The slip
PARKINSON RECEIPTno. 0359
16 Oct 2026, 22:52 UTCdopamine neurons, braak
predictionMDN1 in dopamine neurons tracks Braak Lewy-body stage
registeredacac8e3b9df91693
discovery+0.30 p=0.426 n=9
replication-0.62 p=0.078 n=9
neededp < 0.05 twice, same sign
no effect in discovery (spearman rho +0.30, p 0.426)
dataVolpato et al. 2025, ventral substantia nigra (18 donors)
NO EFFECT67d18308c92e0ec0cfcb68af…
follows 3890b3859f70…
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 0359: MDN1 in dopamine neurons, braak
- power
- full sample -0.02 (p 0.942, n 18), 95% CI -0.48 to +0.45. the interval is wide: not enough donors to tell.
- confounder
- adjusted for sex: +0.04 (p 0.861, n 18). does not hold up.
- composition
- dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.07 (p 0.787, n 18). could be the mix.
- skeptic
- leave-one-out range -0.14 to +0.10, sign flips 7; without severely affected donors -0.02 (p 0.942, n 18). fragile.
- cell type
- no other cell group does better.
- axis
- no measure beats "tracks Braak Lewy-body stage" for MDN1 in dopamine neurons.
case closed: nothing better to follow up.