Biomaterial Database

The relation between plasma androstenedione and oestrone levels in untreated and corticosteroid-treated post-menopausal women. 1978

D H Marshall, and R Crilly, and B E Nordin

Plasma oestrone (E1) and androstenedione (A) were measured in 96 untreated and 18 corticosteroid-treated post-menopausal women. Levels of both hormones were consistently lower in the steroid-treated cases, presumably due to suppression of ACTH secretion. There was a clear relationship between A and E1 levels in both groups and when the data were pooled they formed a continuous series with a curvilinear relationship going through the origin. This relationship could be described by an equation based on Michaelis-Menten kinetics, suggesting that the rate of A to E1 conversion is an inverse function of the plasma androstenedione level. The main determinant of plasma E1 was plasma A; body weight and age were of subsidiary importance. Secondary oestrogen deficiency may be a factor in the genesis of steroid-induced osteoporosis in post-menopausal women and oestrogen therapy may be indicated in this group of patients.

UI	MeSH Term	Description	Entries
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
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011239	Prednisolone	A glucocorticoid with the general properties of the corticosteroids. It is the drug of choice for all conditions in which routine systemic corticosteroid therapy is indicated, except adrenal deficiency states.	Di-Adreson-F,Predate,Predonine,Di Adreson F,DiAdresonF
D011241	Prednisone	A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver.	Dehydrocortisone,delta-Cortisone,Apo-Prednisone,Cortan,Cortancyl,Cutason,Dacortin,Decortin,Decortisyl,Deltasone,Encorton,Encortone,Enkortolon,Kortancyl,Liquid Pred,Meticorten,Orasone,Panafcort,Panasol,Predni Tablinen,Prednidib,Predniment,Prednison Acsis,Prednison Galen,Prednison Hexal,Pronisone,Rectodelt,Sone,Sterapred,Ultracorten,Winpred,Acsis, Prednison
D002369	Castration	Surgical removal or artificial destruction of gonads.	Gonadectomy,Castrations,Gonadectomies
D004970	Estrone	An aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone, a major mammalian estrogen. It is converted from ANDROSTENEDIONE directly, or from TESTOSTERONE via ESTRADIOL. In humans, it is produced primarily by the cyclic ovaries, PLACENTA, and the ADIPOSE TISSUE of men and postmenopausal women.	Folliculin (Hormone),Estrone, (+-)-Isomer,Estrone, (8 alpha)-Isomer,Estrone, (9 beta)-Isomer,Estrovarin,Kestrone,Unigen,Wehgen
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000305	Adrenal Cortex Hormones	HORMONES produced by the ADRENAL CORTEX, including both steroid and peptide hormones. The major hormones produced are HYDROCORTISONE and ALDOSTERONE.	Adrenal Cortex Hormone,Corticoid,Corticoids,Corticosteroid,Corticosteroids,Cortex Hormone, Adrenal,Hormone, Adrenal Cortex,Hormones, Adrenal Cortex
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