Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SDHA

succinate dehydrogenase complex flavoprotein subunit A

translation score 0.54, read 2026-10-24; 2 sealed predictions, 0 held; 3 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.02 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including oligodendrocytes; strongest in renal collecting duct intercalated cells0.75
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
16 Parkinson's papers of 1,3120.63
pathways
Reactome
3 pathways; mostly mitochondrial quality control1.00

No case: the score is under the bar. Receipt 8566

Sealed predictions

  1. SDHA in dopamine neurons, braak+0.07 (p 0.849) → +0.24 (p 0.539)receipt 8574
  2. SDHA in oligodendrocytes, braak+0.57 (p 0.109) → +0.03 (p 0.946)receipt 8573

Swarm cases

receipt 8574: SDHA in dopamine neurons, braak

power
full sample +0.19 (p 0.439, n 18), 95% CI -0.30 to +0.61. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.19 (p 0.444, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.20 (p 0.424, n 18). could be the mix.
skeptic
leave-one-out range +0.14 to +0.36, sign flips 0; without severely affected donors +0.19 (p 0.439, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SDHA in dopamine neurons.

case closed: nothing better to follow up.

receipt 8573: SDHA in oligodendrocytes, braak

power
full sample +0.47 (p 0.051, n 18), 95% CI -0.00 to +0.77. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.59 (p 0.0095, n 18). holds up.
composition
oligodendrocytes share of nuclei vs axis +0.03 (p 0.915); controlling for it: +0.64 (p 0.0042, n 18). not the mix.
skeptic
leave-one-out range +0.40 to +0.56, sign flips 0; without severely affected donors +0.47 (p 0.051, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SDHA in oligodendrocytes.

case closed: nothing better to follow up.

Receipts

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