Evidence map›Paper›PMID 23800763›Full record

ArticleInvestigative ophthalmology & visual science2013

In vivo analysis of aquaporin 0 function in zebrafish: permeability regulation is required for lens transparency.

Daniel M Clemens, Karin L Németh-Cahalan, Lien Trinh, Tailin Zhang, Thomas F Schilling, James E Hall

Open access · greenAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

23 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Methods for studying mammalian aquaporin biology.Biology methods & protocols · 2023
    Review
  5. Classification and Gene Structure of Aquaporins.Advances in experimental medicine and biology · 2023
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Aqp0a Regulates Suture Stability in the Zebrafish Lens.Investigative ophthalmology & visual science · 2018
    Article
  17. Article
  18. Article
  19. The pH sensitivity of Aqp0 channels in tetraploid and diploid teleosts.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2015
    Article
  20. The aquaporin zero puzzle.Biophysical journal · 2014
    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 1 institution in 1 country.

Daniel M ClemensDepartment of Physiology and Biophysics, University of California, Irvine, Irvine, California 92697-4561, USA.
Karin L Németh-Cahalan
Lien Trinh
Tailin Zhang
Thomas F Schilling
James E Hall
University of California, Irvine · US

Funding

Biomedical Informatics Training ProgramT15LM007443 · NLM · UNIVERSITY OF CALIFORNIA-IRVINE · PI BALDI, PIERRE · 2002 to 2012
$9.3M
THE ROLE OF ATROPHIN-2 IN CARTILAGE PATTERNING AND POLARITY IN ZEBRAFISHR01DE013828 · NIDCR · UNIVERSITY OF CALIFORNIA-IRVINE · PI SCHILLING, THOMAS F · 2001 to 2025
$9.1M
STRUCTURE /FUNCTION OF LENS CHANNELSR01EY005661 · NEI · UNIVERSITY OF CALIFORNIA-IRVINE · PI HALL, JAMES EWBANK · 1985 to 2018
$7.9M
NEI NIH HHS EY5661NEI NIH HHS R01 EY005661NIDCR NIH HHS DE13828NIDCR NIH HHS R01 DE013828NLM NIH HHS LM007443NLM NIH HHS T15 LM007443
6 · The paper itself

Abstract

purposeThe zebrafish lens is well suited for studies of physiology and development due to its rapid formation in the embryo and genetic accessibility. Aquaporin 0 (AQP0), a lens-specific membrane protein, is required for lens clarity. Zebrafish have two copies of AQP0 (Aqp0a and b), whereas mammals have a single, multifunctional protein. Here we demonstrate a reliable knockdown/rescue system in zebrafish and use it to provide evidence for subfunctionalization of Aqp0a and b, as well as to show that calcium-mediated regulation of Aqp0a in zebrafish lenses is necessary for transparency.

methodsCoinjection of antisense oligonucleotides and DNA rescue constructs into zebrafish embryos, followed by evaluation of the developing fish for cataracts, was used to analyze the functions of Aqp0a and b. The water permeability and regulation characteristics of each rescue protein were tested in a Xenopus oocyte swelling assay.

resultsBoth copies of AQP0 are necessary for lens clarity in the zebrafish, and neither is sufficient. Water permeability is necessary but also insufficient. Phosphorylation and regulation of Aqp0a are required for its function.

conclusionsIn the zebrafish lens, the two closely related AQP0s have acquired distinct functions that are both necessary for lens development and clarity. Regulation of AQP0 water permeability, a well-studied phenomenon in vitro, may be physiologically relevant in the living lens.

Indexed as

PermeabilityAnimalsAquaporinsBiological TransportCataractDisease Models, AnimalEye ProteinsLens, CrystallineWaterZebrafishaquaporin 0AquaporinsEye ProteinsWaterAQP0cataractsubfunctionalizationzebrafish

Identifiers

PMID23800763
PMCPMC3729242
OpenAlexW1995448660

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.