Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Antioxidant Effects of Ascorbic Acid on Renal-Ischemia Reperfusion Injury in Rabbit Model

  • Kim, Jong-Man (College of Veterinary Medicine, Chungnam National University) ;
  • Lee, Jae-Yeon (College of Veterinary Medicine, Chungnam National University) ;
  • Kim, Duck-Hwan (College of Veterinary Medicine, Chungnam National University) ;
  • Jeong, Seong-Mok (College of Veterinary Medicine, Chungnam National University) ;
  • Park, Chang-Sik (Division of Animal Science & Resources, Research Center for Transgenic Cloned Pigs, Chungnam National University) ;
  • Kim, Myung-Cheol (College of Veterinary Medicine, Chungnam National University)
  • Published : 2008.06.30
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Abstract

Renal ischemia-reperfusion (I/R) injury is great clinical important because viability of the organ depends on the tolerance to ischemia-reperfusion injury, an inevitable processing during surgery. The purpose of this study was to investigate the effects of premedicated ascorbic acid alone in I/R injury model induced by cross-clamping of renal vessels. In the rabbit models, 2-4 kg New Zealand white rabbits were subjected to 30 minutes of warm unilateral renal ischemia followed by removal of contralateral kidney and then divided into five groups, control (2) arid treatment groups (3). In control group 1, the rabbits only received right nephrectomy. In control group 2, the rabbits received I/R on left kidney after the right nephrectomy. In treatment group 1, the rabbits received ascorbic acid 50 mg/kg IV before the operation. In treatment group 2, the rabbits received ascorbic acid 100 mg/kg IV before the operation. In treatment group 3, the rabbits received ascorbic acid 200 mg/kg IV before the operation. Blood samples were collected from these rabbits for measurement of kidney function tests at the 0, 1 st, 3rd and 7th day and antioxidant enzyme( SOD, GSHPx, CAT) at 24 hours. Kidney function tests (serum creatinine and BUN) showed a significant difference between group 2 and group 4, 5. Activity of antioxidant enzymes in plasma were significant decrease in group 4, 5 compare to group 2. The result of this study suggested that the exogenous ascorbic acid had a role of attenuation of renal I/R injury in rabbit model.

Keywords

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