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Flavonoid and lignan intake and pancreatic cancer risk in the European prospective investigation into cancer and nutrition cohort
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2016 (English)In: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 139, no 7, 1480-1492 p.Article in journal (Refereed) PublishedText
Abstract [en]

Despite the potential cancer preventive effects of flavonoids and lignans, their ability to reduce pancreatic cancer risk has not been demonstrated in epidemiological studies. Our aim was to examine the association between dietary intakes of flavonoids and lignans and pancreatic cancer risk in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. A total of 865 exocrine pancreatic cancer cases occurred after 11.3 years of follow-up of 477,309 cohort members. Dietary flavonoid and lignan intake was estimated through validated dietary questionnaires and the US Department of Agriculture (USDA) and Phenol Explorer databases. Hazard ratios (HR) and 95% confidence intervals (CIs) were calculated using age, sex and center-stratified Cox proportional hazards models, adjusted for energy intake, body mass index (BMI), smoking, alcohol and diabetes status. Our results showed that neither overall dietary intake of flavonoids nor of lignans were associated with pancreatic cancer risk (multivariable-adjusted HR for a doubling of intake=1.03, 95% CI: 0.95-1.11 and 1.02; 95% CI: 0.89-1.17, respectively). Statistically significant associations were also not observed by flavonoid subclasses. An inverse association between intake of flavanones and pancreatic cancer risk was apparent, without reaching statistical significance, in microscopically confirmed cases (HR for a doubling of intake=0.96, 95% CI: 0.91-1.00). In conclusion, we did not observe an association between intake of flavonoids, flavonoid subclasses or lignans and pancreatic cancer risk in the EPIC cohort. What's new? Flavonoids and lignans found in plant-based foods are potent cancer chemopreventive agents but little is known about their effects on pancreatic cancer risk. Here the authors address this question in a large prospective epidemiological study using comprehensively derived dietary data. Their results support growing evidence that there is no association between food-based consumption of both substances with pancreatic cancer risk.

Place, publisher, year, edition, pages
2016. Vol. 139, no 7, 1480-1492 p.
Keyword [en]
diet, flavonoids, lignans, pancreatic cancer, cohort
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:umu:diva-124682DOI: 10.1002/ijc.30190ISI: 000379977200005PubMedID: 27184434OAI: oai:DiVA.org:umu-124682DiVA: diva2:954394
Available from: 2016-08-22 Created: 2016-08-22 Last updated: 2016-08-22Bibliographically approved

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Sund, Malin
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Department of Biobank Research
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