Biomaterial Database

Plasma luteinizing hormone-releasing hormone levels in normal women and patients with amenorrhea. 1980

Y Kawamura, and A Miyake, and T Aono, and K Kurachi

Plasma levels of immunoreactive luteinizing hormone-releasing hormone (LH-RH) in 89 women with normal menstrual cycles and 109 patients with amenorrhea of various etiologies were determined by specific radioimmunoassay after methanol extraction. The LH-RH levels in patients with hypergonadotropism and Sheehan's syndrome were more than 10 pg/ml, and were significantly higher than basal levels during normal cycles (4.2 +/- 0.3 pg/ml). The mean levels of LH-RH were low in all hypogonadotropic patients with amenorrhea, with the exception of a few patients who showed high LH-RH levels suggestive of a pituitary lesion. The LH-RH levels in patients with polycystic ovary syndrome were comparable with basal levels during normal cycles. It is concluded that, although there is considerable overlap of the plasma LH-RH levels in each group of amenorrheic patients divided according to gonadotropin level, determination of LH-RH levels may be useful for the differentiation of hypothalamic amenorrhea from pituitary amenorrhea.

UI	MeSH Term	Description	Entries
D007006	Hypogonadism	Condition resulting from deficient gonadal functions, such as GAMETOGENESIS and the production of GONADAL STEROID HORMONES. It is characterized by delay in GROWTH, germ cell maturation, and development of secondary sex characteristics. Hypogonadism can be due to a deficiency of GONADOTROPINS (hypogonadotropic hypogonadism) or due to primary gonadal failure (hypergonadotropic hypogonadism).	Hypergonadotropic Hypogonadism,Hypogonadism, Isolated Hypogonadotropic,Hypogonadotropic Hypogonadism,Hypogonadism, Hypergonadotropic,Hypogonadism, Hypogonadotropic
D007018	Hypopituitarism	Diminution or cessation of secretion of one or more hormones from the anterior pituitary gland (including LH; FOLLICLE STIMULATING HORMONE; SOMATOTROPIN; and CORTICOTROPIN). This may result from surgical or radiation ablation, non-secretory PITUITARY NEOPLASMS, metastatic tumors, infarction, PITUITARY APOPLEXY, infiltrative or granulomatous processes, and other conditions.	Adenohypophyseal Hyposecretion,Anterior Pituitary Hyposecretion Syndrome,Sheehan Syndrome,Simmonds Disease,Hyposecretion Syndrome, Anterior Pituitary,Hyposecretion, Adenohypophyseal,Pituitary Insufficiency,Postpartum Hypopituitarism,Postpartum Panhypopituitarism,Postpartum Pituitary Insufficiency,Sheehan's Syndrome,Simmonds' Disease,Disease, Simmonds,Hypopituitarism, Postpartum,Insufficiency, Pituitary,Panhypopituitarism, Postpartum,Pituitary Insufficiency, Postpartum,Sheehans Syndrome,Simmond's Disease,Syndrome, Sheehan,Syndrome, Sheehan's
D007987	Gonadotropin-Releasing Hormone	A decapeptide that stimulates the synthesis and secretion of both pituitary gonadotropins, LUTEINIZING HORMONE and FOLLICLE STIMULATING HORMONE. GnRH is produced by neurons in the septum PREOPTIC AREA of the HYPOTHALAMUS and released into the pituitary portal blood, leading to stimulation of GONADOTROPHS in the ANTERIOR PITUITARY GLAND.	FSH-Releasing Hormone,GnRH,Gonadoliberin,Gonadorelin,LH-FSH Releasing Hormone,LHRH,Luliberin,Luteinizing Hormone-Releasing Hormone,Cystorelin,Dirigestran,Factrel,Gn-RH,Gonadorelin Acetate,Gonadorelin Hydrochloride,Kryptocur,LFRH,LH-RH,LH-Releasing Hormone,LHFSH Releasing Hormone,LHFSHRH,FSH Releasing Hormone,Gonadotropin Releasing Hormone,LH FSH Releasing Hormone,LH Releasing Hormone,Luteinizing Hormone Releasing Hormone,Releasing Hormone, LHFSH
D008593	Menopause	The last menstrual period. Permanent cessation of menses (MENSTRUATION) is usually defined after 6 to 12 months of AMENORRHEA in a woman over 45 years of age. In the United States, menopause generally occurs in women between 48 and 55 years of age.	Change of Life, Female
D008598	Menstruation	The periodic shedding of the ENDOMETRIUM and associated menstrual bleeding in the MENSTRUAL CYCLE of humans and primates. Menstruation is due to the decline in circulating PROGESTERONE, and occurs at the late LUTEAL PHASE when LUTEOLYSIS of the CORPUS LUTEUM takes place.
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011085	Polycystic Ovary Syndrome	A complex disorder characterized by infertility, HIRSUTISM; OBESITY; and various menstrual disturbances such as OLIGOMENORRHEA; AMENORRHEA; ANOVULATION. Polycystic ovary syndrome is usually associated with bilateral enlarged ovaries studded with atretic follicles, not with cysts. The term, polycystic ovary, is misleading.	Stein-Leventhal Syndrome,Polycystic Ovarian Syndrome,Polycystic Ovary Syndrome 1,Sclerocystic Ovarian Degeneration,Sclerocystic Ovaries,Sclerocystic Ovary Syndrome,Ovarian Degeneration, Sclerocystic,Ovarian Syndrome, Polycystic,Ovary Syndrome, Polycystic,Ovary, Sclerocystic,Sclerocystic Ovary,Stein Leventhal Syndrome,Syndrome, Polycystic Ovary,Syndrome, Stein-Leventhal
D002369	Castration	Surgical removal or artificial destruction of gonads.	Gonadectomy,Castrations,Gonadectomies
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man