中性白细胞攻击进入体内异物的手段是释放活性氧,衰老及服用药物可引起中性白细胞功能降低,从而发生感染。在从食物中筛选中性白细胞活化因子时,发现紫玉簪(Hosta sieboldiana)具有显著活性,从其甲醇提取物中分离得到活性物质。 The means by which neutrophils attack foreign bodies into the body is the release of reactive oxygen species. Aging and taking drugs can cause a decrease in the function of neutrophils and thus cause infection. When screening for neutrophil activator from food, it was found that hostia sieboldiana has significant activity and the active substance was isolated from its methanol extract.