학술논문
Benzoyl peroxide가 흰쥐의 지질과산화현상에 미치는 영향
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- 영문명
- Effect of Benzoyl Peroxide on the Activity of Drug-metabolizing Enzyme System and Lipid Peroxidation in Rats
- 발행기관
- 대한약리학회
- 저자명
- 이향우(H.W. Lee) 이규순(K.S. Rhee) 홍사오(S.U. Hong)
- 간행물 정보
- 『대한약리학잡지』제18권 제1호, 55~64쪽, 전체 10쪽
- 주제분류
- 의약학 > 기타의약학
- 파일형태
- 발행일자
- 1982.06.30
4,000원
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국문 초록
영문 초록
Lipid peroxidation is the reaction of oxidative deterioration of polyunsaturated lipids and this peroxidation involves the direct reaction of oxygen and lipid to form free radical intermediates, which can lead to autocatalysis. As results of the extensive studies on the lipid peroxidation by many authors, the relationship between lipid peroxidation and the drug metabolizing system as well as the actions of free radicals on the peroxidation was reasonably well known. For a long time, the mechanism of hepatotoxicity of CCl4 was not clearly understood. However, it is now quite well established that CCl4 is activated in vivo to a free radical which is a highly reactive molecule. Therefore, lipid peroxidation which induces the reduction of cytochrome P-450 and aminopyrine demethylase activity is known as decisive event of CCl4 hepatotoxicity. On the other hand, it was also reported that singlet molecular oxygen produces lipid peroxidation in liver microsomes. In this study the effects of benzoyl peroxide on the lipid peroxidation and drug-metabolizing enzyme were examined. Benzoyl peroxide mixed with starch and phosphates etc. is usually used as a food additive for flour bleaching and maturing purpose because of its oxidative property. Albino rats were used for the experimental animals. Benzoyl peroxide was suspended in soybean oil and sesame oil and administered intraperitoneally or orally. TBA value and aminopyrine demethylase activity were determined in liver microsomal fraction and serum. The results were summerized as following. 1) Body weights of animals administered benzoyl peroxide suspension were decreased while that of oil administered group were increased. 2) The activity of aminopyrine demethylase was generally decreased in animals administered oil suspension of benzoyl peroxide. Furthermore, the marked reduction of the enzyme activity was observed in animals administered benzoyl peroxide intraperitoneally. 3) Generally, microsomal TBA values as well as serum TBA were significantly elevated in benzoyl peroxide group in comparison with the control group. However, the more remarkable increase of serum TBA than microsomal TBA was observed in animals administered orally for 6 days. 4) Specifically, the changing pattern of TBA value was notable in serum rather than in liver microsome by intraperitoneal administration of benzoyl peroxide.
목차
키워드
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- Benzoyl peroxide가 흰쥐의 지질과산화현상에 미치는 영향
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