In conscious mammals including humans, the neurohumoral and hemodynamic responses
to progressive acute hypovolemia have two distinct phases. There is an initial arterial …

The haemodynamic response to acute central hypovolaemia consists of two phases. During
phase I, arterial pressure is well maintained in the face of falling cardiac output (CO) by …

To examine the contributions of cardiopulmonary and sinoaortic baroreceptors to the
nonosmotic release of arginine vasopressin (AVP) in normal humans, we subjected nine …

The possibility that mechanisms secondary to the increased ventilation may contribute
significantly to the circulatory responses to systemic hypoxia was explored in anesthetized …

618 ROGER HAINSWORTH Volume 71 sion of fluids, led to a reflex tachycardia. A
mechanism for this response was subsequently described by Linden and Kappagoda (see …

To systemically evaluate the effects of acute hypoxemia and hypercapnic acidosis on the
sympathetic nervous system, five unanesthetized mongrel dogs were studied during acute …

1. In rats anaesthetized with Saffan, we have further analysed the respiratory, cardiac and
regional vascular responses induced by 3 min periods of graded hypoxia (breathing 15, 12 …

The purpose of this study was to determine the effects of sustained unloading of
baroreceptors in humans. The regional hemodynamic responses to lower body negative …

We studied the role of arterial and cardiac baroreceptors on mean arterial pressure (MAP)
and release of arginine vasopressin (AVP) and plasma renin activity (PRA) during …

We have described a rat model that responds to chronic (8 h/day, 35 days) repetitive
nonapneic episodic (cycled every 30 s) hypocapnic hypoxia with sustained increase in …