Evidence map›Paper›PMID 8753877›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience1996

Multiple subtypes of voltage-gated calcium channel mediate transmitter release from parasympathetic neurons in the mouse bladder.

S A Waterman

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 72 citations in OpenAlex.

  1. Article
  2. Selective reduction of neurotransmitter release by cAMP-dependent pathways in mouse detrusor.American journal of physiology. Regulatory, integrative and comparative physiology · 2022
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  11. John Newsom-Davis: clinician-scientist and so much more.Brain : a journal of neurology · 2011
    Article
  12. Article
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  15. Article
  16. Article
  17. Review
  18. Article
  19. Lambert-Eaton myasthenic syndrome.Postgraduate medical journal · 1999
    Review
  20. 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

1 author at 1 institution in 1 country.

S A WatermanNeurosciences Group, Institute of Molecular Medicine, John Radcliffe Hospital, Headington, United Kingdom.
University of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Multiple subtypes of voltage-gated calcium channels are coupled to transmitter release from central neurons; however, only N-type channels have been shown to play a role in autonomic neurons. The aim of the present study was to investigate potential roles for other channel subtypes in transmitter release from parasympathetic neurons in the mouse bladder using calcium channel toxins alone and in combination. Transmitter release was measured indirectly by recording the contraction of bladder dome strips in response to electrical stimulation of the neurons by single pulses or trains of 20 pulses at 1-50 Hz. omega-Conotoxin-GVIA (GVIA) and omega-conotoxin-MVIIC (MVIIC) inhibited contractions in a concentration-dependent manner, with IC50 values of approximately 30 and 200 nM, respectively, at low stimulation frequencies. omega-Agatoxin-IVA (agatoxin) alone did not have any significant effect up to 300 nM. Cumulative addition of the toxins demonstrated that 300 nM agatoxin had a significant effect after N-type channels were blocked with 100 nM GVIA. MVIIC (3 microM) reduced the contraction amplitude further. Testing the toxins on the cholinergic or purinergic component of the contraction separately showed that acetylcholine release depends primarily on N-type channels and, to a lesser extent, on P- and Q-type channels, whereas ATP release involves predominantly P- and Q-type channels. In conclusion, parasympathetic neurons in the mouse bladder, like central neurons, use multiple calcium channel subtypes. Furthermore, the release of the two main transmitters in these neurons has differing dependencies on the calcium channel subtypes.

Indexed as

Ion Channel Gatingomega-ConotoxinsAnimalsCalcium Channel BlockersCalcium ChannelsElectrophysiologyHumansInfantMaleMiceMuscle ContractionNeuronsNeurotransmitter Agentsomega-Agatoxin IVAomega-Conotoxin GVIAParasympathetic Nervous SystemCalcium Channel BlockersCalcium ChannelsNeurotransmitter Agentsomega-Agatoxin IVAomega-Conotoxin GVIAomega-conotoxin-MVIIComega-ConotoxinsPeptidesPurinesSpider Venoms

Identifiers

PMID8753877
PMCPMC6579000
OpenAlexW1873394831

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.