Evidence map›Paper›PMID 14610018›Full record

ArticleThe Journal of general physiology2003

pH changes in the invaginating synaptic cleft mediate feedback from horizontal cells to cone photoreceptors by modulating Ca2+ channels.

Hajime Hirasawa, Akimichi Kaneko

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of general physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 123 papers.

0numbers the graph read from it
0cells of the map it votes in
123citing papers in PubMed
2.9field-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

123 citing papers in PubMed, 202 citations in OpenAlex.

  1. Article
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  5. On analogies in vertebrate and insect visual systems.Nature reviews. Neuroscience · 2025
    Review
  6. Article
  7. The Role of the CaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
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  11. Article
  12. Article
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  14. Article
  15. Article
  16. Article
  17. Article
  18. Adhesion GPCR Latrophilin 3 regulates synaptic function of cone photoreceptors in a trans-synaptic manner.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  19. Article
  20. Transmission at rod and cone ribbon synapses in the retina.Pflugers Archiv : European journal of physiology · 2021
    Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Hajime HirasawaDepartment of Physiology, Keio University School of Medicine, Tokyo, Japan. Hajime_Hirasawa@hms.harvard.edu
Akimichi Kaneko
Keio University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Feedback from horizontal cells (HCs) to cone photoreceptors plays a key role in the center-surround-receptive field organization of retinal neurons. Recordings from cone photoreceptors in newt retinal slices were obtained by the whole-cell patch-clamp technique, using a superfusate containing a GABA antagonist (100 microM picrotoxin). Surround illumination of the receptive field increased the voltage-dependent calcium current (ICa) in the cones, and shifted the activation voltage of ICa to negative voltages. External alkalinization also increased cone ICa and shifted its activation voltage toward negative voltages. Enrichment of the pH buffering capacity of the extracellular solution increased cone ICa, and blocked any additional increase in cone ICa by surround illumination. Hyperpolarization of the HCs by a glutamate receptor antagonist-augmented cone ICa, whereas depolarization of the HCs by kainate suppressed cone ICa. From these results, we propose the hypothesis that pH changes in the synaptic clefts, which are intimately related to the membrane voltage of the HCs, mediate the feedback from the HCs to cone photoreceptors. The feedback mediated by pH changes in the synaptic cleft may serve as an additional mechanism for the center-surround organization of the receptive field in the outer retina.

Indexed as

Action PotentialsAnimalsCalcium ChannelsFeedback, PhysiologicalHydrogen-Ion ConcentrationIn Vitro TechniquesPhotic StimulationRetinal Cone Photoreceptor CellsSalamandridaeSynapsesCalcium Channels

Identifiers

PMID14610018
PMCPMC2229595
OpenAlexW2097265269

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.