The aim of the present study was to examine the roles of the angiotensin II receptor subtypes, AT(1) and AT(2), in ovulation, and to evaluate the contribution of angiotensin II-mediated pathways in regulation of ovarian blood flow. The AT(1)-specific antagonist, losartan, was administered alone or in combination with the AT(2)-specific antagonist, PD123319, to preovulatory rat ovaries perfused ...

In the present study, we assessed the role of tissue angiotensin-converting enzyme as a determinant of intrarenal hemodynamics by using the angiotensin-converting enzyme inhibitor trandolaprilat and the angiotensin II receptor antagonist losartan. Afferent and efferent arteriolar diameters were measured with computer-assisted vessel imaging in isolated perfused hydronephrotic rat kidneys. In re...

This study examines the effects of angiotensin II on hypertrophy and proliferation of aortic smooth muscle cells from spontaneously hypertensive and Wistar-Kyoto rats and the receptor subtypes mediating these effects. In quiescent confluent cells, angiotensin II induced a dose-dependent increase in thymidine and leucine incorporation without stimulating cell proliferation. In nonconfluent cells...

BUMC PROCEEDINGS 2003;16:123–126 The angiotensin II receptor blockers (ARBs) represent a newer class of antihypertensive agents. Their mechanism of action differs from that of the angiotensin-converting enzyme (ACE) inhibitors, which also affect the renin-angiotensin system. The ARBs were developed to overcome several of the deficiencies of ACE inhibitors: competitive inhibition of ACE results ...

Introduction. Overdose with the calcium channel blocker amlodipine can cause profound hypotension that may be exacerbated by the concurrent ingestion of an angiotensin II receptor antagonist. Best management of such overdoses is uncertain although the use of hyperinsulinaemia-euglycaemia (HIE) has been recommended. Case report. We report a case of mixed amlodipine and losartan overdose in a 50-...

The study by Lesimple and Hausberger (2014) compared in 26 cases the decoding of wellbeing of the horse by a caretaker through a questionnaire on the one hand and an experienced outside observer on the other hand. Stereotypic or abnormal repetitive behavior (SB/ARB) is what they study under the broad umbrella of wellbeing. They reported that there was a huge discrepancy in the prevalence of SB/...

This study examined whether angiotensin II (Ang II) blockers [Ang II type I receptor antagonist, Ang II type II receptor antagonist, and angiotensin converting enzyme (ACE) inhibitor] could reduce hepatic injury and improve regeneration in reduced-size orthotopic liver transplantation (ROLT) and whether the beneficial effects of ischemic preconditioning (PC) in ROLT could be explained by change...

The effect of l-Asn-8-Ak-angiotensin II (Asn-Arg-Val-Tyr-Val-His-Pro-Ala) on the vascular action of angiotensin II was studied with rabbit aortic strips, pithed rats, and conscious rats. Dose-response (contraction) curves for angiotensin II on rabbit aortic strips shifted progressively to the right with increasing bath concentrations of l-Asn-8-Ala-angiotensin II. The pA2 value (an indication o...