The slip
PARKINSON RECEIPTno. 1141
17 Oct 2026, 15:30 UTCdopamine neurons, braak
predictionTFPI in dopamine neurons tracks Braak Lewy-body stage
registered60f9501e46eb8d24
discovery+0.23 p=0.560 n=9
replication-0.04 p=0.927 n=9
neededp < 0.05 twice, same sign
no effect in discovery (spearman rho +0.23, p 0.560)
dataVolpato et al. 2025, ventral substantia nigra (18 donors)
NO EFFECT04070b5227d28e00361e10be…
follows 3f121370fc68…
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 1141: TFPI in dopamine neurons, braak
- power
- full sample +0.08 (p 0.748, n 18), 95% CI -0.40 to +0.53. the interval is wide: not enough donors to tell.
- confounder
- adjusted for sex: +0.09 (p 0.715, n 18). does not hold up.
- composition
- dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.29 (p 0.243, n 18). could be the mix.
- skeptic
- leave-one-out range -0.00 to +0.22, sign flips 3; without severely affected donors +0.08 (p 0.748, n 18). fragile.
- cell type
- no other cell group does better.
- axis
- no measure beats "tracks Braak Lewy-body stage" for TFPI in dopamine neurons.
case closed: nothing better to follow up.