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Article Publish Status: FREE
Abstract Title:

Renal cell carcinoma risk associated with lower intake of micronutrients.

Abstract Source:

Cancer Med. 2018 08 ;7(8):4087-4097. Epub 2018 Jul 2. PMID: 29968964

Abstract Author(s):

Cathryn H Bock, Julie J Ruterbusch, Andreana N Holowatyj, Susan E Steck, Alison L Van Dyke, Won Jin Ho, Michele L Cote, Jonathan N Hofmann, Faith Davis, Barry I Graubard, Kendra L Schwartz, Mark P Purdue

Article Affiliation:

Cathryn H Bock

Abstract:

Kidney cancer incidence in African Americans (AA) is higher than among European Americans (EA); reasons for this disparity are not fully known. Dietary micronutrients may have a protective effect on renal cell carcinoma (RCC) development by inhibiting oxidative DNA damage and tumor growth. We evaluated whether any micronutrient associations differed by race in the US Kidney Cancer Study. 1142 EA and AA RCC cases and 1154 frequency-matched controls were enrolled in a population-based case-control study between 2002 and 2007. Dietary micronutrient intake was derived from an interviewer-administered diet history questionnaire. RCC risk associated with micronutrient intake was estimated using adjusted odds ratios from logistic regression comparing lower to highest quartiles of intake and sample weighting. Inverse associations with RCC risk were observed forα-carotene, β-carotene, lutein zeaxanthin, lycopene, vitamin A, folate, thiamin, vitamin C, α-tocopherol, β-tocopherol, γ-tocopherol, and selenium. A trend for β-cryptoxanthin was suggested among EA but not AA or the total sample (P-interaction = .04). Otherwise, findings did not differ by race, gender, age, or smoking status. The increase in RCC risk associated with lower micronutrient intake is similar within AA and EA populations. A diet rich in sources of micronutrients found in fruits, vegetables, and nuts may help to reduce the overall risk of RCC.

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