Zobrazeno 1 - 10
of 212
pro vyhledávání: '"J.C. Verhoef"'
Autor:
Gerrit Borchard, Farid Abedin Dorkoosh, Hans E. Junginger, D. Blok, Morteza Rafiee-Tehrani, M.P.M. Stokkel, J.C. Verhoef
Publikováno v:
Journal of Controlled Release. 99:199-206
In recent years, many complex oral drug delivery systems have been developed using various polymers in order to achieve better drug targeting and drug absorption in the intestinal tract. Superporous hydrogel (SPH) and SPH composite (SPHC)-based drug
Publikováno v:
European Journal of Pharmaceutics and Biopharmaceutics. 57:77-83
N-Trimethyl chitosan chloride (TMC) is a soluble chitosan derivative that shows effective enhancing properties for peptide and protein drug transport across mucosal membranes. TMC was synthesized by reductive methylation of chitosan in an alkaline en
Autor:
J.C. Verhoef, Farid Abedin Dorkoosh, Morteza Rafiee-Tehrani, Hans E. Junginger, Jos H. M. Verheijden, Gerrit Borchard
Publikováno v:
International Journal of Pharmaceutics. 247:47-55
In this in vivo study, novel delivery systems based on superporous hydrogel (SPH) and SPH composite (SPHC) polymers were used to improve the intestinal absorption of insulin in healthy pigs. Six female pigs of approximately 35 kg body weight were use
Publikováno v:
Advanced Drug Delivery Reviews. 52:139-144
The striking advantage of mucosal vaccination is the production of local antibodies at the sites where pathogens enter the body. Because vaccines alone are not sufficiently taken up after mucosal administration, they need to be co-administered with p
Autor:
Morteza Rafiee-Tehrani, Hans E. Junginger, J.C. Verhoef, Farid Abedin Dorkoosh, Gerrit Borchard
Publikováno v:
Journal of Controlled Release. 71:307-318
Novel drug delivery systems were developed for peroral administration of peptide and protein drugs for site specific mechanical fixation at the gut wall and with specific release patterns. These so-called shuttle systems were designed by using superp
Publikováno v:
Journal of Pharmaceutical Sciences. 90:38-46
The synthesis and evaluation of mono-N-carboxymethyl chitosan (MCC) as an intestinal permeation enhancer for macromolecular therapeutics is presented. MCCs were synthesized from two different viscosity grade chitosans to yield both high and low visco
Publikováno v:
Journal of Chromatography B: Biomedical Sciences and Applications. 692:227-232
A rapid, selective and sensitive method for the determination of dihydroergotamine (DHE) in serum was developed. Dihydroergocristine (DHEC) was used as an internal standard. Human and rabbit serum samples were extracted using commercial solid-phase c
Autor:
H.L. Lueßen, A. G. De Boer, Claus-Michael Lehr, J.C. Verhoef, Hans E. Junginger, A.F Kotzé, C.-O. Rentel
Publikováno v:
Journal of Controlled Release. 45:15-23
The purpose of the study was to evaluate the inhibitory effect of the mucoadhesive polymers polycarbophil, chitosan and chitosan glutamate on trypsin and carboxypeptidase B (CPB) activity as well as their potential to improve the intestinal transport
Publikováno v:
European Journal of Pharmaceutics and Biopharmaceutics. 43:43-50
The effects of current density on the temperature dependence of the electrical properties of human stratum corneum were investigated in vitro at two different current densities: 13 and 130 μA cm −2 . To obtain information on the structural basis o
Publikováno v:
International Journal of Pharmaceutics. 141:151-160
The aim of the study was to determine the acute effects of nasal absorption enhancers on the morphology of the rat nasal epithelium in vivo. Examples of three classes of enhancers were studied: the cyclodextrins dimethyl-β-cyclodextrin 2% (w/v) and