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Published on: September 20, 2016
Gene-nutrient interactions in cancer etiology
Susan A Nowell1, Jiyoung Ahn, Christine B Ambrosone
1Department of Epidemiology, Roswell Park Cancer Institute, Elm Street, Buffalo, NY 14263, USA.
Genetic differences may explain why studies on diet and cancer risk are inconsistent. This review examines meat, fruits, and vegetables
Area of Science:
- Nutritional epidemiology
- Cancer research
- Human genetics
Background:
- Epidemiologic studies on diet and cancer risk yield inconsistent results.
- Genetic heterogeneity within study populations may obscure true associations.
- Food-borne compounds can be metabolized into mutagens, influencing cancer risk.
Purpose of the Study:
- To review literature on meat consumption and cancer risk (colon, breast, prostate).
- To explore the role of genetic variations in metabolizing enzymes and oxidative stress genes.
- To discuss the impact of fruit and vegetable intake on breast cancer risk.
Main Methods:
- Literature review of epidemiologic studies.
- Focus on genetic polymorphisms and enzyme phenotypes.
- Analysis of dietary components like meat, fruits, and vegetables.
Main Results:
- Inconsistencies in dietary component-cancer risk associations may stem from genetic heterogeneity.
- Specific genotypes influence the metabolism of food-borne promutagens, affecting cancer risk.
- Genetic variants in oxidative stress genes are relevant to breast cancer risk.
Conclusions:
- Genetic factors play a crucial role in moderating the relationship between diet and cancer.
- Understanding genetic heterogeneity is essential for resolving inconsistencies in nutritional epidemiology.
- Personalized dietary recommendations considering genetic profiles may improve cancer prevention strategies.
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