Role of endogenous ANG II and AT1 receptors in regulating arterial baroreflex responses in newborn lambs

JL Segar, A Minnick, AM Nuyt… - American Journal of …, 1997 - journals.physiology.org
The present study was designed to test the hypothesis that endogenous angiotensin II (ANG
II) influences baroreflex control of heart rate (HR) and renal sympathetic nerve activity …

Role of endogenous ANG II on resetting arterial baroreflex during development

JL Segar, DC Merrill… - American Journal of …, 1994 - journals.physiology.org
Angiotensin II (ANG II) has been shown in adults to modulate baroreflex responses in heart
rate (HR) and sympathetic outflow. To test the hypothesis that high circulating levels of ANG …

Nitric oxide and angiotensin II regulate cardiovascular homeostasis and the arterial baroreflex control of heart rate in conscious lambs

SJ Wehlage, FG Smith - Journal of the Renin-Angiotensin …, 2012 - journals.sagepub.com
To investigate the potential role of angiotensin II (Ang II) type 1 receptors (AT1Rs) as well as
endogenously produced nitric oxide (NO) in regulating cardiovascular homeostasis during …

Arginine vasopressin modulation of arterial baroreflex responses in fetal and newborn sheep

AM Nuyt, JL Segar, AT Holley… - American Journal …, 1996 - journals.physiology.org
The present study was designed to test the hypothesis that the influence of circulating
vasopressin (AVP) on the arterial baroreflex control of renal sympathetic nerve activity …

Changes in ovine renal sympathetic nerve activity and baroreflex function at birth

JL Segar, JE Mazursky… - American Journal of …, 1994 - journals.physiology.org
The purposes of this study were to characterize the changes in renal sympathetic nerve
activity (RSNA) and baroreflex function at birth in conscious sheep. One hour after delivery …

Do angiotensin type 2 receptors modulate haemodynamic effects of type 1 receptors in conscious newborn lambs?

AE Vinturache, FG Smith - Journal of the Renin-Angiotensin …, 2014 - journals.sagepub.com
Introduction and hypothesis: It was hypothesized that in the immediate newborn period,
when the renin–angiotensin system (RAS) is activated, angiotensin type 2 receptors …

Role of brain and peripheral angiotensin II in hypertension and altered arterial baroreflex programmed during fetal life in rat

P Pladys, I Lahaie, G Cambonie, G Thibault, NLO Lê… - Pediatric …, 2004 - nature.com
Intrauterine programming of hypertension is associated with evidence of increased renin-
angiotensin system (RAS) activity. The current study was undertaken to investigate whether …

AT1 receptor block does not affect arterial baroreflex during pregnancy in rabbits

KP O'Hagan, KA Skogg… - American Journal of …, 2001 - journals.physiology.org
The role of ANG II in the arterial baroreflex control of renal sympathetic nerve activity (RSNA)
in eight term-pregnant (P) and eight nonpregnant (NP) conscious rabbits was assessed …

ANG II and baroreflex control of heart rate in embryonic chickens (Gallus gallus domesticus)

CA Mueller, WW Burggren… - American Journal of …, 2013 - journals.physiology.org
ANG II alters the short-term blood pressure buffering capacity of the baroreflex in many adult
animals. In embryonic chickens, high plasma ANG II levels contribute to baseline mean …

Dose‐dependent systemic and renal haemodynamic effects of angiotensin II in conscious lambs: role of angiotensin AT1 and AT2 receptors

ML Chappellaz, FG Smith - Experimental physiology, 2005 - Wiley Online Library
The present experiments were designed to measure the effects of acute administration of
angiotensin (ANG) II on mean arterial pressure (MAP) and renal blood flow (RBF) in …