To examine whether the impacts of hypoxia on autonomic regulations involve the phasic
modulations as well as tonic controls of cardiovascular variables, heart rate, blood pressure …

The mechanisms controlling cardiovascular responses to hypoxia are poorly understood.
We studied effects of parasympathetdc blockade by atropine (Px) and sympathectomy by …

Chronic intermittent hypoxia (CIH) contributes to the development of hypertension in patients
with obstructive sleep apnea and animal models. However, the early cardiovascular …

Bao, Gang, Preet M. Randhawa, and Eugene C. Fletcher. Acute blood pressure elevation
during repetitive hypocapnic and eucapnic hypoxia in rats. J. Appl. Physiol. 82 (4): 1071 …

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

Normobaric hyperoxia decreases heart rate (HR) in humans and animals. This study
explored the mechanisms of hyperoxic bradycardia by examining its response time …

Hemodynamics and myocardial contractility were evaluated in five unanesthetized calves
during acute hypocapnic and isocapnic hypoxia and during acute hypocapnic hypoxia with …

Hypoxia increases heart rate (HR) in humans by sympathetic activation and vagal
withdrawal. However, in anaesthetized dogs hypoxia increases vagal activity and reduces …

The role of the sympathetic nervous system in the systemic hemodynamic and regional
blood flow responses to hypoxia was studied in awake dogs by preexposing the animals to …

Key points In the present study, we provide evidence for divergent physiological responses
to moderate compared to severe hypoxia, addressing an important knowledge gap related …