20名肺癌患者手术后服用核糖核酸(RNA)制剂,经3年临床跟踪观察证实,在服用RNA制剂2～5个疗程后,病人的白细胞(WBC)计数、血沉(ESR)、免疫球蛋白(IgG、IgA、IgM)、淋巴细胞亚群CD4、CD8和超氧歧化酶(SOD)诸项指标的稳定率为100%.服用RNA患者1年内均生存,2年生存率为95%,3年生存率为75%;而术后仅用化疗的20名对照组病人的1年生存率为80%;2年生存率为50%;3年生存率为35%.两组有显著差异. Twenty lung cancer patients took ribonucleic acid (RNA) preparations after surgery. After 3 years of clinical follow-up observation, the patient’s white blood cell (WBC) count, ESR, and immunoglobulin were measured after 2 to 5 courses of RNA preparation. The IgG, IgA, IgM, lymphocyte subsets, CD4, CD8, and superoxide dismutase (SOD) markers were stable at 100%. All patients who took RNA survived within 1 year, and the 2-year survival rate was 95% for 3 years. The survival rate was 75%; and the 20-year survival rate of the 20 control patients after chemotherapy alone was 80%; the 2-year survival rate was 50%; the 3-year survival rate was 35%. There was a significant difference between the two groups.