Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SMN2

survival of motor neuron 2, centromeric

translation score 0.41, read 2026-10-27; 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
cell type enhanced, including brain excitatory neurons; strongest in early spermatids0.75
chemistry
Open Targets
hard to drug: onasemnogene abeparvovec, risdiplam, nusinersen sodium +10.00
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
3 Parkinson's papers of 1,4770.82
pathways
Reactome
2 pathways; mostly other0.30

No case: the score is under the bar. Receipt 11710

Sealed predictions

  1. SMN2 in dopamine neurons, braak+0.28 (p 0.470) → +0.10 (p 0.802)receipt 11718

Swarm cases

receipt 11718: SMN2 in dopamine neurons, braak

power
full sample +0.23 (p 0.365, n 18), 95% CI -0.27 to +0.63. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.21 (p 0.398, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.23 (p 0.365, n 18). could be the mix.
skeptic
leave-one-out range +0.13 to +0.31, sign flips 0; without severely affected donors +0.23 (p 0.365, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SMN2 in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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