Biomaterial Database

Amplification of nocturnal melatonin secretion in women with functional hypothalamic amenorrhea. 1988

S L Berga, and J F Mortola, and S S Yen

Department of Reproductive Medicine, School of Medicine, University of California, San Diego, La Jolla, California 92093.

Plasma melatonin levels were determined by a sensitive RIA at 30 min intervals for 24h in 7 women with functional hypothalamic amenorrhea (HA) and in 7 age and season matched normal cycling women in the early follicular phase (NC). While daytime melatonin concentrations were nondetectable in both groups, the integrated nocturnal levels were 3-fold greater in HA (244 +/- 58 (SE) vs 74 +/- 32 pmol-min/Lx10(3), p less than 0.005). This melatonin increase in HA was due to an elevated peak amplitude (p less than 0.01) and extended duration (p less than 0.05). The latter was mostly due to a significant delay in the offset time of the amplified nocturnal melatonin secretion.

UI	MeSH Term	Description	Entries
D007027	Hypothalamic Diseases	Neoplastic, inflammatory, infectious, and other diseases of the hypothalamus. Clinical manifestations include appetite disorders; AUTONOMIC NERVOUS SYSTEM DISEASES; SLEEP DISORDERS; behavioral symptoms related to dysfunction of the LIMBIC SYSTEM; and neuroendocrine disorders.	Froehlich's Syndrome,Hypothalamic-Neurohypophyseal Disorders,Pituitary Diencephalic Syndrome,Hypothalamic Dysfunction Syndromes,Hypothalamic Dysinhibition Syndrome,Hypothalamic Overactivity Syndrome,Hypothalamic Pseudopuberty,Hypothalamic-Adenohypophyseal Disorders,Diencephalic Syndrome, Pituitary,Diencephalic Syndromes, Pituitary,Disease, Hypothalamic,Diseases, Hypothalamic,Disorder, Hypothalamic-Adenohypophyseal,Disorder, Hypothalamic-Neurohypophyseal,Disorders, Hypothalamic-Adenohypophyseal,Disorders, Hypothalamic-Neurohypophyseal,Dysfunction Syndrome, Hypothalamic,Dysfunction Syndromes, Hypothalamic,Dysinhibition Syndrome, Hypothalamic,Dysinhibition Syndromes, Hypothalamic,Froehlich Syndrome,Froehlichs Syndrome,Hypothalamic Adenohypophyseal Disorders,Hypothalamic Disease,Hypothalamic Dysfunction Syndrome,Hypothalamic Dysinhibition Syndromes,Hypothalamic Neurohypophyseal Disorders,Hypothalamic Overactivity Syndromes,Hypothalamic Pseudopuberties,Hypothalamic-Adenohypophyseal Disorder,Hypothalamic-Neurohypophyseal Disorder,Overactivity Syndrome, Hypothalamic,Overactivity Syndromes, Hypothalamic,Pituitary Diencephalic Syndromes,Pseudopuberties, Hypothalamic,Pseudopuberty, Hypothalamic,Syndrome, Froehlich's,Syndrome, Hypothalamic Dysfunction,Syndrome, Hypothalamic Dysinhibition,Syndrome, Hypothalamic Overactivity,Syndromes, Hypothalamic Dysfunction,Syndromes, Hypothalamic Dysinhibition,Syndromes, Hypothalamic Overactivity,Syndromes, Pituitary Diencephalic
D007986	Luteinizing Hormone	A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Luteinizing hormone regulates steroid production by the interstitial cells of the TESTIS and the OVARY. The preovulatory LUTEINIZING HORMONE surge in females induces OVULATION, and subsequent LUTEINIZATION of the follicle. LUTEINIZING HORMONE consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH and FSH), but the beta subunit is unique and confers its biological specificity.	ICSH (Interstitial Cell Stimulating Hormone),Interstitial Cell-Stimulating Hormone,LH (Luteinizing Hormone),Lutropin,Luteoziman,Luteozyman,Hormone, Interstitial Cell-Stimulating,Hormone, Luteinizing,Interstitial Cell Stimulating Hormone
D008550	Melatonin	A biogenic amine that is found in animals and plants. In mammals, melatonin is produced by the PINEAL GLAND. Its secretion increases in darkness and decreases during exposure to light. Melatonin is implicated in the regulation of SLEEP, mood, and REPRODUCTION. Melatonin is also an effective antioxidant.
D002940	Circadian Rhythm	The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli.	Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000568	Amenorrhea	Absence of menstruation.	Postpartum Amenorrhea,Amenorrhea, Postpartum,Postpartum Amenorrheas
D012621	Seasons	Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)	Seasonal Variation,Season,Seasonal Variations,Variation, Seasonal,Variations, Seasonal