Dapoxetine: An Innovative Approach in the Therapeutic Management In Animal Model of Depression
Abstract
Stress is a complicated condition that effects on person’s mental and physical health, and it is the precursor of other psychological disorders mainly depression. Serotonin (5-Hydroxytryptamine; 5-HT) is well known to have hypofunction in unpredictable chronic mild stress whereas, unpredictable chronic mild stress (UCMS) has produced the most steady and continuous results of anhedonia and learned helplessness particularly in rats. The stress-induced depressive like behavior can be reversed by many antidepressants such as SSRIs. Selective serotonin [5-hydroxytryptamine (5-HT)] reuptake inhibitors (SSRIs) is mostly prescribed antidepressant that can deplete neurochemical and behavioral deficits. The present study was designed to investigate whether repeated administration of dapoxetine at dose (1.0 mg/kg) could reverse the behavioral deficits induced by UCMS in rat model of depression. UCMS induced behavioral deficits. Locomotor activity in familiar environment (home cage), novel (open field) environment and anxiolytic behavior in light/dark activity box were greater in unstressed group than stressed group. The inhibition of serotonin reuptake at pre-synaptic receptors by repeated dapoxetine administration is mainly the mechanism involved and discussed. This particular study may assist in novel approach for understanding the interaction between stress and behavioral functions and extending the therapeutic use of dapoxetine.
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