Both hypoxia and carbon dioxide increase cerebral blood flow (CBF), and their effective
interaction is currently thought to be additive. Our objective was to test this hypothesis. Eight …

Cyclic intermittent hypoxia (IH) increases cerebral blood velocity. This enhanced velocity
augments the commensurate shear stimulus and may subsequently increase …

The distribution of regional cerebral blood flow (rCBF) within the cerebral hemispheres of
rats was investigated following an hypoxic-ischemic insult consisting of a 30-minute …

Previous studies have demonstrated a significant pressure gradient from carotid artery to
pial or middle cerebral arteries. This pressure gradient suggests that large cerebral arteries …

During arterial hypoxia the brain blood flow rate increases when oxygen tensions below
approximately 60 mmHg are attained (Betz, 1972; Grote and Schubert, 1982; Kuschinsky …

The fractional increase in cerebral blood flow (CBF) velocity (VCBF) from the control value
with 5-min steps of isocapnic hypoxia and hyperoxic hypercapnia was measured by …

This study describes a protocol to determine acute cerebrovascular and ventilatory (AHVR)
responses to hypoxia. Thirteen subjects undertook a protocol twice, 5 days apart. The …

Reactive hyperemia has been characterized in many vascular beds, but little is known about
quantitative characteristics of reactive hyperemia in the cerebral circulation. We measured …

METHODS Nineteen mongrel dogs, weighing between 8.5 and I 2.9 kg and unselected as to
age and sex, were used in this investigation. Cerebral Blood Flow. The nitrous oxide and …

Non‐technical summary Brain blood flow increases during the first week of living at high
altitude. We do not understand completely what causes the increase or how the factors that …