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Inflammatory potential of diet and pancreatic cancer risk in the EPIC study

Abstract

Purpose

There is existing evidence on the potential role of chronic inflammation in the pathogenesis of pancreatic cancer (PC) and on how risk may be modulated by dietary factors. Pro-inflammatory diets are suggested to be associated with increased risk of PC but, so far, evidence remains not conclusive. We examined the association between the dietary inflammatory potential and PC risk within the European Prospective Investigation into Cancer and Nutrition (EPIC) study, which includes 450,112 participants.

Methods

After a 14-year follow-up, a total of 1239 incident PC cases were included in this study. The inflammatory potential of the diet was estimated using an Inflammatory Score of the Diet (ISD). Hazard ratios (HRs) and 95% confidence intervals (CIs) for the association between the ISD and PC were estimated using multivariable Cox regression models, adjusted for known risk factors for PC.

Results

Participants with higher ISDs had a higher risk of developing PCs. In the fully adjusted multivariate model, the risk of PC increased by 11% (HR 1.11, 95% CI 1.02–1.22) for 1 point each standard deviation increase in the ISD score. Neither obesity nor any other known risk factor for PC showed statistically significant interactions.

Conclusion

To the best of our knowledge, this is the first prospective study reporting a positive relationship between the inflammatory potential of diet and PC. Since early diagnosis and treatment of pancreatic cancer might be challenging, prevention remains the major hope for reducing the burden of this disease.

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Data availability

Author elects to not share data.

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Funding

This work was funded by Instituto de Salud Carlos III through the project PI15/00639 (Co-funded by European Regional Development Fund [ERDF], a way to build Europe). We thank CERCA Programme/Generalitat de Catalunya for institutional support. The coordination of EPIC is financially supported by the European Commission (DG-SANCO) and the International Agency for Research on Cancer. The national cohorts are supported by the Danish Cancer Society (Denmark); Ligue Contre le Cancer, Institut Gustave Roussy, Mutuelle Générale de l’Education Nationale, Institut National de la Santé et de la Recherche Médicale (INSERM) (France); German Cancer Aid, German Cancer Research Center (DKFZ), Federal Ministry of Education and Research (BMBF), Deutsche Krebshilfe, Deutsches Krebsforschungszentrum and Federal Ministry of Education and Research (Germany); The Hellenic Health Foundation (Greece); Associazione Italiana per la Ricerca sul Cancro-AIRC-Italy and National Research Council (Italy); Dutch Ministry of Public Health, Welfare and Sports (VWS), Netherlands Cancer Registry (NKR), LK Research Funds, Dutch Prevention Funds, Dutch ZON (Zorg Onderzoek Nederland), World Cancer Research Fund (WCRF), Statistics Netherlands (The Netherlands); Nordic Centre of Excellence programme on Food, Nutrition and Health (Norway); Health Research Fund (FIS)-Instituto de Salud Carlos III (ISCIII), Regional Governments of Andalucía, Asturias, Basque Country, Murcia and Navarra, and the Catalan Institute of Oncology-ICO (Spain); Swedish Cancer Society, Swedish Research Council and County Councils of Skåne and Västerbotten (Sweden); Cancer Research UK (14136 to EPIC-Norfolk; C570/A16491 and C8221/A19170 and A29017 to EPIC-Oxford), to EPIC-Oxford), Medical Research Council (1000143 to EPIC-Norfolk, MR/M012190/1 to EPIC-Oxford) (United Kingdom). We also thank Aarhus and Oxford centres for their participation. The funders of this study were not involved in the processes of analysis or interpretation of the data; nor did they play any role in the preparation, review or approval of the manuscript.

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Correspondence to Antonio Agudo or Paula Jakszyn.

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The authors have declared no conflicts of interest.

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All participants have signed a written informed consent (Ethical approval number PR102/15).

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Cayssials, V., Buckland, G., Crous-Bou, M. et al. Inflammatory potential of diet and pancreatic cancer risk in the EPIC study. Eur J Nutr 61, 2313–2320 (2022). https://doi.org/10.1007/s00394-022-02809-y

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  • DOI: https://doi.org/10.1007/s00394-022-02809-y

Keywords

  • Inflammatory potential of diet
  • Pancreatic cancer
  • Prospective cohort
  • Epidemiology
  • Dietary patterns