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논문 기본 정보

자료유형
학술저널
저자정보
임흥빈 (한국인삼연초연구소 화학부) 이영구 (한국인삼연초연구소 화학부) 이동욱 (한국인삼연초연구소 화학부) 김용태 (한국인삼연초연구소 화학부)
저널정보
한국연초학회 한국연초학회지 한국연초학회지 제13권 제1호
발행연도
1991.1
수록면
19 - 26 (8page)

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Ames test using special strains which are histidine requiring mutant of Salmonella typhimufium , is widely utilized as short-term bioassay to evaluate the genotoxicity of chemicals. This method requires the liver microsome(5-9 fraction) to provide mammalian metabolism of the compounds, Therefore, the mutagenic potency of the chemicals is affected by not only the intrinsic properties of them but also the efficiency of the in vitro microsomal activation system. For this reason, the complex mixtures such as environmental pollutants from occupational sources, natural products or cigarette smoke condensates(CSC) , might be often appeared the false results. Induction of sister chromatid exchange(SCE) in cultured cells is known as another sensitive and powerful tool for the measurement of genotoxicity and the method has also an advantage which is able to apply to the in vitro and in vivo systems. In the present study, the inducibilities of revertant colonies in tester strain TA98 and SCE in human Iymphocytes by positive controls and total particulated materials(TPM) obtained from various brand(domastic and imported) cigarettes were compared in order to investigate whether the results in Ames test are in agreement with those in SCE analysis. The mutagenic activities of well known mutagens such as B(a)P showed excellent dose-response in the both methods although the induction mechanism was different each other, but cyclophosphamide resulted such effect only in SCE analysis. Most TPM tested showed a similar pattern in the mutagenic activities in those methods. However, only two(one imported brand and one domestic sample cigarettes) among the TMP obtained from various cigarettes appeared the higher induction in SCE than Ames test.

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