Quercetin enhances pretumorous lesions in the NMU model of rat pancreatic carcinogenesis

被引:22
作者
Barotto, NN
López, CB
Eynard, AR
Zapico, MEF
Valentich, MA [1 ]
机构
[1] Univ Nacl Cordoba, Fac Ciencias Med, IIda Catedra Histol, RA-5000 Cordoba, Argentina
[2] Univ Nacl Cordoba, Fac Ciencias Med, Inst Biol Celular, RA-5000 Cordoba, Argentina
[3] CONICET, RA-5000 Cordoba, Argentina
[4] Univ Nacl Cordoba, Fac Ciencias Med, Ira Catedra Histol, RA-5000 Cordoba, Argentina
关键词
quercetin; nitrosomethylurea; promotion; progression; pancreatic carcinogenesis;
D O I
10.1016/S0304-3835(98)00033-0
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
The effect of dietary quercetin (Q) was evaluated in rats treated with nitrosomethylurea (NMU). Pancreatic nodules and focal acinar cell hyperplasias were observed in groups treated with NMU (87%) and Q-NMU (100%). Although rats with dysplastic foci (27%) were found in the NMU-treated group, Q-NMU treatment resulted in a significantly higher number of rats with dysplastic foci (73%). Furthermore, carcinomas in situ (12%) and one microcarcinoma (4%) were found in these animals. Mitosis was significantly increased and apoptosis was diminished in focal acinar cell hyperplasias of the Q-NMU group. Our present results support a promoting and progressing effect of quercetin in the NMU model of rat pancreatic carcinogenesis. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:1 / 6
页数:6
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