Evidence map›Paper›PMID 27841332›Full record

ArticleScientific reports2016

Tetramethylpyrazine nitrone, a multifunctional neuroprotective agent for ischemic stroke therapy.

Zaijun Zhang, Gaoxiao Zhang, Yewei Sun, Samuel S W Szeto, Henry C H Law, Quan Quan, Guohui Li, Pei Yu, Eiketsu Sho, Michael K W Siu and 3 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. A systematic review and in silico analysis of studies investigating the ischemic penumbra proteome in animal models of experimental stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Pooled it
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  14. Homo-Tris-Nitrones Derived from α-Phenyl-International journal of molecular sciences · 2020
    Article
  15. Review
  16. Vimentin as a target for the treatment of COVID-19.BMJ open respiratory research · 2020
    Article
  17. Production of tetra-methylpyrazine using engineeredMetabolic engineering communications · 2020
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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

13 authors at 6 institutions in 4 countries.

Zaijun ZhangInstitute of New Drug Research and Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, Jinan University College of Pharmacy, Guangzhou, 510632, China.
Gaoxiao ZhangInstitute of New Drug Research and Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, Jinan University College of Pharmacy, Guangzhou, 510632, China.
Yewei SunInstitute of New Drug Research and Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, Jinan University College of Pharmacy, Guangzhou, 510632, China.
Samuel S W SzetoDepartment of Chemistry, the University of Hong Kong, Hong Kong, China.
Henry C H LawDepartment of Chemistry, the University of Hong Kong, Hong Kong, China.
Quan QuanDepartment of Chemistry, the University of Hong Kong, Hong Kong, China.
Guohui LiDepartment of Chemistry, the University of Hong Kong, Hong Kong, China.
Pei YuInstitute of New Drug Research and Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, Jinan University College of Pharmacy, Guangzhou, 510632, China.
Eiketsu ShoKunming Biomed International and National Engineering Research Center of Biomedicine and Animal Science, Kunming, 650500, China.
Michael K W SiuDepartment of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario, Canada.
Simon M Y LeeState Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
Ivan K ChuDepartment of Chemistry, the University of Hong Kong, Hong Kong, China.
Yuqiang WangInstitute of New Drug Research and Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, Jinan University College of Pharmacy, Guangzhou, 510632, China.
Jinan University · CNUniversity of Hong Kong · HKChinese University of Hong Kong · CNKunming Medical University · CNUniversity of Macau · MOUniversity of Windsor · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

TBN, a novel tetramethylpyrazine derivative armed with a powerful free radical-scavenging nitrone moiety, has been reported to reduce cerebral infarction in rats through multi-functional mechanisms of action. Here we study the therapeutic effects of TBN on non-human primate model of stroke. Thirty male Cynomolgus macaques were subjected to stroke with 4 hours ischemia and then reperfusion. TBN were injected intravenously at 3 or 6 hours after the onset of ischemia. Cerebral infarction was examined by magnetic resonance imaging at 1 and 4 weeks post ischemia. Neurological severity scores were evaluated during 4 weeks observation. At the end of experiment, protein markers associated with the stroke injury and TBN treatment were screened by quantitative proteomics. We found that TBN readily penetrated the blood brain barrier and reached effective therapeutic concentration after intravenous administration. It significantly reduced brain infarction and modestly preserved the neurological function of stroke-affected arm. TBN suppressed over-expression of neuroinflammatory marker vimentin and decreased the numbers of GFAP-positive cells, while reversed down-regulation of myelination-associated protein 2', 3'-cyclic-nucleotide 3'-phosphodiesterase and increased the numbers of NeuN-positive cells in the ipsilateral peri-infarct area. TBN may serve as a promising new clinical candidate for the treatment of ischemic stroke.

Indexed as

Blood-Brain BarrierBrain InfarctionStrokeAnimalsBiomarkersDisease Models, AnimalMacaca fascicularisMaleNerve Tissue ProteinsNeuroprotective AgentsPyrazinesSchiff BasesBiomarkersNerve Tissue ProteinsNeuroprotective AgentsPyrazinesSchiff Bases

Identifiers

PMID27841332
PMCPMC5107909
OpenAlexW2555310124

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.