~.3H-TdR insert method was used for detection the serum of 62 malignant tumour patients which exerted an in-flunce on LAK cell LETHAL activity. The results showed: the mean of lethal rate was 65. 85 ?3. 55% in the group of 20 normal adults, the mean of lethal rate in the group of 62 malignan tumour patients was 49. 34?. 27%, both difference was significant (P<0. 01). The mean of lethal rate was 49. 60?6. 60% in the group of 48 patients whose tumour focus was clinic visible, com-pared with the normal group, the difference was obvious (P<0. 01) , the mean of lethal rate was 48. 47 ?5. 11% in the group of 14 patients who had not tumour focus of clinic visible, compared with the normal group, the difference was obvious (P<0. 01), but compared with the group of clinic visible tumour focus, it had not obvious difference (P>0. 05).
Chinese Clinical Oncology
Malignant tumour, Serum/patient, LAK cell, Lethal activity,Restrain material