Evidence map›Paper›PMID 25329344›Full record

ArticleeLife2014

Non-linear developmental trajectory of electrical phenotype in rat substantia nigra pars compacta dopaminergic neurons.

Martial A Dufour, Adele Woodhouse, Julien Amendola, Jean-Marc Goaillard

Abstract read
In one paragraph

Article in eLife, 2014. 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
–field-weighted citation impact
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.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Morphological Determinants of Cell-to-Cell Variations in Action Potential Dynamics in Substantia Nigra Dopaminergic Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  6. Article
  7. Article
  8. Moderate Changes in COiScience · 2020
    Article
  9. Article
  10. Article
  11. Robustness to Axon Initial Segment Variation Is Explained by Somatodendritic Excitability in Rat Substantia Nigra Dopaminergic Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  12. Article
  13. Article
  14. Differential Somatic Ca2+ Channel Profile in Midbrain Dopaminergic Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  15. Article
  16. Article
  17. Article
  18. Article
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

4 authors.

Martial A DufourInserm UMR 1072, Faculté de Médecine Secteur Nord, Université de la Méditerranée, Marseille, France.
Adele WoodhouseInserm UMR 1072, Faculté de Médecine Secteur Nord, Université de la Méditerranée, Marseille, France.
Julien AmendolaInserm UMR 1072, Faculté de Médecine Secteur Nord, Université de la Méditerranée, Marseille, France.
Jean-Marc GoaillardInserm UMR 1072, Faculté de Médecine Secteur Nord, Université de la Méditerranée, Marseille, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neurons have complex electrophysiological properties, however, it is often difficult to determine which properties are the most relevant to neuronal function. By combining current-clamp measurements of electrophysiological properties with multi-variate analysis (hierarchical clustering, principal component analysis), we were able to characterize the postnatal development of substantia nigra dopaminergic neurons' electrical phenotype in an unbiased manner, such that subtle changes in phenotype could be analyzed. We show that the intrinsic electrical phenotype of these neurons follows a non-linear trajectory reaching maturity by postnatal day 14, with two developmental transitions occurring between postnatal days 3-5 and 9-11. This approach also predicted which parameters play a critical role in phenotypic variation, enabling us to determine (using pharmacology, dynamic-clamp) that changes in the leak, sodium and calcium-activated potassium currents are central to these two developmental transitions. This analysis enables an unbiased definition of neuronal type/phenotype that is applicable to a range of research questions.

Indexed as

Electrophysiological PhenomenaNonlinear DynamicsAction PotentialsAnimalsAnimals, NewbornCell MembraneCluster AnalysisDopaminergic NeuronsFemaleMaleMultivariate AnalysisNeural InhibitionPars CompactaPhenotypePrincipal Component AnalysisRats, Wistarelectrophysiologyneuroscienceprincipal component analysisratsubstantia nigra

Identifiers

PMID25329344
PMCPMC4241557

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.