Evidence map›Paper›PMID 10777775›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2000

Reluctant gating of single N-type calcium channels during neurotransmitter-induced inhibition in bullfrog sympathetic neurons.

H K Lee, K S Elmslie

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2000. 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
1.5field-weighted citation impact, top 18% 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, 45 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Bile Acid Inhibition of N-type Calcium Channel Currents from Sympathetic Ganglion Neurons.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2012
    Article
  5. Review
  6. Article
  7. Origin of the voltage dependence of G-protein regulation of P/Q-type Ca2+ channels.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2008
    Article
  8. G-proteins modulate cumulative inactivation of N-type (Cav2.2) calcium channels.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2006
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Neurotransmitter modulation of neuronal calcium channels.Journal of bioenergetics and biomembranes · 2003
    Review
  14. Beta subunits of voltage-gated calcium channels.Journal of bioenergetics and biomembranes · 2003
    Review
  15. cGMP/protein kinase G-dependent inhibition of N-type Ca2+ channels induced by nitric oxide in human neuroblastoma IMR32 cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2002
    Article
  16. Article
  17. G-protein inhibition of N- and P/Q-type calcium channels: distinctive elementary mechanisms and their functional impact.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2001
    Article
  18. Review
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

2 authors at 2 institutions in 2 countries.

H K LeeDepartment of Pharmacology, Chonbuk University Dental School, Chonju, Korea 561-756.
K S Elmslie
Jeonbuk National University · KRTulane University · US

Funding

CALCIUM CHANNELS IN SYMPATHETIC NEURONSR29NS033671 · NINDS · TULANE UNIVERSITY OF LOUISIANA · PI ELMSLIE, KEITH S · 1996 to 2000
$106k
NINDS NIH HHS NS33671NINDS NIH HHS R29 NS033671
6 · The paper itself

Abstract

Whole-cell recordings have been used to extensively characterize the voltage-dependent inhibition of N-type calcium current induced by various neurotransmitters. Results from these studies have yielded several predictions on the effect of inhibition on N-channel gating, namely delayed channel opening and inhibition-induced reluctant openings. Previous single N-channel studies observed delayed channel opening but failed to find reluctant openings. However, strong depolarizations may be necessary to see reluctant openings, but this was not tested. We have examined N-channel gating at voltages depolarized to those used previously and found a neurotransmitter-induced open state that has properties predicted for the reluctant open state. The openings had lower open probability (P(o)) and brief open times compared to the dominant gating state observed in control (high P(o)). These reluctant events were reduced after strong depolarizing pulses used to reverse inhibition. The threshold voltage for activation of reluctant events was approximately 30 mV depolarized to that of the normal gating state (high P(o)). However, an action potential will provide sufficient depolarization to open reluctant N-channels.

Indexed as

Adrenergic FibersAnimalsCalcium Channels, N-TypeIon Channel GatingNeurotransmitter AgentsNorepinephrinePatch-Clamp TechniquesRana catesbeianaSympathomimeticsCalcium Channels, N-TypeNeurotransmitter AgentsNorepinephrineSympathomimetics

Identifiers

PMID10777775
PMCPMC6773141
OpenAlexW2147019648

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.