JNCI:母乳喂养与乳腺癌患者生存之间的关系

2015-05-25 徐媛媛译 MedSci原创

母乳喂养与降低患乳腺癌风险有关,但与亚型的乳腺癌患者预后和生存期的相关性尚不清楚。 研究人员进行了一项队列研究,1636名乳腺癌幸存者来自两项前瞻性队列研究组。通过PAM50基因表达来分析确定肿瘤的固有亚型(管腔A,管腔B,人表皮生长因子受体2富集,或基底样)。通过问卷调查来了解患者的母乳喂养史。在平均9年随访期间,医疗病例记录了383名乳腺癌患者复发和290名患者死亡。使用多项Logistic

母乳喂养与降低患乳腺癌风险有关,但与亚型的乳腺癌患者预后和生存期的相关性尚不清楚。

研究人员进行了一项队列研究,1636名乳腺癌幸存者来自两项前瞻性队列研究组。通过PAM50基因表达来分析确定肿瘤的固有亚型(管腔A,管腔B,人表皮生长因子受体2富集,或基底样)。通过问卷调查来了解患者的母乳喂养史。在平均9年随访期间,医疗病例记录了383名乳腺癌患者复发和290名患者死亡。使用多项Logistic回归来评估母乳喂养和肿瘤亚型之间的优势比(ORs)。使用Cox回归评估乳腺癌复发或死亡的风险比。

与管腔A肿瘤相比,基底样乳腺癌患者是最不可能有母乳喂养史的(OR = 0.56,95% CI = 0.39 - 0.80)。在所有患者中,母乳喂养史与较低的复发风险相关(HR = 0.70,95% CI = 0.53 - 0.93),尤其是母乳喂养六个月或更长时间(HR = 0.63,95% CI = 0.46-0.87,趋势P = 0.01)。乳腺癌死亡的相关性与此类似。在管腔A亚型的女性患者中,母乳喂养史与降低的复发风险(HR = 0.52,95% CI = 0.31 - 0.89)和乳腺癌死亡(HR = 0.52,95% CI = 0.29 - 0.93)风险相关,但没有观察到与其他亚型显著相关。以上结论似乎只局限于较低的增殖基因表达肿瘤中。

母乳喂养可能通过建立具有较低增殖活性的管腔肿瘤环境来影响预后和生存。

原始出处

Kwan ML1, Bernard PS2, Kroenke CH2, Factor RE2, Habel LA2, Weltzien EK2, Castillo A2, Gunderson EP2, Maxfield KS2, Stijleman IJ2, Langholz BM2, Quesenberry CP Jr2, Kushi LH2, Sweeney C2, Caan BJ2.Breastfeeding, PAM50 Tumor Subtype, and Breast Cancer Prognosis and Survival.J Natl Cancer Inst. 2015 Apr 28

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    2015-11-07 lanyan20020086
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    2015-05-27 villahu
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    2015-05-25 huaxipanxing

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