Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SMAD7

SMAD family member 7

translation score 0.50, read 2026-10-23; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.02 from other evidence0.00
cell type
Human Protein Atlas
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
reachable by antibody: mongersen sodium0.45
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
2 Parkinson's papers of 3,1390.85
pathways
Reactome
7 pathways; mostly immune signalling0.90

No case: the score is under the bar. Receipt 8041

Sealed predictions

  1. SMAD7 in dopamine neurons, braak-0.36 (p 0.347) → -0.42 (p 0.266)receipt 8048

Swarm cases

receipt 8048: SMAD7 in dopamine neurons, braak

power
full sample -0.36 (p 0.137, n 18), 95% CI -0.71 to +0.12. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.41 (p 0.089, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.48 (p 0.046, n 18). not the mix.
skeptic
leave-one-out range -0.51 to -0.28, sign flips 0; without severely affected donors -0.36 (p 0.137, n 18). fragile.
cell type
strongest in oligodendrocytes: -0.69 (p 0.0016, n 18) vs -0.36 in dopamine neurons. proposing oligodendrocytes.
axis
no measure beats "tracks Braak Lewy-body stage" for SMAD7 in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up SMAD7 · oligodendrocytes · braak: substantia nigra, an independent cohort (Parkinson's or LBD vs controls) -0.40 p 0.155 (needs p < 2.6e-4)

Receipts

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