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Peer-reviewed veterinary case report

Effects of a single bilateral infusion of R-ketamine in the rat brain regions of a learned helplessness model of depression.

Journal:
European archives of psychiatry and clinical neuroscience
Year:
2017
Authors:
Shirayama, Yukihiko & Hashimoto, Kenji
Affiliation:
Department of Psychiatry · Japan
Species:
rodent

Abstract

Effects of a single bilateral infusion of R-enantiomer of ketamine in rat brain regions of learned helplessness model of depression were examined. A single bilateral infusion of R-ketamine into infralimbic (IL) portion of medial prefrontal cortex (mPFC), CA3 and dentate gyrus (DG) of the hippocampus showed antidepressant effects. By contrast, a single bilateral infusion of R-ketamine into prelimbic (PL) portion of mPFC, shell and core of nucleus accumbens, basolateral amygdala and central nucleus of the amygdala had no effect. This study suggests that IL of mPFC, CA3 and DG of hippocampus might be involved in the antidepressant actions of R-ketamine.

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Original publication: https://pubmed.ncbi.nlm.nih.gov/27480092/