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    April 28

    女性每天饮酒易患乳腺癌

    一项新的研究发现,每天摄入酒精量超过一杯的女性患侵入性乳腺癌的危险会增加7%,如果每天饮酒超过两杯,患此病的危险就会增加32%。

        据路透社报道,美国哈佛大学医学院的研究人员对39876名参与“女性健康研究”的妇女进行了调查。在10年随访期间,共有1190名女性患了侵入性乳腺癌,有294名女性被确诊为早期乳腺癌患者。

        研究结果显示,那些每天饮酒一杯或四分之三杯(酒精含量为10克)的女性,其患乳腺癌的危险增加了7%,而患其他更严重疾病的危险增加了9%;那些每天饮酒不低于两杯(酒精含量为30克)的女性患乳腺癌的危险总体增加了32%。

        在此之前的研究认为,酒精是通过影响妇女体内雌激素水平的方式来增加乳腺癌风险的,这一假说现在得到了证实,而该项研究发现,体内含有雌激素和孕激素受体的女性确实与乳腺癌危险之间有着密切的关系。研究还发现,那些接受激素替代疗法改善更年期症状的妇女同样面临较大的危险。与不饮酒、不服用激素的同龄妇女相比,那些每天酒精摄入量达到10克并且还在接受激素替代疗法的妇女患乳腺癌的危险会增加84%。

        研究人员说,如果女性要喝酒,就应考虑一下喝酒的危险和益处。啤酒、果酒和白葡萄酒都会增加患乳腺癌危险,但红葡萄酒除外。因为红酒中所含的化学成分,如白藜芦醇和其他多酚成分能够抵消酒精造成的不良影响。

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