Evidence map›Paper›PMID 29196765›Full record

ArticleInvestigative ophthalmology & visual science2017

Aquaporin 0 Modulates Lens Gap Junctions in the Presence of Lens-Specific Beaded Filament Proteins.

Sindhu Kumari, Junyuan Gao, Richard T Mathias, Xiurong Sun, Amizhdini Eswaramoorthy, Nicholas Browne, Nigel Zhang, Kulandaiappan Varadaraj

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

  1. CatExperimental eye research · 2026
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  3. Review
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  7. Article
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  11. C-Terminal End of Aquaporin 0 Regulates Lens Gap Junction Channel Function.Investigative ophthalmology & visual science · 2019
    Article
  12. The Connexin50D47A Mutant Causes Cataracts by Calcium Precipitation.Investigative ophthalmology & visual science · 2019
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Aquaporin 5 promotes corneal wound healing.Experimental eye research · 2018
    Article
  18. 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

8 authors at 1 institution in 1 country.

Sindhu KumariDepartment of Physiology and Biophysics, Stony Brook University, Stony Brook, New York, United States.
Junyuan GaoDepartment of Physiology and Biophysics, Stony Brook University, Stony Brook, New York, United States.
Richard T MathiasDepartment of Physiology and Biophysics, Stony Brook University, Stony Brook, New York, United States.
Xiurong SunDepartment of Physiology and Biophysics, Stony Brook University, Stony Brook, New York, United States.
Amizhdini EswaramoorthyDepartment of Physiology and Biophysics, Stony Brook University, Stony Brook, New York, United States.
Nicholas BrowneDepartment of Physiology and Biophysics, Stony Brook University, Stony Brook, New York, United States.
Nigel ZhangDepartment of Physiology and Biophysics, Stony Brook University, Stony Brook, New York, United States.
Kulandaiappan VaradarajDepartment of Physiology and Biophysics, Stony Brook University, Stony Brook, New York, United States.
Stony Brook University · US

Funding

VOLUME REGULATION IN NORMAL AND CATARACTOUS LENSESR01EY006391 · NEI · STATE UNIVERSITY NEW YORK STONY BROOK · PI MATHIAS, RICHARD T · 1985 to 2014
$5.4M
Role of aquaporins in mammalian lens development,transparency and homeostasisR01EY026155 · NEI · STATE UNIVERSITY NEW YORK STONY BROOK · PI VARADARAJ, KULANDAIAPPAN · 2016 to 2019
$1.6M
Role of Aquaporin-0 for cell-to-cell adhesion and lens transparencyR01EY020506 · NEI · STATE UNIVERSITY NEW YORK STONY BROOK · PI VARADARAJ, KULANDAIAPPAN · 2010 to 2013
$1.6M
NEI NIH HHS R01 EY006391NEI NIH HHS R01 EY020506NEI NIH HHS R01 EY026155
6 · The paper itself

Abstract

Purpose: The objective of this study was to understand the molecular and physiologic mechanisms behind the lens cataract differences in Aquaporin 0-knockout-Heterozygous (AQP0-Htz) mice developed in C57 and FVB (lacks beaded filaments [BFs]) strains. Methods: Lens transparency was studied using dark field light microscopy. Water permeability (Pf) was measured in fiber cell membrane vesicles. Western blotting/immunostaining was performed to verify expression of BF proteins and connexins. Microelectrode-based intact lens intracellular impedance was measured to determine gap junction (GJ) coupling resistance. Lens intracellular hydrostatic pressure (HP) was determined using a microelectrode/manometer system. Results: Lens opacity and spherical aberration were more distinct in AQP0-Htz lenses from FVB than C57 strains. In either background, compared to wild type (WT), AQP0-Htz lenses showed decreased Pf (approximately 50%), which was restored by transgenic expression of AQP1 (TgAQP1/AQP0-Htz), but the opacities and differences between FVB and C57 persisted. Western blotting revealed no change in connexin expression levels. However, in C57 AQP0-Htz and TgAQP1/AQP0-Htz lenses, GJ coupling resistance decreased approximately 2.8-fold and the HP gradient decreased approximately 1.9-fold. Increased Pf in TgAQP1/AQP0-Htz did not alter GJ coupling resistance or HP. Conclusions: In C57 AQP0-Htz lenses, GJ coupling resistance decreased. HP reduction was smaller than the coupling resistance reduction, a reflection of an increase in fluid circulation, which is one reason for the less severe cataract in C57 than FVB. Overall, our results suggest that AQP0 modulates GJs in the presence of BF proteins to maintain lens transparency and homeostasis.

Indexed as

Gene Expression RegulationAnimalsAquaporin 1Blotting, WesternCataractDisease Models, AnimalElectric ImpedanceEye ProteinsGap JunctionsGenotypeHeterozygoteIntermediate Filament ProteinsLens, CrystallineMiceMice, Inbred C57BLMice, KnockoutAqp1 protein, mouseAquaporin 1Eye ProteinsfilensinIntermediate Filament ProteinsRNA

Identifiers

PMID29196765
PMCPMC5710632
OpenAlexW2750040069

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.