Journal of Nutrition and Health

  • 제29권7호
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  • Pages.721-728
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  • 1996
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  • 2288-3886(pISSN)
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  • 2288-3959(eISSN)
한국영양학회 (The Korean Nutrition Society)
권호 표지

에탄올 장기 투여에 의한 쥐 심근조직의 산화적 스트레스와 생체내 항산화 효소활성의 변화

Effect of Chronic Ethanol Administration on Oxidative Stress and Cellular Defence System in Rat Myocardium

  • 오세인 (서울대학교 의과대학 생화학교실)
  • 발행 : 1996.09.01
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초록

The level of oxidative tissue damage caused by free radicals generated from ethanol oxidation was determined in the myocardium of chronic ethanol fed-rats and the protective action of various radical scavenging enzymes was monitored, also. Adult male Sprague-Dawley rats were given ethanol in an amount of 36% of total calories via Lieber-DeCarli liquid diet for 6 weeks. Control group was pair-fed with the diet containing isocaloric amount of dextrin-maltose instead of ethanol. Chronic ethanol administration resulted in the increased amount of myocardial thiobarbituric acid reactive substance(TBARS), th parameter of lipid peroxidation, under our experimental condition. Chronic ethanol ingestion did not cause any change in activities of either glutathione peroxidase or glutathione reductase and glucose-6-phosphate dehydrogenase were decreased after ethanol treatment. Therefore, chronic ethanol administration seemed to cause considerble changes in cellular defense function against oxidative tissue damage in rat myocardium through glutathione utilizing system and radical generation system. However the ultimate net result of chronic ethanol inestion on the myocardium of rat was the oxidative tissue damage revealed by increased TBARS content.

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