Evidence map›Paper›PMID 25703476›Full record

Observational studyAmerican journal of ophthalmology2015

Alteration of galectin-3 in tears of patients with dry eye disease.

Yuichi Uchino, Jerome Mauris, Ashley M Woodward, Julia Dieckow, Francisco Amparo, Reza Dana, Flavio Mantelli, Pablo Argüeso

Open access · greenAbstract readComparative StudyObservational Study
In one paragraph

Observational study in American journal of ophthalmology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 55 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Ocular surface glycocalyx in health and disease.Frontiers in cell and developmental biology · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Transmembrane Mucin 1 Blocks Fluorescein Ingress to Corneal Epithelium.Investigative ophthalmology & visual science · 2022
    Article
  15. Article
  16. Article
  17. Review
  18. Galectins as Regulators of Corneal Inflammation.Current opinion in physiology · 2021
    Article
  19. Review
  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

8 authors at 2 institutions in 2 countries.

Yuichi UchinoSchepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts.
Jerome MaurisSchepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts.
Ashley M WoodwardSchepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts.
Julia DieckowSchepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts.
Francisco AmparoSchepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts.
Reza DanaSchepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts.
Flavio MantelliCampus Bio Medico University of Rome, Rome, Italy.
Pablo ArgüesoSchepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts. Electronic address: pablo_argueso@meei.harvard.edu.
Massachusetts Eye and Ear Infirmary · USUniversità Campus Bio-Medico · IT

Funding

O-Glycans on Mucins at the Ocular SurfaceR01EY014847 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI ARGUESO, PABLO · 2003 to 2014
$4.0M
NEI NIH HHS R01 EY014847PHS HHS NEI014847
6 · The paper itself

Abstract

purposeTo investigate the expression, release, and proteolytic degradation of galectin-3 in patients with dry eye disease.

designObservational case series with a comparison group.

methodsTear washes and conjunctival impression cytology specimens were collected through standard procedures from 16 patients with dry eye and 11 age-matched healthy subjects. Galectin-3 content in tears was analyzed by quantitative Western blot, using recombinant galectin-3 protein to generate a calibration curve. The relative expression of galectin-3 and matrix metalloproteinase 9 (MMP9) was evaluated by quantitative polymerase chain reaction. The cleavage of galectin-3 was studied in vitro using activated recombinant MMP9 and protease inhibitors.

resultsThe concentration of galectin-3 protein in tears, but not galectin-3 expression in conjunctival epithelium, was significantly higher in tears of patients with dry eye (0.38 ng/μg total protein, range 0.04-1.36) compared to healthy subjects (0.12 ng/μg total protein, range 0.00-0.41) (P < .01). By Western blot, an intact (∼28.0 kDa) galectin-3 band was identified in tear samples from healthy subjects, whereas 50% of the dry eye samples were characterized by the additional presence of a partially degraded form (∼25.4 kDa). In our experiments, elevated expression of MMP9 in dry eye subjects correlated with the ability of active MMP9 to cleave galectin-3 from recombinant origin. Interestingly, cleavage of endogenous galectin-3 in tear samples was impaired using a broad-spectrum proteinase inhibitor cocktail, but not the pan-specific MMP inhibitor GM6001, suggesting the presence of proteases other than MMPs in promoting galectin-3 degradation in dry eye.

conclusionsOur results indicate that release of cellular galectin-3 into tears is associated with epithelial dysfunction in dry eye, and that galectin-3 proteolytic cleavage may contribute to impaired ocular surface barrier function.

Indexed as

AdultAgedAged, 80 and overBlood ProteinsBlotting, WesternConjunctivaDry Eye SyndromesElectrophoresis, Polyacrylamide GelEpithelial CellsEye ProteinsFemaleGalectin 3GalectinsHumansMaleMatrix Metalloproteinase 9Blood ProteinsEye ProteinsGalectin 3GalectinsLGALS3 protein, humanMatrix Metalloproteinase 9MMP9 protein, humanRNA, Messengertear proteins

Identifiers

PMID25703476
PMCPMC4426220
OpenAlexW2034504732

What OpenQuestion holds

Textmetadata
LicenceTDM
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.