opiod system
Spotlight: Antidepressants and the endogenous opioid system (Fricker, et al, 2025)
"A growing body of evidence links the opioid system w/ major depressive disorder... two different widely used antidepressants, tianeptine & ketamine, both interact with MOR; tianeptine as a full agonist, ketamine as a positive allosteric modulator. Both produce antidepressant effects within days."
antidepressants
Spotlight: Large responses to antidepressants or methodological artifacts? A secondary analysis of STAR∗D, a single-arm, open-label, nonindustry antidepressant trial (Xu, et al, 2025)
"...our results do not support the notion that a subgroup of patients with a large response exists. Instead, these findings support the assumption that the putative subgroups from industry randomized controlled trials may be artifacts caused by methodological biases."
