Evidence map›Paper›PMID 31774629›Full record

ArticleCNS neuroscience & therapeutics2020

Aging alters Hv1-mediated microglial polarization and enhances neuroinflammation after peripheral surgery.

Zhi-Jing Zhang, Xin-Xun Zheng, Xin-Yun Zhang, Yi Zhang, Bao-Yi Huang, Tao Luo

Open access · goldAbstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

28 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
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  6. Hv1 channel in immune cells and pharmacology.Pharmacological research · 2025
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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

6 authors at 3 institutions in 1 country.

Zhi-Jing ZhangDepartment of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, China.
Xin-Xun ZhengDepartment of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, China.
Xin-Yun ZhangDepartment of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, China.
Yi ZhangDepartment of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, China.
Bao-Yi HuangDepartment of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, China.
Tao LuoDepartment of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, China.ORCID 0000-0002-5592-8899
Shantou University · CNPeking University Shenzhen Hospital · CNAnhui Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Perioperative neurocognitive disorders have been widely recognized as common adverse events after surgical intervention. Aging is one of the most important independent risk factors for worsened cognitive outcome, and this deterioration is linked to exacerbated microglia-mediated neuroinflammation in the aged brain. Under pathological stimulation, microglia are capable of polarizing toward proinflammatory M1 and anti-inflammatory M2 phenotypes. In the present study, we examined how aging affects microglial responses and neuroinflammation following peripheral surgery. Adult (2-3 months) and aged (18 months old) male C57/BL6 mice were subjected to tibial fracture or sham surgery. Aged mice exhibited higher level of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) in the hippocampus. The expression of synaptic protein synaptophysin (SYP) was also markedly reduced in the aged brain after the surgery. Both adult and aged mice showed significant increases in M1 microglial polarization (CD16/32). In contrast, tibial fracture surgery induced a decreased M2 microglial polarization (CD206, Ym1/2, Arg1) in aged brain but enhanced M2 microglial polarization in adult brain. Aged mice have upregulated voltage-gated proton channel (Hv1) and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit expression compared with adult mice. The percentage of CD16/32-positive M1 microglia colabeling with Hv1 was higher in aged mice after tibial fracture surgery. Thus, Hv1/NADPH oxidase upregulation in the aged brain may shift the dynamic equilibrium of microglial activation toward M1 polarization and exaggerate postoperative neuroinflammatory responses after peripheral surgical intervention.

Indexed as

AgingAnimalsCell PolarityFracture FixationImmunity, InnateInflammationInflammation MediatorsIon ChannelsMaleMiceMice, Inbred C57BLMicrogliaTibial FracturesHv1 proton channel, mouseInflammation MediatorsIon ChannelsagingHv1microglial polarizationneuroinflammation

Identifiers

PMID31774629
PMCPMC7053237
OpenAlexW2989578019

What OpenQuestion holds

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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.