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Depression is the major psychiatric ailment of our times, afflicting ∼20% of the population. Despite its prevalence, the pathophysiology of this complex disorder is not well understood. In addition, although antidepressants have been in existence for the past several decades, the mechanisms that underlie their therapeutic effects remain elusive. Building evidence implicates a role for the plasticity...
It is well documented that in mammals new neurons are generated in the dentate gyrus (DG) and integrated into hippocampal circuits throughout their life. However, functions of these newly generated cells are still hotly debated. One of the important factors that may influence the rate of DG neurogenesis is serotonin. Apart from being a neurotransmitter and neuromodulator it plays many other roles...
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