title: 24-hour cortisol measures in adolescents with major depression: a controlled study.
abstract: Plasma cortisol levels were determined every 20 min for 24 hr in depressed adolescents (n = 27) meeting research diagnostic criteria (RDC) for major depressive disorder (MDD) and normal controls (n = 32). All subjects were between 12 and 18 years of age, at least Tanner Stage III of sexual development, medically healthy, and medication free at the time of the studies. The results showed that cortisol secretory patterns were very similar between the two groups with the exception that the depressed adolescents showed significantly elevated cortisol levels around sleep onset (a period when cortisol is usually suppressed). Subgroup analyses showed that most of these differences were contributed by the suicidal/inpatient depressed adolescents. The cause of the elevated cortisol during the normally quiescent period warrants further investigation and may be related to other biological disturbances around sleep onset (difficulty initiating sleep, reduced rapid eye movement (REM) latency, and alterations in sleep-stimulated growth hormone secretion).
authors.affiliation: Department of Psychiatry, University of Pittsburgh School of Medicine, PA 15213.
authors.forename: R E
authors.initials: RE
authors.lastname: Dahl
authors.forename: N D
authors.initials: ND
authors.lastname: Ryan
authors.forename: J
authors.initials: J
authors.lastname: Puig-Antich
authors.forename: N A
authors.initials: NA
authors.lastname: Nguyen
authors.forename: M
authors.initials: M
authors.lastname: al-Shabbout
authors.forename: V A
authors.initials: VA
authors.lastname: Meyer
authors.forename: J
authors.initials: J
authors.lastname: Perel
mesh_terms: D000293:Adolescent; D002940:Circadian Rhythm / Q000502:physiology*; D003866:Depressive Disorder / Q000097:blood* / Q000175:diagnosis / Q000523:psychology; D005260:Female; D006760:Hospitalization; D006801:Humans; D006854:Hydrocortisone / Q000097:blood*; D008297:Male; D011569:Psychiatric Status Rating Scales; D012894:Sleep Stages / Q000502:physiology; D013405:Suicide / Q000523:psychology
chemical_list: D006854:Hydrocortisone