皮肤渗透促进剂桉叶素的研究
Cineole as Skin Penetration Enhancer
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摘要: 研究了桉叶素促进5-氟尿嘧啶渗透通过离体大鼠皮肤的作用,其增加药物渗透系数约达93倍。桉叶素提高了分配系数,但对扩散系数的增加更大。去除角质层,药物的渗透障碍完全消失。与全皮相比,角质层去除后药物的渗透系数增加166倍,表明影响极性药物渗透的主要障碍是角质层。促渗效果可能是扩散和分配综合作用的结果,其中扩散是主要作用。Abstract: Cineole (1,8 cineole, eucalyptol) was evaluated as a penetration enhancer towards 5 fluorouracil (5 FU) using excised rat skin. It caused a near 93 fold increase in drug permeability coefficient. The enhancer gives increased partition coefficient but t