BACKGROUND AND PURPOSE Conducted vasomotor responses likely play an important role in cerebrovascular regulation, but it is unclear how these responses may be affected by ischemia. The purpose of this study was to evaluate the hypothesis that cerebral ischemia and reperfusion (I/R) alters vascular conduction in cerebral arterioles. METHODS Middle cerebral artery occlusion (MCAO) was induced b...

OBJECTIVES The effects of exercise training on LV remodelling following large anterior myocardial infarction (MI) remains controversial. Blockade of the renin-angiotensin system has been shown to prevent ventricular dilation and deleterious remodeling. We therefore tested, in a rat model of chronic MI, whether any potentially deleterious effects of exercise on post-MI remodelling could be ameli...

Diabetes mellitus is a chronic metabolic disorder and one of its major complications is diabetic retinopathy. For ophthalmological screening of diabetic retinopathy, we use mydriatic drugs for pupil dilation. As per the literature review, there is no clinical data available in Indian population for the combination of Tropicamide and Flurbiprofen. Hence, the present study was carried out in an a...

Dilation of pupil has been a major component diagnostic eye examination inOptometric practice. Although mydriatic agents are used in clinical procedures, thereis no satisfactory explanation for the preference one over another. This studycompared dilating effect three different on dark irides ofninety healthy subjects; comprising 48 males and 42 females aged 16-30 (mean age18.77±0.52) years divi...

The effect of transfusing a nonextravasating, zero-link polymer of cell-free hemoglobin on pial arteriolar diameter, cerebral blood flow (CBF), and O2 transport (CBF x arterial O2 content) was compared with that of transfusing an albumin solution at equivalent reductions in hematocrit (approximately 19%) in anesthetized cats. The influence of viscosity was assessed by coinfusion of a high-visco...

Background—Mechanisms responsible for anti-ischemic benefits of enhanced external counterpulsation (EECP) remain unknown. This was the first randomized sham-controlled study to investigate the extracardiac effects of EECP on peripheral artery flow-mediated dilation. Methods and Results—Forty-two symptomatic patients with coronary artery disease were randomized (2:1 ratio) to thirty-five 1-hour ...

Abstract. A composite dilation Parseval frame wavelet is a collection of functions generating a Parseval frame for L2(Rn) under the actions of translations from a full rank lattice and dilations by products of elements of groups A and B. A minimally supported frequency composite dilation Parseval frame wavelet has generating functions whose Fourier transforms are characteristic functions of set...

For people with hearing difficulties, following a conversation in a noisy environment requires substantial cognitive processing, which is often perceived as effortful. Recent studies with normal hearing (NH) listeners showed that the pupil dilation response, a measure of cognitive processing load, is affected by 'attention related' processes. How these processes affect the pupil dilation respon...

Previous studies showed that nitric oxide (NO) plays an important role in coronary arteriolar dilation to increases in myocardial oxygen consumption (MVO(2)). We sought to evaluate coronary microvascular responses to endothelium-dependent and to endothelium-independent vasodilators in an in vivo model. Microvascular diameters were measured using intravital microscopy in 10 normal (N) and 9 hype...