Evidence map›Paper›PMID 9254661›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience1997

Beta-adrenergic stimulation selectively inhibits long-lasting L-type calcium channel facilitation in hippocampal pyramidal neurons.

R K Cloues, S J Tavalin, N V Marrion

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-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

19 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Review
  3. Activity-Dependent Facilitation of CaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Activation kinetics of the slow afterhyperpolarization in hippocampal CA1 neurons.Pflugers Archiv : European journal of physiology · 2004
    Article
  11. Article
  12. Article
  13. Sustained activation of hippocampal Lp-type voltage-gated calcium channels by tetanic stimulation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2000
    Article
  14. Article
  15. Article
  16. Article
  17. Anomalous L-type calcium channels of rat spinal motoneurons.The Journal of general physiology · 1999
    Article
  18. An apamin-sensitive Ca2+-activated K+ current in hippocampal pyramidal neurons.Proceedings of the National Academy of Sciences of the United States of America · 1999
    Article
  19. Overview of voltage-dependent calcium channels.Journal of bioenergetics and biomembranes · 1998
    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

3 authors at 2 institutions in 1 country.

R K ClouesVollum Institute, Oregon Health Sciences University, Portland, Oregon 97201-3098, USA.
S J Tavalin
N V Marrion
Vollum Institute · USOregon Health & Science University · US

Funding

MECHANISMS OF M-CHANNEL MODULATIONR01NS029806 · NINDS · UNIVERSITY OF BRISTOL · PI MARRION, NEIL V · 1997 to 2000
$112k
MECHANISMS OF M-CHANNEL MODULATIONR29NS029806 · NINDS · STATE UNIVERSITY NEW YORK STONY BROOK · PI MARRION, NEIL V · 1992 to 1996
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MECHANISMS OF M-CHANNEL MODULATIONR55NS029806 · NINDS · STATE UNIVERSITY NEW YORK STONY BROOK · PI MARRION, NEIL V · 1991 to 1991
–
NINDS NIH HHS NS29806
6 · The paper itself

Abstract

L-type calcium channels are abundant in hippocampal pyramidal neurons and are highly clustered at the base of the major dendrites. However, little is known of their function in these neurons. Single-channel recording using a low concentration of permeant ion reveals a long-lasting facilitation of L-type channel activity that is induced by a depolarizing prepulse or a train of action potential waveforms. This facilitation exhibits a slow rise, peaking 0.5-1 sec after the train and decaying over several seconds. We have termed this behavior "delayed facilitation," because of the slow onset. Delayed facilitation results from an increase in opening frequency and the recruitment of longer duration openings. This behavior is observed at all membrane potentials between -20 and -60 mV, with the induction and magnitude of facilitation being insensitive to voltage. beta-Adrenergic receptor activation blocks induction of delayed facilitation but does not significantly affect normal L-type channel activity. Delayed facilitation of L-type calcium channels provides a prolonged source of calcium entry at negative membrane potentials. This behavior may underlie calcium-dependent events that are inhibited by beta-adrenergic receptor activation, such as the slow afterhyperpolarization in hippocampal neurons.

Indexed as

AnimalsCalcium ChannelsElectrophysiologyHippocampusPyramidal CellsRatsRats, Sprague-DawleyReaction TimeReceptors, Adrenergic, betaCalcium ChannelsReceptors, Adrenergic, beta

Identifiers

PMID9254661
PMCPMC6573143
OpenAlexW1528691968

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.