Evidence map›Paper›PMID 26618646›Full record

ArticleInvestigative ophthalmology & visual science2015

Aqueous Tear Deficiency Increases Conjunctival Interferon-γ (IFN-γ) Expression and Goblet Cell Loss.

Stephen C Pflugfelder, Cintia S De Paiva, Quianta L Moore, Eugene A Volpe, De-Quan Li, Koray Gumus, Mahira L Zaheer, Rosa M Corrales

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
8.6field-weighted citation impact, top 2% 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

74 citing papers in PubMed, 122 citations in OpenAlex.

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  13. Ectopic lymphoid structures in the aged lacrimal glands.Clinical immunology (Orlando, Fla.) · 2023
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14 more citing papers are in PubMed but not listed here.

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 3 institutions in 2 countries.

Stephen C PflugfelderOcular Surface Center Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States.
Cintia S De PaivaOcular Surface Center Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States.
Quianta L MooreOcular Surface Center Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States.
Eugene A VolpeOcular Surface Center Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States.
De-Quan LiOcular Surface Center Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States.
Koray GumusOcular Surface Center Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States 2Department of Ophthalmology, Erciyes University School of Medicine, Kayseri, Turkey.
Mahira L ZaheerOcular Surface Center Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States.
Rosa M CorralesOcular Surface Center Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States.
Ocular Surface Center · USBaylor College of Medicine · USErciyes University · TR

Funding

VISION RESEARCH CENTERP30EY002520 · NEI · BAYLOR COLLEGE OF MEDICINE · PI Samuel M Wu · 1985 to 2026
$14.8M
PATHOGENESIS OF CONJUNCTIVAL SQUAMOUS METAPLASIAR01EY011915 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI PFLUGFELDER, STEPHEN C · 1997 to 2023
$8.0M
Core Grant for Vision ResearchP30EY020799 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI NIEDERKORN, JERRY · 2010 to 2016
$4.1M
TLR4-DEPENDENT INNATE IMMUNITY IN POLLEN-TRIGGERED OCULAR ALLERGIC INFLAMMATIONR01EY023598 · NEI · BAYLOR COLLEGE OF MEDICINE · PI LI, DE-QUAN · 2014 to 2018
$2.1M
NEI NIH HHS EY002520NEI NIH HHS EY020799NEI NIH HHS EY11915NEI NIH HHS P30 EY002520NEI NIH HHS P30 EY020799NEI NIH HHS R01 EY011915NEI NIH HHS R01 EY023598
6 · The paper itself

Abstract

purposeTo investigate the hypothesis that increased interferon-γ (IFN-γ) expression is associated with conjunctival goblet cell loss in subjects with tear dysfunction.

methodsGoblet cell density (GCD) was measured in impression cytology from the temporal bulbar conjunctiva, and gene expression was measured in cytology samples from the nasal bulbar conjunctiva obtained from 68 subjects, including normal control, meibomian gland disease (MGD), non-Sjögren syndrome (non-SSATD)-, and Sjögren syndrome (SSATD)-associated aqueous tear deficiency. Gene expression was evaluated by real-time PCR. Tear meniscus height (TMH) was measured by optical coherence tomography. Fluorescein and lissamine green dye staining evaluated corneal and conjunctival disease, respectively. Between-group mean differences and correlation coefficients were calculated.

resultsCompared to control, IFN-γ expression was significantly higher in both ATD groups, and its receptor was higher in SSATD. Expression of IL-13 and its receptor was similar in all groups. Goblet cell density was lower in the SSATD group; expression of MUC5AC mucin was lower and cornified envelope precursor small proline-rich region (SPRR)-2G higher in both ATD groups. Interferon-γ transcript number was inversely correlated with GCD (r = -0.37, P < 0.04) and TMH (r = -0.37, P = 0.02), and directly correlated with lissamine green staining (r = 0.51, P < 0.001) and SPRR-2G expression (r = 0.32, P < 0.05).

conclusionsInterferon-γ expression in the conjunctiva was higher in aqueous deficiency and correlated with goblet cell loss and severity of conjunctival disease. These results support findings of animal and culture studies showing that IFN-γ reduces conjunctival goblet cell number and mucin production.

Indexed as

Gene Expression RegulationAdultAgedAged, 80 and overCells, CulturedConjunctivaDry Eye SyndromesFemaleFluorescent Antibody Technique, IndirectGoblet CellsHumansInterferon-gammaMaleMiddle AgedReal-Time Polymerase Chain ReactionRNAInterferon-gammaRNA

Identifiers

PMID26618646
PMCPMC4669202
OpenAlexW2195529641

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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.