Abstract Background Major depression (MD) is a prevalent and debilitating disorder, characterized by anhedonia, persistent low mood, and learned helplessness, affecting up to 21% of adults over a lifetime. Chronic stress is a major environmental contributor to MD, and preclinical models of chronic mild stress (CMS) allow investigation of its behavioral and neurobiological consequences....
Abstract Background Recent clinical trials show that 5-MeO-DMT produces rapid antidepressant effects, yet the receptor mechanisms underlying these outcomes remain incompletely defined. Although 5-MeO-DMT is a high-affinity agonist at multiple serotonergic receptors, the relative contribution of 5-HT1A and 5-HT2A receptor signaling to its antidepressant-like actions has not been causally...