The aim of the study was to determine if any sphincter-like areas are present in the gastrointestinal tract arteries of domestic cattle, and to establish their morphology and topography. It was achieved by analysing the celiac trunks of seven cows. By the means of a light microscopy evaluation, thickenings in the tunica media of the celiac artery and its primary branches were detected. Having d...

Hemodynamic factors such as low wall shear stress have been shown to influence endothelial healing and atherogenesis in stent-free vessels. However, in stented vessels, a reliable quantitative analysis of such relations has not been possible due to the lack of a suitable method for the accurate acquisition of blood flow. The objective of this work was to develop a method for the precise reconst...

STUDY DESIGN The micro-computed tomography (micro-CT) was applied to assess the effect of tetramethylpyrazine (TMP) on experimental spinal cord injury (SCI). OBJECTIVE The aim of the study was to explore the therapeutic effect of TMP on a rat SCI model using micro-CT. SUMMARY OF BACKGROUND DATA SCI is a devastating event and always accompanied by severe vascular injury. Promoting angiogenes...

Cancer growth and dissemination have been extensively studied for a long time. Nevertheless, many new observations on anatomy and histopathology of cancer events are still reported such as formation of a vasculogenic-like network inside aggressive tumors. In this research, new kinds of micro-conduits, named primo-vessels, were found inside the abdominal cavity of NCI-H460 lung cancer murine xen...

We demonstrate a laboratory method for imaging small blood vessels using x-ray propagation-based phase-contrast imaging and carbon dioxide (CO(2)) gas as a contrast agent. The limited radiation dose in combination with CO(2) being clinically acceptable makes the method promising for small-diameter vascular visualization. We investigate the possibilities and limitations of the method for small-a...

Vapour and liquid phases of a simple batch distillation may be separated theoretically at equilibrium at a certain pressure and temperature state. A small separation effect can be achieved by this, because only one equilibrium stage between liquid and vapour phase is thereby realised. Contacting again vapour and liquid flows leaving one single stage in co-current mode, no further separation eff...

MHD viscous oscillating type blood flow through lumen in arteries and varicose veins motivating to the study of disordered vessels veins. The nervous system, like other micro respiratory system is modeled geometrically shape tapered curvy walls varying cross section which new approach this problem same has advantage compared geometrical channel shapes. Blood taken as viscoelastic optically thic...

Diabetic Retinopathy-Scott et al. JOUM" haziness of the media in a large proportion of diabetics made it difficult to visualize the capillaries in this study. Although, in Fig. 6 B, an arterial injection of fluorescein has shown up zones of capillary closure alongside arteries and scattered small areas of capillary closure (Ashton, 1953), we have been able to discern this phenomenon in only thr...

AIM Micro-vascular anastomosis is a difficult art. It can be learnt and perfected only by practice using vessels of small animals in the laboratory. The purpose of the study was to practice various anastomotic techniques using rat femoral vessels and study the patency rates. MATERIAL AND METHODS Sixty-four Sprague-Dawley rats were used in the study. The following procedures were conducted on ...

Techniques for visualizing and quantifying the microvasculature of tumors are essential not only for studying angiogenic processes but also for monitoring the effects of anti-angiogenic treatments. Given the relatively limited information that can be gleaned from conventional 2-D histological analyses, there has been considerable interest in methods that enable the 3-D assessment of the vascula...