Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

DHFR

dihydrofolate reductase

translation score 0.52, 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
compounds already reach it: methotrexate sodium, methotrexate, pemetrexed dipotassium +51.00
trials
ClinicalTrials.gov
2 Parkinson's trials, 0 stopped1.00
literature
PubMed
4 Parkinson's papers of 4,7800.79
pathways
Reactome
3 pathways; mostly energy0.60

No case: the score is under the bar. Receipt 7799

Sealed predictions

  1. DHFR in dopamine neurons, braak+0.27 (p 0.489) → +0.02 (p 0.963)receipt 7807

Swarm cases

receipt 7807: DHFR in dopamine neurons, braak

power
full sample +0.12 (p 0.646, n 18), 95% CI -0.37 to +0.55. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.06 (p 0.800, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.12 (p 0.627, n 18). could be the mix.
skeptic
leave-one-out range +0.01 to +0.25, sign flips 0; without severely affected donors +0.12 (p 0.646, n 18). fragile.
cell type
strongest in OPCs: -0.63 (p 0.0049, n 18) vs +0.12 in dopamine neurons. proposing OPCs.
axis
no measure beats "tracks Braak Lewy-body stage" for DHFR in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up DHFR · OPCs · braak: substantia nigra, an independent cohort (Parkinson's or LBD vs controls) +0.30 p 0.286 (needs p < 2.7e-4)

Receipts

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