This text is a report of the results of the clinical research of the 485 cases of the tumorous and cancerous patients.The
observation was made by means of the random and double-blind method on the effects of PSP on such symptoms of the patients as weakness and tiredness,poor appetite,dry mouth and throat and pains of various kinds. The results showed that there were marked improvements in the symptoms of the patients in the PSP group.By means of Karnofeky's evaluation, the differences between patients' bodily weights before and after the treatment with PSP on the quality of life showed that the raised and stable cases in the PSP group were obviously greater than those in the control group.By determining the NK cell activities,the amount of IL-2 and CD=4/CD+8 ratios, the results showed that the raised and stable cases in the PSP group after treatment were obviously more than those in the control group.This fact proved that PSP could resist the inhibitory effects of the drimunological functions due to chemotherapy and radiotherapy.Besides,determination was also made of the changes of the hemograms of the patients undergoing chemotherapy and radiotherapy.Whether the white blood cells,hemoglobulin or the numbers of the platelets were all similar to those of the positive control group.This suggested that PSP just the same as the positive drugs had a definite protective function on the hemograms.