期刊
EUROPEAN JOURNAL OF PHARMACOLOGY
卷 589, 期 1-3, 页码 149-156出版社
ELSEVIER
DOI: 10.1016/j.ejphar.2008.05.020
关键词
cannabinoid CB1 receptor antagonist; selective serotonin reuptake inhibitor; forced swimming test; tail suspension test; subthreshold close
The main clinically used antidepressant drugs are selective monoamine reuptake inhibitors, including selective serotonin reuptake inhibitors (citalopram, sertraline), selective dopamine reuptake inhibitor (nomifensine) and selective noradrenaline reuptake inhibitor (reboxetine), but they have various side effects. Because cannabinoid CB, receptor antagonists (SR141716A, AM251) enhance monoamine release, they might be beneficial in the therapy of affective disorders. We hypothesized that the use of monoamine reuptake inhibitors in combination with cannabinoid CB1 receptor antagonists would allow a lower dose of monoamine reuptake inhibitors to be used in the therapy of depression, thereby reducing or eliminating the side effects. To test this hypothesis, we examined the combination of SR141716A or AM251 with citalopram, sertraline, nomifensine or reboxetine at subthreshold doses to see whether these combinations would show an additive effect in the forced swimming test and the tail Suspension test with mice. Subthreshold doses of cannabinoid CB1 receptor antagonist and selective serotonin reuptake inhibitors, which separately had no effect on the immobility of mice in the tests, showed a clear effect when the drugs were administered at 40 and 30 min, respectively, before the tests, without any change of motor activity. Therefore, the use of subthreshold doses of these agents in combination might be useful to enhance mainly serotonergic neurotransmission, and to reduce or eliminate the side effects of citalopram and sertraline. (c) 2008 Elsevier B.V. All rights reserved.
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