Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SPARC

secreted protein acidic and cysteine rich

translation score 0.43, read 2026-10-26; 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
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
reachable by antibody0.45
trials
ClinicalTrials.gov
2 Parkinson's trials, 0 stopped1.00
literature
PubMed
11 Parkinson's papers of 3,4130.67
pathways
Reactome
4 pathways; mostly growth signalling0.60

No case: the score is under the bar. Receipt 10563

Sealed predictions

  1. SPARC in dopamine neurons, braak+0.16 (p 0.685) → +0.50 (p 0.170)receipt 10570

Swarm cases

receipt 10570: SPARC in dopamine neurons, braak

power
full sample +0.33 (p 0.185, n 18), 95% CI -0.16 to +0.69. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.23 (p 0.360, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.22 (p 0.389, n 18). could be the mix.
skeptic
leave-one-out range +0.26 to +0.51, sign flips 0; without severely affected donors +0.33 (p 0.185, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SPARC in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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