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
中科院分区:
文献类型:
--
作者:
Perera,MI;Katyal,SL;Shinozuka,H
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.
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影响因子:
9.7
作者:
G. Probst;S. B. Neal
通讯作者:
S. B. Neal
影响因子:
56.9
作者:
LIJINSKY, W;REUBER, MD;BLACKWELL, BN
通讯作者:
BLACKWELL, BN
影响因子:
11.2
作者:
Shinozuka,H;Lombardi,B
通讯作者:
Lombardi,B
影响因子:
11.2
作者:
Yokoyama,S;Sells,MA;Reddy,TV;Lombardi,B
通讯作者:
Lombardi,B
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