The juxtaglomerular apparatus is an anatomic structure which links the distal end of the thick ascending limb at the macula densa with the glomerular vascular pole. Specialized interstital cells and renin containing granular cells are located in the vascular hilum at this site. Evidence has accumulated that this connection is critical for local regulation of renin secretion and glomerular vascu...

an occlusive, diffuse, generalized lesion in medium and small-sized arteries, with particular involvement of the heart, skin, gastrointestinal tract, kidneys, pancreas, and liver. It showed a fibrous thickening of the intima; the internal lamina elastica, the media, and the adventitia remained unchanged. A pathogenic interpretation of the vascular lesions is attempted, and their asynchronism in...

The IEEE 802.16e Broadband Wireless Access (BWA) system is developed to cater for rapidly growing requirement for multimedia wireless services. Since the heterogeneous services provided by the system are connection-oriented, Call Admission Control and required resource reservation mechanisms are needed to achieve desired quality of service (QoS). Traditional admission control algorithms are bas...

A proper geometric model of the vascular systems in the liver is crucial for modeling blood flow, the connection between the organ and the rest of the organism. In vivo imaging does not provide sufficient details, so an algorithmic concept for extending measured vascular tree data is needed such that geometrically realistic structures can be generated. We develop a quantification of similarity ...

Abstract Pulmonary agenesis is a rare malformation associated with congenital heart disease and may lead to life-threatening condition death without pre-planned surgical medical support. We report an unusual case of unilateral pulmonary in combination total anomalous venous connection, complete vascular ring, retroaortic, retroesophageal innominate vein, secondary atrial septal defect, which wa...

Pulmonary sequestration refers to lack of normal airway connection and aberrant vascular supply, and it may be either intralobar or extralobar. Bronchial atresia involving the lower lobes, especially the left lower lobe, is often associated with aberrant systemic arterial connection, forming an “intralobar sequestration” in which a region of parenchyma is functionally isolated from the remainde...

BACKGROUND VE-cadherin is an endothelial specific, transmembrane protein, that clusters at adherens junctions where it promotes homotypic cell-cell adhesion. VE-cadherin null mutation in the mouse results in early fetal lethality due to altered vascular development. However, the mechanism of action of VE-cadherin is complex and, in the mouse embryo, it is difficult to define the specific steps ...