Evidence map›Paper›PMID 34003412›Full record

ArticleMetabolic brain disease2021

Exercise training ameliorates cognitive dysfunction in amyloid beta-injected rat model: possible mechanisms of Angiostatin/VEGF signaling.

Aliasghar Zarezadehmehrizi, Junyoung Hong, Jonghae Lee, Hamid Rajabi, Reza Gharakhanlu, Naser Naghdi, Mohammad Azimi, Yoonjung Park

Abstract read
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In one paragraph

Article in Metabolic brain disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 18% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  11. Treatment with the vascular endothelial growth factor-A antibody, bevacizumab, has sex-specific effects in a rat model of mild traumatic brain injury.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 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

8 authors at 4 institutions in 2 countries.

Aliasghar ZarezadehmehriziLaboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston, Houston, TX, USA.
Junyoung HongLaboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston, Houston, TX, USA.
Jonghae LeeLaboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston, Houston, TX, USA.
Hamid RajabiDepartment of Exercise Physiology, Faculty of Physical Education and Sport Science, Kharazmi University, Tehran, Iran.
Reza GharakhanluDepartment of Physical Education and Sport Science, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran.
Naser NaghdiDepartment of Physiology and Pharmacology, Pasteur Institute of Iran 13164, Tehran, Iran.
Mohammad AzimiDepartment of Physical Education and Sport Science, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran.
Yoonjung ParkLaboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston, Houston, TX, USA. ypark22@central.uh.edu.ORCID http://orcid.org/0000-0003-2257-8455
University of Houston · USKharazmi University · IRTarbiat Modares University · IRPasteur Institute of Iran · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vascular endothelial growth factor (VEGF) regulates angio/neurogenesis and also tightly links to the pathogenesis of Alzheimer's disease (AD). Although exercise has a beneficial effect on neurovascular function and cognitive function, the direct effect of exercise on VEGF-related signaling and cognitive deficit in AD is incompletely understood. Therefore, the purpose of this study was to investigate the protective effect of exercise on angiostatin/VEGF cascade and cognitive function in AD model rats. Wistar male rats were randomly divided into five groups: control (CON), injection of DMSO (Sham-CON), CON-exercise (sham-EX), intrahippocampal injection of Aβ (Aβ), and Aβ-exercise (Aβ-EX). Rats in EX groups underwent treadmill exercise for 4 weeks, then the cognitive function was measured by the Morris Water Maze (MWM) test. mRNA levels of hypoxia-induced factor-1α (HIF-1α), vascular endothelial growth factor (VEGF), vascular endothelial growth factor receptor 2 (VEGFR2), and angiostatin were determined in hippocampus by RT-PCR. We found that spatial learning and memory were impaired in Aβ-injected rats, but exercise training improved it. Moreover, exercise training increased the reduced mRNA expression level of VEGF signaling, including HIF1α, VEGF, and VEGFR2 in the hippocampus from Aβ-injected rats. Also, the mRNA expression level of angiostatin was elevated in the hippocampus from Aβ-injected rats, and exercise training abrogated its expression. Our findings suggest that exercise training improves cognitive function in Aβ-injected rats, possibly through enhancing VEGF signaling and reducing angiostatin.

Indexed as

Alzheimer DiseaseCognitive DysfunctionAmyloid beta-PeptidesAngiostatinsAnimalsDisease Models, AnimalHippocampusMaleMaze LearningRatsRats, WistarVascular Endothelial Growth Factor AAmyloid beta-PeptidesAngiostatinsVascular Endothelial Growth Factor AAngiostatinCognitive dysfunctionExerciseVEGF

Identifiers

PMID34003412
OpenAlexW3135411227

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.