Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SIRPA

signal regulatory protein alpha

translation score 0.47, read 2026-10-24; 2 sealed predictions, 0 held; 3 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.01 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including astrocytes; strongest in neutrophils0.75
chemistry
Open Targets
reachable by antibody0.45
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
3 Parkinson's papers of 2570.82
pathways
Reactome
3 pathways; mostly other0.30

No case: the score is under the bar. Receipt 8852

Sealed predictions

  1. SIRPA in dopamine neurons, braak-0.34 (p 0.375) → -0.12 (p 0.767)receipt 8860
  2. SIRPA in astrocytes, braak+0.05 (p 0.891) → -0.55 (p 0.121)receipt 8859

Swarm cases

receipt 8860: SIRPA in dopamine neurons, braak

power
full sample -0.08 (p 0.767, n 18), 95% CI -0.52 to +0.41. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.08 (p 0.767, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.21 (p 0.398, n 18). could be the mix.
skeptic
leave-one-out range -0.21 to +0.05, sign flips 2; without severely affected donors -0.08 (p 0.767, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SIRPA in dopamine neurons.

case closed: nothing better to follow up.

receipt 8859: SIRPA in astrocytes, braak

power
full sample -0.26 (p 0.306, n 18), 95% CI -0.65 to +0.24. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.26 (p 0.306, n 18). does not hold up.
composition
astrocytes share of nuclei vs axis -0.21 (p 0.413); controlling for it: -0.26 (p 0.306, n 18). could be the mix.
skeptic
leave-one-out range -0.34 to -0.16, sign flips 0; without severely affected donors -0.26 (p 0.306, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SIRPA in astrocytes.

case closed: nothing better to follow up.

Receipts

loading the receipts