CHENG Jian-ming1, CHEN Xin-min1, PENG Wen-wen1, et al. Investigation of in vitro Release and Transdermal Permeability Characteristics of Danhuang Gel[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(18): 24-26.
CHENG Jian-ming1, CHEN Xin-min1, PENG Wen-wen1, et al. Investigation of in vitro Release and Transdermal Permeability Characteristics of Danhuang Gel[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(18): 24-26. DOI: 10.13422/j.cnki.syfjx.2012.18.025.
Objective:To study on characteristics of in vitro release and transdermal penetration of Danhuang gel.Method:Modified Franz diffusion cell was used
with berberine and chrysophanol as indexes
in vitro drug release and percutaneous penetration laws of index components were described by kinetic model.Result:Release of chrysophanol could be fitted best by zero-power kinetics model
but berberine by Ritger-Peppas model;Penetration of chrysophanol and berberine in vitro skin were best by fitting for one-power kinetics model;Relevant linear equation of in vitro release and transdermal penetration for chrysophanol could be described as Y=0.468 7X+4.972 2(r=0.966 4)
berberine as Y=0.666 9X+2.487 4(r=0.974 0)
and in vitro release rate was higher than in vitro transdermal rate of two index components in Danhuang gel.Conclusion:In vitro release and transdermal penetration of berberine and chrysophanol had a good linear correlation.