Evidence map›Paper›PMID 33009517›Full record

ArticleEye (London, England)2021

Association between dietary antioxidants and risk for diabetic retinopathy in a Chinese population.

Chongyang She, Fu Shang, Min Cui, Xiufen Yang, Ningpu Liu

Open access · bronzeAbstract read
In one paragraph

Article in Eye (London, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
0.6field-weighted citation impact, top 41% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Pooled it
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  6. Recent Progress in Selenium Nanomedicines for Ocular Diseases.International journal of nanomedicine · 2026
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  16. Porous Se@SiOMolecular medicine (Cambridge, Mass.) · 2024
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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

5 authors at 4 institutions in 2 countries.

Chongyang SheDepartment of Ophthalmology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Fu ShangJean Mayer U.S. Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA.
Min CuiDepartment of Ophthalmology, Beijing Haidian Hospital, Beijing, China.
Xiufen YangDepartment of Ophthalmology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
Ningpu LiuBeijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China. nliu001@gmail.com.ORCID http://orcid.org/0000-0002-8319-1425
Capital Medical University · CNBeijing Haidian Hospital · CNBeijing Tongren Hospital · CNTufts University · US

Funding

Beijing Education Committee Cooperation Building Foundation Project KZ201110025028National Natural Science Foundation of China (National Science Foundation of China) 81070734
6 · The paper itself

Abstract

backgroundDiabetic retinopathy (DR) is related to oxidative stress and insufficient intake of dietary antioxidants may be associated with the onset and progression of DR. This study aimed to detect the association between main dietary antioxidants intake and the risk for DR.

methodsThis is a cross-sectional study of a Chinese urban population. Four hundred and fifty-five subjects with type 2 diabetes were recruited and divided into diabetic patients without retinopathy (DWR) group and DR group based on their retinal status. CSMO (clinically significant macular oedema) was diagnosed by stereoscopic photography. Demographic and lifestyle characteristics were ascertained by questionnaire. General physical and ophthalmic examinations were completed for all subjects. Dietary antioxidants were assessed by 3-day food records. Subjects who have taken any type of vitamin supplements were excluded from the study. The association of dietary antioxidants with the risk for DR was analysed by logistic regression with adjustment of other factors. The dietary antioxidants levels of the CSMO subjects and non-CSMO subjects were compared using the Wilcoxon rank sum test.

resultsOne hundred and nineteen subjects in DR group and 336 subjects in DWR group participated in the study. Only ten DR subjects had CSMO. The results showed that higher vitamin E (OR (95% CI):0.97 (0.95, 1.00), P = 0.036) and selenium (OR (95% CI):0.98 (0.96, 1.00), P = 0.017) intake appear to be the protective factors of DR. The dietary antioxidants levels of CSMO and non-CSMO subjects had no statistical differences (P > 0.05).

conclusionsDietary antioxidants intake, particularly vitamin E and selenium, were observed to have protective effects on DR.

Indexed as

Diabetes Mellitus, Type 2Diabetic RetinopathyAntioxidantsChinaCross-Sectional StudiesHumansRisk FactorsAntioxidants

Identifiers

PMID33009517
PMCPMC8225784
OpenAlexW3089603067

What OpenQuestion holds

Textmetadata
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.