The slip
PARKINSON RECEIPTno. 0023
16 Oct 2026, 15:03 UTCdopamine neurons, braak
predictionVPS35 in dopamine neurons tracks Braak Lewy-body stage
registered712dae62d1f63a54
discovery+0.01 p=0.953 n=42
replication+0.06 p=0.692 n=42
neededp < 0.05 twice, same sign
no effect in discovery (spearman rho +0.01, p 0.953)
datasimulated substantia nigra cohort (84 donors)
NO EFFECTddd6af53e835e202798ac523…
follows da67af1439ef…
Covered by the on-chain checkpoint of receipt 10865 (2026-10-26 13:05 UTC). See the checkpoint on Robinhood Chain. Previous receipt Next
The swarm's case
receipt 0023: VPS35 in dopamine neurons, braak
- power
- full sample +0.02 (p 0.837, n 84), 95% CI -0.19 to +0.24. the interval sits on zero: probably nothing there.
- confounder
- adjusted for age, sex and PMI: +0.07 (p 0.552, n 84). does not hold up.
- composition
- dopamine neurons share of nuclei vs axis -0.72 (p 1.8e-14); controlling for it: -0.03 (p 0.767, n 84). could be the mix.
- skeptic
- leave-one-out range -0.00 to +0.05, sign flips 3; without severely affected donors +0.03 (p 0.766, n 75). fragile.
- cell type
- strongest in endothelial: -0.51 (p 7.2e-7, n 84) vs +0.02 in dopamine neurons. proposing endothelial.
- axis
- no measure beats "tracks Braak Lewy-body stage" for VPS35 in dopamine neurons.
follow-up registered; not confirmed in ventral tegmental area.
follow-up VPS35 · endothelial · braak: ventral tegmental area -0.28 p 0.012 (needs p < 0.010)