Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

C4A

complement C4A (Chido/Rodgers blood group)

translation score 0.43, read 2026-10-22; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.03 from other evidence0.00
cell type
Human Protein Atlas
not detected in single-cell data0.00
chemistry
Open Targets
reachable by antibody0.45
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
4 Parkinson's papers of 1,9630.79
pathways
Reactome
6 pathways; mostly immune signalling0.90

No case: the score is under the bar. Receipt 6399

Sealed predictions

  1. C4A in dopamine neurons, braak-0.84 (p 0.004) → -0.22 (p 0.570)receipt 6406

Swarm cases

receipt 6406: C4A in dopamine neurons, braak

power
full sample -0.57 (p 0.013, n 18), 95% CI -0.82 to -0.14. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: -0.59 (p 0.011, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.72 (p 7.0e-4, n 18). not the mix.
skeptic
leave-one-out range -0.67 to -0.51, sign flips 0; without severely affected donors -0.57 (p 0.013, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for C4A in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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