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植物雌激素与肿瘤 被引量:9

Phytoestrogens and cancer
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摘要 植物雌激素为杂环多酚类化合物 ,是一种具有弱雌激素作用的植物成分 ,主要包括异黄酮 (isoflavone)、木酚素(lignan)和香豆雌酚 (coumestrol) 3大类。植物雌激素与 17β-雌二醇结构相似 ,可以与雌二醇竞争性结合雌激素受体 (ER) ,表现出雌激素拮抗作用 ,对激素相关性疾病具有保护作用。调查发现豆类食品摄入量增加会降低乳腺癌和其它肿瘤的发病。豆类食物中的异黄酮类物质能减弱雌激素诱导的乳腺癌细胞增生和癌细胞的生成 ,染料木黄酮及其前体物质生物禅宁A对雄激素依赖型和非依赖型前列腺癌细胞以及胃、食管及直肠肿瘤细胞的增生均有抑制作用 。
作者 马吉祥
出处 《国外医学(肿瘤学分册)》 2001年第6期416-419,共4页 Foreign Medical Sciences (Cancer Section)
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