Evidence mapPaperPMID 32104713Full record

ArticleJournal of diabetes research2020

Ischemic Postconditioning Mitigates Retinopathy in Tree Shrews with Diabetic Cerebral Ischemia.

Ling Zhao, Qiwei Liao, Yueting Zhang, Shufen Tan, Shuqing Li, Tingyu Ke

Open access · goldAbstract read
In one paragraph

Article in Journal of diabetes research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.2field-weighted citation impact, top 55% 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, 5 citations in OpenAlex.

  1. Review
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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

6 authors at 1 institution in 1 country.

Ling ZhaoDepartment of Endocrinology, The Second Affiliated Hospital of Kunming Medical University, Yunnan 650101, China.ORCID https://orcid.org/0000-0001-9980-4903
Qiwei LiaoDepartment of Cardiology, The Yan-an Affiliated Hospital of Kunming Medical University, Yunnan 650051, China.ORCID https://orcid.org/0000-0003-3658-897X
Yueting ZhangDepartment of Endocrinology, The Second Affiliated Hospital of Kunming Medical University, Yunnan 650101, China.ORCID https://orcid.org/0000-0002-2549-0419
Shufen TanDepartment of Gynecologic Oncology, The Third Affiliated Hospital of Kunming Medical University, Yunnan 650101, China.ORCID https://orcid.org/0000-0002-3235-9988
Shuqing LiDepartment of Pathophysiology, Kunming Medical University, Yunnan 650050, China.ORCID https://orcid.org/0000-0002-3885-1092
Tingyu KeDepartment of Endocrinology, The Second Affiliated Hospital of Kunming Medical University, Yunnan 650101, China.ORCID https://orcid.org/0000-0001-8848-5441
Kunming Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ischemic postconditioning (PC) is proved to efficiently protect diabetic patients with acute myocardial infarction from ischemia-reperfusion injury. We aimed to explore the protective roles of ischemic PC on diabetic retinopathy in tree shrews with diabetic cerebral ischemia. A diabetic tree shrew model was established through high-fat diet feeding combined with streptozotocin (STZ) injection, while cortical thrombotic cerebral ischemia was induced photochemically. Tree shrews were divided into the normal control group, sham operation group, diabetes mellitus group, diabetes mellitus+cerebral ischemia group, and diabetes mellitus+cerebral ischemia+PC group (in which the tree shrews with diabetic cerebral ischemia were treated with ischemic PC). H&E staining was used to examine the pathological changes in the retina, and immunohistochemistry was performed to determine the retinal expression of VEGF (vascular endothelial growth factor). The modeling resulted in 77% tree shrews with diabetes. Ischemic PC reduced the blood glucose levels in the tree shrews with diabetic cerebral ischemia. Tree shrews with diabetes had thinned retina with disordered structures, and these pathological changes were aggravated after cerebral ischemia. The retinopathy was alleviated after ischemic PC. Retina expression of VEGF was mainly distributed in the ganglion cell layer in tree shrews. Diabetes and cerebral ischemia increased retinal VEGF expression in a step-wise manner, while additional ischemic PC reduced retinal VEGF expression. Therefore, ischemic PC effectively alleviates retinopathy in tree shrews with diabetic cerebral ischemia, and this effect is associated with reduced retinal VEGF expression.

Indexed as

AnimalsBlood GlucoseBrain IschemiaDiabetes Mellitus, ExperimentalDiabetic RetinopathyIschemic PostconditioningMaleRetinaTreatment OutcomeTupaiidaeVascular Endothelial Growth Factor ABlood GlucoseVascular Endothelial Growth Factor A

Identifiers

PMID32104713
PMCPMC7037873
OpenAlexW3005833337

What Socratic holds

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LicenceCC BY
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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 Socratic graph.