Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SLC1A1

solute carrier family 1 member 1

translation score 0.57, read 2026-10-22; 2 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.03 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including oligodendrocyte progenitor cells; strongest in proximal tubule cells0.75
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
4 Parkinson's papers of 2470.79
pathways
Reactome
3 pathways; mostly dopamine synapse1.00
proposal for SLC1A1, translation score 0.57

Knock down and overexpress SLC1A1 in oligodendrocytes; measure evoked dopamine release and dopamine transporter uptake and α-synuclein uptake and myelin basic protein output under oxidative stress.

Cell type
oligodendrocytes
Direction
Both arms: public data does not say which way helps.
Molecular readout
evoked dopamine release and dopamine transporter uptake
Functional readout
α-synuclein uptake and myelin basic protein output under oxidative stress
Rule-out
If neither arm moves evoked dopamine release by 20% or more against non-targeting and empty-vector controls, across three independent differentiations, the hypothesis is wrong.
Lab request
CRISPRi knockdown and lentiviral overexpression of SLC1A1 in iPSC-derived oligodendrocytes; n = 3 differentiations; readouts: evoked dopamine release and dopamine transporter uptake; α-synuclein uptake and myelin basic protein output under oxidative stress. Controls: non-targeting guide, empty vector. About 8 to 10 weeks, most of it differentiation.

Sealed predictions

  1. SLC1A1 in dopamine neurons, braak-0.02 (p 0.964) → -0.29 (p 0.457)receipt 6324
  2. SLC1A1 in oligodendrocytes, braak-0.29 (p 0.457) → +0.51 (p 0.165)receipt 6323

Swarm cases

receipt 6324: SLC1A1 in dopamine neurons, braak

power
full sample -0.15 (p 0.544, n 18), 95% CI -0.58 to +0.34. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.20 (p 0.424, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.19 (p 0.455, n 18). could be the mix.
skeptic
leave-one-out range -0.29 to -0.04, sign flips 0; without severely affected donors -0.15 (p 0.544, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SLC1A1 in dopamine neurons.

case closed: nothing better to follow up.

receipt 6323: SLC1A1 in oligodendrocytes, braak

power
full sample +0.09 (p 0.728, n 18), 95% CI -0.40 to +0.53. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.01 (p 0.976, n 18). does not hold up.
composition
oligodendrocytes share of nuclei vs axis +0.03 (p 0.915); controlling for it: -0.06 (p 0.800, n 18). could be the mix.
skeptic
leave-one-out range -0.02 to +0.22, sign flips 1; without severely affected donors +0.09 (p 0.728, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SLC1A1 in oligodendrocytes.

case closed: nothing better to follow up.

Receipts

loading the receipts