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Neuroscientist ; 22(1): 26-45, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25488850

RESUMO

Selective serotonin reuptake inhibitors are the mostly widely used treatment for major depressive disorders and also are prescribed for several anxiety disorders. However, similar to most antidepressants, selective serotonin reuptake inhibitors suffer from two major problems: They only show beneficial effects after 2 to 4 weeks and only about 33% of patients show remission to first-line treatment. Thus, there is a considerable need for development of more effective antidepressants. There is a growing body of evidence supporting critical roles of 5-HT1A and 5-HT4 receptor subtypes in mediating successful depression treatments. In addition, appropriate activation of these receptors may be associated with a faster onset of the therapeutic response. This review will examine the known roles of 5-HT1A and 5-HT4 receptors in mediating both the pathophysiology of depression and anxiety and the treatment of these mood disorders. At the end of the review, the role of these receptors in the regulation of adult hippocampal neurogenesis will also be discussed. Ultimately, we propose that novel antidepressant drugs that selectively target these serotonin receptors could be developed to yield improvements over current treatments for major depressive disorders.


Assuntos
Antidepressivos/farmacologia , Receptor 5-HT1A de Serotonina/metabolismo , Receptores 5-HT4 de Serotonina/metabolismo , Animais , Antidepressivos/uso terapêutico , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Humanos , Transtornos do Humor/tratamento farmacológico , Transtornos do Humor/metabolismo , Neurogênese/efeitos dos fármacos , Neurogênese/fisiologia
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