红细胞多不和脂肪酸和乳腺癌后的死亡率
Humberto Parada1,2,3, Tianying Wu1, Eunha Hoh4
1Division of Epidemiology and Biostatistics, School of Public Health, San Diego State University, San Diego, California.
概括
红细胞中多不和脂肪酸 (PUFA) 含量,特别是α-烯酸 (ALA) 和烯酸 (LA),可能表明乳腺癌幸存者的死亡风险较高. 某些PUFA组合可能会降低这种风险.
科学领域:
- 营养流行病学 营养流行病学
- 生物标志物 生物标志物
- 在瘤学瘤学.
背景情况:
- 摄入多不和脂肪酸 (PUFA) 可能会影响乳腺癌死亡率.
- 以前的研究依赖于自我报告的摄入量,限制了准确性.
- 红细胞 (RBC) 的PUFA水平提供了一个更客观的生物标志物.
研究的目的:
- 研究乳腺癌幸存者的红细胞PUFA水平和死亡率之间的关联.
- 确定特定的PUFA或PUFA模式是否与全因死亡率 (ACM) 和乳腺癌特定死亡率 (BCM) 有关.
主要方法:
- 这是一项针对女性健康饮食和生活研究中的1104名女性进行的嵌套病例对照研究.
- 测量了四个 ω-3 和七个 ω-6 PUFA 的基线红细胞水平.
- 使用条件后勤回归来分析与ACM和BCM的关联,包括PUFA模式的主要成分因子分析 (PCFA).
主要成果:
- 升高的RBC阿尔法-烯酸 (ALA) 和酸 (LA) 与增加的ACM和BCM有关.
- 某些PUFA组合 (PCFA因子1) 的较高水平与较低的ACM和BCM有关.
- 另一种PUFA模式 (PCFA因子4) 与BCM增加有关.
结论:
- 红血球中的ALA,LA和玛-烯酸 (GLA) 含量可以作为乳腺癌幸存者的预后指标.
- 这些发现凸显了PUFA生物标志物在理解死亡风险方面的重要性.
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