Evidence map›Paper›PMID 34778863›Full record

ArticleJournal of affective disorders reports2021

Transcutaneous Cervical Vagal Nerve Stimulation in Patients with Posttraumatic Stress Disorder (PTSD): A Pilot Study of Effects on PTSD Symptoms and Interleukin-6 Response to Stress.

J Douglas Bremner, Matthew T Wittbrodt, Nil Z Gurel, MdMobashir H Shandhi, Asim H Gazi, Yunshen Jiao, Oleksiy M Levantsevych, Minxuan Huang, Joy Beckwith, Isaias Herring and 16 more

Open access · goldAbstract read
In one paragraph

Article in Journal of affective disorders reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed, 40 citations in OpenAlex.

  1. Trial
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  7. RetrospectiveFrontiers in neuroscience · 2026
    Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Vagus nerve stimulation (VNS): recent advances and future directions.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2024
    Review
  17. Article
  18. Review
  19. The gut-brain axis and cognitive control: A role for the vagus nerve.Seminars in cell & developmental biology · 2024
    Review
  20. Noninvasive Vagal Nerve Stimulation for Opioid Use Disorder.Annals of depression and anxiety · 2023
    Article
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

26 authors at 4 institutions in 1 country.

J Douglas BremnerDepartment of Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia.
Matthew T WittbrodtDepartment of Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia.
Nil Z GurelSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia.
MdMobashir H ShandhiSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia.
Asim H GaziSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia.
Yunshen JiaoDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Oleksiy M LevantsevychDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Minxuan HuangDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Joy BeckwithDepartment of Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia.
Isaias HerringDepartment of Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia.
Nancy MurrahDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Emily G DriggersDepartment of Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia.
Yi-An KoDepartment of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia.
MhmtJamil L AlkhalafDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Majd SoudanDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Lucy ShallenbergerDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Allison N HankusDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Jonathon A NyeDepartment of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.
Jeanie ParkAtlanta VA Medical Center, Decatur, Georgia.
Anna WoodburyAtlanta VA Medical Center, Decatur, Georgia.
Puja K MehtaDepartment of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia.
Mark H RapaportHuntsman Mental Health Institute, Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, Utah.
Viola VaccarinoDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Amit J ShahAtlanta VA Medical Center, Decatur, Georgia.
Bradley D PearceDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Omer T InanSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia.
Emory University · USGeorgia Institute of Technology · USAtlanta VA Medical Center · USHuntsman Cancer Institute · US

Funding

Dopamine function, inflammation and connectivity in PTSDR01MH120262 · NIMH · EMORY UNIVERSITY · PI BREMNER, JAMES DOUGLAS · 2020 to 2023
$2.9M
Biological Correlates of Traumatic StressK24MH076955 · NIMH · EMORY UNIVERSITY · PI BREMNER, JAMES DOUGLAS · 2006 to 2013
$946k
Sympatho-inhibition with Mindfulness in Chronic Kidney DiseaseR61AT010457 · NCCIH · EMORY UNIVERSITY · PI PARK, JEANIE · 2019 to 2020
$946k
Non-Invasive Vagal Nerve Stimulation in Patients with Opioid Use Disorders UG3DA048502 · NIDA · EMORY UNIVERSITY · PI BREMNER, JAMES DOUGLAS, INAN, OMER TOLGA · 2020 to 2021
$844k
Shared Instrumentation for Research PET Brain DeviceS10RR016917 · NCRR · EMORY UNIVERSITY · PI BREMNER, JAMES DOUGLAS · 2002 to 2002
$500k
Non-Invasive Vagal Nerve Stimulation in Veterans with Mild Traumatic Brain Injury (mTBI)I01RX003418 · VA · VETERANS HEALTH ADMINISTRATION · PI James Douglas Bremner · 2021 to 2026
–
CSRD VA I01 CX001065CSRD VA I01 CX002331NCCIH NIH HHS R61 AT010457NCRR NIH HHS S10 RR016917NIDA NIH HHS UG3 DA048502NIMH NIH HHS K24 MH076955NIMH NIH HHS R01 MH120262RRD VA I01 RX003418RRD VA IK2 RX003227
6 · The paper itself

Abstract

backgroundPosttraumatic stress disorder (PTSD) is a highly disabling condition associated with alterations in multiple neurobiological systems, including increases in inflammatory and sympathetic function, responsible for maintenance of symptoms. Treatment options including medications and psychotherapies have limitations. We previously showed that transcutaneous Vagus Nerve Stimulation (tcVNS) blocks inflammatory (interleukin (IL)-6) responses to stress in PTSD. The purpose of this study was to assess the effects of tcVNS on PTSD symptoms and inflammatory responses to stress.

methodsTwenty patients with PTSD were randomized to double blind active tcVNS (N=9) or sham (N=11) stimulation in conjunction with exposure to personalized traumatic scripts immediately followed by active or sham tcVNS and measurement of IL-6 and other biomarkers of inflammation. Patients then self administered active or sham tcVNS twice daily for three months. PTSD symptoms were measured with the PTSD Checklist (PCL) and the Clinician Administered PTSD Scale (CAPS), clinical improvement with the Clinical Global Index (CGI) and anxiety with the Hamilton Anxiety Scale (Ham-A) at baseline and one-month intervals followed by a repeat of measurement of biomarkers with traumatic scripts. After three months patients self treated with twice daily open label active tcVNS for another three months followed by assessment with the CGI.

resultsTraumatic scripts increased IL-6 in PTSD patients, an effect that was blocked by tcVNS (p<.05). Active tcVNS treatment for three months resulted in a 31% greater reduction in PTSD symptoms compared to sham treatment as measured by the PCL (p=0.013) as well as hyperarousal symptoms and somatic anxiety measured with the Ham-A p<0.05). IL-6 increased from baseline in sham but not tcVNS. Open label tcVNS resulted in improvements measured with the CGI compared to the sham treatment period p<0.05).

conclusionsThese preliminary results suggest that tcVNS reduces inflammatory responses to stress, which may in part underlie beneficial effects on PTSD symptoms.

Identifiers

PMID34778863
PMCPMC8580056
OpenAlexW3177578185

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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.