“…In fact, patients affected by these psychiatric disorders show elevated 24-hour circulating levels of adrenocorticotropin (ACTH) and cortisol [Linkowski et al, 1985;Mortola et al, 1987Mortola et al, , 1989], a blunted ACTH-cortisol response to the administration of exoge nous corticotropin-releasing hormone (CRH) [Gold et al, 1986a, b;Mortola et al, 1989] and nonsuppressed cortisol responses to dexamethasone suppression test [Danowski et al, 1972;Carroll et al, 1976;Gwirstman et al, 1983;Kiriike et al, 1986]. Furthermore, blunted or delayed thyroid-stimulating hormone (TSH) re sponses to thyrotropin-releasing hormone (TRH) have been reported in bulimia [Gwirstman et al, 1983;Norris et al, 1985;Kiriike et al, 1987;, anorexia nervosa [Norris et al, 1985;Kiriike et al, 1987;Kiyohara et al, 1987] and depression [Loosen and Prange, 1982], Concerning growth hormone (GH) secre tion, an anomalous GH responsiveness to TRH has been found in all of these psychiatric disorders [Maeda et al, 1976;Gold et al, 1981;Gwirstman et al, 1983;Kiriike et al, 1987;, In addition, studies of GH release induced by normally acting stimuli such as GHreleasing hormone (GHRH), clonidine or hypoglycemia have shown a disturbed hypothalamic pituitary regula tion of GH secretion in anorexic [Landon et al, 1966;Nakagawa et al, 1985;Baranowska et al, 1986;Masuda et al, 1988;Brambilla et al, 1989] and depressed [Mueller et al, 1969;Casper et al, 1977;Lesch et al. 1987;Ansseau et al, 1988;Lesch et al, 1988] patients.…”