Evidence map›Paper›PMID 33594333›Full record

ArticleWorld journal of diabetes2021

Plasma melatonin levels in patients with diabetic retinopathy secondary to type 2 diabetes.

Wen-Cui Wan, Yang Long, Wei-Wei Wan, Hong-Zhuo Liu, Hao-Hao Zhang, Wei Zhu

Open access · diamondAbstract read
In one paragraph

Article in World journal of diabetes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 33% 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Effects of Melatonin on Diabetic Neuropathy and Retinopathy.International journal of molecular sciences · 2021
    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

6 authors at 1 institution in 1 country.

Wen-Cui WanDepartment of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China.
Yang LongDepartment of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China.
Wei-Wei WanDepartment of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China.
Hong-Zhuo LiuDepartment of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China.
Hao-Hao ZhangDepartment of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China.
Wei ZhuDepartment of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China. shzhuwei0722@163.com.
First Affiliated Hospital of Zhengzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMelatonin is reported to be related to diabetes mellitus (DM) risk; however, the effect of melatonin on diabetic retinopathy (DR) risk remains unclear.

aimThe aim of this study was to determine the effect of melatonin on DR risk.

methodsA hospital-based case-control study was conducted from January 2020 to June 2020. DR was assessed using the Diabetic Retinopathy preferred practice pattern (PPP)-updated 2019 criteria. The participants were divided into the DM cases without DR (NDR) group, non-proliferative DR (NPDR) group and proliferative DR (PDR) group. Plasma melatonin concentration was detected with the enzyme-linked immunosorbent assay kit. The relationship between plasma melatonin concentration and DR risk as well as severity was assessed.

resultsIt was found that plasma melatonin was 72.83 ± 16.25, 60.38 ± 13.43, 44.48 ± 10.30 and 44.69 ± 8.95 pg/mL in healthy controls, NDR group, NPDR and PDR group, respectively. In addition, it was found that plasma melatonin could be used as a potential diagnostic biomarker for DR (AUC = 0.893,

conclusionThe data obtained in this study demonstrated that plasma melatonin concen-tration was decreased in DR cases and could be used as a sensitive and specific marker for the diagnosis of DR. A significant positive relationship between total bilirubin and melatonin was detected. More related studies are required to understand the role of melatonin in DR.

Indexed as

Case-control studyDiabetic retinopathyMelatoninRisk factorType 2 diabetes

Identifiers

PMID33594333
PMCPMC7839166
OpenAlexW3122402921

What OpenQuestion holds

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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.