Lancet Oncology:不良生活方式增加患乳腺癌风险

2013-07-31 刘海英 新华社

日前,牛津大学的研究人员发现,绝经前女性血液中性激素水平越高,她们罹患乳腺癌的风险越大。 在这项研究中,科学家通过对 760 名乳腺癌患者和 1700 名健康女性血液中激素水平相关数据进行分析后得出。 研究人员在最新一期医学杂志《柳叶刀-肿瘤学》(Lancet Oncology)上发表论文称,数据分析表明,性激素水平最高者比最低者罹患乳腺癌的风险增加了 1/5 到 1/3。这些性激素包括雌

日前,牛津大学的研究人员发现,绝经前女性血液中性激素水平越高,她们罹患乳腺癌的风险越大。

在这项研究中,科学家通过对 760 名乳腺癌患者和 1700 名健康女性血液中激素水平相关数据进行分析后得出。

研究人员在最新一期医学杂志《柳叶刀-肿瘤学》(Lancet Oncology)上发表论文称,数据分析表明,性激素水平最高者比最低者罹患乳腺癌的风险增加了 1/5 到 1/3。这些性激素包括雌性激素雌二酮、雌酮,雄性激素雄烯二酮、脱氢表雄酮(DHEAS)以及睾酮。

研究人员还对女性绝经前的生活方式和激素水平的关系进行了研究,结果发现,一些不良生活方式会影响她们的性激素水平,从而间接造成乳腺癌风险的增加。例如,每天吸烟超过 15 支或饮酒超过两杯的女性,其体内雄性激素的水平就会明显高于那些不吸烟喝酒的女性;而饮用酒精饮料越多,体内的雌激素水平也会越高。

研究人员表示,目前他们对性激素水平和乳腺癌之间的关联机制还不完全明晰,尚需要进行更多的研究,而这一新研究成果有助于他们理解乳腺癌生物学机制,对于设计未来的研究方案具有重要意义。

Endogenous Hormones and Breast Cancer Collaborative Group. Sex hormones and risk of breast cancer in premenopausal women: a collaborative reanalysis of individual participant data from seven prospective studies. The Lancet Oncology, 24 July 2013; doi:10.1016/S1470-2045(13)70301-2

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    2013-09-29 sjq027
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    2014-04-05 minlingfeng
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    2014-01-10 howi

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