Evidence map›Paper›PMID 29030794›Full record

ArticleInternational ophthalmology2018

VEGF-A gene polymorphisms and responses to intravitreal ranibizumab treatment in patients with diabetic macular edema.

Mehmet Tetikoğlu, Zafer Yüksel, Serdar Aktas, Haci Murat Sağdik, Fatih Özcura

Abstract read
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In one paragraph

Article in International ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Polymorphisms inBiomedicines · 2025
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Genetics of Diabetic Retinopathy.Current diabetes reports · 2019
    Review
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 2 institutions in 2 countries.

Mehmet TetikoğluDepartment of Ophthalmology, Dumlupinar University School of Medicine, 43270, Kutahya, Turkey. drtetikoglu@yahoo.com.tr.
Zafer YükselCentogene AG, Rostock, Germany.
Serdar AktasDepartment of Ophthalmology, Dumlupinar University School of Medicine, 43270, Kutahya, Turkey.
Haci Murat SağdikDepartment of Ophthalmology, Dumlupinar University School of Medicine, 43270, Kutahya, Turkey.
Fatih ÖzcuraDepartment of Ophthalmology, Dumlupinar University School of Medicine, 43270, Kutahya, Turkey.
Dumlupinar University · TRCentogene (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the association between VEGF gene polymorphisms and the responses to treatment with intravitreal ranibizumab (IVR) in patients with diabetic macular edema (DME).

methodsThis prospective study, conducted at the Kutahya Dumlupinar University Faculty of Medicine, included 95 patients with DME that were treated with IVR and 32 patients without DME despite proliferative diabetic retinopathy (PDR). The participants were divided into three groups: DME with non-proliferative diabetic retinopathy, DME with PDR, and PDR without DME; patients with DME who were treated with IVR were further divided into two groups based on their response to the treatment. Each patient was genotyped for five single nucleotide variations (SNVs) in VEGF-A: rs2010963, rs2146323, rs10434, rs833069, and rs6921438.

resultThere was a statistically significant difference in allelic distribution of VEGF-A rs833069 polymorphism in relation to the severity of diabetic retinopathy (DRP) (p = 0.031). The allelic distribution of VEGF-A rs2146323 polymorphism tended to be associated with the severity of DRP (p = 0.069). There were no statistically significant differences in the allelic distribution of the studied five SNVs in DME patients regarding the patients' responses to IVR therapy.

conclusionsThere is no association between the studied VEGF-A SNVs and the responses to IVR therapy in DME. However, the VEGF-A rs833069 gene polymorphism has a clear association with the severity of diabetic retinopathy.

Indexed as

Polymorphism, Single NucleotideAngiogenesis InhibitorsDiabetic RetinopathyFemaleGenotyping TechniquesHumansIntravitreal InjectionsMacular EdemaMaleMiddle AgedPolymerase Chain ReactionProspective StudiesRanibizumabTomography, Optical CoherenceVascular Endothelial Growth Factor AVisual AcuityAngiogenesis InhibitorsRanibizumabVascular Endothelial Growth Factor AVEGFA protein, humanDiabetic macular edemaDiabetic retinopathyRanibizumabVEGF gene polymorphisms

Identifiers

PMID29030794
OpenAlexW2761226739

What OpenQuestion holds

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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.