Mechanisms of nucleus accumbens deep brain stimulation in treating mental disorders

Growing evidence supports the effectiveness of deep brain stimulation (DBS) in treating various psychiatric disorders. DBS has the potential to selectively stimulate specific subcortical brain areas thus providing high-frequency electric stimulation of these regions. The nucleus accumbens (NAc), a f...

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Main Authors: Hanyang Ruan, Geya Tong, Minghui Jin, Kathrin Koch, Zhen Wang
Format: Article
Language:English
Published: KeAi Communications Co. Ltd. 2025-01-01
Series:Fundamental Research
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Online Access:http://www.sciencedirect.com/science/article/pii/S2667325824002747
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author Hanyang Ruan
Geya Tong
Minghui Jin
Kathrin Koch
Zhen Wang
author_facet Hanyang Ruan
Geya Tong
Minghui Jin
Kathrin Koch
Zhen Wang
author_sort Hanyang Ruan
collection DOAJ
description Growing evidence supports the effectiveness of deep brain stimulation (DBS) in treating various psychiatric disorders. DBS has the potential to selectively stimulate specific subcortical brain areas thus providing high-frequency electric stimulation of these regions. The nucleus accumbens (NAc), a frequent DBS target, has shown promise in treating psychiatric conditions like depression, obsessive-compulsive disorder, and addiction. In this review, we provide an overview across studies investigating the effects of NAc DBS in humans and animals and discuss potential mechanisms underlying its clinical efficacy. We address the anatomical properties of NAc and discuss, in particular, the frequently reported differential effects of NAc shell and NAc core DBS. Moreover, by outlining the various NAc cell types, transmitter systems (i.e., predominantly GABAergic and dopaminergic systems) and anatomical pathways that have been shown to be relevant for NAc DBS stimulation effects, we aim to further elucidate the neurobiological determinants of NAc DBS efficacy. Finally, since treatment effects of NAc DBS are most probably also related to alterations in NAc connected circuits or networks, we review studies focusing on the investigation of NAc DBS network effects. By examining these various components that are assumed to be of relevance in the context of NAc DBS, this review will hopefully contribute to increasing our knowledge about the mechanisms underlying NAc DBS and optimizing future selection of optimal DBS targets.
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issn 2667-3258
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publisher KeAi Communications Co. Ltd.
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spelling doaj-art-0f2e78a0cebf46778be8814cc3d406dc2025-01-29T05:02:38ZengKeAi Communications Co. Ltd.Fundamental Research2667-32582025-01-01514854Mechanisms of nucleus accumbens deep brain stimulation in treating mental disordersHanyang Ruan0Geya Tong1Minghui Jin2Kathrin Koch3Zhen Wang4Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China; TUM-Neuroimaging Center (TUM-NIC), Technical University of Munich, Munich 81675, GermanyShanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, ChinaShanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, ChinaTUM-Neuroimaging Center (TUM-NIC), Technical University of Munich, Munich 81675, Germany; Department of Neuroradiology, School of Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Munich 81675, Germany; Corresponding authors.Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China; School of Psychology, Shanghai Jiao Tong University, Shanghai 200030, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, China; Corresponding authors.Growing evidence supports the effectiveness of deep brain stimulation (DBS) in treating various psychiatric disorders. DBS has the potential to selectively stimulate specific subcortical brain areas thus providing high-frequency electric stimulation of these regions. The nucleus accumbens (NAc), a frequent DBS target, has shown promise in treating psychiatric conditions like depression, obsessive-compulsive disorder, and addiction. In this review, we provide an overview across studies investigating the effects of NAc DBS in humans and animals and discuss potential mechanisms underlying its clinical efficacy. We address the anatomical properties of NAc and discuss, in particular, the frequently reported differential effects of NAc shell and NAc core DBS. Moreover, by outlining the various NAc cell types, transmitter systems (i.e., predominantly GABAergic and dopaminergic systems) and anatomical pathways that have been shown to be relevant for NAc DBS stimulation effects, we aim to further elucidate the neurobiological determinants of NAc DBS efficacy. Finally, since treatment effects of NAc DBS are most probably also related to alterations in NAc connected circuits or networks, we review studies focusing on the investigation of NAc DBS network effects. By examining these various components that are assumed to be of relevance in the context of NAc DBS, this review will hopefully contribute to increasing our knowledge about the mechanisms underlying NAc DBS and optimizing future selection of optimal DBS targets.http://www.sciencedirect.com/science/article/pii/S2667325824002747Deep brain stimulationNucleus accumbensMental disorderNeuromodulationNeurophysiology
spellingShingle Hanyang Ruan
Geya Tong
Minghui Jin
Kathrin Koch
Zhen Wang
Mechanisms of nucleus accumbens deep brain stimulation in treating mental disorders
Fundamental Research
Deep brain stimulation
Nucleus accumbens
Mental disorder
Neuromodulation
Neurophysiology
title Mechanisms of nucleus accumbens deep brain stimulation in treating mental disorders
title_full Mechanisms of nucleus accumbens deep brain stimulation in treating mental disorders
title_fullStr Mechanisms of nucleus accumbens deep brain stimulation in treating mental disorders
title_full_unstemmed Mechanisms of nucleus accumbens deep brain stimulation in treating mental disorders
title_short Mechanisms of nucleus accumbens deep brain stimulation in treating mental disorders
title_sort mechanisms of nucleus accumbens deep brain stimulation in treating mental disorders
topic Deep brain stimulation
Nucleus accumbens
Mental disorder
Neuromodulation
Neurophysiology
url http://www.sciencedirect.com/science/article/pii/S2667325824002747
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