Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

HPCA

hippocalcin

translation score 0.43, read 2026-10-24; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.01 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including brain inhibitory neurons; strongest in early spermatids0.75
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
7 Parkinson's papers of 2820.73
pathways
Reactome
in no curated pathway0.00

No case: the score is under the bar. Receipt 8697

Sealed predictions

  1. HPCA in dopamine neurons, braak-0.60 (p 0.089) → +0.12 (p 0.749)receipt 8707

Swarm cases

receipt 8707: HPCA in dopamine neurons, braak

power
full sample -0.16 (p 0.532, n 18), 95% CI -0.58 to +0.33. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.19 (p 0.439, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.42 (p 0.084, n 18). could be the mix.
skeptic
leave-one-out range -0.28 to -0.04, sign flips 0; without severely affected donors -0.16 (p 0.532, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for HPCA in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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