Biomaterial Database

Mineralocorticoid like effect of new 18-hydroxy-steroid isolated from urine of hypertensive patients. 1976

M Palem-Vliers, and F Fontaine, and P Genard

The affinity of new urinary 18-hydroxy-steroid (Cp x) for mineralocorticoid receptors was estimated. When rat kidney slices were incubated with 2 x 10(-9) M 3H-aldosterone, Cp x (2 x 10(-5) M) was able to compete with aldosterone for the mineralocorticoid cytosol receptors. Cp x had low but significant affinity for mineralocorticoid receptor sites. This affinity was less than that obtained with 18-OH-progesterone. Moreover, in the adrenalectomized rats, the injection of Cp x induced a decrease of urinary Na+/K+ ratio which seems comparable to that obtained with 18-OH-progesterone.

UI	MeSH Term	Description	Entries
D006973	Hypertension	Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.	Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D008297	Male		Males
D008901	Mineralocorticoids	A group of CORTICOSTEROIDS primarily associated with water and electrolyte balance. This is accomplished through the effect on ION TRANSPORT in renal tubules, resulting in retention of sodium and loss of potassium. Mineralocorticoid secretion is itself regulated by PLASMA VOLUME, serum potassium, and ANGIOTENSIN II.	Mineralocorticoid,Mineralocorticoid Effect,Mineralocorticoid Effects,Effect, Mineralocorticoid,Effects, Mineralocorticoid
D011955	Receptors, Drug	Proteins that bind specific drugs with high affinity and trigger intracellular changes influencing the behavior of cells. Drug receptors are generally thought to be receptors for some endogenous substance not otherwise specified.	Drug Receptors,Drug Receptor,Receptor, Drug
D006900	Hydroxylation	Placing of a hydroxyl group on a compound in a position where one did not exist before. (Stedman, 26th ed)	Hydroxylations
D006908	Hydroxyprogesterones	Metabolites or derivatives of PROGESTERONE with hydroxyl group substitution at various sites.
D006914	Hydroxysteroids	Steroids in which one or more hydroxy groups have been substituted for hydrogen atoms either within the ring skeleton or on any of the side chains.
D000315	Adrenalectomy	Excision of one or both adrenal glands. (From Dorland, 28th ed)	Adrenalectomies
D000450	Aldosterone	A hormone secreted by the ADRENAL CORTEX that regulates electrolyte and water balance by increasing the renal retention of sodium and the excretion of potassium.	Aldosterone, (+-)-Isomer,Aldosterone, (11 beta,17 alpha)-Isomer