Evidence map›Paper›PMID 8584405›Full record

ArticlePflugers Archiv : European journal of physiology1995

Dihydropyridines, phenylalkylamines and benzothiazepines block N-, P/Q- and R-type calcium currents.

S Diochot, S Richard, M Baldy-Moulinier, J Nargeot, J Valmier

Abstract read
PubMed Publisher
In one paragraph

Article in Pflugers Archiv : European journal of physiology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

25 citing papers in PubMed, 84 citations in OpenAlex.

  1. Article
  2. Stimulation or Cancellation of CaScientific reports · 2019
    Article
  3. Article
  4. Review
  5. Different Membrane Pathways Mediate CaBioMed research international · 2018
    Article
  6. Dihydropyridine calcium channel blockers and renal disease.Hypertension research : official journal of the Japanese Society of Hypertension · 2017
    Review
  7. Review
  8. Review
  9. Calcium channel blockers and dementia.British journal of pharmacology · 2013
    Review
  10. P/Q-type calcium channel modulators.British journal of pharmacology · 2012
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Role of hippocampal Cav1.2 Ca2+ channels in NMDA receptor-independent synaptic plasticity and spatial memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2005
    Article
  18. Molecular pharmacology of high voltage-activated calcium channels.Journal of bioenergetics and biomembranes · 2003
    Review
  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

5 authors at 1 institution in 1 country.

S DiochotInstitut de Biologie, Boulevard Henri IV, F-34060 Montpellier Cedex, France.
S Richard
M Baldy-Moulinier
J Nargeot
J Valmier
Centre de Recherche en Biologie cellulaire de Montpellier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We compared the effects of representative members of three major classes of cardiac L-type channel antagonists, i.e. dihydropyridines (DHPs), phenylalkylamines (PAAs) and benzothiazepines (BTZs) on high-voltage-activated (HVA) Ca2+ channel currents recorded from a holding potential of -100 mV in rat ventricular cells, mouse sensory neurons and rat motoneurons. Nimodipine (DHP), verapamil (PAA) and diltiazem (BTZ) block the cardiac L-type Ca2+ channel current (EC50: 1 microM, 4 microM and 40 microM, respectively). At these concentrations, the drugs could also inhibit HVA Ca2+ channel currents in both sensory and motor neurons. Large blocking effects (> 50%) could be observed at 2-10 times these concentrations. The omega -conotoxin-GVIA-sensitive (omega -CTx-GVIA, N-type), omega -agatoxin-IVA-sensitive (omega -Aga-IVA, P- and Q-types) and non-L-type omega -CTx-GVIA-, omega -Aga-IVA-insensitive (R-types) currents accounted for more than 90% of the global current. Furthermore, our data showed that omega -CTx-GVIA and omega -Aga-IVA spare L-type currents and have only additive blocking effects on neuronal HVA currents. We conclude that DHPs, PAAs and BTZs have substantial inhibitory effects on neuronal non-L-type Ca2+ channels. Inhibitions occur at concentrations that are not maximally active on cardiac L-type Ca2+ channels.

Indexed as

AnimalsCalcium Channel BlockersCalcium ChannelsDihydropyridinesDiltiazemGanglia, SpinalHeartHomovanillic AcidIn Vitro TechniquesIon Channel GatingMiceMotor NeuronsMyocardiumNeurons, AfferentNimodipineomega-Agatoxin IVACalcium Channel BlockersCalcium ChannelsDihydropyridinesDiltiazemHomovanillic AcidNimodipineomega-Agatoxin IVAomega-Conotoxin GVIAPeptidesSpider VenomsVerapamil

Identifiers

PMID8584405
OpenAlexW1971722360

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.