The tumor size of mice increased 3.3 times in untreated group. AZT, radiotherapy and AZT combined with radiotherapy reduced tumor volume of 26.3%,36.8% and 70.5%.

• 未治疗组小鼠肿瘤体积增加了 2 .；5倍；而 AZT组、放疗组及 AZT联合放疗组肿瘤体积分别缩小了 2 6