Evidence map›Paper›PMID 25422633›Full record

ArticleNeural regeneration research2014

Long-term administration of scopolamine interferes with nerve cell proliferation, differentiation and migration in adult mouse hippocampal dentate gyrus, but it does not induce cell death.

Bing Chun Yan, Joon Ha Park, Bai Hui Chen, Jeong-Hwi Cho, In Hye Kim, Ji Hyeon Ahn, Jae-Chul Lee, In Koo Hwang, Jun Hwi Cho, Yun Lyul Lee and 2 more

Open access · goldAbstract read
In one paragraph

Article in Neural regeneration research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

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  6. Melatonin Rescue Oxidative Stress-Mediated Neuroinflammation/ Neurodegeneration and Memory Impairment in Scopolamine-Induced Amnesia Mice Model.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2019
    Article
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  9. Article
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  11. Article
  12. Article
  13. Article
  14. Article
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

12 authors at 4 institutions in 2 countries.

Bing Chun YanDepartment of Integrative Traditional & Western Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China.
Joon Ha ParkDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, South Korea.
Bai Hui ChenDepartment of Physiology, College of Medicine, Institute of Neurodegeneration and Neuroregeneration, Hallym University, Chuncheon, South Korea.
Jeong-Hwi ChoDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, South Korea.
In Hye KimDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, South Korea.
Ji Hyeon AhnDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, South Korea.
Jae-Chul LeeDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, South Korea.
In Koo HwangDepartment of Anatomy and Cell Biology, College of Veterinary Medicine, Seoul National University, Seoul, South Korea.
Jun Hwi ChoDepartment of Emergency Medicine, School of Medicine, Kangwon National University, Chuncheon, South Korea.
Yun Lyul LeeDepartment of Physiology, College of Medicine, Institute of Neurodegeneration and Neuroregeneration, Hallym University, Chuncheon, South Korea.
Il-Jun KangDepartment of Food Science and Nutrition, Hallym University, Chuncheon, South Korea.
Moo-Ho WonDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, South Korea.
Kangwon National University · KRHallym University · KRSeoul National University · KRYangzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Long-term administration of scopolamine, a muscarinic receptor antagonist, can inhibit the survival of newly generated cells, but its effect on the proliferation, differentiation and migration of nerve cells in the adult mouse hippocampal dentate gyrus remain poorly understood. In this study, we used immunohistochemistry and western blot methods to weekly detect the biological behaviors of nerve cells in the hippocampal dentate gyrus of adult mice that received intraperitoneal administration of scopolamine for 4 weeks. Expression of neuronal nuclear antigen (NeuN; a neuronal marker) and Fluoro-Jade B (a marker for the localization of neuronal degeneration) was also detected. After scopolamine treatment, mouse hippocampal neurons did not die, and Ki-67 (a marker for proliferating cells)-immunoreactive cells were reduced in number and reached the lowest level at 4 weeks. Doublecortin (DCX; a marker for newly generated neurons)-immunoreactive cells were gradually shortened in length and reduced in number with time. After scopolamine treatment for 4 weeks, nearly all of the 5-bromo-2'-deoxyuridine (BrdU)-labeled newly generated cells were located in the subgranular zone of the dentate gyrus, but they did not migrate into the granule cell layer. Few mature BrdU/NeuN double-labeled cells were seen in the subgranular zone of the dentate gyrus. These findings suggest that long-term administration of scopolamine interferes with the proliferation, differentiation and migration of nerve cells in the adult mouse hippocampal dentate gyrus, but it does not induce cell death.

Indexed as

cell proliferationdentate gyrusgranule cell layernerve regenerationneural regenerationneuroblast differentiationneuroblast migrationneurogenesisscopolamine

Identifiers

PMID25422633
PMCPMC4238160
OpenAlexW2059463415

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.