Evidence map›Paper›PMID 25761704›Full record

ArticleMolecular brain2015

TRPM7 inhibitor carvacrol protects brain from neonatal hypoxic-ischemic injury.

Wenliang Chen, Baofeng Xu, Aijiao Xiao, Ling Liu, Xiaoyan Fang, Rui Liu, Ekaterina Turlova, Andrew Barszczyk, Xiao Zhong, Christopher L F Sun and 3 more

Open access · goldAbstract read
In one paragraph

Article in Molecular brain, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 1 pooled it
9.5field-weighted citation impact, top 1% 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

77 citing papers in PubMed, 1 synthesis or guideline pooled it, 132 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

17 more citing papers are in PubMed but not listed here.

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

13 authors at 3 institutions in 2 countries.

Wenliang ChenDepartment of Surgery, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. wenliang.chen@utoronto.ca.
Baofeng XuDepartment of Surgery, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. xubf@jlu.edu.cn.
Aijiao XiaoDepartment of Physiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. xaj527@163.com.
Ling LiuDepartment of Physiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. liuling1978@163.com.
Xiaoyan FangDepartment of Surgery, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. fxylele@yeah.net.
Rui LiuDepartment of Physiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. liur@jlu.edu.cn.
Ekaterina TurlovaDepartment of Surgery, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. e.turlova@mail.utoronto.ca.
Andrew BarszczykDepartment of Physiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. andrew.barszczyk@utoronto.ca.
Xiao ZhongDepartment of Surgery, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. 16822832@qq.com.
Christopher L F SunFaculty of Applied Science & Engineering, University of Toronto, Toronto, M5S 1A4, Canada. christopher.sun@utoronto.ca.
Luiz R G BrittoInstituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil. britto@icb.usp.br.
Zhong-Ping FengDepartment of Physiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. zp.feng@utoronto.ca.
Hong-Shuo SunDepartment of Surgery, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, M5S 1A8, Canada. hss.sun@utoronto.ca.
University of Toronto · CACanada Research Chairs · CAUniversidade de São Paulo · BR

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundOur previous study found that suppression of TRPM7 reduced neuronal death in adult rat ischemic brain injury. It was reported that carvacrol blocked TRPM7 and attenuated brain injury in an adult rat MCAO model. The effects of carvacrol on neonatal stroke remain unknown. This study investigated the effects of carvacrol on neuronal injury and behavioral impairment after hypoxia-ischemia in neonatal mice and the potential signaling pathway underlying these effects.

resultsCarvacrol inhibited TRPM7 current in HEK293 cells over-expressing TRPM7 and TRPM7-like current in hippocampal neurons in a dose-dependent manner. Carvacrol (>200 μM) reduced OGD-induced neuronal injury in cortical neurons. 24 hours after HI, TRPM7 protein level in the ipsilateral hemisphere was significantly higher than in the contralateral hemisphere. Carvacrol (30 and 50 mg/kg) pre-treatment reduced brain infarct volume 24 hours after HI in a dose-dependent manner. Carvacrol pre-treatment also improved neurobehavioral outcomes. Furthermore, animals pre-treated with carvacrol had fewer TUNEL-positive cells in the brain compared to vehicle-treated animals 3 days after HI. Carvacrol pre-treatment also increased Bcl-2/Bax and p-Akt/t-Akt protein ratios and decreased cleaved caspase-3 protein expression 24 hours after HI.

conclusionsCarvacrol pre-treatment protects against neonatal hypoxic-ischemic brain injury by reducing brain infarct volume, promoting pro-survival signaling and inhibiting pro-apoptotic signaling, as well as improving behavioral outcomes. The neuroprotective effect may be mediated by the inhibition of TRPM7 channel function. Carvacrol is a potential drug development target for the treatment of neonatal stroke.

Indexed as

NeuroprotectionAnimalsAnimals, NewbornApoptosisbcl-2-Associated X ProteinBehavior, AnimalBrainBrain InfarctionCaspase 3CymenesGlucoseHEK293 CellsHippocampusHumansHypoxia-Ischemia, BrainIon Channel Gatingbcl-2-Associated X ProteincarvacrolCaspase 3CymenesGlucoseMonoterpenesNeuroprotective AgentsOxygenProto-Oncogene Proteins c-aktTRPM Cation Channels

Identifiers

PMID25761704
PMCPMC4337201
OpenAlexW2143782901

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.