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A selective review of glutamate pharmacological therapy in obsessive–compulsive and related disorders

Authors Grados M, Atkins E, Kovacikova GI, McVicar E

Received 8 September 2014

Accepted for publication 10 December 2014

Published 28 April 2015 Volume 2015:8 Pages 115—131


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 4

Editor who approved publication: Professor Igor Elman

Marco A Grados,1 Elizabeth B Atkins,2 Gabriela I Kovacikova,3 Erin McVicar4

1Division of Child and Adolescent Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD, 2Department of Psychology, Smith College, Northampton, MA, 3Department of Psychology, Wellesley College, Wellesley, MA, 4Susquehanna University, Selinsgrove, PA, USA

Abstract: Glutamate, an excitatory central nervous system neurotransmitter, is emerging as a potential alternative pharmacological treatment when compared to gamma-aminobutyric acid (GABA)-, dopamine-, and serotonin-modulating treatments for neuropsychiatric conditions. The pathophysiology, animal models, and clinical trials of glutamate modulation are explored in disorders with underlying inhibitory deficits (cognitive, motor, behavioral) including obsessive–compulsive disorder, attention deficit hyperactivity disorder, Tourette syndrome, trichotillomania, excoriation disorder, and nail biting. Obsessive–compulsive disorder, attention deficit hyperactivity disorder, and grooming disorders (trichotillomania and excoriation disorder) have emerging positive data, although only scarce controlled trials are available. The evidence is less supportive for the use of glutamate modulators in Tourette syndrome. Glutamate-modulating agents show promise in the treatment of disorders of inhibition.

Keywords: glutamate, obsessive–compulsive disorder, attention deficit hyperactivity disorder, trichotillomania, excoriation disorder, modulation

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