イワモト　タカユキ   Takayuki Iwamoto   岩本　高行    所属   川崎医科大学  医学部 臨床医学　乳腺甲状腺外科学    職種   講師
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Effects of lifestyle and single nucleotide polymorphisms on breast cancer risk: a case-control study in Japanese women.
掲載誌名	正式名：BMC cancer 略　 称：BMC Cancer ISSNコード：14712407/14712407
掲載区分	国外
巻・号・頁	13,pp.565
著者・共著者	Taeko Mizoo, Naruto Taira, Keiko Nishiyama, Tomohiro Nogami, Takayuki Iwamoto, Takayuki Motoki, Tadahiko Shien, Junji Matsuoka, Hiroyoshi Doihara, Setsuko Ishihara, Hiroshi Kawai, Kensuke Kawasaki, Youichi Ishibe, Yutaka Ogasawara, Yoshifumi Komoike, Shinichiro Miyoshi
発行年月	2013/12
概要	BACKGROUND:Lifestyle factors, including food and nutrition, physical activity, body composition and reproductive factors, and single nucleotide polymorphisms (SNPs) are associated with breast cancer risk, but few studies of these factors have been performed in the Japanese population. Thus, the goals of this study were to validate the association between reported SNPs and breast cancer risk in the Japanese population and to evaluate the effects of SNP genotypes and lifestyle factors on breast cancer risk.METHODS:A case-control study in 472 patients and 464 controls was conducted from December 2010 to November 2011. Lifestyle was examined using a self-administered questionnaire. We analyzed 16 breast cancer-associated SNPs based on previous GWAS or candidate-gene association studies. Age or multivariate-adjusted odds ratios (OR) and 95% confidence intervals (95% CI) were estimated from logistic regression analyses.RESULTS:High BMI and current or former smoking were significantly associated with an increased breast cancer risk, while intake of meat, mushrooms, yellow and green vegetables, coffee, and green tea, current leisure-time exercise, and education were significantly associated with a decreased risk. Three SNPs were significantly associated with a breast cancer risk in multivariate analysis: rs2046210 (per allele OR=1.37 [95% CI: 1.11-1.70]), rs3757318 (OR=1.33[1.05-1.69]), and rs3803662 (OR=1.28 [1.07-1.55]). In 2046210 risk allele carriers, leisure-time exercise was associated with a significantly decreased risk for breast cancer, whereas current smoking and high BMI were associated with a significantly decreased risk in non-risk allele carriers.CONCLUSION:In Japanese women, rs2046210 and 3757318 located near the ESR1 gene are associated with a risk of breast cancer, as in other Asian women. However, our findings suggest that exercise can decrease this risk in allele carriers.
DOI	10.1186/1471-2407-13-565
PMID	24289300