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Adherence to cancer prevention recommendations and antioxidant and inflammatory status in premenopausal women

Morimoto, Y.; Beckford, F.; Cooney, R.V.; Franke, A.A.; Maskarinec, G.

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For cancer prevention, the World Cancer Research Fund and American Institute for Cancer Research (WCRF/AICR) emphasise recommendations to improve individual behaviour, including avoidance of tobacco products, maintaining a lean body mass, participating in physical activity, consuming a plant-based diet, and minimising the consumption of energy-dense foods, such as sodas, red and processed meats and alcohol. In the present study of 275 healthy premenopausal women, we explored the association of adherence scores with levels of three biomarkers of antioxidant and inflammation status: serum C-reactive protein (CRP), serum γ-tocopherol and urinary F2-isoprostane. The statistical analysis applied linear regression across categories of adherence to WCRF/AICR recommendations. Overall, seventy-two women were classified as low (≤4), 150 as moderate (5-6), and fifty-three as high adherers (≥7). The unadjusted means for CRP were 2·7, 2·0 and 1·7 mg/l for low, moderate and high adherers(Ptrend= 0·03); this association was strengthened after adjustment for confounders (Ptrend= 0·006). The respective values for serum γ-tocopherol were 1·97, 1·63 and 1·45 μg/ml (Ptrend= 0·02 before and Ptrend= 0·03 after adjustment). Only for urinary F2-isoprostane, the lower values in high adherers (16·0, 14·5, and 13·3 ng/ml) did not reach statistical significance (Ptrend= 0·18). In an analysis by BMI, overweight and obese women had higher biomarker levels than normal weight women; the trend was significant for CRP (Ptrend <0·001) and γ-tocopherol (Ptrend= 0·003) but not for F2-isoprostane (Ptrend= 0·14). These findings suggest that both adherence to the WCRF/AICR guidelines and normal BMI status are associated with lower levels of biomarkers that indicate oxidative stress and inflammation. Copyright © The Authors 2015.

Automatic Tags

Nutrition; Recommendations; Lifestyle; Cancer prevention; Chronic inflammation

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