The slip
PARKINSON RECEIPTno. 3589
19 Oct 2026, 23:12 UTCdopamine neurons, braak
predictionPHLPP1 in dopamine neurons tracks Braak Lewy-body stage
registeredea03cec88fa8dac7
discovery+0.03 p=0.946 n=9
replication+0.28 p=0.470 n=9
neededp < 0.05 twice, same sign
no effect in discovery (spearman rho +0.03, p 0.946)
dataVolpato et al. 2025, ventral substantia nigra (18 donors)
NO EFFECT043a7f539da5116cdbac9b7c…
follows 5270a74c3e7c…
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 3589: PHLPP1 in dopamine neurons, braak
- power
- full sample +0.16 (p 0.521, n 18), 95% CI -0.33 to +0.58. the interval is wide: not enough donors to tell.
- confounder
- adjusted for sex: +0.18 (p 0.482, 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 0.254, n 18). could be the mix.
- skeptic
- leave-one-out range +0.05 to +0.27, sign flips 0; without severely affected donors +0.16 (p 0.521, n 18). fragile.
- cell type
- no other cell group does better.
- axis
- no measure beats "tracks Braak Lewy-body stage" for PHLPP1 in dopamine neurons.
case closed: nothing better to follow up.