Evidence map›Paper›PMID 25686055›Full record

Trial reportIndian journal of ophthalmology2015

Circulating levels of reactive oxygen species in patients with nonproliferative diabetic retinopathy and the influence of antioxidant supplementation: 6-month follow-up.

Daniela Domanico, Serena Fragiotta, Alessandro Cutini, Carmela Carnevale, Luigi Zompatori, Enzo Maria Vingolo

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Indian journal of ophthalmology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

28 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pine bark (Pinus spp.) extract for treating chronic disorders.The Cochrane database of systematic reviews · 2020
    Pooled it
  3. Diet and risk of diabetic retinopathy: a systematic review.European journal of epidemiology · 2018
    Pooled it
  4. Review
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  10. Diabetic retinopathy: emerging concepts of current and potential therapy.Naunyn-Schmiedeberg's archives of pharmacology · 2023
    Review
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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.

Daniela Domanico
Serena Fragiotta
Alessandro Cutini
Carmela CarnevaleDepartment of Sense Organs UOC B, Policlinico Umberto I Hospital, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy.
Luigi Zompatori
Enzo Maria Vingolo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe aim was to evaluate circulating levels of reactive oxygen species (ROS) and changes in central macular thickness (CMT) in patients with nonproliferative diabetic retinopathy (NPDR) after antioxidant supplementation. MATERIALS AND

methodsA total of 68 patients (68 eyes) with NPDR were enrolled. Patients were randomly divided into two groups: Treated with antioxidant supplement (Group A) and untreated control group (Group B). Each tablet, for oral administration, containing pycnogenol 50 mg, Vitamin E 30 mg and coenzyme Q10 20 mg. CMT and free oxygen radical test (FORT) were analyzed at baseline (T0), 3 (T1) and 6 (T2) months in both groups.

resultsIn Group A, FORT levels and CMT were significantly reduced over time (P < 0.001 for both). In Group B, FORT levels were increased (P < 0.001) and CMT did not vary significantly (P = 0.81) over 3 time points.

conclusionsThis is the first study showing the reduction of ROS levels in patients with NPDR thanks to antioxidant therapy. Moreover, our findings have suggested also an influence on retinal thickness.

Indexed as

Dietary SupplementsAdjuvants, ImmunologicAdultAgedAntioxidantsBiomarkersDiabetic RetinopathyDose-Response Relationship, DrugDrug Therapy, CombinationFemaleFlavonoidsFluorescein AngiographyFollow-Up StudiesFundus OculiHumansHydroxymethylglutaryl-CoA Reductase InhibitorsAdjuvants, ImmunologicAntioxidantsBiomarkerscoenzyme Q10FlavonoidsHydroxymethylglutaryl-CoA Reductase InhibitorsPlant ExtractspycnogenolsReactive Oxygen SpeciesUbiquinoneVitamin EVitamins

Identifiers

PMID25686055
PMCPMC4363979

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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.