Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SEMA5A

semaphorin 5A

translation score 0.46, read 2026-10-22; 2 sealed predictions, 0 held; 3 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.04 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including oligodendrocyte progenitor cells; strongest in podocytes0.75
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
9 Parkinson's papers of 1500.70
pathways
Reactome
3 pathways; mostly other0.30

No case: the score is under the bar. Receipt 6119

Sealed predictions

  1. SEMA5A in dopamine neurons, braak-0.29 (p 0.443) → +0.00 (p 1.000)receipt 6127
  2. SEMA5A in oligodendrocytes, braak-0.31 (p 0.414) → +0.27 (p 0.485)receipt 6126

Swarm cases

receipt 6127: SEMA5A in dopamine neurons, braak

power
full sample -0.16 (p 0.515, n 18), 95% CI -0.59 to +0.33. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.14 (p 0.585, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.40 (p 0.099, n 18). could be the mix.
skeptic
leave-one-out range -0.31 to -0.05, sign flips 0; without severely affected donors -0.16 (p 0.515, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SEMA5A in dopamine neurons.

case closed: nothing better to follow up.

receipt 6126: SEMA5A in oligodendrocytes, braak

power
full sample -0.10 (p 0.696, n 18), 95% CI -0.54 to +0.39. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.10 (p 0.696, n 18). does not hold up.
composition
oligodendrocytes share of nuclei vs axis +0.03 (p 0.915); controlling for it: -0.21 (p 0.408, n 18). could be the mix.
skeptic
leave-one-out range -0.21 to +0.01, sign flips 2; without severely affected donors -0.10 (p 0.696, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SEMA5A in oligodendrocytes.

case closed: nothing better to follow up.

Receipts

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