Evidence map›Paper›PMID 29922975›Full record

ArticleInternational ophthalmology2019

YKL-40 expression in pterygium: a potential role in the pathogenesis.

Ali Kurt, Raşit Kılıç, Murat Tad, Osman Ahmet Polat

Abstract read
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In one paragraph

Article in International ophthalmology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 47% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Potential Role ofInternational journal of molecular sciences · 2025
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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 1 institution in 1 country.

Ali KurtDepartment of Ophthalmology, Faculty of Medicine, Ahi Evran University Medical School, Kırşehir, Turkey. dralikurt@gmail.com.
Raşit KılıçDepartment of Ophthalmology, Faculty of Medicine, Ahi Evran University Medical School, Kırşehir, Turkey.
Murat TadDepartment of Pathology, Faculty of Medicine, Ahi Evran University Medical School, Kırşehir, Turkey.
Osman Ahmet PolatDepartment of Ophthalmology, Faculty of Medicine, Ahi Evran University Medical School, Kırşehir, Turkey.
Ahi Evran University · TR

Funding

Ahi Evran University Scientific Research Projects Coordination Unit. TIP.A4.17.002.
6 · The paper itself

Abstract

purposeThe aim of the study was to evaluate whether YKL-40 (chitinase 3-like 1 protein) plays a role in pterygium pathogenesis.

methodsWe included 42 primary pterygium patients and 24 control subjects with normal bulbar conjunctiva in the study. The pterygium patients were classified into the atrophic, fleshy, and intermediate groups according to the Tan classification. We then surgically removed the primary nasal pterygium and normal bulbar conjunctiva from the patients and immunohistochemically investigated YKL-40 expression.

resultsYKL-40 expression was statistically significantly higher in the epithelial, endothelial, and stromal cells of the pterygium tissues than in the control tissues (P = 0.009, P = 0.003, P = 0.002, respectively). There was no significant correlation between the pterygium subgroups and YKL-40 expression (P > 0.05).

conclusionsWe believe YKL-40 may play a significant role in pterygium pathogenesis.

Indexed as

BiomarkersChitinase-3-Like Protein 1ConjunctivaEpithelial CellsFemaleFollow-Up StudiesHumansImmunohistochemistryMaleMiddle AgedProspective StudiesPterygiumBiomarkersCHI3L1 protein, humanChitinase-3-Like Protein 1AngiogenesisInflammationPterygiumYKL-40

Identifiers

PMID29922975
OpenAlexW2809233650

What OpenQuestion holds

Textmetadata
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.