丹参脂溶性成分在Caco-2细胞模型中吸收机制研究

被引:24
作者
李莉
袁媛
蒋学华
机构
[1] 四川大学华西药学院
关键词
丹参酮; 脂溶性成分; Caco-2细胞模型; 吸收机制;
D O I
暂无
中图分类号
R285 [中药药理学];
学科分类号
100806 [中药药理学];
摘要
目的研究丹参脂溶性成分在Caco-2细胞模型中的吸收机制。方法以Caco-2细胞作为吸收研究模型,分别测定了各种条件下,包括分别以单体丹参酮ⅡA和丹参醇提取物给药、改变给药浓度、改变转运方向以及加入影响吸收的物质,丹参酮ⅡA,隐丹参酮和丹参酮Ⅰ的转运情况。结果给予不同剂量的丹参酮ⅡA,其表观通透系数Papp随浓度的增加先降低后升高; 丹参酮ⅡA细胞绒毛侧Apical→基底侧Basolateral转运(AP→BL)大于BL→AP 5倍以上;随着冰片含量增加,丹参脂溶性成分的 Papp明显增大;EDTA对吸收没有明显影响。结论丹参酮ⅡA在Caco-2细胞模型中的转运机制类似载体介导转运兼有被动扩散,无细胞旁路途径,无外排泵参与;冰片有促吸收的作用。本实验结果为含丹参的制剂研究、口服给药等提供信息。
引用
收藏
页码:108 / 112
页数:5
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