Search results for "Venous plexus"
showing 3 items of 3 documents
EGFL7 ligates αvβ3 integrin to enhance vessel formation
2013
Angiogenesis, defined as blood vessel formation from a preexisting vasculature, is governed by multiple signal cascades including integrin receptors, in particular integrin αVβ3. Here we identify the endothelial cell (EC)-secreted factor epidermal growth factor-like protein 7 (EGFL7) as a novel specific ligand of integrin αVβ3, thus providing mechanistic insight into its proangiogenic actions in vitro and in vivo. Specifically, EGFL7 attaches to the extracellular matrix and by its interaction with integrin αVβ3 increases the motility of EC, which allows EC to move on a sticky underground during vessel remodeling. We provide evidence that the deregulation of EGFL7 in zebrafish embryos leads …
Chronic Prostatitis and Prostatodynia: Ultrasonographic Alterations of the Prostate, Bladder Neck, Seminal Vesicles and Periprostatic Venous Plexus
1988
Transrectal ultrasonography was performed in 121 patients with the chronic prostatitis syndrome (CPS), and in 20 patients with urological pathology not involving the prostate gland. The ultrasonographic aspects of the seminal vesicles (SV) in normal subjects and in patients with the CPS are described. In the latter group, characteristic ultrasonographic patterns can often be obtained, even in patients affected by prostatodynia, in whom all the other clinical and laboratory findings were absent. They consisted of: (a) dyshomogeneous echo-structure of the prostate; (b) constant dilatation of the periprostatic venous plexus, greater than 150 mm2; (c) dilated, elongated SV, with thickening of t…
Ossovenography and Epidural Venography
1976
Henning (1940) and Ehrhardt and Kneip (1943) were the first to report injection of contrast medium into bone. In 1952 Fischgold et al. reported that contrast injections into a human spinous process resulted in an outline of the venous plexus of the attached vertebral body. In subsequent years improvements have been made which now permit contrast visualization of the venous plexuses of the entire vertebral axis.