Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

PIK3CA

phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha

translation score 0.53, read 2026-10-21; 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
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
compounds already reach it: panulisib, pilaralisib, izorlisib +291.00
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
14 Parkinson's papers of 9,8570.64
pathways
Reactome
60 pathways; mostly immune signalling0.90

No case: the score is under the bar. Receipt 5829

Sealed predictions

  1. PIK3CA in dopamine neurons, braak-0.38 (p 0.309) → +0.36 (p 0.336)receipt 5837

Swarm cases

receipt 5837: PIK3CA in dopamine neurons, braak

power
full sample -0.03 (p 0.901, n 18), 95% CI -0.49 to +0.44. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.04 (p 0.861, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.04 (p 0.881, n 18). could be the mix.
skeptic
leave-one-out range -0.15 to +0.09, sign flips 5; without severely affected donors -0.03 (p 0.901, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for PIK3CA in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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