Improved brain functional network in major depressive disorder with suicidal ideation after individual target-transcranial magnetic stimulation treatment: a graph-theory analysis

IntroductionMajor depressive disorder with suicidal ideation (MDD/SI+) is characterized by high prevalence, high recurrence rate, high disability rate and low response rate. There is an urgent need for clarifying the pathogenesis and developing novel treatment methods.MethodsSubjects were recruited...

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Main Authors: Yao Zhang, Nan Mu, Shun Qi, Chuanzhu Sun, Yang Rao, Xinyi Yang, Jianying Guo, Yunfeng Mu
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Psychiatry
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Online Access:https://www.frontiersin.org/articles/10.3389/fpsyt.2025.1486835/full
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author Yao Zhang
Nan Mu
Shun Qi
Chuanzhu Sun
Yang Rao
Xinyi Yang
Jianying Guo
Yunfeng Mu
author_facet Yao Zhang
Nan Mu
Shun Qi
Chuanzhu Sun
Yang Rao
Xinyi Yang
Jianying Guo
Yunfeng Mu
author_sort Yao Zhang
collection DOAJ
description IntroductionMajor depressive disorder with suicidal ideation (MDD/SI+) is characterized by high prevalence, high recurrence rate, high disability rate and low response rate. There is an urgent need for clarifying the pathogenesis and developing novel treatment methods.MethodsSubjects were recruited for the collection of Magnetic Resonance Imaging data and clinical scales. Individual target-transcranial magnetic stimulation (IT-TMS) using Stanford Neuromodulation Therapy over individualized left dorsolateral prefrontal cortex was performed to treat MDD/SI+ with the ethical approval (KY20212218-C-1). GRETNA software was used to analyze brain network characteristics according to graph theory.ResultsA total of 32 patients (aged 18-55) and 28 healthy controls (aged 20-51) had been recruited. Patients after IT-TMS treatment had significant reduction in suicidal ideation and depressive symptom. The functional network of all three groups conformed to small-world topology. There was a renormalization in topology structure after IT-TMS treatment. Decreased functional connectivity between right insula and left anterior cingulate gyrus correlated with improvement in Beck Scale for Suicide Ideation scores.DiscussionThe current study highlights that MDD/SI+ patients in this cohort showed abnormal brain network connections compared to healthy controls, and that IT-TMS may exert its treatment effects by reducing spontaneous hyper-connectivity in the salience network and insula.
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spelling doaj-art-844fca07036f4160b13e1d09dd7695e92025-01-22T07:11:52ZengFrontiers Media S.A.Frontiers in Psychiatry1664-06402025-01-011610.3389/fpsyt.2025.14868351486835Improved brain functional network in major depressive disorder with suicidal ideation after individual target-transcranial magnetic stimulation treatment: a graph-theory analysisYao Zhang0Nan Mu1Shun Qi2Chuanzhu Sun3Yang Rao4Xinyi Yang5Jianying Guo6Yunfeng Mu7Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, ChinaXijing Hospital, Air Force Medical University, Xi’an, Shaanxi, ChinaThe Key Laboratory of Biomedical Information Engineering of Ministry of Education, Institute of Health and Rehabilitation Science, School of Life Science and Technology, The Key Laboratory of Neuro-informatics & Rehabilitation Engineering of Ministry of Civil Affairs, Xi’an Jiaotong University, Xi’an, ChinaShaanxi Brain Modulation and Scientific Research Center, Xi’an, Shaanxi, ChinaShaanxi Brain Modulation and Scientific Research Center, Xi’an, Shaanxi, ChinaXijing Hospital, Air Force Medical University, Xi’an, Shaanxi, ChinaXijing Hospital, Air Force Medical University, Xi’an, Shaanxi, ChinaDepartment of Gynecological Oncology, Shaanxi Provincial Cancer Hospital, Xi’an, ChinaIntroductionMajor depressive disorder with suicidal ideation (MDD/SI+) is characterized by high prevalence, high recurrence rate, high disability rate and low response rate. There is an urgent need for clarifying the pathogenesis and developing novel treatment methods.MethodsSubjects were recruited for the collection of Magnetic Resonance Imaging data and clinical scales. Individual target-transcranial magnetic stimulation (IT-TMS) using Stanford Neuromodulation Therapy over individualized left dorsolateral prefrontal cortex was performed to treat MDD/SI+ with the ethical approval (KY20212218-C-1). GRETNA software was used to analyze brain network characteristics according to graph theory.ResultsA total of 32 patients (aged 18-55) and 28 healthy controls (aged 20-51) had been recruited. Patients after IT-TMS treatment had significant reduction in suicidal ideation and depressive symptom. The functional network of all three groups conformed to small-world topology. There was a renormalization in topology structure after IT-TMS treatment. Decreased functional connectivity between right insula and left anterior cingulate gyrus correlated with improvement in Beck Scale for Suicide Ideation scores.DiscussionThe current study highlights that MDD/SI+ patients in this cohort showed abnormal brain network connections compared to healthy controls, and that IT-TMS may exert its treatment effects by reducing spontaneous hyper-connectivity in the salience network and insula.https://www.frontiersin.org/articles/10.3389/fpsyt.2025.1486835/fulldepressionsuicidal ideationtranscranial magnetic stimulationsmall-worldgraph-theory
spellingShingle Yao Zhang
Nan Mu
Shun Qi
Chuanzhu Sun
Yang Rao
Xinyi Yang
Jianying Guo
Yunfeng Mu
Improved brain functional network in major depressive disorder with suicidal ideation after individual target-transcranial magnetic stimulation treatment: a graph-theory analysis
Frontiers in Psychiatry
depression
suicidal ideation
transcranial magnetic stimulation
small-world
graph-theory
title Improved brain functional network in major depressive disorder with suicidal ideation after individual target-transcranial magnetic stimulation treatment: a graph-theory analysis
title_full Improved brain functional network in major depressive disorder with suicidal ideation after individual target-transcranial magnetic stimulation treatment: a graph-theory analysis
title_fullStr Improved brain functional network in major depressive disorder with suicidal ideation after individual target-transcranial magnetic stimulation treatment: a graph-theory analysis
title_full_unstemmed Improved brain functional network in major depressive disorder with suicidal ideation after individual target-transcranial magnetic stimulation treatment: a graph-theory analysis
title_short Improved brain functional network in major depressive disorder with suicidal ideation after individual target-transcranial magnetic stimulation treatment: a graph-theory analysis
title_sort improved brain functional network in major depressive disorder with suicidal ideation after individual target transcranial magnetic stimulation treatment a graph theory analysis
topic depression
suicidal ideation
transcranial magnetic stimulation
small-world
graph-theory
url https://www.frontiersin.org/articles/10.3389/fpsyt.2025.1486835/full
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