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Behavioral alterations and pro-oxidant effect of a single ketamine administration to mice.

Francisca Charliane Carlos Da Silva, Maria Do Carmo de Oliveira Cito, Maria Izabel Gomes Da Silva, Brinell Arcanjo Moura, Manuel Rufino De Aquino Neto, Mariana Lima Feitosa, Raquell De Castro Chaves, Danielle Silveira Macedo, Silvania Maria Mendes De Vasconcelos, Marta Maria De França Fonteles, Francisca Cléa Florenço de Sousa

Brain Research Bulletin August 30, 2010 DOI: 10.1016/j.brainresbull.2010.05.011 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Controlled animal experiment Peer reviewed
Population Mice
Intervention Ketamine
Dose 5, 10 and 20 mg/kg i.p.
Duration Single administration
Measures elevated plus-maze, forced swimming test, tail suspension test, lipid peroxidation, nitrite content, catalase activity, GSH levels
Topics Esketamine Ketamine
Key findings A single ketamine injection in mice produced antidepressant-like reductions in immobility in the forced swimming and tail suspension tests, alongside increased anxiety-like behavior and locomotor activity. Ketamine also increased prefrontal cortex lipid peroxidation, nitrite content, and catalase activity while decreasing glutathione, which the authors interpret as a pro-oxidant effect.

Abstract

A growing body of evidence has pointed to the ionotropic glutamate N-methyl-d-aspartate receptor (NMDA) as an important player in the etiology of psychopathologies, including anxiety and major depression. Clinical findings suggest that ketamine may be used for the treatment of major depression. There is evidence that reactive oxygen species also play an important role in the pathogenesis of many diseases, particularly those which are neurological and psychiatric in nature. This study examined the behavioral and oxidative stress alterations after a single administration of ketamine (5, 10 and 20mg/kg i.p.) in mice. Ketamine presented a significant anxiogenic effect in the elevated plus-maze model of anxiety, also increasing locomotor activity. In the forced swimming and tail suspension tests, a significant decrease in immobility time after ketamine administration was observed. In addition to the behavioral changes induced by ketamine, this drug also increased lipid peroxidation, nitrite content and catalase activity, while decreased GSH levels in mice prefrontal cortex. In conclusion, our results confirm the antidepressant effects of ketamine, also showing a pro-oxidant effect of this drug.

Comparable studies

Other preclinical and animal studies on ketamine, most cited first.

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