Dopamine System Dysregulation in Major Depressive Disorders.

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Belujon P, Grace AA

Dopamine System Dysregulation in Major Depressive Disorders.

Int J Neuropsychopharmacol. 2017 Dec 1;20(12):1036-1046. doi: 10.1093/ijnp/pyx056.

PubMed ID
29106542 [ View in PubMed
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Abstract

Anhedonia is considered a core feature of major depressive disorder, and the dopamine system plays a pivotal role in the hedonic deficits described in this disorder. Dopaminergic activity is complex and under the regulation of multiple brain structures, including the ventral subiculum of the hippocampus and the basolateral amygdala. Whereas basic and clinical studies demonstrate deficits of the dopaminergic system in depression, the origin of these deficits likely lies in dysregulation of its regulatory afferent circuits. This review explores the current information regarding the afferent modulation of the dopaminergic system and its relevance to major depressive disorder, as well as some of the system-level effects of novel antidepressants such as agomelatine and ketamine.

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