饮食脂肪酸和膀癌风险:来自PLCO癌症查试验的见解
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Gao Li1, Wenjie Zheng1, Xin Zhang1
1Department of Urology, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China.
Nutrition and cancer
|April 16, 2025
概括
饮食中的脂肪酸没有显示出与膀癌症风险的总体联系. 然而,更高的单不和脂肪酸 (MUFA) 摄入量可能会使女性受益,尽管过度摄入不会提供额外的保护.
科学领域:
- 营养流行病学 营养流行病学
- 在瘤学瘤学.
- 公共卫生 公共卫生
背景情况:
- 饮食因素,包括脂肪酸,与各种癌症风险有关.
- 了解不同饮食脂肪酸在膀癌发展中的具体作用,对于预防策略至关重要.
研究的目的:
- 调查各种食脂肪酸摄入量与患膀癌的风险之间的关联.
- 探索性别和吸烟状态对这种关系的潜在改变影响.
主要方法:
- 从前列腺,肺,结肠直肠和卵巢 (PLCO) 癌症查试验的101731名参与者的数据进行定量分析.
- 利用Cox比例危险模型来评估膀癌风险的危险比率 (HR) 和95%置信区间 (CI).
- 调整以考虑混因素和进行子组分析,包括性别特异性和吸烟状况相互作用.
主要成果:
- 在完全调整后,在饮食中脂肪酸总摄入量和膀癌症风险之间没有发现有意义的总体关联.
- 观察到与性别 (p < 0.001) 和吸烟状况 (p < 0.001) 有关的显著相互作用.
- 在女性中,较高的单不和脂肪酸 (MUFA) 摄入量与膀癌风险降低有关 (HR:0.62;95% CI:0.39-0.99),但这种效应与摄入量增加不线性.
结论:
- 饮食脂肪酸和膀癌风险之间的关系是复杂的,受到性别和吸烟的影响.
- 适度的MUFA消费可能会对女性的膀癌产生保护作用,但这种益处不会随着摄入量增加而增加.
- 需要进一步的研究来阐明这些性别特异性关联背后的机制.
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