A biphasic response of urinary prostaglandin E2 excretion to water deprivation in conscious diabetes insipidus Brattleboro rats.

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J K Kanters, N H Holstein-Rathlou, P Christensen, P P Leyssac

The effects of water deprivation on the urinary excretion rate of prostaglandin E2 (PGE2) were examined in conscious Brattleboro rats. In order to study the time course of the changes in the PGE2 excretory rate, urine was collected in 6 periods, Control: 0-1 hour (h.). 1: 3-4.5 h., 8-10 h., III: 12-15 h., IV: 24-28 h. and V: 32-36 h. after removal of water and food. It was found that the PGE2 excretion rate changed in a biphasic pattern. During the first 2 experimental periods it increased. Thereafter it decreased towards the control value. There was an increase in PGE2 excretion with urinary flows down to 3 microliter/(min*100 g b. wt). At further reductions in urinary flow rate, PG excretion decreased towards basal levels.
Original languageEnglish
JournalProstaglandins, Leukotrienes & Essential Fatty Acids
Volume35
Issue number2
Pages (from-to)85-9
Number of pages4
ISSN0952-3278
Publication statusPublished - 1989

Bibliographical note

Keywords: Animals; Diabetes Insipidus; Dinoprostone; Male; Rats; Rats, Brattleboro; Time Factors; Urodynamics; Vasopressins; Water Deprivation

ID: 8440060