Evidence map›Paper›PMID 32167609›Full record

ArticleAnnals of neurology2020

Human-Specific Transcriptome of Ventral and Dorsal Midbrain Dopamine Neurons.

Jimena Monzón-Sandoval, Ilaria Poggiolini, Tobias Ilmer, Richard Wade-Martins, Caleb Webber, Laura Parkkinen

Open access · hybridAbstract read
In one paragraph

Article in Annals of neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.8field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. New Multiomic Studies Shed Light on Cellular Diversity and Neuronal Susceptibility in Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2025
    Review
  2. Article
  3. The Formation and Function of the VTA Dopamine System.International journal of molecular sciences · 2024
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Insights into Neurodegeneration in Parkinson's Disease from Single-Cell and Spatial Genomics.Movement disorders : official journal of the Movement Disorder Society · 2023
    Article
  9. Review
  10. Review
  11. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Jimena Monzón-SandovalOxford Parkinson's Disease Centre, University of Oxford, Oxford.
Ilaria PoggioliniNuffield Department of Clinical Neurosciences, University of Oxford, Oxford.ORCID 0000-0001-5598-1262
Tobias IlmerNuffield Department of Clinical Neurosciences, University of Oxford, Oxford.
Richard Wade-MartinsOxford Parkinson's Disease Centre, University of Oxford, Oxford.
Caleb WebberOxford Parkinson's Disease Centre, University of Oxford, Oxford.
Laura ParkkinenOxford Parkinson's Disease Centre, University of Oxford, Oxford.ORCID 0000-0002-3392-8564
Nuffield Orthopaedic Centre · GBUniversity of Oxford · GB

Funding

Medical Research Council G1000691Medical Research Council MC_EX_MR/N50192X/1Medical Research Council MR/L022656/1Medical Research Council MR/L023784/1Medical Research Council MR/L023784/2Medical Research Council MR/M024962/1Medical Research Council MR/N029453/1Medical Research Council MR/P007058/1Parkinson's UK J-0901
6 · The paper itself

Abstract

objectiveNeuronal loss in the substantia nigra pars compacta (SNpc) in Parkinson disease (PD) is not uniform, as dopamine neurons from the ventral tier are lost more rapidly than those of the dorsal tier. Identifying the intrinsic differences that account for this differential vulnerability may provide a key for developing new treatments for PD.

methodsHere, we compared the RNA-sequenced transcriptomes of ~100 laser captured microdissected SNpc neurons from each tier from 7 healthy controls.

resultsExpression levels of dopaminergic markers were similar across the tiers, whereas markers specific to the neighboring ventral tegmental area were virtually undetected. After accounting for unwanted sources of variation, we identified 106 differentially expressed genes (DEGs) between the SNpc tiers. The genes higher in the dorsal/resistant SNpc tier neurons displayed coordinated patterns of expression across the human brain, their protein products had more interactions than expected by chance, and they demonstrated evidence of functional convergence. No significant shared functionality was found for genes higher in the ventral/vulnerable SNpc tier. Surprisingly but importantly, none of the identified DEGs was among the familial PD genes or genome-wide associated loci. Finally, we found some DEGs in opposite tier orientation between human and analogous mouse populations.

interpretationOur results highlight functional enrichments of vesicular trafficking, ion transport/homeostasis and oxidative stress genes showing higher expression in the resistant neurons of the SNpc dorsal tier. Furthermore, the comparison of gene expression variation in human and mouse SNpc populations strongly argues for the need of human-focused omics studies. ANN NEUROL 2020;87:853-868.

Indexed as

TranscriptomeAnimalsDopaminergic NeuronsGene Expression RegulationGenome-Wide Association StudyHealthy VolunteersHumansMesencephalonMiceParkinson DiseaseRNASubstantia NigraVentral Tegmental AreaRNA

Identifiers

PMID32167609
PMCPMC8651008
OpenAlexW3011580545

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.