论文部分内容阅读
应用常规染色体畸变分析和胞浆分裂阻滞微核(cytokinesisblockmicronuclei,CBMN)法对10例接受单次卡铂(平均剂量为462.9mg/m2)和单次阿霉素(平均剂量为48.1mg/m2)化疗的乳癌病人血样进行了淋巴细胞染色体畸变(chromosomeaberation,CA)和微核(micronuclei,MN)的观察分析,并通过有丝分裂指数(mitoticindex,MI)及核分裂指数(nucleardivisionindex,NDI)观测了细胞毒性。结果表明,单次卡铂和阿霉素化疗均引起了CA和MN显著性增加,所观察到的CA主要为单体畸变,其中单体间隙(chromatidgap,ctg)的增加最为显著,染色体型畸变未见显著性变化;卡铂引起MI明显减低,阿霉素对MI的影响不显著;两种化疗药物均未对NDI产生显著性影响;通过MI及NDI测量的细胞毒性之间显著性相关,但CA分析和CBMN法测得的染色体损伤之间缺乏相关性。
Using routine chromosomal aberration analysis and cytokinesis block micronuclei (CBMN) method, 10 patients received a single carboplatin (mean dose of 462.9 mg/m2) and a single doxorubicin (average dose of 48). 1.1mg/m2) Chemotherapy in breast cancer patients were observed for lymphocyte chromosomal aberration (CA) and micronuclei (MN), and the mitotic index (MI) and nuclear index (NDI) were obtained. Cytotoxicity was observed. The results showed that single carboplatin and adriamycin chemotherapy caused a significant increase in CA and MN. The observed CA was mainly monomeric aberrations. The increase of chromatidgap (ctg) was the most significant, and the chromosomal aberrations were observed. No significant changes were observed; carboplatin caused a significant reduction in MI, and doxorubicin had no significant effect on MI; neither chemotherapeutic agent had a significant effect on NDI; the cytotoxicity measured by MI and NDI was significantly correlated. However, there is a lack of correlation between CA analysis and chromosome damage measured by the CBMN method.