Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

HLA-DRA

major histocompatibility complex, class II, DR alpha

translation score 0.48, read 2026-10-23; 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
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
25 Parkinson's papers of 6340.57
pathways
Reactome
10 pathways; mostly dopamine synapse1.00

No case: the score is under the bar. Receipt 7034

Sealed predictions

  1. HLA-DRA in dopamine neurons, braak-0.17 (p 0.668) → +0.42 (p 0.258)receipt 7042

In the sealed studies

Swarm cases

receipt 7042: HLA-DRA in dopamine neurons, braak

power
full sample +0.19 (p 0.455, n 18), 95% CI -0.31 to +0.60. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.13 (p 0.603, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.06 (p 0.827, n 18). could be the mix.
skeptic
leave-one-out range +0.10 to +0.37, sign flips 0; without severely affected donors +0.19 (p 0.455, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for HLA-DRA in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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