Rat renal medulla possess high capacity to catabolize prostaglandins

Prostaglandin E2 is converted to 15-keto-13,14 dihydro prostaglandin E2, 15-keto-prostaglandin F2α and 15-keto-13,14 dihydro prostaglandin F2α, by supernatants from rat kidney medulls. The main pathway for prostaglandin E2 inactivation is the combined action of 15 hydroxy dehydrogenase and Δ13 reduc...

Descripción completa

Guardado en:
Detalles Bibliográficos
Publicado: 1984
Materias:
rat
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0006291X_v124_n1_p69_Speziale
http://hdl.handle.net/20.500.12110/paper_0006291X_v124_n1_p69_Speziale
Aporte de:
id paper:paper_0006291X_v124_n1_p69_Speziale
record_format dspace
spelling paper:paper_0006291X_v124_n1_p69_Speziale2023-06-08T14:30:02Z Rat renal medulla possess high capacity to catabolize prostaglandins prostaglandin 15 hydroxysteroid dehydrogenase 9 ketoreductase animal cell kidney kidney medulla nonhuman priority journal rat Animal Carbon Radioisotopes Dinoprost Dinoprostone Kidney Medulla Kinetics Prostaglandin-Endoperoxide Synthase Prostaglandins Prostaglandins E Prostaglandins F Rats Support, Non-U.S. Gov't Prostaglandin E2 is converted to 15-keto-13,14 dihydro prostaglandin E2, 15-keto-prostaglandin F2α and 15-keto-13,14 dihydro prostaglandin F2α, by supernatants from rat kidney medulls. The main pathway for prostaglandin E2 inactivation is the combined action of 15 hydroxy dehydrogenase and Δ13 reductase enzymes. 9-Keto-reductase route constitutes a minor pathway. Prostaglandin F2α is converted into 15-keto-prostaglandin F2α, 15-keto-13,14 dihydro prostaglandin F2α and 15-keto-dihydro prostaglandin E2. Enzyme activities are time and substrate-concentration dependent. In the presence of an excess of substrate, rat renal medulls inactivates 40 and 56 times more prostaglandin E2 and prostaglandin F2α, respectively, than the amount which is released under basal conditions. These results are in contrast to the generally accepted concept that the kidney cortex is the sole site of renal prostaglandin catabolism, and suggest, for the first time, that rat renal medulls may be a key site for the modulation of prostaglandin levels in the kidney. © 1984. 1984 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0006291X_v124_n1_p69_Speziale http://hdl.handle.net/20.500.12110/paper_0006291X_v124_n1_p69_Speziale
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic prostaglandin
15 hydroxysteroid dehydrogenase
9 ketoreductase
animal cell
kidney
kidney medulla
nonhuman
priority journal
rat
Animal
Carbon Radioisotopes
Dinoprost
Dinoprostone
Kidney Medulla
Kinetics
Prostaglandin-Endoperoxide Synthase
Prostaglandins
Prostaglandins E
Prostaglandins F
Rats
Support, Non-U.S. Gov't
spellingShingle prostaglandin
15 hydroxysteroid dehydrogenase
9 ketoreductase
animal cell
kidney
kidney medulla
nonhuman
priority journal
rat
Animal
Carbon Radioisotopes
Dinoprost
Dinoprostone
Kidney Medulla
Kinetics
Prostaglandin-Endoperoxide Synthase
Prostaglandins
Prostaglandins E
Prostaglandins F
Rats
Support, Non-U.S. Gov't
Rat renal medulla possess high capacity to catabolize prostaglandins
topic_facet prostaglandin
15 hydroxysteroid dehydrogenase
9 ketoreductase
animal cell
kidney
kidney medulla
nonhuman
priority journal
rat
Animal
Carbon Radioisotopes
Dinoprost
Dinoprostone
Kidney Medulla
Kinetics
Prostaglandin-Endoperoxide Synthase
Prostaglandins
Prostaglandins E
Prostaglandins F
Rats
Support, Non-U.S. Gov't
description Prostaglandin E2 is converted to 15-keto-13,14 dihydro prostaglandin E2, 15-keto-prostaglandin F2α and 15-keto-13,14 dihydro prostaglandin F2α, by supernatants from rat kidney medulls. The main pathway for prostaglandin E2 inactivation is the combined action of 15 hydroxy dehydrogenase and Δ13 reductase enzymes. 9-Keto-reductase route constitutes a minor pathway. Prostaglandin F2α is converted into 15-keto-prostaglandin F2α, 15-keto-13,14 dihydro prostaglandin F2α and 15-keto-dihydro prostaglandin E2. Enzyme activities are time and substrate-concentration dependent. In the presence of an excess of substrate, rat renal medulls inactivates 40 and 56 times more prostaglandin E2 and prostaglandin F2α, respectively, than the amount which is released under basal conditions. These results are in contrast to the generally accepted concept that the kidney cortex is the sole site of renal prostaglandin catabolism, and suggest, for the first time, that rat renal medulls may be a key site for the modulation of prostaglandin levels in the kidney. © 1984.
title Rat renal medulla possess high capacity to catabolize prostaglandins
title_short Rat renal medulla possess high capacity to catabolize prostaglandins
title_full Rat renal medulla possess high capacity to catabolize prostaglandins
title_fullStr Rat renal medulla possess high capacity to catabolize prostaglandins
title_full_unstemmed Rat renal medulla possess high capacity to catabolize prostaglandins
title_sort rat renal medulla possess high capacity to catabolize prostaglandins
publishDate 1984
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0006291X_v124_n1_p69_Speziale
http://hdl.handle.net/20.500.12110/paper_0006291X_v124_n1_p69_Speziale
_version_ 1768542916847861760