Evidence map›Paper›PMID 33324197›Full record

ArticleFrontiers in aging neuroscience2020

Amantadine Alleviates Postoperative Cognitive Dysfunction Possibly by Preserving Neurotrophic Factor Expression and Dendritic Arborization in the Hippocampus of Old Rodents.

Jing Zhong, Jun Li, Cheng Ni, Zhiyi Zuo

Open access · goldAbstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

16 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Review
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  5. BDNF/TrkB activators in Parkinson's disease: A new therapeutic strategy.Journal of cellular and molecular medicine · 2024
    Review
  6. Review
  7. Article
  8. Neurotrophic Factors and Dendritic Spines.Advances in neurobiology · 2023
    Article
  9. Article
  10. Improved survival in intensive care unit in severe COVID-19 associated with amantadine use - retrospective study.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2022
    Article
  11. Article
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  14. 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

4 authors at 3 institutions in 2 countries.

Jing ZhongDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, United States.
Jun LiDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, United States.
Cheng NiDepartment of Anesthesia, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Zhiyi ZuoDepartment of Anesthesiology, University of Virginia, Charlottesville, VA, United States.
University of Virginia · USChinese Academy of Medical Sciences & Peking Union Medical College · CNThe First Affiliated Hospital, Sun Yat-sen University · CN

Funding

Role of carboxyl-terminal modulator protein in autophagy and senescence of human induced pluripotent stem cellsRF1AG061047 · NIA · UNIVERSITY OF VIRGINIA · PI WENKER, IAN CHRISTOPHER · 2019 to 2023
$2.4M
Obesity-induced cerebral vascular remodeling and poor brain ischemic toleranceR01NS099118 · NINDS · UNIVERSITY OF VIRGINIA · PI ZUO, ZHIYI · 2018 to 2022
$1.7M
Glial cell line-derived neurotropic factor and postoperative cognitive impairment in young ratsR01HD089999 · NICHD · UNIVERSITY OF VIRGINIA · PI ZUO, ZHIYI · 2017 to 2021
$1.7M
Volatile anesthetic effects on aging brainR01GM098308 · NIGMS · UNIVERSITY OF VIRGINIA · PI ZUO, ZHIYI · 2012 to 2015
$1.2M
Postoperative cognitive dysfunction and enriched environmentR21AG056995 · NIA · UNIVERSITY OF VIRGINIA · PI ZUO, ZHIYI · 2017 to 2018
$443k
NIA NIH HHS R21 AG056995NIA NIH HHS RF1 AG061047NICHD NIH HHS R01 HD089999NIGMS NIH HHS R01 GM098308NINDS NIH HHS R01 NS099118
6 · The paper itself

Abstract

objectivesAmantadine has been shown to attenuate postoperative learning and memory dysfunction in young adult rats. However, postoperative cognitive dysfunction often occurs in elderly patients. We aimed to determine whether amantadine attenuated postoperative learning and memory dysfunction and whether these effects were associated with improved dendritic arborization in old rodents.

methodsEighteen-month old male C57BL/6J mice or Fischer 344 rats were subjected to right carotid artery exposure (surgery) under isoflurane anesthesia. This age represents an early old stage in rodents. Carotid artery exposure was used to simulate commonly performed carotid endarterectomy in elderly patients. Amantadine was injected intraperitoneally at 25 μg/g once a day for 3 days with the first dose at 15 min before surgery. The animals were tested by Barnes maze and fear conditioning starting one week after the surgery. Hippocampus was harvested for Western blotting and Golgi staining.

resultsSurgery and anesthesia impaired the learning and memory in old mice and rats. Surgery reduced the expression of brain-derived neurotrophic factor (BDNF) and glial cell line-derived neurotrophic factor (GDNF), dendritic arborization and spine density in the hippocampus of old rats. These effects were attenuated by amantadine. The effects of amantadine were blocked by intracerebroventricular injection of anti-BDNF antibody or anti-GDNF antibody.

conclusionSurgery and anesthesia impaired learning, memory and dendritic arborization in old rodents that are age relevant to postoperative cognitive dysfunction. These effects may be attenuated by amantadine via preserving the expression of neurotrophic factors.

Indexed as

amantadinedendritic arborizationneurotrophic factorsold rodentspostoperative cognitive dysfunction

Identifiers

PMID33324197
PMCPMC7726433
OpenAlexW3110254948

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.