Evidence map›Paper›PMID 10420009›Full record

ArticleThe Journal of physiology1999

A study of the voltage dependence of capsaicin-activated membrane currents in rat sensory neurones before and after acute desensitization.

A S Piper, J C Yeats, S Bevan, R J Docherty

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

44 citing papers in PubMed, 96 citations in OpenAlex.

  1. Review
  2. Article
  3. TRP Channels Regulation of Rho GTPases in Brain Context and Diseases.Frontiers in cell and developmental biology · 2020
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  6. Inhibitory effect ofExperimental and therapeutic medicine · 2017
    Article
  7. TRPV1: A Target for Rational Drug Design.Pharmaceuticals (Basel, Switzerland) · 2016
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Mode of action of cytokines on nociceptive neurons.Experimental brain research · 2009
    Review
  14. A transient receptor potential-like channel mediates synaptic transmission in rod bipolar cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  15. Article
  16. Article
  17. TRPV1: on the road to pain relief.Current molecular pharmacology · 2008
    Review
  18. Article
  19. Article
  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

4 authors at 2 institutions in 1 country.

A S PiperDepartment of Pharmacology, Guy's, King's and St Thomas' Schools of Medicine, Dentistry and Biomedical Sciences, King's College London, St Thomas' Campus, Lambeth Palace Road, London SE1 7EH, UK.
J C Yeats
S Bevan
R J Docherty
King's College London · GBNovartis (United Kingdom) · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

1. Responses to capsaicin in isolated sensory neurones have been shown to desensitize in a Ca2+- and voltage-dependent manner. We have studied desensitization of capsaicin-activated currents in cultured adult rat dorsal root ganglion (DRG) neurones over a range of membrane potentials using whole-cell patch-clamp techniques. 2. Acute desensitization of responses to capsaicin (0.5 microM) was significantly less when the holding potential (Vh) was +40 mV rather than -60 mV. This was not due only to reduced Ca2+ entry as the response to capsaicin was desensitized by the same amount whether prior exposure to capsaicin was at -60 or +40 mV. The I-V relationship for capsaicin-induced current, determined using a voltage step protocol, was outwardly rectifying and during the acute phase of desensitization the degree of outward rectification increased. 3. Acute desensitization and the increase in outward rectification that accompanied desensitization were inhibited when cells were dialysed with the rapid Ca2+ chelator BAPTA. Addition of a pseudosubstrate inhibitor of the Ca2+-calmodulin-dependent enzyme calcineurin (CI, 100 microM) prevented the increase in outward rectification although it did not cause a significant decrease of acute desensitization. 4. Removal of external Ca2+ or Mg2+ did not reverse the increase in outward rectification of capsaicin-activated current after Ca2+-dependent desensitization had occurred. This indicates that a voltage-dependent block of the capsaicin-activated ion channel by Ca2+ or Mg2+ was not responsible for the observed changes in the properties of the capsaicin-activated conductance.

Indexed as

AnimalsCalcineurinCalcineurin InhibitorsCalciumCalcium SignalingCapsaicinChelating AgentsEgtazic AcidElectric StimulationElectrophysiologyGanglia, SpinalIon Channel GatingIon ChannelsMagnesiumMaleMembrane Potentials1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acidCalcineurinCalcineurin InhibitorsCalciumCapsaicinChelating AgentsEgtazic AcidIon ChannelsMagnesium

Identifiers

PMID10420009
PMCPMC2269463
OpenAlexW1999939316

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.