APOE4 Systemically Disrupts Cholesterol Transport and Reduces Myelination via Oligodendrocyte Dysfunction; ABCA7 Loss-of-Function Disrupts Phosphatidylcholine Metabolism and Mitochondrial Function in Neurons

Recent Nature publications (2022, 2025) suggest Alzheimer's genetic risk alleles APOE4 and ABCA7 LoF disrupt brain lipid maintenance over decades through distinct but converging pathways (cholesterol transport → oligodendrocyte myelination; phospholipid flipping → neuronal membra

Type

evidence-claim

Domain

h03_epigenetic_alterations

Grade

B

License

CC BY-NC 4.0

card_id

L-007

hallmarks

h03_epigenetic_alterations,h04_loss_of_proteostasis,h07_mitochondrial_dysfunction

cluster

science_layer

primary_disease_area

alzheimers,longevity_general

evidence_tier

B

evidence_anchor_count

5

intake_round

R23

intake_date

2026-05-26

related_experts

TBD-Blanchard,TBD-vonMaydell,TBD-Tsai

related_biomarkers

bm_ptau217_abeta42_ratio

related_interventions

related_trials

collection_pages

/research/mechanisms,/research/alzheimers-risk-biology

LongProof Longevity Dynamic · LIGHT HOPE / x1000.ai · longevity.x1000.ai · 2026 · source

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