avail. 0.45 (5%) Reproducible 0.48 (5%) KG Connect 0.50 (8%) 0.556 composite

🧪 Overview

Thalamocortical circuits interface with para-arterial glymphatic influx pathways while corticopial projections interface with venous efflux. GluN2B-mediated thalamic activity preferentially shunts CSF toward deeper thalamocortical perivascular spaces; reduced GluN2B redirects flow superficially. Tau clearance efficiency depends on matching regional burden to appropriate drainage topology.

🧬 Mechanism

🔗 Mechanism from KG for GRIN2B activity pattern; topological glymphatic routing

Auto-built from this analysis's top knowledge-graph edges.

graph TD
    GluN2B["GluN2B"] -->|regulates| thalamic_burst_firing["thalamic burst firing"]
    slow_wave_oscillations["slow-wave oscillations"] -->|enhances| glymphatic_clearance["glymphatic_clearance"]
    tau_pathology["tau_pathology"] -.->|inhibits| glymphatic_clearance_effi["glymphatic clearance efficiency"]
    Trem2["Trem2"] -->|regulates| tau_phagocytosis["tau phagocytosis"]
    TREM2_deficiency["TREM2 deficiency"] -->|associated with| Tau_Clearance["Tau Clearance"]
    Cx3Cl1["Cx3Cl1"] -->|associated with| Cx3Cr1["Cx3Cr1"]
    Cx3Cr1_1["Cx3Cr1"] -->|regulates| tau_phagocytosis_2["tau phagocytosis"]
    Memantine["Memantine"] -->|enhances| CSF_tracer_clearance["CSF tracer clearance"]
    GluN2B_3["GluN2B"] -->|associated with| cortical_slow_wave_oscill["cortical slow-wave oscillations"]
    oxidative_stress["oxidative_stress"] -->|causes| AQP4_oxidation["AQP4 oxidation"]
    GLUTAMATE_EXCITOTOXICITY["GLUTAMATE EXCITOTOXICITY"] -->|enhances| Tau_Secretion["Tau Secretion"]
    sess_SRB_2026_04_28_h_var["sess_SRB-2026-04-28-h-var-e2b5a7e7db_task_9aae8fc5"] -->|causal extracted| processed["processed"]
    style GluN2B fill:#4fc3f7,stroke:#333,color:#000
    style thalamic_burst_firing fill:#4fc3f7,stroke:#333,color:#000
    style slow_wave_oscillations fill:#4fc3f7,stroke:#333,color:#000
    style glymphatic_clearance fill:#81c784,stroke:#333,color:#000
    style tau_pathology fill:#ef5350,stroke:#333,color:#000
    style glymphatic_clearance_effi fill:#4fc3f7,stroke:#333,color:#000
    style Trem2 fill:#4fc3f7,stroke:#333,color:#000
    style tau_phagocytosis fill:#4fc3f7,stroke:#333,color:#000
    style TREM2_deficiency fill:#4fc3f7,stroke:#333,color:#000
    style Tau_Clearance fill:#4fc3f7,stroke:#333,color:#000
    style Cx3Cl1 fill:#4fc3f7,stroke:#333,color:#000
    style Cx3Cr1 fill:#4fc3f7,stroke:#333,color:#000
    style Cx3Cr1_1 fill:#4fc3f7,stroke:#333,color:#000
    style tau_phagocytosis_2 fill:#4fc3f7,stroke:#333,color:#000
    style Memantine fill:#ce93d8,stroke:#333,color:#000
    style CSF_tracer_clearance fill:#ce93d8,stroke:#333,color:#000
    style GluN2B_3 fill:#4fc3f7,stroke:#333,color:#000
    style cortical_slow_wave_oscill fill:#4fc3f7,stroke:#333,color:#000
    style oxidative_stress fill:#4fc3f7,stroke:#333,color:#000
    style AQP4_oxidation fill:#4fc3f7,stroke:#333,color:#000
    style GLUTAMATE_EXCITOTOXICITY fill:#4fc3f7,stroke:#333,color:#000
    style Tau_Secretion fill:#4fc3f7,stroke:#333,color:#000
    style sess_SRB_2026_04_28_h_var fill:#4fc3f7,stroke:#333,color:#000
    style processed fill:#4fc3f7,stroke:#333,color:#000

⚖️ Evidence

⚖️ Evidence Matrix3 supports2 contradicts
Supports
Different brain regions exhibit distinct glymphatic influx/efflux patterns
Supports
Tau first accumulates in entorhinal cortex (deep) before spreading superficially (Braak staging)
Supports
NMDA antagonists alter regional CBF in thalamus vs. cortex
Contradicts
Glymphatic MRI measurement validity challenged (Gd-DTPA enters via multiple pathways)
Contradicts
Regional glymphatic topology not fully mapped in humans
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — GRIN2B

🧬 PDB 7EU8 Click to expand

Experimental structure from RCSB PDB | Powered by Mol*

💉 Clinical Trials

No clinical trials data linked to this hypothesis yet.

No curated ClinVar variants loaded for this hypothesis.

Run scripts/backfill_clinvar_variants.py to fetch P/LP/VUS variants.

🔍 Search ClinVar for GRIN2B activity pattern; topological glymphatic routing →

No DepMap CRISPR Chronos data found for GRIN2B activity pattern; topological glymphatic routing.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

🏆 Tournament

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📊 Market Indicators

7d Trend
Stable
7d Momentum
▼ 0.3%
Volatility
Low
0.0008
Events (7d)
2
Price History
▼5.7%

💾 Resource Usage

No resource usage or linked notebooks recorded for this hypothesis yet.

Metadatasource: v1_phase_c_backfill · origin_type: debate_synthesizer
sourcev1_phase_c_backfill
origin_typedebate_synthesizer
_schema_version1
📊 Evidence Profile
Evidence Balance
+0%
Certainty
0%
Debates
0
Incoming
0
Outgoing
0
0 supporting 0 contradicting 0 neutral
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