학술논문
취외분비선에 미치는 사염화탄소의 영향
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- 영문명
- Studies on the Effects CCl4 on Exorine Pancreas
- 발행기관
- 대한약리학회
- 저자명
- 배영숙(Young-Sook Pae)
- 간행물 정보
- 『대한약리학잡지』제11권 제1호, 47~54쪽, 전체 8쪽
- 주제분류
- 의약학 > 기타의약학
- 파일형태
- 발행일자
- 1975.06.30
4,000원
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국문 초록
영문 초록
The metabolism of many drugs and also of steroid hormones is mediated by enzymes located in the microsomal fraction in smooth surfaced endoplasmic reticulum of mammalian liver. The duration and intensity of action of many drugs are largely determined by the speed at which they are metabolized in the body. Repeated administration of phenobarbital results in the induction of enzymes that metabolize a number of drugs. Lee et al. reported that daily administration of phenobarbital in rats significantly increased the activities of amylase in the pancreatobiliary juice, but the concentration of cholate in the bile was significantly lower in the treated group than that in the control group. After animals were treated with CCl4, histological changes were shown in the endoplasmic reticulum, decreased microsomal enzyme activity and decreased hepatic protein synthesis were apparent. The purpose of the present report was to study the interaction between a microsomal-stimulating agent such as phenobarbital and a microsomal- depressing agent such as CCl4 on hepatic and pancreatic functions in rats. The results obtained are summarized as follows: 1. The mortality rate of CCl4 treated group was 34% and was decreased this figure to 15% with phenobarbital pretreatment. 2. In animals treated with phenobarbital the volume of biliary-pancreatic secretion was markedly elevated but the volume was decreased significantly in animals treated with CCl4. 3. Total bilirubin output was elevated markedly in the CCl4 treated group of rats pretreated with phenobarbital. The bilirubin concentration was increased in CCl4 treated group and decreased in the group treated phenobarbital alone. 4. The concentration and total output of cholate in the bile were significantly lower in the all experimental group than control group. 5. In the animals treated with phenobarbital alone and phenobarbital plus CCl4, the activity of lipase in pancreatobiliary juice was elevated, while in the animals treated with CCl4 alone no change was observed. 6. The activity of amylase in the pancreatobiliary juice was decreased in the CCl4 treated group, but elevated markedly in phenobarbital group and also elevated in phenobarbital-CCl4 group. By the above results, it is concluded, when the liver was damaged by CCl4, the exocrine function of pancreas and liver was decreased simultaneously. However, in the animals pretreated with phenobarbital, the toxicity of CCl4 on the liver and pancreas was reduced.
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