This challenge targets the hypothesis: **ω-3 Docosahexaenoic Acid (DHA) Epoxide Generation via CYP2J2 to Protect Synaptic Membranes from Aβ-Induced Rigidification** **Hypothesis Summary:** The hypothesis proposes that ω-3 docosahexaenoic acid (DHA) is metabolized by CYP2J2 to generate protective epoxides that shield synaptic membranes from amyloid-beta (Aβ)-induced rigidification. Evidence from planar lipid bilayer experiments demonstrates that CYP2J2-derived epoxides mitigate Aβ-induced membrane rigidity (pmid:31243156). Aβ oligomers are known to increase membrane cholesterol content by approximately 40% and expand raft domain size in cortical neurons (pmid:24503041). Supporting **Falsifiable Predictions:** 1. Pharmacological modulation of CYP2J2/ω-3 DHA epoxides (sEH inhibition) will alter lipidomics markers in validated models by ≥20% 2. Genetic knockdown of the key target will reproduce the pathological phenotype in ≥2 independent model systems 3. Patient-derived biosamples will show the predicted molecular signature (sensitivity ≥70%, specificity ≥70%) 4. Mechanistic intervention at the proposed node will rescue neuronal viability in vitro by ≥30% **Bounty Tier:** $125,153 USD (composite score 0.752) **Challenge Type:** Open — any team may submit experimental evidence supporting or refuting this hypothesis **Success Criteria:** Peer-reviewed evidence demonstrating mechanistic validation of ≥2 of the 4 predictions, with independent replication.