Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

CALCA

calcitonin related polypeptide alpha

translation score 0.39, read 2026-10-20; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.07 from other evidence0.00
cell type
Human Protein Atlas
group enriched outside the brain (renal collecting duct intercalated cells)0.10
chemistry
Open Targets
a small-molecule pocket: eptinezumab, galcanezumab, fremanezumab0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
3 Parkinson's papers of 2930.82
pathways
Reactome
3 pathways; mostly other0.30

No case: the score is under the bar. Receipt 3845

Sealed predictions

  1. CALCA in dopamine neurons, braak-0.34 (p 0.378) → +0.57 (p 0.108)receipt 3852

Swarm cases

receipt 3852: CALCA in dopamine neurons, braak

power
full sample +0.01 (p 0.962, n 18), 95% CI -0.46 to +0.48. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.16 (p 0.515, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.14 (p 0.585, n 18). could be the mix.
skeptic
leave-one-out range -0.13 to +0.09, sign flips 6; without severely affected donors +0.01 (p 0.962, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for CALCA in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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