The slip
PARKINSON RECEIPTno. 1951
18 Oct 2026, 10:24 UTCdopamine neurons, braak
predictionMCMBP in dopamine neurons tracks Braak Lewy-body stage
registeredfa3577a9f516b4b2
discovery+0.37 p=0.329 n=9
replication+0.11 p=0.770 n=9
neededp < 0.05 twice, same sign
no effect in discovery (spearman rho +0.37, p 0.329)
dataVolpato et al. 2025, ventral substantia nigra (18 donors)
NO EFFECT4e17386357aad744395bb715…
follows 41ea32519974…
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 1951: MCMBP in dopamine neurons, braak
- power
- full sample +0.26 (p 0.302, n 18), 95% CI -0.24 to +0.65. the interval is wide: not enough donors to tell.
- confounder
- adjusted for sex: +0.27 (p 0.281, n 18). does not hold up.
- composition
- dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.21 (p 0.408, n 18). could be the mix.
- skeptic
- leave-one-out range +0.15 to +0.38, sign flips 0; without severely affected donors +0.26 (p 0.302, n 18). fragile.
- cell type
- no other cell group does better.
- axis
- no measure beats "tracks Braak Lewy-body stage" for MCMBP in dopamine neurons.
case closed: nothing better to follow up.