Evidence map›Paper›PMID 34113073›Full record

Trial reportClinical ophthalmology (Auckland, N.Z.)2021

The Effect of Dietary Antioxidant Supplementation in Patients with Glaucoma.

Noriko Himori, Maki Inoue Yanagimachi, Kazuko Omodaka, Yukihiro Shiga, Satoru Tsuda, Hiroshi Kunikata, Toru Nakazawa

Open access · goldAbstract readCase ReportsClinical Trial
In one paragraph

Trial report in Clinical ophthalmology (Auckland, N.Z.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.1field-weighted citation impact, top 10% 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

22 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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  11. DNA Damage and Repair in Eye Diseases.International journal of molecular sciences · 2023
    Review
  12. Article
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  14. Review
  15. Article
  16. Review
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  19. Crocetin: A Systematic Review.Frontiers in pharmacology · 2021
    Review
  20. 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

7 authors at 1 institution in 1 country.

Noriko HimoriDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.ORCID 0000-0001-8307-0458
Maki Inoue YanagimachiDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Kazuko OmodakaDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Yukihiro ShigaDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Satoru TsudaDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Hiroshi KunikataDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Toru NakazawaDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Tohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOxidative stress may be a risk factor for glaucoma, and many previous reports have suggested that antioxidants could be a promising treatment. Here, we investigated the effects of a novel supplement containing three food-derived antioxidants (hesperidin, crocetin, and PATIENTS AND

methodsThis study had a prospective, single arm design. Thirty Japanese glaucoma patients were recruited and given 4 tablets with ample water twice a day for 8 weeks. The treatment was stopped, and the subjects were followed for an additional 8 weeks. We measured biological antioxidant potential (BAP) with a free radical analyzer. We also measured urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG; a marker of oxidative DNA damage). Clinical laboratory data were measured in venous blood samples. Clinical parameters were also recorded. Comparisons used a one-way analysis of variance (ANOVA) followed by Dunnett's test.

resultsThe 8-OHdG level was not reduced. We also divided the patients into groups with high or low oxidative stress. In patients with relatively high oxidative stress, the 8-OHdG level was significantly reduced at weeks 4, 8, 12, and 16 (

conclusionAn 8-week oral course of antioxidant supplementation was effective in patients with a high oxidative stress level. Dietary supplementation could hold promise in the treatment of systemic oxidative stress-related diseases.

Indexed as

8-OHdGglaucomaoxidative stresssupplement

Identifiers

PMID34113073
PMCPMC8183457
OpenAlexW3168829304

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.