introduction:adenosine as a potent vasodilator has physiological role in regulation of regional cerebral blood flow (rcbf). metod: laser-dِoppler flowmetry technique was used to study pial vessels blood flow responses to adenosine receptors agonists and antagonist. male sprague dawley rats (250-350g) that were housed in standard conditions, were anesthetized with urethane (1.5g/kg). adenosine (g...

ndometrial vasculature has been shown to play an important role in the early endometrial response to the implanting blastocyst, and vascular changes may contribute to uterine receptivity . the aim of this study was to investigate the role of endometrial and subendometrial vascularity and thickness in uterine receptivity in infertile women treated with assisted reproductive technologies (art). a...

The paper presents the data on hemorhelogical parameters of blood of patients suffering from pulmonary tuberculosis. These parameters are the crucial parameters, which adversely affect many vital functions of human body. A simple open capillary tube method is employed for the determination of characteristic velocity, volume flow rate, viscosity and surface tension. The coefficient of viscosity ...

The purpose of this paper was to investigate the hemodynamic parameters associated with the blood flow in failed coronary venous bypass grafts using a computational fluid dynamics (CFD) technique. A narrowed section creates bypass graft constriction and disturbed flow. This change of the flow direction alters significantly the local hemodynamic parameters. In this paper, a patient specific thre...

the cytotoxic activity of natural killer cells is usually tested by radioactive assay csi cr release assay), which detects the release of cytoplasmic contents after plasma membrane disintegration of dying cells. in contrast to this indirect evaluation of cytotoxicity, the assessment of cell damage by flow cytometry aims to provide a more exact characterization of the death pathway via detection...

Optical techniques including fluorescence lifetime spectroscopy have demonstrated potential as a tool for study and diagnosis of arterial vessel pathologies. However, their application in the intravascular diagnostic procedures has been hampered by the presence of blood hemoglobin that affects the light delivery to and the collection from the vessel wall. We report a computational fluid dynamic...

OBJECTIVE To assess the effect of nebivolol, a highly selective third generation beta1-adrenoceptor antagonist with an endothelium-dependent vasodilatory action, on smoking-induced endothelial dysfunction. RESEARCH DESIGN AND METHODS This open-label study examined the effect of 14 daily doses of 5 mg nebivolol on forearm blood flow in 21 healthy, young, male, light smokers (< or =5 cigarettes...

INTRODUCTION Hemodynamic parameters in zebrafish receive increasing attention because of their important role in cardiovascular processes such as atherosclerosis, hematopoiesis, sprouting and intussusceptive angiogenesis. To study underlying mechanisms, the precise modulation of parameters like blood flow velocity or shear stress is centrally important. Questions related to blood flow have been...