Evidence map›Paper›PMID 17932147›Full record

ArticleThe Journal of physiology2007

Depolarization of isolated horizontal cells of fish acidifies their immediate surrounding by activating V-ATPase.

Hiroshi Jouhou, Kazunori Yamamoto, Akinori Homma, Masayuki Hara, Akimichi Kaneko, Masahiro Yamada

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

21 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Calcium Channels in Retinal Function and Disease.Annual review of vision science · 2022
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Lateral interactions in the outer retina.Progress in retinal and eye research · 2012
    Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. V-ATPase-dependent ectodermal voltage and pH regionalization are required for craniofacial morphogenesis.Developmental dynamics : an official publication of the American Association of Anatomists · 2011
    Article
  18. Article
  19. Article
  20. Review
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

6 authors at 3 institutions in 1 country.

Hiroshi JouhouDepartment of Biological Sciences, Tokyo Metropolitan University, Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan.
Kazunori Yamamoto
Akinori Homma
Masayuki Hara
Akimichi Kaneko
Masahiro Yamada
Tokyo Metropolitan University · JPAstellas Pharma (Japan) · JPKio University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In order to interpret the formation of receptive field surrounds in retinal neurons, a proton-mediated mechanism was proposed to mediate feedback from horizontal cells (HCs) to cone photoreceptors. To verify the idea that depolarized HCs release protons, we measured, by a fluorescence ratiometric technique, the pH of the immediate external surface (pHs) of HCs isolated from the carp or goldfish retina. When HCs stained by 5-hexadecanoylaminofluorescein, a pH-sensitive lipophilicdye, were depolarized by bath-application of kainate or high-K+ medium, pHs was lowered. The amount of pHs change was monotonically dependent on the degree of depolarization, as much as 0.21 +/- 0.05 pH units by 100 mV depolarization (induced by 100 mm K+). Acidification was suppressed by 400 nm bafilomycin A1, a specific inhibitor of the vacuolar type H+ pump (V-ATPase), suggesting that depolarization released protons from HCs via the voltage-sensitive H+ pump. Immunocytochemical analysis, using an anti-V-ATPase antibody, revealed the existence of V-ATPase in dissociated HCs. These results support the hypothesis that the feedback from HCs to cones could be proton mediated.

Indexed as

AcidsAnimalsCarpsCell CommunicationEnzyme InhibitorsExcitatory Amino Acid AgonistsExtracellular SpaceFeedback, PhysiologicalGoldfishHydrogen-Ion ConcentrationImmunohistochemistryKainic AcidMacrolidesMembrane PotentialsPotassiumRetinal Cone Photoreceptor CellsAcidsbafilomycin A1Enzyme InhibitorsExcitatory Amino Acid AgonistsKainic AcidMacrolidesPotassiumVacuolar Proton-Translocating ATPases

Identifiers

PMID17932147
PMCPMC2375478
OpenAlexW1482261086

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.