Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SLC9A1

solute carrier family 9 member A1

translation score 0.55, read 2026-10-21; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.05 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 protein handling0.90

No case: the score is under the bar. Receipt 4915

Sealed predictions

  1. SLC9A1 in dopamine neurons, braak-0.79 (p 0.012) → -0.17 (p 0.663)receipt 4920

Swarm cases

receipt 4920: SLC9A1 in dopamine neurons, braak

power
full sample -0.49 (p 0.037, n 18), 95% CI -0.78 to -0.04. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: -0.54 (p 0.021, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.49 (p 0.039, n 18). not the mix.
skeptic
leave-one-out range -0.65 to -0.43, sign flips 0; without severely affected donors -0.49 (p 0.037, n 18). robust.
cell type
strongest in microglia: -0.64 (p 0.0045, n 18) vs -0.49 in dopamine neurons. proposing microglia.
axis
no measure beats "tracks Braak Lewy-body stage" for SLC9A1 in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up SLC9A1 · microglia · braak: substantia nigra, an independent cohort (Parkinson's or LBD vs controls) -0.57 p 0.041 (needs p < 4.0e-4)

Receipts

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