Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Effects of the Antioxidants on the Diabetic Complications

당뇨병성 합병증에 대한 항산화제 효과

  • 김진영 (건국대학교 수의과대학 내과학교실) ;
  • 이병한 (건국대학교 수의과대학 내과학교실) ;
  • 정병현 (건국대학교 수의과대학 내과학교실)
  • Published : 2001.12.01
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Abstract

These studies were performed to investigate the effect of antioxidants, melatonin (MLT) and ascorbic acid (AA), on the diabetic complications. In the experiment, twenty-four Sprague Dawley rats were divided into four groups; Group 1: no treatment (control) (n=6), Group 2: Streptozotocin (STZ; 65 mg/kg b.w. ip) treatment (n=6), Group 3: MLT (10 mg/kg b.w. ip) treatment (n=6), Group 4: ascorbic acid (AA: 40 mg/kg b.w.ip) treatment (n=6). Rats were sacrificed and collected designated samples (blood, kidney, pancreas) at the 21 days after antioxidant treatment (the 8th week after STZ injection). There was no significant change of body weight during the experiment period in the all groups. The concentration of blood glucose was decreased below 200 mg/dl in MLT. The concentration of HbA$_1$c level was decreased significantly in MLT (7.3$\pm$0.66%) compared with STZ (15.1$\pm$1.58%) (p<0.01). No significant change of SOD activity in the RBC and kidney was found in the all groups. In the pancreas, MLT (1.42$\pm$0.17 U/ml) and AA(1.65$\pm$0.16 U/ml) decreased SOD activity compared with STZ (4.10$\pm$0.27 U/ml). However, there was no significant difference among MLT and AA. The level of malondialdehyde(MDA) as an indicator of lipid peroxydation was decreased in MLT compared with STZ in the plasma, kidney and pancreas(p<0.01). These findings suggest that melatonin could prevent the complications of diabetes mellitus.

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