Immunological regulation of Phellinus igniarius crude polysaccharides to tumor bearing mice
火针层孔菌（桑黄）粗多糖对荷瘤小鼠的免疫调节研究

This paper deals with different immunological regulation effects of Phellinus igniarius crude polysaccharides on tumor-bearing mice. The tumor bearing mice were divided into four groups at random: crude exo-polysaccharide treatment group, mycelium crude polysaccharide treatment group, fruit body crude polysaccharide treatment group and negative group. The treated mice were killed in 10 days and the activity of natural killer cells (NK) and the lymphocyte proliferation were investigated. The results indicate...