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학술저널
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연세대학교 의과대학 Yonsei Medical Journal Yonsei Medical Journal 제60권 제1호
발행연도
2019.1
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30 - 37 (8page)

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Purpose: The present study aimed to investigate correlations between uridine glucuronosyltransferase 2B7 (UGT2B7) -161 singlenucleotide polymorphism C to T (C>T) and the occurrence of cardiotoxicity in Chinese breast cancer (BC) patients undergoingepirubicin/cyclophosphamide-docetaxel (EC-D) adjuvant chemotherapy. Materials and Methods: 427 BC patients who had underwent surgery were consecutively enrolled in this prospective cohortstudy. All patients were scheduled to receive EC-D adjuvant chemotherapy regimen, and they were divided into UGT2B7 -161 CC(n=141), UGT2B7 -161 CT (n=196), and UGT2B7 -161 TT (n=90) groups according to their genotypes. Polymerase chain reactionwas performed for determination of UGT2B7 -161 genotypes. Cardiotoxicity was defined as an absolute decline in left ventricularejection fraction (LVEF) of at least 10% points from baseline to a value less than 53%, heart failure, acute coronary artery syndrome,or fatal arrhythmia. Results: LVEF values were lower at cycle (C) 4, C8, 3 months after chemotherapy (M3), M6, M9, and M12 compared to C0 (allp<0.001), in BC patients undergoing EC-D adjuvant chemotherapy. Cardiotoxicity was recorded for 4.2% of the overall populationand was lowest in the UGT2B7 -161 TT group (1.1%), compared to UGT2B7 -161 CT (3.1%) and UGT2B7 -161 CC (7.8%) group(p=0.026). Multivariate logistic regression revealed that UGT2B7 -161 T allele could independently predict a low occurrence ofcardiotoxicity in BC patients undergoing EC-D adjuvant chemotherapy (p=0.004). Conclusion: A UGT2B7 -161 T allele serves as a potential biomarker for predicting a low occurrence of cardiotoxicity in BC patientsundergoing EC-D adjuvant chemotherapy.

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