Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

IAPP

islet amyloid polypeptide

translation score 0.31, read 2026-10-22; 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
cell type enriched outside the brain (pancreatic islet cells)0.10
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
1 Parkinson's trial, 0 stopped1.00
literature
PubMed
78 Parkinson's papers of 1,4060.42
pathways
Reactome
4 pathways; mostly other0.30

No case: the score is under the bar. Receipt 6247

Sealed predictions

  1. IAPP in dopamine neurons, braak+0.79 (p 0.011) → +0.22 (p 0.570)receipt 6253

Swarm cases

receipt 6253: IAPP in dopamine neurons, braak

power
full sample +0.46 (p 0.055, n 18), 95% CI -0.01 to +0.76. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.49 (p 0.041, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.46 (p 0.055, n 18). could be the mix.
skeptic
leave-one-out range +0.39 to +0.65, sign flips 0; without severely affected donors +0.46 (p 0.055, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for IAPP in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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