Evidence map›Paper›PMID 33414448›Full record

ArticleCell death & disease2021

Jingchuan Wu, Hui Li, Junchi He, Xiaocui Tian, Shuilian Luo, Jiankang Li, Wei Li, Jianjun Zhong, Hongrong Zhang, Zhijian Huang and 2 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. 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
2.7field-weighted citation impact, top 8% 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, 33 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 7 institutions in 2 countries.

Jingchuan WuDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.ORCID http://orcid.org/0000-0002-1213-4888
Hui LiDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Junchi HeDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Xiaocui TianCollege of Pharmacy, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, Yuzhong, 400016, China.
Shuilian LuoDepartment of Ultrasound, Zhongnan Hospital of WuHan University, Wuhan, 430071, China.
Jiankang LiDept of Computer Science, City University of Hong Kong, 83 Tat Chee Ave, Kowloon, Hong Kong, China.
Wei LiBGI Education Center, University of Chinese Academy of Sciences, Shenzhen, 518083, China.
Jianjun ZhongDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Hongrong ZhangDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Zhijian HuangDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Xiaochuan SunDepartment of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. sunxch1445@qq.com.
Tao JiangDepartment of Neurosurgery, Beijing TianTan Hospital, Capital Medical University, Beijing, 100050, China. zacharytaojiang@163.com.ORCID http://orcid.org/0000-0002-8529-4487
The Affiliated Yongchuan Hospital of Chongqing Medical University · CNCapital Medical University · CNChongqing Medical University · CNCity University of Hong Kong · HKUniversity of Chinese Academy of Sciences · CNWuhan University · CNYangtze Optical Electronic (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The level of microRNA-9-5p (miRNA-9-5p) in brain tissues is significantly changed in the chronic phase after traumatic brain injury (TBI). However, the effect of miRNA-9-5p on brain function after TBI has not been elucidated. In this study, we used a controlled cortical impact (CCI) model to induce TBI in Sprague-Dawley rats. Brain microvascular endothelial cells (BMECs), astrocytes, and neurons were extracted from immature Sprague-Dawley rats and cocultured to reconstruct the neurovascular unit (NVU) in vitro. The results showed that downregulation of miRNA-9-5p in the chronic phase contributed to neurological function recovery by promoting astrocyte proliferation and increasing the release of astrocyte-derived neurotrophic factors around injured brain tissues after TBI. A dual-luciferase reporter assay validated that miRNA-9-5p was a post-transcriptional modulator of thrombospondin 2 (Thbs-2), and downregulation of miRNA-9-5p promoted Thbs-2 expression in astrocytes. Furthermore, we verified that Thbs-2 can promote Notch pathway activation by directly binding to Jagged and Notch. Through in vitro experiments, we found that the expression of synaptic proteins and the number of synaptic bodies were increased in neurons in the NVU, which was constructed using astrocytes pretreated with miRNA-9-5p inhibitor. Moreover, we also found that downregulation of miRNA-9-5p promoted Thbs-2 expression in astrocytes, which activated the Notch/cylindromatosis/transforming growth factor-β-activated kinase 1 pathway in neurons and promoted the expression of synaptic proteins, including post-synaptic density protein 95 and synaptotagmin. Based on these results, miRNA-9-5p may be a new promising prognostic marker and treatment target for TBI.

Indexed as

AnimalsBrain Injuries, TraumaticDown-RegulationMicroRNAsRatsRats, Sprague-DawleySynapsesMicroRNAsMIRN9 microRNA, rat

Identifiers

PMID33414448
PMCPMC7790831
OpenAlexW4230383627

What OpenQuestion holds

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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.