Evidence map›Paper›PMID 31096936›Full record

ArticleBMC ophthalmology2019

Protective effects of hydrogen gas in a rat model of branch retinal vein occlusion via decreasing VEGF-α expression.

Pan Long, Weiming Yan, Mengshan He, Qianli Zhang, Zhe Wang, Manhong Li, Junhui Xue, Tao Chen, Jing An, Zuoming Zhang

Open access · goldAbstract read
In one paragraph

Article in BMC ophthalmology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Self-Propelled HPB@Lip@AB Nanomotors Ameliorate Dry Eye Disease.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Hydrogen agronomy: research progress and prospects.Journal of Zhejiang University. Science. B
    Review
  11. 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

10 authors at 2 institutions in 1 country.

Pan LongCenter of Clinical Aerospace Medicine, Fourth Military Medical University, No.169 Changle West Road, Xi'an, 710032, Shaanxi, China.
Weiming YanDepartment of Ophthalmology, The 900th Hospital of the Joint Logistics Team of Chinese PLA, Fuzhou, 350025, Fujian, China.
Mengshan HeDepartment of Chinese Material Medical and Natural Medicines, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Qianli ZhangCompany 11 Brigade 4, College of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Zhe WangCompany 11 Brigade 4, College of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Manhong LiDepartment of Ophthalmology of Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Junhui XueCenter of Clinical Aerospace Medicine, Fourth Military Medical University, No.169 Changle West Road, Xi'an, 710032, Shaanxi, China.
Tao ChenCenter of Clinical Aerospace Medicine, Fourth Military Medical University, No.169 Changle West Road, Xi'an, 710032, Shaanxi, China. baiidtf0506@126.com.
Jing AnInstitute of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University, No.76 Yanta Weast Road, Xi'an, 710061, Shaanxi, China. anjing@xjtu.edu.cn.
Zuoming ZhangCenter of Clinical Aerospace Medicine, Fourth Military Medical University, No.169 Changle West Road, Xi'an, 710032, Shaanxi, China. zhangzm@fmmu.edu.cn.
Air Force Medical University · CNXi'an Jiaotong University · CN

Funding

National Natural Science Foundation of China (CN) 81500724the Shaanxi Province Programs for Social Development of Science and Technology 2016SF-063
6 · The paper itself

Abstract

backgroundOxidative stress (OS) is an essential factor in the pathogenesis of branch retinal vein occlusion (BRVO). Studies have demonstrated the role of hydrogen gas in the regulation of OS. This study was designed to evaluate the efficacy of hydrogen gas on the BRVO rat model.

methodsTwenty-four BRVO rats were randomly divided into two groups: the hydrogen gas (H) group (42% H

resultsFull-field electroretinography (ffERG) revealed that the amplitude of the b-wave (dark-adaptation 3.0 response), the amplitude of the OPs2 wave and the light-adapted flicker response in the H group were all higher than those in the M group at 7 d post-occlusion (all p < 0.05). The reopen time of occlusive retinal vessels in the H group was 2.235 ± 1.128 d, which was shorter than that in the M group (4.234 ± 2.236 d, p < 0.05). The rats in the H group had a thinner IPL + GCL + NFL and an increased total retina compared with those in the M group at 3 d post-occlusion (p < 0.05), while the rats in the H group had a thicker INL, IPL + GCL + NFL and total retina compared with those at 7, 14 and 30 d post-occlusion (p < 0.05). Moreover, the flow velocity of ear vein blood was increased in the H group compared with that in the M group (p < 0.05). The expression of VEGF-α in the H group was dramatically decreased compared with that in the M group at 1, 7 and 14 d post-occlusion (p < 0.05), while the expression kept in similar level at 30 d post-occlusion (p > 0.05).

conclusionsOur findings demonstrate that inhalation of hydrogen gas could alleviate retinal oedema, shorten reopen time and improve retinal function, and the potential mechanism might be related to a decrease in VEGF-α expression.

Indexed as

AnimalsDisease Models, AnimalElectroretinographyHydrogenMaleOxidative StressRatsRats, Sprague-DawleyRetinaRetinal Vein OcclusionVascular Endothelial Growth Factor AHydrogenVascular Endothelial Growth Factor ABranch retinal vein occlusionElectroretinographyHydrogen gasVascular endothelial growth factor

Identifiers

PMID31096936
PMCPMC6524281
OpenAlexW2947079806

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.