Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

PPY

pancreatic polypeptide

translation score 0.35, read 2026-10-22; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.03 from other evidence0.00
cell type
Human Protein Atlas
cell type enriched outside the brain (pancreatic islet cells)0.10
chemistry
Open Targets
reachable by antibody0.45
trials
ClinicalTrials.gov
2 Parkinson's trials, 0 stopped1.00
literature
PubMed
7 Parkinson's papers of 5,3140.73
pathways
Reactome
2 pathways; mostly other0.30

No case: the score is under the bar. Receipt 6690

Sealed predictions

  1. PPY in dopamine neurons, braak+0.27 (p 0.478) → -0.37 (p 0.329)receipt 6697

Swarm cases

receipt 6697: PPY in dopamine neurons, braak

power
full sample -0.21 (p 0.408, n 18), 95% CI -0.61 to +0.29. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.23 (p 0.351, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.38 (p 0.118, n 18). could be the mix.
skeptic
leave-one-out range -0.35 to -0.11, sign flips 0; without severely affected donors -0.21 (p 0.408, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for PPY in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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