Jasperse, Jeffrey L., and M. Harold Laughlin. Vasomotor responses of soleus feed arteries from sedentary and exercise-trained rats. J. Appl. Physiol. 86(2): 441–449, 1999.— Our goals were to determine the nature of endotheliumdependent and -independent vascular responses in isolated soleus feed arteries (SFA) and to test the hypothesis that these responses would be altered by exercise training....

The actions of oxygen in the body are extremely complex, and are also involved in various signalling pathways. Hyperbaric oxygen is known to contribute to the improvement of conditions where tissue circulation is suboptimal, and has considerable usage in different treatment protocols and experimental investigations. However, the precise mechanism by which hyperbaric oxygen changes the functioni...

Background: An imbalance of the cerebrovascular response during functional activation of the brain has been postulated as a factor in the pathophysiology of migraine. The purpose of this study was to determine the transcranial doppler sonography (TDS) diagnostic value for the cerebral flow velocity changes in the interictal phase of classic migraine. Methods: This study was carried out on 46 pa...

Background: Autonomic neuropathy and vital organ dysfunctions are the known complications in type 2 diabetes Mellitus (DM). Genetic endowments involving individuals make subtle differences in physiological systems, particularly at the time of sickness. Hence, the presented study was designed to evaluate the vasomotor system in healthy people and type 2 DM cases for determining any functionality...

In order to evaluate separately changes in vascular tone occurring in arteries and veins, we measured pulmonary capillary red blood cell (RBC) concentration under zone II (waterfall) conditions in isolated dog lungs rapidly frozen with Freon 12. The lungs were frozen while being perfused from artery to vein and from vein to artery breathing normal and hypoxic gas mixtures and during infusions o...

INTRODUCTION Cerebral vasomotor reactivity (VMR) represents an autoregulatory response of the arterial trunks on the specific vasoactive stimuli, most commonly CO2. OBJECTIVE The aim of this retrospective study was to compare VMR in high-grade symptomatic (SCAS) and asymptomatic carotid stenosis (ACAS), using the apnea test to evaluate the hemodynamic status. METHODS The study included 50 p...

BACKGROUND AND PURPOSE Reduction of cerebral blood flow and vasomotor reactivity (VMR) are thought to play an important role in the pathogenesis of cerebral microangiopathy. The aim of our study was to determine whether near-infrared spectroscopy (NIRS) can detect a reduced VMR in patients with microangiopathy, whether NIRS reactivities correlate with VMR assessed by transcranial Doppler sonogr...

BACKGROUND Cerebral vasomotor reactivity (CVR) is an index of cerebrovascular dilatory capacity which can readily be assessed using trans-cranial Doppler ultrasound. Impaired CVR is associated with elevated risk of stroke. We performed a randomized, double-blind placebo-controlled trial to investigate the effect of two HRT preparations upon CVR. METHODS We examined middle cerebral artery mean...