Artificial urinary bladder - focal technical challenges

2009 ◽  
pp. 189-191
Author(s):  
M. Roth ◽  
D. Kirchleitner ◽  
D. Jocham ◽  
H. Wassermann
Keyword(s):  
Urinary Bladder ◽  
Technical Challenges

Effect of verapamil on cytoplasmic distribution of granules and microfilaments in amphibian urinary bladder

1988 ◽  
Vol 46 ◽  
pp. 324-325
Author(s):  
A.J. Mia ◽  
L.X. Oakford ◽  
T. Yorio
Keyword(s):  
Urinary Bladder ◽  
Water Flow ◽  
Morphological Changes ◽  
Granular Cell ◽  
Cytosolic Calcium ◽  
Calcium Storage ◽  
Amphibian Urinary Bladder ◽  
Vesicular Membrane ◽  
High Concentrations ◽  
Cytoskeletal System

The amphibian urinary bladder has been used as a ‘model’ system for studies of the mechanism of action of antidiuretic hormone (ADH) in stimulating transepithelial water flow. The increase in water permeability is accompanied by morphological changes that include the stimulation of apical microvilli, mobilization of microtubules and microfilaments and vesicular membrane fusion events . It has been shown that alterations in the cytosolic calcium concentrations can inhibit ADH transmembrane water flow and induce alterations in the epithelial cell cytomorphology, including the cytoskeletal system . Recently, the subapical granules of the granular cell in the amphibian urinary bladder have been shown to contain high concentrations of calcium, and it was suggested that these cytoplasmic constituents may act as calcium storage sites for intracellular calcium homeostasis. The present study utilizes the calcium antagonist, verapamil, to examine the effect of calcium deprivation on the cytomorphological features of epithelial cells from amphibian urinary bladder, with particular emphasis on subapical granule and microfilament distribution.

Role of PKC isozymes in water transport in toad urinary bladder

1991 ◽  
Vol 49 ◽  
pp. 302-303
Author(s):  
A.J. Mia ◽  
L.X. Oakford ◽  
T. Yorio
Keyword(s):  
Urinary Bladder ◽  
Apical Membrane ◽  
Membrane Surface ◽  
Protein A ◽  
Cell Types ◽  
Leukemic Cells ◽  
Toad Urinary Bladder ◽  
Pkc Isozymes ◽  
Antibody Labeling

Protein kinase C (PKC) isozymes, when activated, are translocated to particulate membrane fractions for transport to the apical membrane surface in a variety of cell types. Evidence of PKC translocation was demonstrated in human megakaryoblastic leukemic cells, and in cardiac myocytes and fibroblasts, using FTTC immunofluorescent antibody labeling techniques. Recently, we reported immunogold localizations of PKC subtypes I and II in toad urinary bladder epithelia, following 60 min stimulation with Mezerein (MZ), a PKC activator, or antidiuretic hormone (ADH). Localization of isozyme subtypes I and n was carried out in separate grids using specific monoclonal antibodies with subsequent labeling with 20nm protein A-gold probes. Each PKC subtype was found to be distributed singularly and in discrete isolated patches in the cytosol as well as in the apical membrane domains. To determine if the PKC isozymes co-localized within the cell, a double immunogold labeling technique using single grids was utilized.

Prostatic Artery Embolization: Equipment, Procedure Steps, and Overcoming Technical Challenges

2020 ◽  
Vol 23 (3) ◽  
pp. 100691
Author(s):  
Francisco Cesar Carnevale ◽  
André Moreira de Assis ◽  
Airton Mota Moreira
Keyword(s):  
Artery Embolization ◽  
Prostatic Artery Embolization ◽  
Technical Challenges ◽  
Prostatic Artery

1199: Chronic Ischemia of the Urinary Bladder Causes Luts in Elderly Women and Men

2007 ◽  
Vol 177 (4S) ◽  
pp. 395-396
Author(s):  
Germar M. Pinggera ◽  
Leo Pallwein ◽  
Ferdinand Frauscher ◽  
Michael Mitterberger ◽  
Fritz Aigner ◽  
...  
Keyword(s):  
Urinary Bladder ◽  
Elderly Women ◽  
Chronic Ischemia

777: Tissue Microarray Analysis of pAkt, PTEN and L-Plastin in Urinary Bladder Cancer

2005 ◽  
Vol 173 (4S) ◽  
pp. 211-211
Author(s):  
Loleta D. Harris ◽  
Tomasz Tuziak ◽  
Jorge De Lo Cerda ◽  
Anita L. Sabichi ◽  
Ying Yang ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Urinary Bladder ◽  
Tissue Microarray ◽  
Microarray Analysis ◽  
Urinary Bladder Cancer ◽  
Tissue Microarray Analysis

1210: Reduced Activity of Afferent Neurons Innervating Urinary Bladder in Rats with Dibetic Cystopathy

2005 ◽  
Vol 173 (4S) ◽  
pp. 328-328
Author(s):  
Yukio Hayashi ◽  
Kazumasa Torimoto ◽  
Michael B. Chancellor ◽  
William C. de Groat ◽  
Naoki Yoshimura
Keyword(s):  
Urinary Bladder ◽  
Afferent Neurons ◽  
Reduced Activity

947: Chemopreventive Effects of COX-2 Inhibitor and Epidermal Growth Factor (EGF)-Receptor Kinase Inhibitor on Rat Urinary Bladder Tumorigenesis

2004 ◽  
Vol 171 (4S) ◽  
pp. 251-251
Author(s):  
Kazunori Hattori ◽  
Katsuyuki Iida ◽  
Akira Johraku ◽  
Sadamu Tsukamoto ◽  
Taeko Asano ◽  
...  
Keyword(s):  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Urinary Bladder ◽  
Egf Receptor ◽  
Kinase Inhibitor ◽  
Receptor Kinase ◽  
Rat Urinary Bladder ◽  
Epidermal Growth ◽  
Cox 2
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