Dietary intake of isoflavones and coumestrol and risk of pancreatic cancer in the prostate, lung, colorectal, and ovarian cancer screening trial.

IF 6.4 1区 医学 Q1 ONCOLOGY
Chunliang Liu, Michael Reger, Hao Fan, Jintao Wang, Jianjun Zhang
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引用次数: 0

Abstract

Background: Although phytoestrogens modulated pancreatic tumour growth in experimental studies, it remains unclear whether phytoestrogen intake is associated with pancreatic cancer.

Methods: Of 92,278 persons who completed the Diet History Questionnaire in the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial, 346 were diagnosed with pancreatic cancer within a median follow-up of 9.4 years. Cox proportional hazards regression was used to evaluate pancreatic cancer risk in relation to phytoestrogen intake.

Results: After adjustment for confounders, intakes of glycitein and formononetin were associated with a reduced risk of pancreatic cancer [highest vs. lowest quartile, hazard ratio (HR) (95% confidence interval (CI)) for glycitein: 0.60 (0.39, 0.92); P for linear trend: 0.01; HR for formononetin: 0.51 (0.37, 0.70); P for linear trend: 0.005]. These associations were stronger and their linear trends across the quartiles of intakes were more statistically significant among ever smokers than never-smokers. A reduced risk was also observed for ever smokers in the highest quartile of total isoflavones or daidzein compared with those in the lowest quartile.

Conclusions: Our study suggests that high intakes of total isoflavones and some individual isoflavones were inversely associated with pancreatic cancer risk, but this potential protective effect was confined to ever smokers.

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来源期刊
British Journal of Cancer
British Journal of Cancer 医学-肿瘤学
CiteScore
15.10
自引率
1.10%
发文量
383
审稿时长
6 months
期刊介绍: The British Journal of Cancer is one of the most-cited general cancer journals, publishing significant advances in translational and clinical cancer research.It also publishes high-quality reviews and thought-provoking comment on all aspects of cancer prevention,diagnosis and treatment.
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