Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 12278

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.08, p 0.833). This receipt's hash covers every field on it, plus the hash of receipt 12277, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 12278
    27 Oct 2026, 20:34 UTC

    ITGAV

    dopamine neurons, braak

    predictionITGAV in dopamine neurons tracks Braak Lewy-body stage

    registereda98d780347312ef0

    discovery-0.08 p=0.833 n=9

    replication+0.40 p=0.285 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.08, p 0.833)

    dataVolpato et al. 2025, ventral substantia nigra (18 donors)

    NO EFFECT

    e3688acfa147ea3ad4e5d0c3…
    follows 5761a43279d9…

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The swarm's case

receipt 12278: ITGAV in dopamine neurons, braak

power
full sample +0.07 (p 0.794, n 18), 95% CI -0.41 to +0.52. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.06 (p 0.800, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.02 (p 0.949, n 18). could be the mix.
skeptic
leave-one-out range -0.05 to +0.19, sign flips 4; without severely affected donors +0.07 (p 0.794, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for ITGAV in dopamine neurons.

case closed: nothing better to follow up.