“…For example, the levels of vasopressin and a-MSH are lower in depressed patients, particularly those with melancholia (Laruelle, Seghers, Goffinet, Bouchez, & Legros, 1990;Maes, DeJonckheere, Vandervorst, Schotte, Cosyns, Raus, & Suy, 1991), Paradoxically, acute infection occurring during severe depression may produce (in addition to exacerbated depressive symptoms) a rebound activation of the anti-inflammatory system, which could temporarily attenuate the depressive symptomatology. The effects of acute endotoxin injection on depressed patients was recently examined (Bauer, Hohagen, Gimmel, Bruns, Lis, Krieger, Ambach, Guthmann, Grunze, Fritsch-Montero, Weissbach, Ganter, Frommnerger, Riemann, & Berger, 1995); as found, proinflammatory cytokines levels and body temperature were elevated during the first 6hr following the injection, and the patients "exhibited pronounced apathy".…”