GYY4137, a Slow-Releasing Hydrogen Sulfide Donor, Ameliorates Renal Damage Associated with Chronic Obstructive Uropathy
2016
Purpose: Chronic obstructive uropathy can cause irreversible kidney injury, atrophy and inflammation, which can ultimately lead to fibrosis. Epithelial-mesenchymal transition is a key trigger of fibrosis that is caused by up-regulation of TGF-β1 (transforming growth factor-β1) and ANGII (angiotensin II). H2S is an endogenously produced gasotransmitter with cytoprotective properties. We sought to elucidate the effects of the slow-releasing H2S donor GYY4137 on chronic ureteral obstruction and evaluate the potential mechanisms.Materials and Methods: Following unilateral ureteral obstruction male Lewis rats were given daily intraperitoneal administration of phosphate buffered saline vehicle (obstruction group) or phosphate buffered saline plus 200 μmol/kg GYY4137 (obstruction plus GYY4137 group) for 30 days. Urine and serum samples were collected to determine physiological parameters of renal function and injury. Kidneys were removed on postoperative day 30 to evaluate histopathology and protein expression. ...
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