Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

VPS13A

vacuolar protein sorting 13 homolog A

translation score 0.33, read 2026-10-20; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.06 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
no Parkinson's trials on record: an open field1.00
literature
PubMed
29 Parkinson's papers of 2270.55
pathways
Reactome
in no curated pathway0.00

No case: the score is under the bar. Receipt 4701

Sealed predictions

  1. VPS13A in dopamine neurons, braak+0.55 (p 0.122) → +0.42 (p 0.258)receipt 4707

Swarm cases

receipt 4707: VPS13A in dopamine neurons, braak

power
full sample +0.49 (p 0.040, n 18), 95% CI +0.03 to +0.78. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: +0.51 (p 0.030, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.57 (p 0.014, n 18). not the mix.
skeptic
leave-one-out range +0.43 to +0.67, sign flips 0; without severely affected donors +0.49 (p 0.040, n 18). robust.
cell type
strongest in OPCs: -0.62 (p 0.0057, n 18) vs +0.49 in dopamine neurons. proposing OPCs.
axis
no measure beats "tracks Braak Lewy-body stage" for VPS13A in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up VPS13A · OPCs · braak: substantia nigra, an independent cohort (Parkinson's or LBD vs controls) +0.60 p 0.033 (needs p < 4.2e-4)

Receipts

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