| Effect of combination treatment of vitamin E and insulin in streptozotocin-treated rats and BB rats II. Effect on the fatty acid composition of phospholipid |
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Soon-tae Kim1, Rhin-sou Huh2 |
1Kyungsangbook Do Veterinary Service Laboratory
2College of Veterinary Medicine, Kyungpook National University |
| BB 랫드 및 streptozotocin이 투여된 랫드에서 vitamin E와 insulin 병합 투여 영향 II. 인지질의 지방산 조성에 미치는 영향 |
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김순태1, 허린수2 |
1경상북도가축위생시험소
2경북대학교 수의과대학 |
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| Abstract |
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The present study was investigated fatty acid composition of the phospholipid in the RBC membrane, liver and microsomal fraction after vitamin E and/or insulin treatment to evaluate the effect of vitamin E on the oxidative stress in STZ-treated rat and BB rat. Results obtained through the experiments were summarized as follows; 1. Effect of vitamin E and/or insulin treatment in STZ-treated rat 1) In the insulin treated group and the combination treated groups of vitamin E with insulin, body weights were increased compared to STZ-treated rat(STZ control group). Especially it was more significantly increased in the combination treated group of high dose vitamin E with insulin. 2) The composition of fatty acids of the phospholipid in RBC membrane, liver and microsomal fractions was shown a decreased C16:1, C18:1, C20:4 and an increased C16:0, C18:0, C18:2 in STZ control group compared to normal control group. In RBC membrane, liver and microsomal fractions after vitamin E with insulin treatment in STZ-treated rat, effect on the composition of fatty acids of the phospholipid was shown the result of a decreased C16:0, C18:0, C18:2 and an increased C16:1, C18:1, C20:4. 3) Hemolysis rate of the RBC to $H_2O_2$ was increased in the STZ control group and it was decreased below the hemolysis level of normal control group by vitamin E treatment. 2. Effect of vitamin E and/or insulin treatment in BB rat 4) Only in microsomal fraction, fatty acid composition was different between insulin treatment group and vitamin E with insulin treatment group. It was increased C16:0 and C18:1, and decreased C18:0 and C18:2 in vitamin E with insulin treatment group: But C20:4 was not different in two groups. These results suggest that the combination treatment of vitamin E and insulin could prevent the oxidative change of fatty acids in P-lipid of the RBC membrane, liver and microsomal fraction in STZ-treated rats and BB rats. |
| Key Words:
streptozotocin, fatty acid, arachidonic acid, BB rat |
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