Dietary Antioxidant Vitamins and Minerals and Breast Cancer Risk: Prospective Results from the SUN Cohort

There is growing interest in natural antioxidants and their potential effects on breast cancer (BC). Epidemiological evidence, however, is inconsistent. We prospectively evaluated the association between dietary intake of vitamins A, C, and E, selenium, and zinc and BC among 9983 female participants...

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Main Authors: Cesar I. Fernandez-Lazaro, Miguel Ángel Martínez-González, Inmaculada Aguilera-Buenosvinos, Alfredo Gea, Miguel Ruiz-Canela, Andrea Romanos-Nanclares, Estefanía Toledo
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Antioxidants
Subjects:
Online Access:https://www.mdpi.com/2076-3921/10/3/340
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author Cesar I. Fernandez-Lazaro
Miguel Ángel Martínez-González
Inmaculada Aguilera-Buenosvinos
Alfredo Gea
Miguel Ruiz-Canela
Andrea Romanos-Nanclares
Estefanía Toledo
author_facet Cesar I. Fernandez-Lazaro
Miguel Ángel Martínez-González
Inmaculada Aguilera-Buenosvinos
Alfredo Gea
Miguel Ruiz-Canela
Andrea Romanos-Nanclares
Estefanía Toledo
author_sort Cesar I. Fernandez-Lazaro
collection DOAJ
description There is growing interest in natural antioxidants and their potential effects on breast cancer (BC). Epidemiological evidence, however, is inconsistent. We prospectively evaluated the association between dietary intake of vitamins A, C, and E, selenium, and zinc and BC among 9983 female participants from the SUN Project, a Mediterranean cohort of university graduates. Participants completed a food frequency questionnaire at baseline, and biennial follow-up information about incident BC diagnosis was collected. Cases were ascertained through revision of medical charts and consultation of the National Death Index. Cox proportional hazards models were used to estimate multivariable-adjusted hazard ratios (HRs) and 95% confidence intervals (CI). During an average follow-up of 11.3 years, 107 incident BC cases were confirmed. The multivariable HRs (95% CI) for BC comparing extreme tertiles of energy-adjusted dietary intakes were 1.07 (0.64–1.77; <i>P</i><sub>trend</sub> = 0.673) for vitamin A, 1.00 (0.58–1.71; <i>P</i><sub>trend</sub> = 0.846) for vitamin C, 0.92 (0.55–1.54; <i>P</i><sub>trend</sub> = 0.728) for vitamin E, 1.37 (0.85–2.20; <i>P</i><sub>trend</sub> = 0.135) for selenium, and 1.01 (0.61–1.69; <i>P</i><sub>trend</sub> = 0.939) for zinc. Stratified analyses showed an inverse association between vitamin E intake and postmenopausal BC (HR<sub>T3 vs. T1</sub> = 0.35; 95% CI, 0.14–0.86; <i>P</i><sub>trend</sub> = 0.027). Our results did not suggest significant protective associations between dietary vitamins A, C, and E, selenium, or zinc and BC risk.
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spelling doaj.art-43dedde2655745918ad27d15cac2863c2023-12-11T18:16:01ZengMDPI AGAntioxidants2076-39212021-02-0110334010.3390/antiox10030340Dietary Antioxidant Vitamins and Minerals and Breast Cancer Risk: Prospective Results from the SUN CohortCesar I. Fernandez-Lazaro0Miguel Ángel Martínez-González1Inmaculada Aguilera-Buenosvinos2Alfredo Gea3Miguel Ruiz-Canela4Andrea Romanos-Nanclares5Estefanía Toledo6Department of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, SpainDepartment of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, SpainDepartment of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, SpainDepartment of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, SpainDepartment of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, SpainDepartment of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, SpainDepartment of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, SpainThere is growing interest in natural antioxidants and their potential effects on breast cancer (BC). Epidemiological evidence, however, is inconsistent. We prospectively evaluated the association between dietary intake of vitamins A, C, and E, selenium, and zinc and BC among 9983 female participants from the SUN Project, a Mediterranean cohort of university graduates. Participants completed a food frequency questionnaire at baseline, and biennial follow-up information about incident BC diagnosis was collected. Cases were ascertained through revision of medical charts and consultation of the National Death Index. Cox proportional hazards models were used to estimate multivariable-adjusted hazard ratios (HRs) and 95% confidence intervals (CI). During an average follow-up of 11.3 years, 107 incident BC cases were confirmed. The multivariable HRs (95% CI) for BC comparing extreme tertiles of energy-adjusted dietary intakes were 1.07 (0.64–1.77; <i>P</i><sub>trend</sub> = 0.673) for vitamin A, 1.00 (0.58–1.71; <i>P</i><sub>trend</sub> = 0.846) for vitamin C, 0.92 (0.55–1.54; <i>P</i><sub>trend</sub> = 0.728) for vitamin E, 1.37 (0.85–2.20; <i>P</i><sub>trend</sub> = 0.135) for selenium, and 1.01 (0.61–1.69; <i>P</i><sub>trend</sub> = 0.939) for zinc. Stratified analyses showed an inverse association between vitamin E intake and postmenopausal BC (HR<sub>T3 vs. T1</sub> = 0.35; 95% CI, 0.14–0.86; <i>P</i><sub>trend</sub> = 0.027). Our results did not suggest significant protective associations between dietary vitamins A, C, and E, selenium, or zinc and BC risk.https://www.mdpi.com/2076-3921/10/3/340breast cancerantioxidantsvitamin Avitamin Cvitamin Eselenium
spellingShingle Cesar I. Fernandez-Lazaro
Miguel Ángel Martínez-González
Inmaculada Aguilera-Buenosvinos
Alfredo Gea
Miguel Ruiz-Canela
Andrea Romanos-Nanclares
Estefanía Toledo
Dietary Antioxidant Vitamins and Minerals and Breast Cancer Risk: Prospective Results from the SUN Cohort
Antioxidants
breast cancer
antioxidants
vitamin A
vitamin C
vitamin E
selenium
title Dietary Antioxidant Vitamins and Minerals and Breast Cancer Risk: Prospective Results from the SUN Cohort
title_full Dietary Antioxidant Vitamins and Minerals and Breast Cancer Risk: Prospective Results from the SUN Cohort
title_fullStr Dietary Antioxidant Vitamins and Minerals and Breast Cancer Risk: Prospective Results from the SUN Cohort
title_full_unstemmed Dietary Antioxidant Vitamins and Minerals and Breast Cancer Risk: Prospective Results from the SUN Cohort
title_short Dietary Antioxidant Vitamins and Minerals and Breast Cancer Risk: Prospective Results from the SUN Cohort
title_sort dietary antioxidant vitamins and minerals and breast cancer risk prospective results from the sun cohort
topic breast cancer
antioxidants
vitamin A
vitamin C
vitamin E
selenium
url https://www.mdpi.com/2076-3921/10/3/340
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