Evidence map›Paper›PMID 34774071›Full record

ArticleJournal of neuroinflammation2021

Metabolic reprogramming mediates hippocampal microglial M1 polarization in response to surgical trauma causing perioperative neurocognitive disorders.

Gang Luo, Xiaofeng Wang, Yongchen Cui, Yue Cao, Zhe Zhao, Junfeng Zhang

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 2 pooled it
5.0field-weighted citation impact, top 4% 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

63 citing papers in PubMed, 2 syntheses or guidelines pooled it, 96 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. A Neutrophil Membrane-Encapsulated Pd/hCeOAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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3 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Gang Luo *Department of Anesthesiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, 600 Yishan Road, Shanghai, 200233, China.
Xiaofeng Wang *Department of Anesthesiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, 600 Yishan Road, Shanghai, 200233, China.
Yongchen Cui *Department of Anesthesiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, 600 Yishan Road, Shanghai, 200233, China.
Yue CaoDepartment of Anesthesiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, 600 Yishan Road, Shanghai, 200233, China.
Zhe ZhaoDepartment of Geriatrics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, 600 Yishan Road, Shanghai, 200233, China. sevofurane@163.com.
Junfeng ZhangDepartment of Anesthesiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, 600 Yishan Road, Shanghai, 200233, China. zhangjunfeng@sjtu.edu.cn.ORCID http://orcid.org/0000-0003-0150-6989
Shanghai Sixth People's Hospital · CN

Funding

National Natural Science Foundation of China 81571035School of Medicine, Shanghai Jiao Tong University YG2015MS15
6 · The paper itself

Abstract

backgroundMicroglial polarization toward pro-inflammatory M1 phenotype are major contributors to the development of perioperative neurocognitive disorders (PNDs). Metabolic reprogramming plays an important role in regulating microglial polarization. We therefore hypothesized that surgical trauma can activate microglial M1 polarization by metabolic reprogramming to induce hippocampal neuroinflammation and subsequent postoperative cognitive impairment.

methodsWe used aged mice to establish a model of PNDs, and investigated whether surgical trauma induced metabolic reprograming in hippocampus using PET/CT and GC/TOF-MS based metabolomic analysis. We then determined the effect of the glycolytic inhibitor 2-deoxy-D-glucose (2-DG) on hippocampal microglial M1 polarization, neuroinflammation, and cognitive function at 3 d after surgery.

resultsWe found that surgery group had less context-related freezing time than either control or anesthesia group (P < 0.05) without significant difference in tone-related freezing time (P > 0.05). The level of Iba-1 fluorescence intensity in hippocampus were significantly increased in surgery group than that in control group (P < 0.05) accompanied by activated morphological changes of microglia and increased expression of iNOS/CD86 (M1 marker) in enriched microglia from hippocampus (P < 0.05). PET/CT and metabolomics analysis indicated that surgical trauma provoked the metabolic reprogramming from oxidative phosphorylation to glycolysis in hippocampus. Inhibition of glycolysis by 2-DG significantly alleviated the surgical trauma induced increase of M1 (CD86

conclusionsMetabolic reprogramming is crucial for regulating hippocampal microglial M1 polarization and neuroinflammation in PNDs. Manipulating microglial metabolism might provide a valuable therapeutic strategy for treating PNDs.

Indexed as

Cell PolarityMicrogliaAgingAnesthesiaAnimalsBehavior, AnimalCognitive DysfunctionGlycolysisHippocampusMaleMemory DisordersMetabolomicsMiceMice, Inbred C57BLNeuroinflammatory DiseasesPostoperative ComplicationsMetabolic reprogrammingMicroglial polarizationNeuroinflammationPerioperative neurocognitive disorders (PNDs)

Identifiers

PMID34774071
PMCPMC8590219
OpenAlexW3214557617

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.