Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

CHRNA2

cholinergic receptor nicotinic alpha 2 subunit

translation score 0.49, read 2026-10-26; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.01 from other evidence0.00
cell type
Human Protein Atlas
group enriched outside the brain (retinal amacrine cells)0.10
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
2 Parkinson's papers of 1280.85
pathways
Reactome
2 pathways; mostly dopamine synapse1.00

No case: the score is under the bar. Receipt 10558

Sealed predictions

  1. CHRNA2 in dopamine neurons, braak+0.01 (p 0.981) → -0.50 (p 0.168)receipt 10567

Swarm cases

receipt 10567: CHRNA2 in dopamine neurons, braak

power
full sample -0.30 (p 0.221, n 18), 95% CI -0.67 to +0.19. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.31 (p 0.207, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.39 (p 0.107, n 18). could be the mix.
skeptic
leave-one-out range -0.44 to -0.22, sign flips 0; without severely affected donors -0.30 (p 0.221, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for CHRNA2 in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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