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尿液均水平与癌症之间的反转U形关联:基于全国人口的横截面研究
Jufa Li1, Jing Lv1, Yuwei Zhang2,3
1Wuxi School of Medicine, Jiangnan University, Wuxi, China.
Scientific reports
|February 27, 2025
概括
这项研究发现,更高的尿液等度与40岁及以上美国人的癌症风险增加有关. 然而,非常高的水平可能会显示出轻微的保护作用,需要进一步调查.
科学领域:
- 生物化学 生物化学
- 营养科学 营养科学
- 流行病学 流行病学
背景情况:
- 来自大豆的植物性雌激素Equol具有潜在的健康益处,但其在癌症预防中的作用仍在争论中.
- 肠道细菌将大豆异黄代谢成equol,其个体产量各不相同.
- 现有的关于equol和癌症风险的研究提出了相互矛盾的发现.
研究的目的:
- 为了研究尿液等值度与美国成年人群癌症风险之间的关联.
- 为了分析equol水平和癌症发病率之间的剂量反应关系.
- 探索潜在的非线性关联和值效应.
主要方法:
- 利用了2005-2010年国家健康和营养检查调查 (NHANES) 中2797名参与者 (40岁以上) 的数据.
- 采用加权后勤回归,分层分析和光滑曲线拟合来分析癌症风险.
- 评估癌症诊断与尿液等度的四分位数,并进行值效应分析.
主要成果:
- 在更高的尿液等值水平和增加的癌症风险之间观察到正相关性.
- 与最低四分位数相比,同醇分泌的最高四分位数显示癌症风险增加了25.4% (POR=1.254).
- 平的曲线拟合揭示了一个反转的U形关系,风险增加到25.5 ng/ml以下,略微降低到以上.
结论:
- 尿液中乙醇度升高与美国成年人患癌症的风险更高有关.
- 存在潜在的值效应,低于25.5 ng/ml的度与风险增加有关.
- 需要进一步的前性研究和临床试验来证实这些发现,并阐明equol与癌症之间的复杂关系.
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