Evidence map›Paper›PMID 26400403›Full record

ArticlePsychopharmacology2015

Differential effects of general anesthetics on anxiety-like behavior in formalin-induced pain: involvement of ERK activation in the anterior cingulate cortex.

Cong Luo, Yan-Ling Zhang, Wei Luo, Fiona H Zhou, Chang-Qi Li, Jun-Mei Xu, Ru-Ping Dai

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05008939 (Subanesthetic Sevoflurane for Treatment-Resistant Depression), which is not on this map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 20% 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.

NCT05008939 naunknown statusnot on this mapstarted 2021, after this paper: background citation

Subanesthetic Sevoflurane for Treatment-Resistant Depression: A Proof-of-Concept Trial

TypeinterventionalSponsorShanghai First Maternity and Infant HospitalRan2021 to 2022Enrolled15ConditionsDepressive Disorder, Treatment-Resistant, Depressive Disorder, MajorArmsSevoflurane, Placebo
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 26 citations in OpenAlex.

  1. Vagal nerve TRPV3 regulates sedative-mediated appeasement.Proceedings of the National Academy of Sciences of the United States of America · 2026
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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

7 authors at 3 institutions in 2 countries.

Cong LuoDepartment of Anesthesiology, The Second Xiangya Hospital of Central South University, Ren-Min Road 86, Changsha, Hunan, 410011, China.
Yan-Ling ZhangDepartment of Anesthesiology, The Second Xiangya Hospital of Central South University, Ren-Min Road 86, Changsha, Hunan, 410011, China.
Wei LuoDepartment of Anesthesiology, The Second Xiangya Hospital of Central South University, Ren-Min Road 86, Changsha, Hunan, 410011, China.
Fiona H ZhouSchool of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia.
Chang-Qi LiDepartment of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, China.
Jun-Mei XuDepartment of Anesthesiology, The Second Xiangya Hospital of Central South University, Ren-Min Road 86, Changsha, Hunan, 410011, China. 13975148864@139.com.
Ru-Ping DaiDepartment of Anesthesiology, The Second Xiangya Hospital of Central South University, Ren-Min Road 86, Changsha, Hunan, 410011, China. xyeyyrupingdai@gmail.com.
Central South University · CNSecond Xiangya Hospital of Central South University · CNUniversity of South Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationalePain-related anxiety and depression are well known to be comorbid with chronic pain and adversely affect patient quality of life. Recent studies have shown that anxiety-like behaviors also develop with acute surgical pain, but the effects of general anesthetics on acute pain-related anxiety are unknown.

objectiveThe present study aimed to compare the effects of different general anesthetics on anxiety-like behaviors that follow formalin-induced acute pain in a rat model.

methodsFormalin-induced acute inflammatory pain was established by intraplantar injection of 1% formalin without anesthesia or with anesthesia using the clinical anesthetics sevoflurane, propofol, or pentobarbital sodium. Anxiety-like behaviors were studied using the open-field test and elevated plus maze. Phosphorylated extracellular signal-regulated kinase (p-ERK) 1/2 expression in the anterior cingulate cortex (ACC) and spinal cord was examined using immunohistochemistry.

resultsAnxiety-like behaviors were observed at 24 and 72 h post-formalin injection. Concomitantly, p-ERK 1/2 expression was upregulated in the ACC at 1 and 24 h post-formalin injection. While all three general anesthetics effectively blocked nociceptive responses and activation of ERK in the rat ACC following formalin injection during anesthesia, only sevoflurane inhibited ERK activation in the spinal cord and ACC at 24 h post-injection.

conclusionsThis study suggests that sevoflurane, but not intravenous anesthetics, inhibits pain-related anxiety, along with ERK activation in the ACC, probably through inhibition of spinal nociceptive transmission. Intraoperative application of inhaled anesthetics may be a better choice to reduce postoperative anxiety.

Indexed as

Anesthetics, InhalationAnimalsAnxietyBehavior, AnimalExtracellular Signal-Regulated MAP KinasesFormaldehydeGyrus CinguliMaleMethyl EthersPainPain MeasurementPentobarbitalPropofolRatsRats, Sprague-DawleySevofluraneAnesthetics, InhalationExtracellular Signal-Regulated MAP KinasesFormaldehydeMethyl EthersPentobarbitalPropofolSevofluraneAnestheticsAnterior cingulate cortexAnxietyExtracellular signal-regulated kinasePropofolSevoflurane

Identifiers

PMID26400403
OpenAlexW1743728985

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.