Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

RAB8A

RAB8A, member RAS oncogene family

translation score 0.45, read 2026-10-21; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.04 from other evidence0.00
cell type
Human Protein Atlas
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
63 Parkinson's papers of 3140.45
pathways
Reactome
7 pathways; mostly vesicle traffic1.00

No case: the score is under the bar. Receipt 5599

Sealed predictions

  1. RAB8A in dopamine neurons, braak-0.11 (p 0.784) → -0.06 (p 0.888)receipt 5605

Swarm cases

receipt 5605: RAB8A in dopamine neurons, braak

power
full sample -0.03 (p 0.894, n 18), 95% CI -0.49 to +0.44. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.03 (p 0.894, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.02 (p 0.928, n 18). could be the mix.
skeptic
leave-one-out range -0.16 to +0.09, sign flips 6; without severely affected donors -0.03 (p 0.894, n 18). fragile.
cell type
strongest in microglia: -0.71 (p 9.1e-4, n 18) vs -0.03 in dopamine neurons. proposing microglia.
axis
no measure beats "tracks Braak Lewy-body stage" for RAB8A in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up RAB8A · microglia · braak: substantia nigra, an independent cohort (Parkinson's or LBD vs controls) +0.00 p 1.000 (needs p < 3.6e-4)

Receipts

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