Novel mechanisms of sympathetic regulation in chronic heart failure

IH Zucker - Hypertension, 2006 - Am Heart Assoc
receptor antisense oligonucleotide administration into the cerebral ventricles reduced
baseline sympathetic nerve activity in rats with CHF while having no effect in normal rats. 36 …

AT1 receptor mRNA antisense normalizes enhanced cardiac sympathetic afferent reflex in rats with chronic heart failure

GQ Zhu, L Gao, Y Li, KP Patel… - American Journal of …, 2004 - journals.physiology.org
Previous studies showed that the cardiac sympathetic afferent reflex (CSAR) is enhanced in
dogs and rats with chronic heart failure (CHF) and that central ANG II type 1 receptors …

The regulation of sympathetic outflow in heart failure: the roles of angiotensin II, nitric oxide, and exercise training

IH Zucker, W Wang, RU Pliquett… - Annals of the New …, 2001 - Wiley Online Library
Sympatho‐excitation is a hallmark of the chronic heart failure (CHF) state. It has long been
assumed that this sympatho‐excitation is mediated by a reduction in sensory input from …

Augmented input from cardiac sympathetic afferents inhibits baroreflex in rats with heart failure

L Gao, HD Schultz, KP Patel, IH Zucker, W Wang - Hypertension, 2005 - Am Heart Assoc
It has been established that the baroreflex is markedly decreased in chronic heart failure
(CHF). Our recent study has indicated that activation of the cardiac sympathetic afferent …

Angiotensin II enhances baroreflex control of sympathetic outflow in heart failure

H Murakami, JL Liu, IH Zucker - Hypertension, 1997 - Am Heart Assoc
Enhanced sympathetic outflow is seen in both patients with congestive heart failure and
animals with experimental heart failure. In a previous study, we demonstrated that the …

Angiotensin II–triggered p44/42 mitogen-activated protein kinase mediates sympathetic excitation in heart failure rats

SG Wei, Y Yu, ZH Zhang, RM Weiss, RB Felder - Hypertension, 2008 - Am Heart Assoc
Angiotensin II (Ang II), acting via angiotensin type 1 receptors in the brain, activates the
sympathetic nervous system in heart failure (HF). We reported recently that Ang II stimulates …

Enhanced angiotensin-mediated excitation of renal sympathetic nerve activity within the paraventricular nucleus of anesthetized rats with heart failure

H Zheng, YF Li, W Wang… - American Journal of …, 2009 - journals.physiology.org
Chronic heart failure (HF) is characterized by increased sympathetic drive. Enhanced
angiotensin II (ANG II) activity may contribute to the increased sympathoexcitation under HF …

ANG II and baroreflex function in rabbits with CHF and lesions of the area postrema

JL Liu, H Murakami, M Sanderford… - American Journal …, 1999 - journals.physiology.org
Blockade of the angiotensin II (ANG II) type 1 receptor (AT1) has been shown to restore
baroreflex sensitivity in rats and rabbits with experimental chronic heart failure (CHF) …

Prevention of sympathetic and cardiac dysfunction after myocardial infarction in transgenic rats deficient in brain angiotensinogen

H Wang, BS Huang, D Ganten, FHH Leenen - Circulation research, 2004 - Am Heart Assoc
To provide evidence for the role of angiotensin II locally produced in the brain in the
development of sympathetic hyperactivity and heart failure after myocardial infarction (MI) …

Blockade of AT1 receptors enhances baroreflex control of heart rate in conscious rabbits with heart failure

H Murakami, JL Liu, IH Zucker - American Journal of …, 1996 - journals.physiology.org
Because the renin-angiotensin system is activated in heart failure, we hypothesized that
angiotensin II (ANG II) plays a role in altering baroreflex sensitivity in the setting of heart …