a method for the preparation of anticancer active nitrogen containing polysaccharide from fungi of the genus coriolus and method for the preparation of a pharmaceutical preparation.

摘要

A method of restoring the immune response of a patient having a lowered immune response level is provided, in which the patient is given an effective amount of certain nitrogen-containing polysaccharides derived from Coriolus versicolor (Fr.) Quel, where the polymer units having a molecular weight of below about 5,000 have been removed therefrom.