Evidence map›Paper›PMID 31363950›Full record

ArticleInternational ophthalmology2020

Relationship between tear eotaxin-2 and MMP-9 with ocular allergy and corneal topography in keratoconus patients.

Melek Mutlu, Ozge Sarac, Nurullah Cağıl, Gamze Avcıoğlu

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Article in International ophthalmology, 2020. 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
2.0field-weighted citation impact, top 14% 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, 26 citations in OpenAlex.

  1. Review
  2. Tear cytokine profiles between children with allergic conjunctivitis at varying eye rubbing frequencies and keratoconus: A cross-sectional study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
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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

4 authors at 2 institutions in 1 country.

Melek MutluWorld Eye Hospital Etiler, Vadi İstanbul Teras evleri 8.blok no:24, Istanbul, Turkey. melekmutlu06@gmail.com.
Ozge SaracDepartment of Ophthalmology, Ataturk Education and Research Hospital, Yıldırım Beyazıt University, Ankara, Turkey.
Nurullah CağılDepartment of Ophthalmology, Ataturk Education and Research Hospital, Yıldırım Beyazıt University, Ankara, Turkey.
Gamze AvcıoğluDepartment of Biochemistry, Ataturk Education and Research Hospital, Yıldırım Beyazıt University, Ankara, Turkey.
Ankara Yıldırım Beyazıt University · TRIstanbul Eye Hospital · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo analyze the relationship between the seasonal allergic conjunctivitis (SAC), eotaxin-2, matrix metalloproteinase-9 (MMP-9), and the topographical findings in the keratoconus patients.

methodsThirty-four eyes of patients without SAC (Group 1), 34 eyes of patients with SAC (Group 2), and 20 eyes of control subjects (control group) were enrolled. Tear samples of the subjects were collected by Schirmer method. Corneal topography parameters, tear MMP-9, and tear eotaxin-2 levels were analyzed.

resultsThe mean tear MMP-9 levels in Groups 1 and 2 were significantly higher than in the control group (p = 0.004). MMP-9 level exhibited a positive correlation with the keratoconus stage and a negative correlation with the thinnest corneal thickness (r = 0.294, p = 0.018, and r = - 0.302, p = 0.006, respectively). The tear eotaxin-2 level was higher in Group 2 than in Group 1 and control group which is not statistically significant (p = 0.17).

conclusionThe tear eotaxin-2 did not exhibit any difference in the presence of keratoconus. The tear MMP-9 level was higher in the keratoconic eyes, and it showed a correlation with the stage of the disease and the corneal thickness.

Indexed as

AdolescentAdultBiomarkersChemokine CCL24Conjunctivitis, AllergicCorneaCorneal TopographyEnzyme-Linked Immunosorbent AssayFemaleFollow-Up StudiesHumansKeratoconusMaleMatrix Metalloproteinase 9Prospective StudiesTearsBiomarkersChemokine CCL24Matrix Metalloproteinase 9Corneal topographyEotaxin-2KeratoconusMMP-9Seasonal allergic conjunctivitis

Identifiers

PMID31363950
OpenAlexW2964876904

What OpenQuestion holds

Textmetadata
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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.