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地肤子水提物５００ｍｇ／ｋｇ使小鼠碳粒廓清速率明显降低，同时减少肝脏和脾脏对碳粒的摄取；地肤子１００，５００ｍｇ／ｋｇ能明显抑制腹腔巨噬细胞对鸡红细胞（ＣＲＢＣ）的吞噬作用，对ＰＣ诱导的迟发型超敏反应（ＰＣ－ＤＴＨ）及绵羊红细胞诱导的迟发型超敏反应（ＳＲＢＣ－ＤＴＨ）的诱导相及效应相均有一定的抑制趋势，但对二甲苯所致的炎症反应却无明显影响。表明地肤子水提物抑制单核巨噬系统的吞噬功能及迟发型超敏反应（ＤＴＨ），其抑制ＤＴＨ的作用机制可能与它对单核巨噬系统功能的抑制有关。
Kochia scoparia water extract 500mg/kg significantly reduced the rate of carbon clearance in mice, while reducing the liver and spleen uptake of carbon particles; Kochia scoparia 100,500mg/kg can significantly inhibit the peritoneal macrophages on chicken red blood cells (CRBC The phagocytic effects of PCA on PC-DTH and erythrocyte induced delayed-type hypersensitivity (SRBC-DTH) induced phase and effect phase all showed a tendency of inhibition, but Toluene-induced inflammation did not have a significant effect. It was suggested that Kochia scoparia water extract inhibited the phagocytic function and delayed type hypersensitivity (DTH) of monocyte-macrophage system, and its mechanism of inhibition of DTH may be related to its inhibition of mononuclear macrophage system function.