Abstract
Aminoglycosides are widely used in the treatment of gram-negative bacterial infections. Gentamicin (GE) acts mainly in proximal tubular cells, where it is uptake via organic anion transport system and it induces a high incidence of nephrotoxicity, which is characterized by tubular necrosis leading to acute renal failure in 10 to 50% of patients. Gram-negative bacteria have lipopolysaccharide (LPS) which is an endotoxin that causes renal damage. Moreover, many patients are undergone exams using radiologic contrast, which is a risk factor to induce a hemodynamic change in the kidney and to develop acute renal failure. Intracellular calcium [Ca2+]i is involved in renal cellular injury and maybe mediate the effects provoked by these drugs. This study was performed to evaluate necrosis, apoptosis and intracellular calcium levels ([Ca2+]i) in LLC-PK1 (epithelial cell line from pig kidney) induced by GE associated with LPS and a low-osmolality media, Hexabrix (HE).
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