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Authors
Selzer, DominikNeumann, Dirk
Neumann, Heike
Kostka, Karl-Heinz
Lehr, Claus-Michael
Schaefer, Ulrich F
Issue Date
2015-09
Metadata
Show full item recordAbstract
For some time, in-silico models to address substance transport into and through the skin are gaining more and more importance in different fields of science and industry. In particular, the mathematical prediction of in-vivo skin absorption is of great interest to overcome ethical and economical issues. The presented work outlines a strategy to address this problem and in particular, investigates in-vitro and in-vivo skin penetration experiments of the model compound flufenamic acid solved in an ointment by means of a mathematical model. Experimental stratum corneum concentration-depth profiles (SC-CDP) for various time intervals using two different in-vitro systems (Franz diffusion cell, Saarbruecken penetration model) were examined and simulated with the help of a highly optimized three compartment numerical diffusion model and compared to the findings of SC-CDPs of the in-vivo scenario. Fitted model input parameters (diffusion coefficient and partition coefficient with respect to the stratum corneum) for the in-vitro infinite dose case could be used to predict the in-use conditions in-vitro. Despite apparent differences in calculated partition coefficients between in-vivo and in-vitro studies, prediction of in-vivo scenarios from input parameters calculated from the in-vitro case yielded reasonable results.Citation
A strategy for in-silico prediction of skin absorption in man. 2015, 95 (Pt A):68-76 Eur J Pharm BiopharmAffiliation
Helmholtz Institute for Pharmaceutical Research Saarland (HIPS);Saarland University, Building A4.1, 66123 Saarbruecken, Germany.PubMed ID
26022643Type
ArticleLanguage
enISSN
1873-3441ae974a485f413a2113503eed53cd6c53
10.1016/j.ejpb.2015.05.002
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