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Frontostriatal Connectivity Changes in Major Depressive Disorder After Repetitive Transcranial Magnetic Stimulation: A Randomized Sham-Controlled Study.

Authors
 Jee In Kang  ;  Hyeongrae Lee  ;  Kyungun Jhung  ;  Kyung Ran Kim  ;  Suk Kyoon An  ;  Kang-Jun Yoon  ;  Sun I. Kim  ;  Kee Namkoong  ;  Eun Lee 
Citation
 Journal of Clinical Psychiatry, Vol.77(9) : 1137-1143, 2016 
Journal Title
 Journal of Clinical Psychiatry 
ISSN
 0160-6689 
Issue Date
2016
MeSH
Adult ; Aged ; Caudate Nucleus/physiopathology* ; Connectome/methods* ; Depressive Disorder, Major/physiopathology* ; Depressive Disorder, Major/therapy* ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Outcome Assessment (Health Care)* ; Prefrontal Cortex/physiopathology* ; Transcranial Magnetic Stimulation/methods* ; Young Adult
Abstract
OBJECTIVE: The aim of this randomized, sham-controlled study was to investigate the therapeutic effects of underlying neurobiological changes after 2-week repetitive transcranial magnetic stimulation (rTMS) treatment using functional connectivity magnetic resonance imaging in patients with major depression. METHODS: Twenty-four patients with major depressive disorder diagnosed with DSM-IV-TR criteria were randomly assigned to the active rTMS (n = 13) or sham (n = 11) groups from January 2009 to June 2011. rTMS was given for 2 weeks at 110% of the motor threshold for 10 minutes at 10 Hz over the left dorsolateral prefrontal cortex (DLPFC). Resting state functional connectivity was evaluated before and after rTMS. The 17-item Hamilton Depression Rating Scale (HDRS) was administered, and neurocognitive tasks were performed. We examined between-group differences in functional connectivity changes from the bilateral DLPFC. RESULTS: Participants in the active rTMS group showed significant clinical improvement in HDRS scores compared to those in the sham group (P < .001). After 2-week rTMS, there were significant differences in changes in DLPFC-left caudate connectivity (corrected P < .05): the active group showed a greater reduction of connectivity strength between the DLPFC and left caudate compared to the sham group. Reduced levels of DLPFC-left caudate connectivity predicted improvement in depressive symptoms (r = 0.58, P = .001). Additionally, a positive correlation between residual depressive symptoms and connectivity strength after 2-week rTMS was found (r = 0.46, P = .023). CONCLUSIONS: High-frequency rTMS over the left DLPFC showed therapeutic effects in patients with major depression. The therapeutic effect of rTMS is related to the modulation of functional connectivity in the frontostriatal network. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01325831.
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/147146
DOI
10.4088/JCP.15m10110
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Psychiatry (정신과학교실)
Yonsei Authors
강지인(Kang, Jee In) ; 김경란(Kim, Kyung Ran) ; 남궁기(Namkoong, Kee) ; 안석균(An, Suk Kyoon) ; 이은(Lee, Eun)
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Full Text
http://www.psychiatrist.com/JCP/article/Pages/2016/v77n09/v77n0908.aspx
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