MedicalResearch.com Interview with: Cathryn Bock, PhD
Associate Professor, Oncology Department
Karmanos Cancer Institute
Wayne State University School of Medicine
Detroit, MI 48201
Medical Research: What are the main findings of the study?
Dr. Bock:This study examined the association between dietary antioxidant micronutrients and risk of renal cell carcinoma (RCC) among a cohort of 96,196 postmenopausal women from the Women’s Health Initiative (WHI). During follow-up (median follow-up time was 12 years), there were 240 cases of confirmed renal cell carcinoma in the cohort. Dietary lycopene intake, measured at baseline, was associated with a decreased risk of renal cell carcinoma (RCC). Women with the highest quartile of lycopene intake (>6427.7 mcg/day) had approximately 40% lower risk of RCC compared to those women in the lowest quartile of lycopene intake (<2727.6 mcg/day). There were no statistically significant associations observed between intake of beta-carotene, alpha-carotene, beta-cryptoxanthin, lutein + xeazanthin, vitamin C, or vitamin E and renal cell carcinoma.
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MedicalResearch.com Interview with: Vanessa Er PhD
School of Social and Community Medicine
University of Bristol and Bristol Nutrition BRU
Medical Research: What are the main findings of the study?Dr. Er: We found that men who had optimal intake of three nutrients- calcium, selenium and foods rich in lycopene- had a lower risk of prostate cancer. Mainly, men who ate over 10 servings/week of tomatoes and tomato-based products had 18% reduction in risk of developing prostate cancer. We also found that the risk of prostate cancer was lower in men who had high intake of fruits and vegetables.
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MedicalResearch.com Interview with:Edward Giovannucci, MD, ScD
Department of Nutrition
Harvard School of Public Health
Boston, MA
MedicalResearch: What are the main findings of the study?Dr. Giovannucci: In 50,000 men followed over 24 years, we found that those regularly consuming tomato products, which are high in lycopene, had a 30% lower risk of developing lethal prostate cancer. Among men being screened regularly with PSA, the risk reduction from high tomato consumption was 50%. We also examined the prostate cancer tissue and found that higher dietary lycopene intake was associated with less new blood vessel formation, which may help explain why the cancers were less likely to progress.
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