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关于二乙基亚硝胺(DENA)与9,10-二甲基-1,2-苯并蒽(DMBA)在CBA小鼠肝细胞中竞争作用的定量放射自显影研究。

Quantitative autoradiographic studies on the competition of diethylnitrosamine (DENA) and 9,10-dimethyl-1,2-benzanthracene (DMBA) in the liver cell of CBA-mice.

作者信息

Amlacher E, Danz M

出版信息

Exp Pathol (Jena). 1975;10(5-6):338-47. doi: 10.1016/s0014-4908(75)80042-1.

DOI:10.1016/s0014-4908(75)80042-1
PMID:823043
Abstract

In CBA-mice the competition of DENA and DMBA was studied by quantitative autoradiography. During the precancerous phase in DENA-pretreated animals the rate of DMBA-incorporation into DNA/RNA and nuclear proteins was lower as compared to the controls without DENA-pretreatment. Independent of DENA-pretreatment the rate of DMBA-incorporation into the cytoplasm was significantly enhanced in hepatectomized animals. In this experiment the skin as a target organ did not show any quantitatively measurable DMBA-incorporation despite of prolonged autoradiographic exposition time.

摘要

在CBA小鼠中,通过定量放射自显影研究了二乙基亚硝胺(DENA)和二甲基苯并蒽(DMBA)的竞争情况。在DENA预处理动物的癌前阶段,与未进行DENA预处理的对照组相比,DMBA掺入DNA/RNA和核蛋白中的速率较低。无论是否进行DENA预处理,肝切除动物中DMBA掺入细胞质的速率均显著提高。在本实验中,尽管放射自显影曝光时间延长,但作为靶器官的皮肤未显示出任何可定量测量的DMBA掺入情况。

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