黄花艾Artemisia princeps Pampan全草提取物在中医用于治疗炎症、腹泻及多种循环系统疾病。作者从该植物的甲醇提取物中分离出一活性成分,能抑制脂多糖(LPS)激活的RAW 264.7鼠巨噬细胞株产生NO。黄花艾的干植株室温下用甲醇提取,浓缩得糖浆状物质,悬浮于水中,依次以二氯甲烷和乙酸乙酯萃取,二氯甲烷部分经硅胶柱 Artemisia princeps Pampan extract is used in traditional Chinese medicine to treat inflammation, diarrhea and various circulatory diseases. The authors isolated an active ingredient from the methanol extract of the plant that inhibits LPS-activated RAW 264.7 murine macrophage strains to produce NO. The dried plants of A. lindenii were extracted with methanol at room temperature and concentrated to give a syrupy substance, which was suspended in water and extracted sequentially with dichloromethane and ethyl acetate. The dichloromethane portion was passed through a silica gel column.