Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

P4HA2

prolyl 4-hydroxylase subunit alpha 2

translation score 0.47, read 2026-10-18; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.21 from other evidence0.00
cell type
Human Protein Atlas
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
no papers tie it to Parkinson's yet1.00
pathways
Reactome
2 pathways; mostly other0.30

No case: the score is under the bar. Receipt 1997

Sealed predictions

  1. P4HA2 in dopamine neurons, braak-0.40 (p 0.285) → -0.15 (p 0.705)receipt 2004

Swarm cases

receipt 2004: P4HA2 in dopamine neurons, braak

power
full sample -0.34 (p 0.161, n 18), 95% CI -0.70 to +0.15. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.35 (p 0.156, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.43 (p 0.079, n 18). could be the mix.
skeptic
leave-one-out range -0.49 to -0.26, sign flips 0; without severely affected donors -0.34 (p 0.161, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for P4HA2 in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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