Evidence map›Paper›PMID 25775423›Full record

ArticleMarine drugs2015

Acetylated chitosan oligosaccharides act as antagonists against glutamate-induced PC12 cell death via Bcl-2/Bax signal pathway.

Cui Hao, Lixia Gao, Yiran Zhang, Wei Wang, Guangli Yu, Huashi Guan, Lijuan Zhang, Chunxia Li

Open access · goldAbstract read
In one paragraph

Article in Marine drugs, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
8.6field-weighted citation impact, top 3% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 51 citations in OpenAlex.

  1. The cellular model for Alzheimer's disease research: PC12 cells.Frontiers in molecular neuroscience · 2022
    Pooled it
  2. Pooled it
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  12. Crosstalk between chitosan and cell signaling pathways.Cellular and molecular life sciences : CMLS · 2019
    Review
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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 1 institution in 1 country.

Cui HaoShandong Provincial Key Laboratory of Glycoscience and Glycoengineering, and Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China. haocui2010@hotmail.com.
Lixia GaoShandong Provincial Key Laboratory of Glycoscience and Glycoengineering, and Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China. xialigao1214@163.com.
Yiran ZhangShandong Provincial Key Laboratory of Glycoscience and Glycoengineering, and Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China. zhangyiran_ouc@126.com.
Wei WangShandong Provincial Key Laboratory of Glycoscience and Glycoengineering, and Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China. wwwakin@ouc.edu.cn.
Guangli YuShandong Provincial Key Laboratory of Glycoscience and Glycoengineering, and Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China. glyu@ouc.edu.cn.
Huashi GuanShandong Provincial Key Laboratory of Glycoscience and Glycoengineering, and Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China. hsguan@ouc.edu.cn.
Lijuan ZhangShandong Provincial Key Laboratory of Glycoscience and Glycoengineering, and Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China. lijuanzhang@ouc.edu.cn.
Chunxia LiShandong Provincial Key Laboratory of Glycoscience and Glycoengineering, and Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China. lchunxia@ouc.edu.cn.
Ocean University of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chitosan oligosaccharides (COSs), depolymerized products of chitosan composed of β-(1→4) D-glucosamine units, have broad range of biological activities such as antitumour, antifungal, and antioxidant activities. In this study, peracetylated chitosan oligosaccharides (PACOs) and N-acetylated chitosan oligosaccharides (NACOs) were prepared from the COSs by chemcal modification. The structures of these monomers were identified using NMR and ESI-MS spectra. Their antagonist effects against glutamate-induced PC12 cell death were investigated. The results showed that pretreatment of PC12 cells with the PACOs markedly inhibited glutamate-induced cell death in a concentration-dependent manner. The PACOs were better glutamate antagonists compared to the COSs and the NACOs, suggesting the peracetylation is essential for the neuroprotective effects of chitosan oligosaccharides. In addition, the PACOs pretreatment significantly reduced lactate dehydrogenase release and reactive oxygen species production. It also attenuated the loss of mitochondrial membrane potential. Further studies indicated that the PACOs inhibited glutamate-induced cell death by preventing apoptosis through depressing the elevation of Bax/Bcl-2 ratio and caspase-3 activation. These results suggest that PACOs might be promising antagonists against glutamate-induced neural cell death.

Indexed as

AcetylationAnimalsApoptosisbcl-2-Associated X ProteinCaspase 3Cell DeathChitosanGlutamic AcidMembrane Potential, MitochondrialNeuroprotective AgentsOligosaccharidesPC12 CellsProto-Oncogene Proteins c-bcl-2RatsReactive Oxygen SpeciesSignal Transductionbcl-2-Associated X ProteinCaspase 3ChitosanGlutamic AcidNeuroprotective AgentsOligosaccharidesProto-Oncogene Proteins c-bcl-2Reactive Oxygen Species

Identifiers

PMID25775423
PMCPMC4377983
OpenAlexW1964554985

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.