Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

TPH2

tryptophan hydroxylase 2

translation score 0.51, read 2026-10-21; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.05 from other evidence0.00
cell type
Human Protein Atlas
enriched in the midbrain (632 nTPM), where the nigral dopamine neurons sit0.90
chemistry
Open Targets
compounds already reach it: telotristat, telotristat ethyl, telotristat etiprate1.00
trials
ClinicalTrials.gov
1 Parkinson's trial, 0 stopped1.00
literature
PubMed
20 Parkinson's papers of 1,2310.60
pathways
Reactome
1 pathway; mostly other0.30

No case: the score is under the bar. Receipt 5509

Sealed predictions

  1. TPH2 in dopamine neurons, braak+0.38 (p 0.309) → +0.41 (p 0.277)receipt 5518

Swarm cases

receipt 5518: TPH2 in dopamine neurons, braak

power
full sample +0.38 (p 0.116, n 18), 95% CI -0.10 to +0.72. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.37 (p 0.132, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.28 (p 0.269, n 18). could be the mix.
skeptic
leave-one-out range +0.29 to +0.53, sign flips 0; without severely affected donors +0.38 (p 0.116, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for TPH2 in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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