Evidence map›Paper›PMID 32210788›Full record

ArticleFrontiers in aging neuroscience2020

Hypoxia-Inducible Factor 1α and 2α Have Beneficial Effects in Remote Ischemic Preconditioning Against Stroke by Modulating Inflammatory Responses in Aged Rats.

Xiangnan Du, Jian Yang, Cuiying Liu, Sainan Wang, Chencheng Zhang, Heng Zhao, Huishan Du, Xiaokun Geng

Open access · goldAbstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

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  14. Multiple Sclerosis: Inflammatory and Neuroglial Aspects.Current issues in molecular biology · 2023
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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 2 institutions in 2 countries.

Xiangnan DuDepartment of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
Jian YangChina-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
Cuiying LiuChina-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
Sainan WangChina-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
Chencheng ZhangChina-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
Heng ZhaoDepartment of Neurosurgery, School of Medicine, Stanford University, Stanford, CA, United States.
Huishan DuDepartment of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
Xiaokun GengDepartment of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
Beijing Luhe Hospital Affiliated to Capital Medical University · CNStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Limb remote ischemic preconditioning (RIPC) has been proven to alleviate stroke injury in young rats, but its protective effect and its mechanism in aged rats are still unclear. Hypoxia-inducible factor (HIF) is one of the important markers of stroke, and its high expression plays an important role in the pathogenesis of stroke. In this study, we tested the hypothesis that RIPC could regulate the expression of HIF, leading to reduced inflammatory responses in aged rats. Stroke was induced by transient middle cerebral artery occlusion (MCAo) in aged rats, and RIPC was conducted in both hind limbs. The HIF-1α and HIF-2α mRNA and protein were examined by real-time RT-PCR and western blotting (WB). Inflammatory cytokines in the peripheral blood and brain were measured using AimPlex multiplex immunoassays. The protein levels of p-Akt, Akt, p-ERK, and ERK were examined by WB. We investigated that RIPC reduced the infarct size, improved neurological functions, and decreased the expression of HIF-1α and HIF-2α in the ischemic brain. RIPC reduced the levels of IL-1β, IL-6 and IFN-γ in the peripheral blood and the levels of IL-1β and IFN-γ in the ischemic brain 48 h post-stroke. Moreover, intraperitoneal injection of the HIF inhibitor, acriflavine hydrochloride (ACF), abolished the protection of RIPC with respect to infarct size and neurological functions and neutralized the downregulation of pro-inflammatory IL-1β, IL-6 and IFN-γ. ACF also reversed the activation of the Akt signaling pathway induced by RIPC following stroke. HIF may play a key role in RIPC, which was likely mediated by the Akt signaling pathway and systemic modulation of the inflammatory response in aged rats.

Indexed as

Akt signaling pathwaycerebral ischemiahypoxia-inducible factorinflammatory cytokinesremote ischemic preconditioning

Identifiers

PMID32210788
PMCPMC7076079
OpenAlexW3012345134

What OpenQuestion holds

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LicenceCC BY
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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.