
Keywords: MDD; major depressive disorder; LPS; lipopolysaccharide; TNF-α; tumor necrosis factor-alpha; IL-6; interleukin 6; IL-1β; interleukin 1 beta; PHA; phytohemagglutinin; ACTH; adrenocorticotropic hormone; M.I.N.I.; Mini International Neuropsychiatric Interv