Evidence map›Paper›PMID 31077021›Full record

ArticleInternational ophthalmology2019

Association of KIF26B and COL4A4 gene polymorphisms with the risk of keratoconus in a sample of Iranian population.

Saman Sargazi, Mahdiyeh Moudi, Milad Heidari Nia, Ramin Saravani, Hamid Malek Raisi

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, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
1.4field-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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Heritability of Corneal Parameters in Nuclear Families With Keratoconus.Translational vision science & technology · 2022
    Article
  3. Article
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

5 authors at 3 institutions in 1 country.

Saman SargaziDepartment of Clinical Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Mahdiyeh MoudiCellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
Milad Heidari NiaCellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
Ramin SaravaniCellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. saravaniramin@yahoo.com.ORCID http://orcid.org/0000-0003-1941-3617
Hamid Malek RaisiInfectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran.
Shahid Sadoughi University of Medical Sciences and Health Services · IRZahedan University of Medical Sciences · IRUniversity of Isfahan · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeKeratoconus (KTCN) is a congenital corneal eye disorder which correlates with abnormal distribution of the collagen fiber and causes loss of visual acuity. COLA4A gene has a substantive role in collagen synthesis, whereas KIF26B as a new candidate gene belonging to kinesin superfamily (KIFs) has been suggested to be associated with this disease. So, in this preliminary study, we simultaneously evaluated the effects of two single nucleotide polymorphisms, 222855rs7C/T and rs12407427C/T, on KTCN susceptibility in a sample of Iranian population.

methodsThe present case-control study consists of 144 patients confirmed with KTCN and 153 healthy controls. The variants are genotyped by using amplification refractory mutation system-polymerase chain reaction method.

resultsThe findings disclosed that rs2228557C/T and rs12407427C/T polymorphisms significantly increased the risk of KTCN in measured (codominant1; p = 0.0001, codominant2; p = 0.0001, codominant3; p = 0.0006, dominant; p = 0.0001, over-dominant; p = 0.0005) and (codominant1; p = 0.0001, codominant3; p = 0.0005, recessive; p = 0.0001) inheritance patterns, respectively.

conclusionOur results did prove a statistical association of both rs2228557 and rs12407427 genotypes (TT and CT + CC) and allele (T) with KTCN susceptibility in Iranian population. Further studies in other ethnicities are required to verify our results.

Indexed as

Genetic Predisposition to DiseasePolymorphism, Single NucleotideAdolescentAdultAgedAged, 80 and overAllelesCase-Control StudiesChildCollagen Type IVDNAFemaleGene FrequencyGenotypeHumansIncidenceCOL4A4 protein, humanCollagen Type IVDNAKIF26B protein, humanKinesinsCOL4A4Gene polymorphismKeratoconusKIF26B

Identifiers

PMID31077021
OpenAlexW2944029329

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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.