MTHFR polymorphisms and breast cancer risk.

MTHFR polymorphisms and breast cancer risk.
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DOI:
10.5114/aoms.2011.20618
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发表时间:
2011-02
期刊:
Archives of medical science : AMS
影响因子:
--
通讯作者:
Ebrahimi A
Ebrahimi A
中科院分区:
其他
文献类型:
--
作者:
Hosseini M;Houshmand M;Ebrahimi A

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5,10-亚甲基四氢叶酸还原酶(MTHFR)基因C677T和A1298C的两个功能性单核苷酸多态性(snp)导致酶活性降低,影响肿瘤细胞的化学敏感性。我们利用基于pcr - rflp的检测方法,在一项伊朗散发性乳腺癌人群病例对照研究中评估了这两种常见多态性与乳腺癌风险的相关性,该研究包括294例乳腺癌病例和306例对照。对患者和对照组的分析显示,纯合子基因型MTHFR 677CC在两组中频率最高(患者28.3%,对照组25.3%)。MTHFR 677CT基因型和MTHFR 1298AC基因型是我们人群中具有统计学意义的危险因素(优势比:1.6,95% CI: 1.019-2.513, p = 0.041;优势比:2.575,95% CI: 1.590-4.158, p = 0.001)。根据我们的研究结果,我们可以得出结论,乳腺癌与C677T和A1298C多态性可能存在显著关联。
Two functional single nucleotide polymorphisms (SNPs) in the 5,10-methylenetetrahydrofolate reductase (MTHFR) gene, C677T and A1298C, lead to decreased enzyme activity and affect chemosensitivity of tumour cells. We evaluated these two common polymorphisms and breast cancer risk association in an Iranian sporadic breast cancer population-based case-control study of 294 breast cancer cases and 306 controls using a PCR-RFLP-based assay. Analyses of affected and controls show that homozygote genotype MTHFR 677CC has the highest frequency in both groups (28.3% in patients and 25.3% in control group). Genotype MTHFR 677CT and genotype MTHFR 1298AC were found to be statistically significant risk factors in our population (odds ratio: 1.6, 95% CI: 1.019-2.513, p = 0.041; and odds ratio: 2.575, 95% CI: 1.590-4.158, p = 0.001 respectively). We can conclude based on the results of our study that a significant association between breast cancer and C677T and A1298C polymorphism might exist.
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