نتایج جستجو برای: vasomotor reactivity
تعداد نتایج: 58494 فیلتر نتایج به سال:
OBJECTIVES This study sought to examine effect of vitamin C, an antioxidant, on the abnormal vasomotor reactivity in spasm coronary arteries. BACKGROUND Oxygen free radicals generated in the arterial walls have been shown to cause endothelial vasomotor dysfunction. METHODS Responses of the epicardial arterial diameters of the left coronary arteries to the intracoronary infusion of acetylcho...
Regional cerebral blood flow and vasomotor reactivity were measured in 33 patients with surgically remediable hemispheric ischemia by the 133Xe inhalation method prior to superficial temporal to middle cerebral artery (STA-MCA) by-pass. Thirteen patients also underwent LCBF and L lambda measurements by the stable xenon CT method for comparison. Twenty-four had proximal occlusion of one or both ...
The relationship between neurophysiological and cerebrovascular-metabolic findings in patients affected by severe cerebrovascular deficits was investigated by comparing magnetoencephalographic (MEG-evoked fields) and blood oxygen level-dependent functional MRI (BOLD fMRI) responses to median nerve electric stimulation. Despite the use of identical stimuli, the two techniques elicited always-det...
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