Biomaterial Database

Stimulation of 18-hydroxy-11-deoxycorticosterone secretion by angiotensin II and potassium. 1978

T J Moore, and L M Braley, and G H Williams

The control of 18-hydroxy-11-deoxycorticosterone (18-OH-DOC) secretion is incompletely understood: ACTH seems to be the dominant regulator, the importance of angiotensin II (A-II) is uncertain, and the effect of potassium has not been investigated. The purpose of this study was to evaluate the 18-OH-DOC response to these three stimuli in vitro. Suspensions of isolated rat adrenal glomerulosa or fasciculata cells were stimulated with either alpha-1-24 ACTH (0.04 mU/ml), A-II (25 ng/ml), or potassium (5.9 mEq/liter), and 18-OH-DOC production was measured. In glomerulosa cells, ACTH produced the greatest 18-OH-DOC response but A-II and potassium also produced significant (P less than 0.001) 18-OH-DOC increases (control, 162 +/- 14 (SE) ng/10(6) cells incubated; A-II, 368 +/- 39; potassium, 380 +/- 37; ACTH, 1544 +/- 165). In fasciculata cells, 18-OH-DOC production increased with ACTH but not with A-II or potassium. These results document that A-II and potassium, as well as ACTH, can stimulate 18-OH-DOC production by glomerulosa but not by fascicuata cells. The response to A-II may provide an explanation for the reported increase in 18-OH-DOC production after sodium restriction.

UI	MeSH Term	Description	Entries
D011188	Potassium	An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
D002478	Cells, Cultured	Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.	Cultured Cells,Cell, Cultured,Cultured Cell
D003900	Desoxycorticosterone	A steroid metabolite that is the 11-deoxy derivative of CORTICOSTERONE and the 21-hydroxy derivative of PROGESTERONE	21-Hydroxyprogesterone,Cortexone,Deoxycorticosterone,Desoxycortone,11-Decorticosterone,21-Hydroxy-4-pregnene-3,20-dione,11 Decorticosterone,21 Hydroxy 4 pregnene 3,20 dione,21 Hydroxyprogesterone
D005260	Female		Females
D000311	Adrenal Glands	A pair of glands located at the cranial pole of each of the two KIDNEYS. Each adrenal gland is composed of two distinct endocrine tissues with separate embryonic origins, the ADRENAL CORTEX producing STEROIDS and the ADRENAL MEDULLA producing NEUROTRANSMITTERS.	Adrenal Gland,Gland, Adrenal,Glands, Adrenal
D000804	Angiotensin II	An octapeptide that is a potent but labile vasoconstrictor. It is produced from angiotensin I after the removal of two amino acids at the C-terminal by ANGIOTENSIN CONVERTING ENZYME. The amino acid in position 5 varies in different species. To block VASOCONSTRICTION and HYPERTENSION effect of angiotensin II, patients are often treated with ACE INHIBITORS or with ANGIOTENSIN II TYPE 1 RECEPTOR BLOCKERS.	Angiotensin II, Ile(5)-,Angiotensin II, Val(5)-,5-L-Isoleucine Angiotensin II,ANG-(1-8)Octapeptide,Angiotensin II, Isoleucine(5)-,Angiotensin II, Valine(5)-,Angiotensin-(1-8) Octapeptide,Isoleucine(5)-Angiotensin,Isoleucyl(5)-Angiotensin II,Valyl(5)-Angiotensin II,5 L Isoleucine Angiotensin II,Angiotensin II, 5-L-Isoleucine
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D015070	18-Hydroxydesoxycorticosterone	An analog of desoxycorticosterone which is substituted by a hydroxyl group at the C-18 position.	18 Hydroxydesoxycorticosterone,18-Hydroxy-11-Deoxycorticosterone,18-Hydroxy-11-Desoxycorticosterone,18 Hydroxy 11 Deoxycorticosterone,18 Hydroxy 11 Desoxycorticosterone,Hydroxydesoxycorticosterone, 18
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus