Beck-Friis J., Kjellman B.F., Aperia B., Unden F., Von Rosen D., Ljunggren J.G., Wetterberg L. (1985) Serum melatonin in relation to clinical variables in patients with major depressive disorders and hypothesis of a low melatonin syndrome. Acta Psychiatr Scand71: 319-330
2.
Chazot G., Claustrat B., Brun J., Oliver M. (1985) Rapid antidepressant activity of des-tyrosine gamma endorphin correlation with urinary melatonin. Biol Psychiatr20: 1026-1030
3.
Claustrat B., Chazot G., Brun J. ( 1981) Melatonin secretion in man: stimulating effect of des-tyrosine gamma endorphin. Neuroendocrinology (Letter) 3: 35-37
4.
Claustrat B., Chazot G., Brun J., Jordan D., Sassolas G. (1984) A chronobiological study of melatonin and cortisol secretion in depressed subjects: plasma melatonin, a biochemical marker in major depression. Biol Psychiatr19: 1215-1228
5.
Gaffori O., De Wied D. (1982) Effect of des-tyrosine gamma endorphin and des-enkephalin gamma endorphin on active and passive avoidance behaviour in rats: a dose response relationship study. Eur J Pharmacol85: 115-119
6.
Geffard M., Gaffori O., Chaueau J., Muyard J.P., Le Moal M. (1981) Dramatic increase in pineal melatonin levels in the rat after subcutaneous injection of des-tyrosine gamma endorphin. Neuroscience (Letter) 27: 329-334
7.
Sitsen J M A (1992) Des-Enkephalin-Gamma-Endorphin (ORG 5878): A revolutionary antipsychotic neuropeptide. Int J Psychopharmacol Res (in press)
8.
Thompson C., Franey C., Arendt J., Chekley S.A. (1988) A comparison of melatonin secretion in normal subjects and depressed patients. Br J Psychiatr152: 260-266
9.
Thompson C., Mezey G., Corn T., Franey C., English T., Arendt J., Chekley S.A. (1985) The effect of desipramine upon melatonin and cortisol secretion in depressed patients and normal volunteers. Br J Psychiatr147: 389-394
