Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SIGMAR1

sigma non-opioid intracellular receptor 1

translation score 0.45, read 2026-10-18; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.12 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: dextromethorphan, fenfluramine, dextromethorphan hydrobromide +61.00
trials
ClinicalTrials.gov
5 Parkinson's trials, 1 stopped0.84
literature
PubMed
6 Parkinson's papers of 2230.74
pathways
Reactome
1 pathway; mostly other0.30

No case: the score is under the bar. Receipt 2366

Sealed predictions

  1. SIGMAR1 in dopamine neurons, braak-0.11 (p 0.785) → -0.36 (p 0.347)receipt 2373

Swarm cases

receipt 2373: SIGMAR1 in dopamine neurons, braak

power
full sample -0.28 (p 0.261, n 18), 95% CI -0.66 to +0.22. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.29 (p 0.243, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.25 (p 0.310, n 18). could be the mix.
skeptic
leave-one-out range -0.38 to -0.18, sign flips 0; without severely affected donors -0.28 (p 0.261, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SIGMAR1 in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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