Evidence map›Paper›PMID 33036304›Full record

Observational studyBiomolecules2020

Changes in the Systemic Expression of Sirtuin-1 and Oxidative Stress after Intravitreal Anti-Vascular Endothelial Growth Factor in Patients with Retinal Vein Occlusion.

De-Kuang Hwang, Yuh-Lih Chang, Tai-Chi Lin, Chi-Hsien Peng, Ke-Hung Chien, Ching-Yao Tsai, Shih-Jen Chen, Kuan-Hsuan Chen, Min-Yen Hsu

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Biomolecules, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 2 pooled it
1.3field-weighted citation impact, top 19% 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

5 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. 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

9 authors at 5 institutions in 1 country.

De-Kuang HwangDepartment of Ophthalmology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
Yuh-Lih ChangInstitute of Pharmacology, National Yang-Ming University, Taipei 112, Taiwan.
Tai-Chi LinDepartment of Ophthalmology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
Chi-Hsien PengDepartment of Ophthalmology, Shin Kong Wu Ho-Su Memorial Hospital & Fu-Jen Catholic University, Taipei 24352, Taiwan.
Ke-Hung ChienInstitute of Clinical Medicine, National Yang-Ming University, Taipei 112, Taiwan.
Ching-Yao TsaiDepartment of Ophthalmology, Taipei City Hospital, Taipei 103, Taiwan.
Shih-Jen ChenDepartment of Ophthalmology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
Kuan-Hsuan ChenDepartment of Pharmacy, Taipei, Veterans General Hospital, Taipei 112, Taiwan.
Min-Yen HsuDepartment of Ophthalmology, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
National Yang Ming Chiao Tung University · TWFu Jen Catholic University · TWNational Chung Hsing University · TWTaipei City Hospital · TWTri-Service General Hospital · TW

Funding

grants in aid from the Research Foundation of Cardiovascular Medicine 100-01-010intramural grants from the Taipei Veterans General Hospital intramural grants from the Taipei Veterans General HospitalMinistry of Science and Technology of Taiwan 106-2314-B-075A-001,107-2221-E-040-010, 109-2636-E-040-001
6 · The paper itself

Abstract

objectivesRetinal vein occlusions (RVO) are associated with systemic risk factors. However, the ocular occlusive events might also influence a patient's systemic condition. This study tried to investigate serum biomarkers associated with oxidative stress, before and after intravitreal anti-vascular endothelial growth factor (aVEGF) therapy in patients with RVOs.

methodsNewly-onset RVO patients were categorized into two groups: comorbid with macular edema requiring aVEGF therapy (treatment group) and no edema (observation group). Age and sex-matched patients (who received cataract surgery) were included as the control group. Intravitreal ranibizumab with a pro-re-nata regimen were administered. Serum samples were collected prior to treatment, at 6 and 12 months after therapy/observation and were collected once before controls who received cataract surgery. mRNA expression of sirtuin-1, its downstream genes, anti-oxidative biomarkers, and proinflammatory cytokines were measured.

resultsThere were 32, 26, and 34 patients enrolled in the treatment, observation, and control groups, respectively. The expressions of sirtuin-1 and its downstream genes were significantly lower in patients with RVO compared with the control group. Sirtuin-1 gene expression increased after 1 year of aVEGF therapy in the treatment group but remained unchanged in the observation group. Biomarkers of oxidative stress and proinflammatory cytokines were reduced after 1 year of aVEGF therapy. These biomarkers remained with no changes in the observation group.

conclusionsOur study showed that the systemic oxidative stress increased in RVO patients. The aVEGF therapy could alter the gene expression of anti-oxidative proteins and reduce systemic oxidative stress in these patients.

Indexed as

Retinal Vein OcclusionAgedAged, 80 and overFemaleGene Expression Regulation, EnzymologicHumansIntravitreal InjectionsMaleOxidative StressProspective StudiesRanibizumabSirtuin 1Vascular Endothelial Growth Factor ARanibizumabSIRT1 protein, humanSirtuin 1Vascular Endothelial Growth Factor AVEGFA protein, humanoxidative stressRVOSIRT1vascular endothelial growth factorVEGF

Identifiers

PMID33036304
PMCPMC7601748
OpenAlexW3092245289

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.