Evidence map›Paper›PMID 33716719›Full record

ArticleFrontiers in aging neuroscience2021

The Association of Suppressed Hypoxia-Inducible Factor-1 Transactivation of Angiogenesis With Defective Recovery From Cerebral Ischemic Injury in Aged Rats.

Yingjia Guo, Junpeng Zhou, Xianglong Li, Ying Xiao, Jingyao Zhang, Yutao Yang, Li Feng, Y James Kang

Open access · goldAbstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

13 citing papers in PubMed, 18 citations in OpenAlex.

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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.

Yingjia GuoRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.
Junpeng ZhouRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.
Xianglong LiRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.
Ying XiaoRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.
Jingyao ZhangRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.
Yutao YangRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.
Li FengRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.
Y James KangRegenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.
West China Hospital of Sichuan University · CNAffiliated Hospital of Southwest Medical University · CNSichuan University · CNUniversity of Tennessee Health Science Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Elderly patients suffer more brain damage in comparison with young patients from the same ischemic stroke. The present study was undertaken to test the hypothesis that suppressed hypoxia-inducible factor-1 (HIF-1) transcription activity is responsible for defective recovery after ischemic stroke in the elders. Aged and young rats underwent 1-h transient middle cerebral artery occlusion (MCAO) to produce cerebral ischemic injury. The initial cerebral infarct volume in the young gradually declined as time elapsed, but in the aged rats remained the same. The defective recovery in the aged was associated with depressed angiogenesis and retarded neurorestoration. There was no difference in HIF-1α accumulation in the brain between the two age groups, but the expression of HIF-1 regulated genes involved in cerebral recovery was suppressed in the aged. In confirmation, inhibition of HIF-1 transactivation of gene expression in the young suppressed cerebral recovery from MCAO as the same as that observed in the aged rats. Furthermore, a copper metabolism MURR domain 1 (COMMD1) was significantly elevated after MCAO only in the brain of aged rats, and suppression of COMMD1 by siRNA targeting COMMD1 restored HIF-1 transactivation and improved recovery from MCAO-induced damage in the aged brain. These results demonstrate that impaired HIF-1 transcription activity, due at least partially to overexpression of COMMD1, is associated with the defective cerebral recovery from ischemic stroke in the aged rats.

Indexed as

agingCu metabolism MURR domain 3hypoxia-inducible factor-1ischemic strokeMCAO

Identifiers

PMID33716719
PMCPMC7953721
OpenAlexW3135427965

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.