Evidence map›Paper›PMID 15359216›Full record

ArticleMolecular vision2004

Contribution of Kir4.1 to the mouse electroretinogram.

Jiang Wu, Alan D Marmorstein, Paulo Kofuji, Neal S Peachey

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

28 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. A Splicing Mutation inInternational journal of molecular sciences · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Mouse b-wave mutants.Documenta ophthalmologica. Advances in ophthalmology · 2014
    Review
  15. Response properties of slow PIII in the Large (vls) mutant.Documenta ophthalmologica. Advances in ophthalmology · 2012
    Article
  16. Article
  17. Article
  18. Molecular basis of decreased Kir4.1 function in SeSAME/EAST syndrome.Journal of the American Society of Nephrology : JASN · 2010
    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 4 institutions in 1 country.

Jiang WuCole Eye Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA. peachen@ccf.org
Alan D Marmorstein
Paulo Kofuji
Neal S Peachey
Cleveland Clinic · USCleveland Eye Clinic · USTwin Cities Orthopedics · USUniversity of Arizona · US

Funding

BESTROPHIN AND RETINAL DISEASER01EY013160 · NEI · UNIVERSITY OF ARIZONA · PI MARMORSTEIN, ALAN D · 2000 to 2013
$5.0M
PHYSIOLOGY OF POTASSIUM CHANNELS IN RETINAL GLIAL CELLSR01EY012949 · NEI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI KOFUJI, PAULO · 2000 to 2009
$2.7M
The Mouse dc-ElectroretinogramR01EY014465 · NEI · CLEVELAND CLINIC LERNER COL/MED-CWRU · PI PEACHEY, NEAL S · 2003 to 2005
$683k
Bestrophin and Retinal DiseaseR56EY013160 · NEI · UNIVERSITY OF ARIZONA · PI MARMORSTEIN, ALAN D · 2009 to 2009
$378k
NEI NIH HHS EY12949NEI NIH HHS EY13160NEI NIH HHS EY14465NEI NIH HHS R01 EY012949NEI NIH HHS R01 EY013160NEI NIH HHS R01 EY014465NEI NIH HHS R56 EY013160
6 · The paper itself

Abstract

purposeThe electroretinogram (ERG) represents the combination of several distinct cellular processes and conductances. Here, we define the contribution that K+ conductance through Kir4.1 channels makes to the mouse ERG.

methodsTo obtain mice expressing different levels of Kir4.1, we mated Kir4.1+/- mice and used PCR to identify Kir4.1+/- and Kir4.1+/+ littermates. In addition, we mated Kir4.1+/- males with females homozygous for the nob (no b-wave) defect, which eliminates post-receptoral contributions to the ERG. After overnight dark adaptation, mice were anesthetized and ERGs were recorded to 7 min stimuli, to focus on slow ERG components, or to strobe flash stimuli, to examine earlier ERG components.

resultsThe amplitudes of the ERG c-wave and the fast oscillation, measured from the c-wave peak, were significantly larger in Kir4.1+/- mice than in Kir4.1+/+ littermates. In comparison, the amplitude of the light peak, the other main component generated by the retinal pigment epithelium in response to light, did not differ between Kir4.1+/- and Kir4.1+/+ mice. The amplitude of slow PIII, revealed by the nob genetic background, was reduced in Kir4.1+/- mice.

conclusionsThese results indicate that a cornea-negative potential, generated by Kir4.1, normally opposes a positive polarity conductance that is generated by the apical membrane of the retinal pigment epithelium to form the c-wave measured at the corneal surface.

Indexed as

ElectroretinographyAnimalsDark AdaptationFemaleMaleMiceMice, Inbred C57BLMice, Mutant StrainsPhotic StimulationPolymerase Chain ReactionPotassiumPotassium Channels, Inwardly RectifyingRetinaPotassiumPotassium Channels, Inwardly Rectifying

Identifiers

PMID15359216
PMCPMC2883771
OpenAlexW2150216672

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.