Yi Lan

Yan-yan Chen2
Ye-wen Zhang2
2Yan-yan Chen
2Ye-wen Zhang
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Our previous studies had confirmed that the essential oil from Zanthoxylum bungeanum Maxim. (Z. bungeanum oil) could effectively enhance the percutaneous permeation of drug molecules as a natural transdermal penetration enhancer. The aim of the present study is to investigate and compare the skin penetration enhancement effect of Z. bungeanum oil and its(More)
The aim of this present study is to investigate the effect of Zanthoxylum bungeanum oil (essential oil from Z. bungeanum Maxim.) on cytotoxicity and the transdermal permeation of 5-fluorouracil and indomethacin. The cytotoxicity of Z. bungeanum oil on dermal fibroblasts and epidermal keratinocytes was studied using an MTT(More)
Based on our research results of many years, we presented the concepts and definitions of " differential and integral of courseware " , " differential points of knowledge " , " knowledge differential points database " and " degree of difficulty " , also a courseware broadcasting tree structure of second generation CAI—irregular X-tree network and its(More)
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