Evidence map›Paper›PMID 25428713›Full record

ArticleBMC ophthalmology2014

Oxidant/antioxidant state in tissue of prymary and recurrent pterygium.

Alexandre Kormanovski, Fidelina Parra, Adriana Jarillo-Luna, Eleazar Lara-Padilla, Judith Pacheco-Yépez, Rafael Campos-Rodriguez

Open access · goldAbstract read
In one paragraph

Article in BMC ophthalmology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 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

6 authors at 2 institutions in 1 country.

Alexandre KormanovskiSection of Postgrade and Investigation, Superior Medicine School, National Polytechnic Institute, Hopelchen Mn316 Lt2, Col, Heroes de Padierna, Del, Tlalpan, México City, DF CP14200, Mexico. kormanovski@yahoo.com.mx.
Fidelina Parra
Adriana Jarillo-Luna
Eleazar Lara-Padilla
Judith Pacheco-Yépez
Rafael Campos-Rodriguez
Instituto Politécnico Nacional · MXTecnológico Nacional de México · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPterygium is a disorder of the ocular surface induced by chronic exposure to UV-light. Abundant data is available from patients with primary pterygium, but scarce from those with recurrent pterygium. The present study aimed to explore the oxidant/antioxidant status in tissue of primary and recurrent pterigium in men and women.

methodsPathological tissue samples were taken during surgery on patients with primary and recurrent pterygium. Healthy conjunctive tissue samples were taken during cataract surgery. After homogenization of 77 tissue samples, evaluation was made of thiobarbituric reactive substances (TBARS), nitric oxide (NO), total antioxidant status (TAS) and the activity of the three main antioxidant enzymes: glutathione peroxidase, superoxide dismutase and catalase. Gender differences were evaluated.

resultsCompared to the control group, in the primary pterygium group there was an increase in NO and TAS, and a tendency to a decrease of all antioxidant enzymes, indicating an increase in non-enzymatic antioxidant activity. Compared to the control group, in the recurrent pterygium group there was a significant decrease in the level of TAS and antioxidant enzymes. A high positive correlation was found between most of measured parameters within the control group and the recurrent pterygium group, but not within the primary pterygium group. Compared to men, a significant difference was observed in the elevated NO level and low TAS level of women in the prymary pterygium group.

conclusionsThe diminished antioxidant defense in the recurrent pterygium group, possibly determined mainly by decreased non-enzymatic activity, supports the idea that oxidative stress plays an important role in the recurrence of this disorder.

Indexed as

AdultAgedAntioxidantsCatalaseConjunctivaFemaleGlutathione PeroxidaseHumansMaleMiddle AgedNitric OxideOxidantsOxidative StressPterygiumRecurrenceSex FactorsAntioxidantsCatalaseGlutathione PeroxidaseNitric OxideOxidantsSuperoxide DismutaseThiobarbituric Acid Reactive Substances

Identifiers

PMID25428713
PMCPMC4280750
OpenAlexW2094975208

What OpenQuestion holds

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LicenceCC BY
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.