Urothelial purine release during filling of murine and primate bladders.

Urothelial purine release during filling of murine and primate bladders. Am J Physiol Renal Physiol. 2016 Jul 27;:ajprenal.00387.2016 Authors: Durnin L, Hayoz S, Corrigan R, Yanez A, Koh SD, Mutafova-Yambolieva VN Abstract During urinary bladder filling the bladder urothelium releases chemical mediators which in turn transmit information to the nervous and muscular systems to regulate sensory sensation and detrusor muscle activity. Defects in release of urothelial mediators may cause bladder dysfunctions that are characterized with aberrant bladder sensation during bladder filling. Previous studies have demonstrated release of adenosine 5'-triphosphate (ATP) from the bladder urothelium during bladder filling and ATP remains the most studied purine mediator that is released from the urothelium. However, the micturition cycle is likely regulated by multiple purine mediators as various purine receptors are found present in many cell types in the bladder wall, including urothelial cells, afferent nerves, interstitial cells in lamina propria and detrusor smooth muscle cells. Information about the release of other biologically-active purines during bladder filling is still lacking. Decentralized bladders from C57BL/6 mice and Cynomolgus monkeys (Macaca fascicularis) were filled with physiological solution at different rates. Intraluminal fluid was analyzed by high performance liquid chromatography with fluorescence detection (HPLC-FLD) for...
Source: Am J Physiol Renal P... - Category: Urology & Nephrology Authors: Tags: Am J Physiol Renal Physiol Source Type: research