Meiho University Institutional Repository:Item 987654321/1273
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    题名: Joint effect of peroxisome proliferator-activated receptor c genetic polymorphisms and estrogen-related risk factors on breast cancer risk:results from a case-control study in Taiwan
    作者: Mei-Hsuan Wu;Chi-Hong Chu;Yu-Ching Chou;Wan-Yun Chou;Tsan Yang;Giu-Cheng Hsu;Cheng-Ping Yu;Jyh-Cherng Yu;Chien-An Sun
    关键词: Breast cancer;Case–control study;Haplotype;Polymorphism;Peroxisome proliferatoractivated receptor c
    日期: 2011
    上传时间: 2011-09-30T08:05:02Z (UTC)
    摘要: eroxisome proliferator-activated receptor c
    (PPARc) has been linked with possible antineoplastic effects in colorectal carcinogenesis. However, data for the
    possible link between PPARc and breast cancer risk are sparse. We assessed the association of three polymorphisms
    in PPARc (rs10865710 [C-681T], rs1805192
    [Pro12Ala], and rs3856806 [C1431T]) with the risk of breast cancer in an ethnic Chinese female population in Taiwan. In addition, interactions with estrogen exposures
    were also explored. Genotypes for the PPARc polymorphisms were determined on 291 incident breast cancer cases and 589 matched controls by fluorogenic 50-nuclease assay. The at-risk haplotypes were defined according to the three polymorphisms in the following order: C-681T, Pro12Ala, and C1431T, which include CCT, GGT, and GGC. In addition, a critical period of estrogen exposure was estimated by the interval between age at menarche and age at first full-term pregnancy. Overall, there was no
    evidence of a significant impact of individual polymorphisms of PPARc on breast cancer risk. However, the haplotype analysis revealed that women harboring at-risk
    haplotypes showed a significant 67% increase in breast cancer risk [adjusted odds ratio (OR) 1.67; 95% confidence interval (CI) 1.11–2.52]. Furthermore, there was a significant joint effect of estrogen exposure-related factors and atrisk
    haplotypes of PPARc on breast cancer risk (adjusted OR 4.04; 95% CI 1.89–8.65), particularly in premenopausal women. The present study implicates a role for PPARc in breast cancer risk. Mechanistic studies to fully elucidate the mechanisms underlying PPARc’s effects should be pursued in future investigations.
    關聯: Breast Cancer Res Treat (2011) 127:777–784
    显示于类别:[健康事業管理系 ] 期刊論文

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