Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

DPP4

dipeptidyl peptidase 4

translation score 0.37, read 2026-10-19; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.10 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced outside the brain (prostatic glandular cells)0.10
chemistry
Open Targets
compounds already reach it: omarigliptin, vildagliptin, trelagliptin succinate +181.00
trials
ClinicalTrials.gov
3 Parkinson's trials, 0 stopped1.00
literature
PubMed
56 Parkinson's papers of 6,8820.47
pathways
Reactome
2 pathways; mostly other0.30

No case: the score is under the bar. Receipt 2683

Sealed predictions

  1. DPP4 in dopamine neurons, braak+0.01 (p 0.982) → +0.48 (p 0.187)receipt 2691

Swarm cases

receipt 2691: DPP4 in dopamine neurons, braak

power
full sample +0.10 (p 0.696, n 18), 95% CI -0.39 to +0.54. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.11 (p 0.671, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.03 (p 0.915, n 18). could be the mix.
skeptic
leave-one-out range -0.01 to +0.24, sign flips 1; without severely affected donors +0.10 (p 0.696, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for DPP4 in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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