Abstract
In order to assess the potential nephrotoxicity of antibiotics, effects of these agents on rat kidney lysosomal membrane were investigated in various conditions. Antibiotics were given to Wistar rats for 5 successive days. After nephrectomy rat lysosomes were separated and their membrane stability was examined by measuring the activities of acid-phosphatase. In addition, after separation of lysosomes from normal untreated Wistar rats, antibiotics were added in the incubation system to assess the in vitro effect of antibiotics. Effects of renal ischemia and the lysosomal membrane stabilizer (cortisol) were also examined. Aminoglycosides antibiotics (streptomycin, kanamycin, gentamycin), doxytetracycline, chloramphenicol, and cephems (cephalothin, cephaloridine, ceftezol, latamoxef) were used for this purpose. It was clearly pointed out that aminoglycosides interfered with the lysosomal stability in vivo and in vitro. After a 60 minutes ischemia of the rat kidneys by clamping the renal arteries, effects of antibiotics on administration of 5 successive days on rat lysosomal stability were investigated. It was demonstrated that aminoglycosides also made the lysosomal membrane more unstable. Effects of the lysosomal stabilizer, cortisol, on rat kidney lysosomes were examined. Use of cortisol simultaneously with an antibiotic was more effective than that before and after it.
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