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Mancini FR, Affret A, Dow C, Balkau B, Bonnet F, Boutron-Ruault MC, Fagherazzi G. Dietary antioxidant capacity and risk of type 2 diabetes in the large prospective E3N-EPIC cohort. Diabetologia 2018; 61:308-316. [PMID: 29119242 DOI: 10.1007/s00125-017-4489-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 09/28/2017] [Indexed: 01/04/2023]
Abstract
AIMS/HYPOTHESIS Recent evidence suggests that oxidative stress may contribute to the pathogenesis of type 2 diabetes. The diet, and especially fruit and vegetables, contains a variety of compounds with antioxidant activity, which may have cumulative/synergistic antioxidant effects. The total antioxidant capacity, an index derived from dietary intake, is a single estimate of antioxidant capacity from all dietary antioxidants. The main aim of this study was to investigate the relationship between total antioxidant capacity and risk of type 2 diabetes. METHODS Among 64,223 women (mean age 52 ± 7 years) from the French E3N-European Prospective Investigation into Cancer and Nutrition (EPIC) cohort, 1751 women had validated type 2 diabetes during 15 years of follow-up. The total antioxidant capacity was estimated with the ferric ion-reducing antioxidant power (FRAP) method. Adjusted Cox proportional hazards regression models were used to calculate HRs and 95% CIs for the associations between total antioxidant capacity and type 2 diabetes risk, adjusted for potential confounders. RESULTS In multivariable models, higher levels of total antioxidant capacity were associated with a lower risk of type 2 diabetes. Compared with women in the lowest quintile, women in the third, fourth and fifth quintiles for total antioxidant capacity had HRs of 0.74 (95% CI 0.63, 0.86), 0.70 (95% CI 0.59, 0.83) and 0.73 (95% CI 0.60, 0.89), respectively. The inverse association between total antioxidant capacity and risk of type 2 diabetes was linear up to values of 15 mmol/day, after which the effect reached a plateau. CONCLUSIONS/INTERPRETATION Our findings suggest that the total antioxidant capacity may play an important role in reducing the risk of type 2 diabetes in middle-aged women. More studies are warranted to better understand the biological mechanisms underlying this inverse association.
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Affiliation(s)
- Francesca Romana Mancini
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Aurélie Affret
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Courtney Dow
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Beverley Balkau
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Renal and cardiovascular Epidemiology' Team, University Versailles, Saint Quentin, University Paris-Sud, Villejuif, France
| | - Fabrice Bonnet
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
- CHU Rennes, Université de Rennes 1, Department of Endocrinology, Diabetology and Nutrition, Rennes, France
| | - Marie-Christine Boutron-Ruault
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France.
| | - Guy Fagherazzi
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
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