Research Topics
| Joni J PalmgrénSummaryAffiliation: University of Kuopio Country: Finland Publications
| Collaborators |
Detail Information
Publications
Characterization of Caco-2 cell monolayer drug transport properties by cassette dosing using UV/fluorescence HPLCJoni J Palmgrén
Department of Pharmaceutical Chemistry, University of Kuopio, Kuopio, Finland
Eur J Pharm Biopharm 57:319-28. 2004..All drugs can be applied to the Caco-2 cell culture as a mixture, and the cassette dosing method is suitable for permeability studies...
Quantitative determination of cholesterol, sitosterol, and sitostanol in cultured Caco-2 cells by liquid chromatography-atmospheric pressure chemical ionization mass spectrometryJoni J Palmgrén
Department of Pharmaceutical Chemistry, University of Kuopio, P O B 1627, FIN 70211 Kuopio, Finland
J Chromatogr B Analyt Technol Biomed Life Sci 821:144-52. 2005..51 to 101.77%. The lowest limit of quantitation (LLOQ) was 0.225 microM for sitosterol and sitostanol, and 0.45 microM for cholesterol. The accuracy range was 95-106% and precision was lower than 9% for all LLOQ values...
Drug adsorption to plastic containers and retention of drugs in cultured cells under in vitro conditionsJoni J Palmgrén
Department of Pharmaceutical Chemistry, University of Kuopio, Kuopio, Finland
Eur J Pharm Biopharm 64:369-78. 2006..15%, 43.80%, 23.57% and 11.22% for atenolol, metoprolol, medetomidine, propranolol, midazolam, and diazepam, respectively. Overall, these findings will benefit development and validation of further in vitro drug permeation experiments...
Absorption properties and P-glycoprotein activity of modified Caco-2 cell linesTimo Korjamo
Department of Pharmaceutics, University of Kuopio, Harjulantie 1, P O Box 1627, FI 70211 Kuopio, Finland
Eur J Pharm Sci 26:266-79. 2005..Passive transcellular permeability was modestly elevated in all modified cell lines. In addition, several compounds showed pH-dependent permeability properties...
Liquid chromatographic-electrospray ionization mass spectrometric analysis of neutral and charged polyethylene glycolsJoni J Palmgrén
Department of Pharmaceutical Chemistry, University of Kuopio, P O B 1627, FIN 70211 Kuopio, Finland
J Chromatogr A 976:165-70. 2002..Paracellular pores are negatively charged and it was in our interest to characterize the interactions of positive charge and size of the molecules with the paracellular pores...
High-performance liquid chromatography/electrospray ionization tandem mass spectrometry for characterization of enzymatic degradation of 2,2'-bis(2-oxazoline)-linked poly-epsilon-caprolactoneMika Pulkkinen
Department of Pharmaceutics, University of Kuopio, Kuopio, Finland
Rapid Commun Mass Spectrom 22:121-9. 2008..This novel mass spectrometric method provides important knowledge about the enzymatic degradation process and structure of the polymer which is difficult to ascertain by other conventional methods...
