Evidence map›Paper›PMID 18653180›Full record

ArticleExperimental eye research2008

Expression of inwardly rectifying potassium channel subunits in native human retinal pigment epithelium.

Dongli Yang, Xiaoming Zhang, Bret A Hughes

Abstract read
In one paragraph

Article in Experimental eye research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

26 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review of the clinical electrooculogram - Part 1: Mechanism of the Light-Rise.Documenta ophthalmologica. Advances in ophthalmology · 2026
    Review
  2. Review
  3. Review
  4. KAmerican journal of physiology. Renal physiology · 2023
    Article
  5. Inward rectifier potassium (Kir) channels in the retina: living our vision.American journal of physiology. Cell physiology · 2022
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. The Impact of miRNAs in Health and Disease of Retinal Pigment Epithelium.Frontiers in cell and developmental biology · 2020
    Review
  13. Article
  14. Review
  15. Focus on Kir7.1: physiology and channelopathy.Channels (Austin, Tex.) · 2014
    Review
  16. Article
  17. Article
  18. Article
  19. Review
  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

3 authors at 1 institution in 1 country.

Dongli YangDepartment of Ophthalmology and Visual Sciences, University of Michigan, W.K. Kellogg Eye Center, Ann Arbor, MI 48105-0714, USA.
Xiaoming Zhang
Bret A Hughes
University of Michigan–Ann Arbor · US

Funding

VIVARIUM MODULEP30EY007003 · NEI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI David Antonetti · 1987 to 2026
$17.6M
ION CONDUCTANCES IN THE RETINAL PIGMENT EPITHELIUMR01EY008850 · NEI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI HUGHES, BRET A · 1991 to 2017
$6.8M
NEI NIH HHS EY07703NEI NIH HHS EY08850NEI NIH HHS P30 EY007003NEI NIH HHS R01 EY008850
6 · The paper itself

Abstract

Previously, we demonstrated that the inwardly rectifying K(+) (Kir) channel subunit Kir7.1 is highly expressed in bovine and human retinal pigment epithelium (RPE). The purpose of this study was to determine whether any of the 14 other members of the Kir gene family are expressed in native human RPE. Conventional reverse transcription-polymerase chain reaction (RT-PCR) analysis indicated that in addition to Kir7.1, seven other Kir channel subunits (Kir1.1, Kir2.1, Kir2.2, Kir3.1, Kir3.4, Kir4.2 and Kir6.1) are expressed in the RPE, whereas in neural retina, all 14 of the Kir channel subunits examined are expressed. The identities of RT-PCR products in the RPE were confirmed by DNA sequencing. Real-time RT-PCR analysis showed, however, that transcripts of these channels are significantly less abundant than Kir7.1 in the RPE. Western blot analysis of the Kir channel subunits detected in the RPE by RT-PCR revealed the expression of Kir2.1, Kir3.1, Kir3.4, Kir4.2, Kir6.1, and possibly Kir2.2, but not Kir1.1, in both human RPE and neural retina. Our results indicate that human RPE expresses at least five other Kir channel subtypes in addition to Kir7.1, suggesting that multiple members of the Kir channel family may function in this epithelium.

Indexed as

AgedGene ExpressionHumansMiddle AgedPotassium Channels, Inwardly RectifyingRetinaRetinal Pigment EpitheliumReverse Transcriptase Polymerase Chain ReactionRNA, MessengerPotassium Channels, Inwardly RectifyingRNA, Messenger

Identifiers

PMID18653180
PMCPMC2612002
OpenAlexW2034259511

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.