Evidence map›Paper›PMID 16037093›Full record

ArticleThe Journal of physiology2005

Presynaptic N-type and P/Q-type Ca2+ channels mediating synaptic transmission at the calyx of Held of mice.

Taro Ishikawa, Masahiro Kaneko, Hee-Sup Shin, Tomoyuki Takahashi

Open access · greenAbstract readComparative Study
In one paragraph

Article in The Journal of physiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

78 citing papers in PubMed, 127 citations in OpenAlex.

  1. Presynaptic CaCell reports · 2026
    Article
  2. Presynaptic CabioRxiv : the preprint server for biology · 2026
    Article
  3. Review of the Pathology of Muscle in Amyotrophic Lateral Sclerosis.International journal of molecular sciences · 2026
    Review
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  6. Review
  7. Article
  8. Article
  9. Targeting mitochondrial CaThe Journal of physiology · 2024
    Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Neurotransmitter Release Site Replenishment and Presynaptic Plasticity.International journal of molecular sciences · 2020
    Review
  20. Review

18 more citing papers are in PubMed but not listed here.

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 2 countries.

Taro IshikawaDepartment of Neurophysiology, University of Tokyo Graduate School of Medicine, Tokyo 113-0033, Japan.
Masahiro Kaneko
Hee-Sup Shin
Tomoyuki Takahashi
The University of Tokyo · JPKorea Institute of Science and Technology · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

At the nerve terminal, both N- and P/Q-type Ca2+ channels mediate synaptic transmission, with their relative contribution varying between synapses and with postnatal age. To clarify functional significance of different presynaptic Ca2+ channel subtypes, we recorded N-type and P/Q-type Ca2+ currents directly from calyces of Held nerve terminals in alpha1A-subunit-deficient mice and wild-type (WT) mice, respectively. The most prominent feature of P/Q-type Ca2+ currents was activity-dependent facilitation, which was absent for N-type Ca2+ currents. EPSCs mediated by P/Q-type Ca2+ currents showed less depression during high-frequency stimulation compared with those mediated by N-type Ca2+ currents. In addition, the maximal inhibition by the GABAB receptor agonist baclofen was greater for EPSCs mediated by N-type channels than for those mediated by P/Q-type channels. These results suggest that the developmental switch of presynaptic Ca2+ channels from N- to P/Q-type may serve to increase synaptic efficacy at high frequencies of activity, securing high-fidelity synaptic transmission.

Indexed as

AnimalsAnimals, NewbornBaclofenBrain StemCalciumCalcium Channels, N-TypeCalcium Channels, P-TypeCalcium Channels, Q-TypeExcitatory Postsynaptic PotentialsGABA AgonistsIn Vitro TechniquesMiceMice, Inbred C57BLMice, KnockoutNeuronal Plasticityomega-Conotoxin GVIABaclofenCalciumCalcium Channels, N-TypeCalcium Channels, P-TypeCalcium Channels, Q-TypeGABA Agonistsomega-Conotoxin GVIA

Identifiers

PMID16037093
PMCPMC1474759
OpenAlexW1531970366

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.