Evidence map›Paper›PMID 28848542›Full record

ArticleFrontiers in immunology2017

Anesthesia and Surgery Impair Blood-Brain Barrier and Cognitive Function in Mice.

Siming Yang, Changping Gu, Emiri T Mandeville, Yuanlin Dong, Elga Esposito, Yiying Zhang, Guang Yang, Yuan Shen, Xiaobing Fu, Eng H Lo and 1 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 135 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
135citing papers in PubMed, 2 pooled it
8.4field-weighted citation impact, top 2% 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

135 citing papers in PubMed, 2 syntheses or guidelines pooled it, 224 citations in OpenAlex.

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  11. Animal models of delirium: a narrative review.Translational psychiatry · 2026
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75 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

11 authors at 5 institutions in 2 countries.

Siming YangKey Laboratory of Wound Repair and Regeneration of PLA, College of Life Sciences, General Hospital of PLA, Medical College of PLA, Beijing, China.
Changping GuGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States.
Emiri T MandevilleNeuroprotection Research, Radiology and Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States.
Yuanlin DongGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States.
Elga EspositoNeuroprotection Research, Radiology and Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States.
Yiying ZhangGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States.
Guang YangDepartment of Anesthesiology, Perioperative Care and Pain Medicine, New York University School of Medicine, New York, NY, United States.
Yuan ShenDepartment of Psychiatry, Tenth People's Hospital of Tongji University, Shanghai, China.
Xiaobing FuKey Laboratory of Wound Repair and Regeneration of PLA, College of Life Sciences, General Hospital of PLA, Medical College of PLA, Beijing, China.
Eng H LoNeuroprotection Research, Radiology and Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States.
Zhongcong XieGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States.
Massachusetts General Hospital · USHarvard University · USChinese PLA General Hospital · CNNew York University · USTongji University · CN

Funding

Pathogenesis of Postoperative Cognitive DysfunctionR01AG041274 · NIA · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI Zhongcong Xie, Guang Yang · 2012 to 2026
$6.7M
General Anesthesia and Alzheimer's Disease NeuropathogenesisR01GM088801 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI XIE, ZHONGCONG · 2009 to 2017
$3.1M
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
Long-lasting effects of anesthetics on synapse development and plasticityR01GM107469 · NIGMS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI YANG, GUANG · 2014 to 2018
$1.6M
NIA NIH HHS R01 AG041274NICHD NIH HHS R01 HD086977NIGMS NIH HHS R01 GM088801NIGMS NIH HHS R01 GM107469
6 · The paper itself

Abstract

Blood-brain barrier (BBB) dysfunction, e.g., increase in BBB permeability, has been reported to contribute to cognitive impairment. However, the effects of anesthesia and surgery on BBB permeability, the underlying mechanisms, and associated cognitive function remain largely to be determined. Here, we assessed the effects of surgery (laparotomy) under 1.4% isoflurane anesthesia (anesthesia/surgery) for 2 h on BBB permeability, levels of junction proteins and cognitive function in both 9- and 18-month-old wild-type mice and 9-month-old interleukin (IL)-6 knockout mice. BBB permeability was determined by dextran tracer (immunohistochemistry imaging and spectrophotometric quantification), and protein levels were measured by Western blot and cognitive function was assessed by using both Morris water maze and Barnes maze. We found that the anesthesia/surgery increased mouse BBB permeability to 10-kDa dextran, but not to 70-kDa dextran, in an IL-6-dependent and age-associated manner. In addition, the anesthesia/surgery induced an age-associated increase in blood IL-6 level. Cognitive impairment was detected in 18-month-old, but not 9-month-old, mice after the anesthesia/surgery. Finally, the anesthesia/surgery decreased the levels of β-catenin and tight junction protein claudin, occludin and ZO-1, but not adherent junction protein VE-cadherin, E-cadherin, and p120-catenin. These data demonstrate that we have established a system to study the effects of perioperative factors, including anesthesia and surgery, on BBB and cognitive function. The results suggest that the anesthesia/surgery might induce an age-associated BBB dysfunction and cognitive impairment in mice. These findings would promote mechanistic studies of postoperative cognitive impairment, including postoperative delirium.

Indexed as

ageanesthesia/surgeryblood–brain barriercognitioninterleukin-6

Identifiers

PMID28848542
PMCPMC5552714
OpenAlexW2743659633

What OpenQuestion holds

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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.