The Role of the 5-HT1A Autoreceptor In Response to Antidepressant Treatment

Valerie Cardin
Selective Serotonin Reuptake Inhibitors (SSRIs) are the first-line treatment for major depression, but require several weeks to elicit a clinical effect. One mechanism that may underlie this delay in SSRI action implicates the gradual desensitization of 5-HT1A autoreceptors, leading to enhanced firing and increasing serotonin (5-HT) at the synapse. I hypothesized that in absence of 5-HT1A autoreceptors, fluoxetine (FLX) would improve behavior faster and more effectively. To specifically knock out 5-HT1A receptors in 5-HT neurons,...
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