Evidence map›Paper›PMID 34616748›Full record

ArticleBiomedicine hub

Benzalkonium Chloride-Preserved Anti-Glaucomatous Eye Drops and Their Effect on Human Conjunctival Goblet Cells in vitro.

Anne Hedengran, Xenia Begun, Olivia Müllertz, Zaynab Mouhammad, Rupali Vohra, Jeffrey Bair, Darlene A Dartt, Barbara Cvenkel, Steffen Heegaard, Goran Petrovski and 1 more

Open access · goldAbstract read
In one paragraph

Article in Biomedicine hub. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

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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

11 authors at 5 institutions in 4 countries.

Anne HedengranDepartment of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
Xenia BegunDepartment of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
Olivia MüllertzDepartment of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
Zaynab MouhammadDepartment of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
Rupali VohraDepartment of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
Jeffrey BairSchepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA.
Darlene A DarttSchepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA.
Barbara CvenkelDepartment of Ophthalmology, UMC Ljubljana, Ljubljana, Slovenia.
Steffen HeegaardDepartment of Ophthalmology, Copenhagen University Hospital, Rigshospitalet-Glostrup, Glostrup, Denmark.
Goran PetrovskiDepartment of Ophthalmology, University Hospital Rikshospitalet, Oslo, Norway.
Miriam KolkoDepartment of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
University of Copenhagen · DKGlostrup Hospital · DKHarvard University · USLjubljana University Medical Centre · SIOslo University Hospital · NO

Funding

Conjunctival Goblet Cell Mucin Secretion in Inflammation and Its ResolutionR01EY019470 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI DARTT, DARLENE A · 2009 to 2023
$7.4M
Construction of Conjunctival Equivalents Using Molecular Deposition TechniquesR01EY029789 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI DARTT, DARLENE A · 2020 to 2023
$1.6M
NEI NIH HHS R01 EY019470NEI NIH HHS R01 EY029789
6 · The paper itself

Abstract

introductionMost intraocular pressure (IOP)-lowering eye drops are preserved with benzalkonium chloride (BAK). This can increase side effects and decrease adherence. Particularly, damage to the mucin-producing conjunctival goblet cells may be an issue due to instability of the tear film. We aimed to investigate the effect of IOP-lowering eye drops preserved with BAK on cultured human conjunctival goblet cells.

methodsEye drops Brimonidine Tartrate Teva (BT) with 0.005% BAK, Dorzolamide Stada (DS) with 0.0075% BAK, Optimol

resultsAll eye drops examined, except BT, reduced goblet cell survival. The impact of eye drops on goblet cell viability was correlated with the time of exposure as well as to the concentration of BAK. After 30 min of exposure, cell viability was 93% for BT (0.005% BAK;

conclusionLT, OP, and DS reduced human goblet cell survival in a time-dependent manner. BT did not affect goblet cell survival. Cell survival was correlated with the BAK concentration in the eye drops making 0.02% BAK-preserved LT most toxic and 0.005% BAK-preserved BT least toxic. Based on the present study, decreasing BAK in eye drops for chronic use seems important to reduce damage to the goblet cells. However, future studies are needed to further explore this finding.

Indexed as

Anti-glaucomatous treatmentBenzalkonium chlorideGlaucomaGoblet cellsIn vitro study

Identifiers

PMID34616748
PMCPMC8460924
OpenAlexW3194320545

What OpenQuestion holds

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Registered trials

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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.