Evidence map›Paper›PMID 28256111›Full record

ArticleCNS neuroscience & therapeutics2017

SIRT1-dependent AMPK pathway in the protection of estrogen against ischemic brain injury.

Jin-Min Guo, He Shu, Lei Wang, Jian-Jiang Xu, Xue-Cai Niu, Li Zhang

Open access · bronzeAbstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 2 pooled it
4.3field-weighted citation impact, top 5% 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

44 citing papers in PubMed, 2 syntheses or guidelines pooled it, 56 citations in OpenAlex.

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  16. Role of NADCellular and molecular neurobiology · 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

6 authors at 2 institutions in 1 country.

Jin-Min GuoDepartment of Pharmacology, Jinan Military General Hospital, Jinan, Shandong, China.ORCID http://orcid.org/0000-0001-5737-7384
He ShuDepartment of Pharmacology, Jinan Military General Hospital, Jinan, Shandong, China.
Lei WangDepartment of Orthopaedics, Jinan Military General Hospital, Jinan, Shandong, China.
Jian-Jiang XuDepartment of Pharmacology, Jinan Military General Hospital, Jinan, Shandong, China.
Xue-Cai NiuDepartment of Radiotheropy, The Forth Hospital of Jinan City, Jinan, Shandong, China.
Li ZhangDepartment of Pharmacology, Jinan Military General Hospital, Jinan, Shandong, China.
Jinan Military General Hospital · CNFourth People’s Hospital of Jinan · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsStroke is a major cause of mortality and disability, especially for postmenopausal women. In view of the protective action of estrogen, hormone therapy remains the only effective way to limit this risk. The objective of this study was to investigate the efficiency and underlying mechanisms of estrogen neuroprotection.

methodsSubcutaneous injection of 17β-estradiol in rats after ovariectomy (OVX) was used to manipulate estrogen level and explore the effects of estrogen in cerebral ischemic damage both in vivo and in vitro. Silent mating type information regulation 2 homolog 1 (SIRT1) knockout mice and adenosine monophosphate (AMP)-activated kinase (AMPK) inhibitor Compound C were also used to investigate the underlying pathway of estrogen.

resultsEstrogen deficiency induced by OVX aggravated brain infarction in experimentally induced cerebral ischemia rats, whereas estrogen pretreatment reduced ischemia-induced cerebral injuries. Neurons of estrogen deficiency models were susceptible to apoptosis under oxygen-glucose deprivation (OGD). In contrast, neurons with estrogen-supplemented serum exhibited restored resistance to cell apoptosis. In OGD neurons, estrogen promoted AMPK activation through estrogen receptor α, and neuroprotection of estrogen was prevented by AMPK inhibition. Estrogen increased SIRT1 expression and activation, and estrogen-induced AMPK activation disappeared in SIRT1 knockout neurons. Moreover, estrogen-induced neuroprotection was abolished in SIRT1 knockout mice and AMPK-inhibited rats.

conclusionOur data support that estrogen protects against ischemic stroke through preventing neuron death via the SIRT1-dependent AMPK pathway.

Indexed as

AMP-Activated Protein KinasesAnimalsAnimals, NewbornBrain InfarctionCell HypoxiaCells, CulturedCerebral CortexDisease Models, AnimalEnzyme ActivationEstradiolEstrogensFemaleInfarction, Middle Cerebral ArteryMiceMice, Inbred C57BLMice, KnockoutAMP-Activated Protein KinasesEstradiolEstrogensSirt1 protein, mouseSirtuin 1AMPKestrogenischemic strokeSIRT1

Identifiers

PMID28256111
PMCPMC6492707
OpenAlexW2592745481

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.