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  • Title: XRCC1 and ADPRT polymorphisms associated with survival in breast cancer cases treated with chemotherapy.
    Author: Ye S, Rong J, Huang SH, Zheng ZS, Yun M, Wang SM.
    Journal: Asian Pac J Cancer Prev; 2012; 13(10):4923-6. PubMed ID: 23244082.
    Abstract:
    AIM: To investigate whether XRCC1 and ADPRT polymorphisms might be associated with outcomes of breast cancer. METHODS: A prospective study was conducted with a total of 335 breast cancer patients undergoing chemotherapy consecutively collected from Jan. 2005 to Jan. 2008. Genotyping of XRCC1 and ADPRT polymorphisms was conducted by PCR-RFLP assay. RESULTS: All 335 patients were followed up until death or the end of Jan. 2012, with a median follow-up period of 38.8 (2-64) months. It was shown that the variant genotype of XRCC1 399Gln/Gln was strongly significantly associated with a decreased risk of death from breast cancer, with an HR (95% CI) of 0.52 (0.28-0.91). Similarly, individuals carrying the ADPRT 762Ala/Ala demonstrated longer survival compared to ADPRT 762 Val/ Val, with an HR (95% CI) of 0.58 (0.31-0.97). Individuals with combination genotypes of XRCC1 399Gln allele and ADPRT 762Ala/Ala presented with a longer survival, the HR (95% CI) being 0.56 (0.32-0.97). CONCLUSION: We found a significant association between XRCC1399Gln/ Gln and ADPRT 762Ala/Ala polymorphisms and clinical outcomes. These two genotypes could be used as a surrogate markers of clinical outcome in glioma cases receiving chemotherapy.
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