Evidence map›Paper›PMID 36437988›Full record

ArticleFrontiers in aging neuroscience2022

SIRT1 activation attenuates microglia-mediated synaptic engulfment in postoperative cognitive dysfunction.

Yi Sun, Yuzhu Wang, Fan Ye, Victoria Cui, Dandan Lin, Hui Shi, Yan Zhang, Anshi Wu, Changwei Wei

Abstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2022. 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
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

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4 · The record

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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

9 authors.

Yi SunDepartment of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Yuzhu WangDepartment of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Fan YeDepartment of Anesthesiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China.
Victoria CuiDepartment of General Surgery, MedStar Georgetown University Hospital, Washington, DC, United States.
Dandan LinDepartment of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Hui ShiDepartment of Clinical Psychology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Yan ZhangState Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing, China.
Anshi WuDepartment of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Changwei WeiDepartment of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Postoperative cognitive dysfunction (POCD) is a debilitating neurological complication in surgical patients. Current research has focused mainly on microglial activation, but less is known about the resultant neuronal synaptic changes. Recent studies have suggested that Sirtuin-1 (SIRT1) plays a critical role in several different neurological disorders Materials and methods: Exploratory laparotomy was performed in mice aged 12-14 months under sevoflurane anesthesia to establish our animal POCD model. Transcriptional changes in the hippocampus after anesthesia and surgery were evaluated by RNA sequencing. SIRT1 expression was verified by Western Blot. Mice were treated with SIRT1 agonist SRT1720 or vehicle after surgery. Changes in microglia morphology, microglial phagocytosis, presence of dystrophic neurites, and dendritic spine density were evaluated. Cognitive performance was evaluated using the Y maze and Morris water maze (MWM). Results: Sirtuin-1 expression levels were downregulated in POCD. Exposure to anesthesia and surgery lead to alteration in microglia morphology, increased synaptic engulfment, dendritic spine loss, and cognitive deficits. These effects were alleviated by SRT1720 administration. Conclusion: This study suggests an important neuroprotective role for SIRT1 in POCD pathogenesis. Increasing SIRT1 function represents a promising therapeutic strategy for prevention and treatment of POCD.

Indexed as

microglial activationneuroinflammationpostoperative cognitive dysfunctionSIRT1synaptic engulfment

Identifiers

PMID36437988
PMCPMC9685341

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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.