款冬酮抗过敏作用研究

被引:24
作者
李艳芳 [1 ]
陈雪园 [1 ]
熊卫艳 [1 ]
张如松 [1 ]
杨苏蓓 [2 ]
机构
[1] 浙江中医药大学
[2] 浙江省中药研究所
基金
浙江省自然科学基金;
关键词
款冬花; 款冬酮; 透明质酸; 肥大细胞; 离体回肠; 被动皮肤过敏反应; 迟发型超敏反应;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的:评价款冬酮的抗过敏作用。方法:通过CO2超临界流体萃取、硅胶柱层析等方法,从款冬花中分离制备款冬酮;采用透明质酸酶抑制实验、肥大细胞(mast cell,MC)脱颗粒实验、豚鼠离体回肠实验、小鼠被动皮肤过敏反应(PCA)实验及小鼠迟发型超敏反应(DTH)实验,观察款冬酮抗过敏的药理作用。结果:款冬酮能显著抑制透明质酸酶的活性,其高、中、低剂量组的抑制率分别为68.6%,45.3%,29.6%;款冬酮能显著抑制肥大细胞脱颗粒作用,其高、中、低剂量组的抑制率分别为100.0%,51.0%,0%;款冬酮能显著抑制组胺致豚鼠离体回肠收缩作用,其高、低剂量组抑制率分别为64.9%,44.1%;款冬酮高、低剂量对组胺致小鼠皮肤速发过敏反应的抑制率分别52.3%,41.6%;款冬酮高、低剂量对2,4-二硝基氯苯(DNCB)致小鼠耳肿胀抑制率分别为25.6%,6.2%。结论:款冬酮具有较强的抗过敏作用。
引用
收藏
页码:1517 / 1522
页数:6
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