Choline deficient diet enhances the initiating and promoting effects of methapyrilene hydrochloride in rat liver as assayed by the induction of gamma-glutamyltranspeptidase-positive hepatocyte foci.

Choline deficient diet enhances the initiating and promoting effects of methapyrilene hydrochloride in rat liver as assayed by the induction of gamma-glutamyltranspeptidase-positive hepatocyte foci.
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通过诱导γ-谷氨酰转肽酶阳性肝细胞灶进行测定,缺乏胆碱的饮食增强了盐酸甲芘林在大鼠肝脏中的启动和促进作用。

DOI:
10.1038/bjc.1987.286
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发表时间:
1987
影响因子:
8.8
通讯作者:
Shinozuka,H
Shinozuka,H
中科院分区:
医学1区
文献类型:
--
作者:
Perera,MI;Katyal,SL;Shinozuka,H

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早些时候,我们证明,短期喂养大鼠盐酸甲芘林(MPH)和缺乏胆碱(CD)饮食会引起肝细胞微粒体膜脂质的过氧化损伤。在本研究中,我们通过诱导γ-谷氨酰转肽酶(GGT)阳性肝细胞灶来研究CD饮食是否会改变MPH诱导的脂质过氧化的程度,以及这些改变是否会导致这些药物的启动和促进作用发生变化。在 CD 饮食中添加 0.1% MPH 增强了单独 CD 饮食诱导的微粒体脂质过氧化程度。饲喂补充胆碱 (CS) 或含有 0.1% MPH 的 CD 饮食 2 周,然后用 CD 饮食加苯巴比妥促进 7 周,对于诱导 GGT 阳性病灶无效。然而,在 CS 或 CD 饮食中饲喂 MPH 4 周,导致出现大量 GGT 阳性病灶。开始使用 CD+ MPH 饮食的大鼠的病灶数量比开始使用 CS+ MPH 饮食的大鼠增加了 3 倍。 CS饮食或CD饮食中的0.1% MPH对单次注射二乙基亚硝胺引发的大鼠GGT阳性病灶的诱导具有显着的促进作用。在 CD 饮食中添加 MPH 可以促进 GGT 阳性病灶的诱导。结果表明,肝脏的脂质过氧化可能与 MPH 和 CD 饮食的致癌和/或促进作用有关。
Earlier we demonstrated that short-term feeding of methapyrilene hydrochloride (MPH) and of a choline deficient (CD) diet to rats induced peroxidative damage of microsomal membrane lipids of liver cells. In the present study, we investigated whether a CD diet modifies the extent of MPH-induced lipid peroxidation and whether the modifications lead to changes in the initiating and promoting action of these agents using assays of the induction of gamma-glutamyltranspeptidase (GGT)-positive hepatocyte foci. Addition of 0.1% MPH to a CD diet enhanced the extent of microsomal lipid peroxidation induced by a CD diet alone. Feeding a choline supplemented (CS) or a CD diet containing 0.1% MPH for 2 weeks followed by 7 weeks promotion by a CD diet plus phenobarbital was ineffective in inducing GGT-positive foci. Feeding MPH in a CS or a CD diet for 4 weeks, however, resulted in the development of substantial numbers of GGT-positive foci. There was a 3 fold increase in the number of foci in rats initiated with a CD+ MPH diet over that in rats initiated with a CS+ MPH diet. 0.1% MPH in a CS diet or a CD diet exerted significant promotional effects on the induction of GGT-positive foci in rats initiated with a single injection of diethylnitrosamine. Addition of MPH to a CD diet was additive in inducing GGT-positive foci. The results suggest that lipid peroxidation of the liver may be involved in the carcinogenic and/or promoting effects of MPH and a CD diet.
抗组胺药在原代肝细胞培养物中诱导非计划 DNA 合成。
DOI: 10.1016/0304-3835(80)90067-1
发表时间: 1980
期刊: Cancer letters
影响因子: 9.7
作者:
G. Probst;S. B. Neal
通讯作者: S. B. Neal
DOI: 10.1126/science.7403848
发表时间: 1980-01-01
期刊: SCIENCE
影响因子: 56.9
作者:
LIJINSKY, W;REUBER, MD;BLACKWELL, BN
通讯作者: BLACKWELL, BN
无胆碱饮食和苯巴比妥在促进致癌物治疗大鼠肝脏中γ-谷氨酰转肽酶阳性肝细胞病灶出现方面的协同作用。
DOI: --
发表时间: 1980
期刊: Cancer research
影响因子: 11.2
作者:
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缺乏胆碱饮食对大鼠的肝癌和促进作用。
DOI: --
发表时间: 1985
期刊: Cancer research
影响因子: 11.2
作者:
Yokoyama,S;Sells,MA;Reddy,TV;Lombardi,B
通讯作者: Lombardi,B
自由基在肿瘤促进和癌变中的作用。
DOI: --
发表时间: 1982
期刊: Carcinogenesis; a comprehensive survey
影响因子: --
作者:
W. Troll;G. Witz;B. Goldstein;D. Stone;T. Sugimura
通讯作者: T. Sugimura