Evidence map›Paper›PMID 33980987›Full record

ArticleCommunications biology2021

The anesthetic sevoflurane induces tau trafficking from neurons to microglia.

Yuanlin Dong, Feng Liang, Lining Huang, Fang Fang, Guang Yang, Rudolph E Tanzi, Yiying Zhang, Qimin Quan, Zhongcong Xie

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

33 citing papers in PubMed, 56 citations in OpenAlex.

  1. Review
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  7. Neurotrauma reports · 2025
    Article
  8. Article
  9. Review
  10. Nanotherapeutics for Alleviating Anesthesia-Associated Complications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    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

9 authors at 3 institutions in 2 countries.

Yuanlin Dong *Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.ORCID 0000-0002-4760-0519
Feng Liang *Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
Lining HuangGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
Fang FangGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
Guang YangDepartment of Anesthesiology, Columbia University Medical Center, New York, NY, USA.ORCID 0000-0002-5739-9126
Rudolph E TanziGenetics and Aging Research Unit, MassGeneral Institute for Neurodegenerative Disease, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.ORCID 0000-0002-7032-1454
Yiying ZhangGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
Qimin QuanRowland Institute at Harvard University, Cambridge, MA, USA.
Zhongcong XieGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA. zxie@mgh.harvard.edu.ORCID 0000-0002-0720-1759
Harvard University · USColumbia University Irving Medical Center · USHebei Medical University · CN

Funding

Postoperative Delirium and Alzheimer's Disease Related DementiasR01AG062509 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI XIE, ZHONGCONG · 2019 to 2023
$3.7M
General Anesthesia and Alzheimer's Disease NeuropathogenesisRF1AG070761 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI XIE, ZHONGCONG · 2020 to 2020
$1.9M
Tau/P-Tau as Biomarkers of Anesthesia- and Surgery-Induced Cognitive Impairment in a Murine ModelR01HD086977 · NICHD · MASSACHUSETTS GENERAL HOSPITAL · PI XIE, ZHONGCONG · 2016 to 2020
$1.8M
NIA NIH HHS R01 AG062509NIA NIH HHS RF1 AG070761NICHD NIH HHS R01 HD086977
6 · The paper itself

Abstract

Accumulation and spread of tau in Alzheimer's disease and other tauopathies occur in a prion-like manner. However, the mechanisms and downstream consequences of tau trafficking remain largely unknown. We hypothesized that tau traffics from neurons to microglia via extracellular vesicles (EVs), leading to IL-6 generation and cognitive impairment. We assessed mice and neurons treated with anesthetics sevoflurane and desflurane, and applied nanobeam-sensor technology, an ultrasensitive method, to measure tau/p-tau amounts. Sevoflurane, but not desflurane, increased tau or p-tau amounts in blood, neuron culture medium, or EVs. Sevoflurane increased p-tau amounts in brain interstitial fluid. Microglia from tau knockout mice took up tau and p-tau when treated with sevoflurane-conditioned neuron culture medium, leading to IL-6 generation. Tau phosphorylation inhibitor lithium and EVs generation inhibitor GW4869 attenuated tau trafficking. GW4869 mitigated sevoflurane-induced cognitive impairment in mice. Thus, tau trafficking could occur from neurons to microglia to generate IL-6, leading to cognitive impairment.

Indexed as

Alzheimer DiseaseAnesthetics, InhalationAnimalsBrainCognitive DysfunctionExtracellular VesiclesFemaleHippocampusInterleukin-6MaleMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicMicrogliaNeuronsAnesthetics, InhalationInterleukin-6Sevofluranetau Proteins

Identifiers

PMID33980987
PMCPMC8115254
OpenAlexW3163017087

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.