Evidence map›Paper›PMID 19073798›Full record

ArticleJournal of neurophysiology2009

Dopamine neuron responses depend exponentially on pacemaker interval.

Ilva Putzier, Paul H M Kullmann, John P Horn, Edwin S Levitan

Open access · greenAbstract read
In one paragraph

Article in Journal of neurophysiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-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

16 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Functioning of K channels during sleep.Archives of insect biochemistry and physiology · 2022
    Review
  4. 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
  5. Article
  6. The effects of aging on substantia nigra dopamine neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  7. Article
  8. Pacemaker rate and depolarization block in nigral dopamine neurons: a somatic sodium channel balancing act.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
  9. Article
  10. Ca²⁺/cAMP-sensitive covariation of I(A) and I(H) voltage dependences tunes rebound firing in dopaminergic neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
  11. In vivo ethanol experience increases D(2) autoinhibition in the ventral tegmental area.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2011
    Article
  12. Article
  13. Article
  14. An intrinsic neuronal oscillator underlies dopaminergic neuron bursting.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  15. Cav1.3 channel voltage dependence, not Ca2+ selectivity, drives pacemaker activity and amplifies bursts in nigral dopamine neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  16. 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 at 1 institution in 1 country.

Ilva PutzierDepartment of Pharmacology, University of Pittsburgh, Pittsburgh, PA, USA.
Paul H M Kullmann
John P Horn
Edwin S Levitan
University of Pittsburgh · US

Funding

Regulation of Dopamine Neuron ExcitabilityR01NS053050 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LEVITAN, EDWIN S · 2005 to 2008
$1.2M
NINDS NIH HHS R01 NS-53050
6 · The paper itself

Abstract

Midbrain dopamine neuron activity results from the integration of the responses to metabo- and ionotropic receptors with the postsynaptic excitability of these intrinsic pacemakers. Interestingly, intrinsic pacemaker rate varies greatly between individual dopamine neurons and is subject to short- and long-term regulation. Here responses of substantia nigra dopamine neurons to defined dynamic-clamp stimuli were measured to quantify the impact of cell-to-cell variation in intrinsic pacemaker rate. Then this approach was repeated in single dopamine neurons in which pacemaker rate was altered by activation of muscarinic receptors or current injection. These experiments revealed a dramatic exponential dependence on pacemaker interval for the responses to voltage-gated A-type K+ channels, voltage-independent cation channels and ionotropic synapses. Likewise, responses to native metabotropic (GABAb and mGluR1) inhibitory synapses depended steeply on pacemaker interval. These results show that observed variations in dopamine neuron pacemaker rate are functionally significant because they produce a >10-fold difference in responses to diverse stimuli. Both the magnitude and the mathematical form of the relationship between pacemaker interval and responses were not previously anticipated.

Indexed as

Action PotentialsAnimalsAnimals, NewbornBiological ClocksBiophysical PhenomenaDopamineElectric StimulationExcitatory Amino Acid AntagonistsGABA AntagonistsIn Vitro TechniquesIon Channel GatingModels, NeurologicalMuscarineMuscarinic AgonistsNeural InhibitionNeuronsDopamineExcitatory Amino Acid AntagonistsGABA AntagonistsMuscarineMuscarinic AgonistsShal Potassium Channels

Identifiers

PMID19073798
PMCPMC2657079
OpenAlexW1964023154

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.