Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Gitte Juel Friis"'
Publikováno v:
Wound Repair and Regeneration. 14:233-239
Wound pain is a serious problem for elderly patients suffering from chronic leg ulcers, and it may lead to reduced wound healing rates and reduced quality of life. Biatain-Ibu Non-adhesive (Coloplast A/S), a new pain-reducing moist wound healing dres
Autor:
Charlotte Adrian, Lene Just, Susan Weng, Dorrit Høj Larsen, Bernie Moss, Gitte Juel Friis, Karin Fredholt
Publikováno v:
Journal of Controlled Release. 63:261-273
The Leu-enkephalin analogue (Tyr-D-Ala-Gly-Phe-Leu-NH(2)) was synthesized together with three esters prodrugs hereof. The prodrugs synthesized were the O-acetyl, O-propionyl and O-pivaloyl99%) and in good yields (60-75%). The chemical and enzymatic s
Publikováno v:
European Journal of Pharmaceutical Sciences. 7:317-323
Four N-terminal 4-imidazolidinone prodrugs of Leu-enkephalin are prepared and characterized. Their enzymatic and chemical stability are assessed using high-performance liquid chromatography. The prodrug derivatives are shown to degrade stoichiometric
Publikováno v:
International Journal of Pharmaceutics. 178:223-229
Desmopressin [1-(mercaptopropanoic acid)-8-D-arginine vasopressin; dDAVP] is a vasopressin analogue with a selective antidiuretic effect. The oral bioavailability of desmopressin is limited due both to its high hydrophilicity leading to a low intesti
Publikováno v:
Pharmaceutical Research. 16:24-29
Purpose. To evaluate the chemical and enzymatic stability, as well as the cellular permeation characteristics, of the acyloxyalkoxy-based cyclic prodrugs \(\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{1} \) and \(\underset{\raise0.3em\h
Publikováno v:
International Journal of Pharmaceutics. 172:97-101
In this study, the stability in and transport across a cell culture model of the blood–brain barrier (BBB) is investigated for leucine–enkephalin (Leu–enkephalin) and four 4-imidazolidinone prodrugs of Leu–enkephalin. The results show that Le
Publikováno v:
International Journal of Pharmaceutics. 154:157-165
The feasibility of achieving buccal delivery of morphine using the prodrug approach was assessed by studies of bioactivation, in vitro permeation and in vivo absorption. The bioactivation of various morphine-3-esters was studied in human plasma and s
Publikováno v:
International Journal of Pharmaceutics. 136:61-69
Two N-Z-protected dipeptides were N-hydroxymethylated at the C-terminal peptide bond. The stability of the derivatives was investigated in aqueous buffer solutions as a function of pH. The compounds degraded quantitatively to their parent N-Z-protect
Autor:
Gitte Juel Friis, Hans Bundgaard
Publikováno v:
European Journal of Pharmaceutical Sciences. 4:49-59
Using phenyl phoshonate and phenyl phosphate as model compounds for drugs containing these moieties a new type of α-acyloxyalkyl ester derivatives of the OH-groups are introduced. The derivatives both mask the negative charge of these compounds and
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 3:809-812
N-Hydroxymethylation of the N-terminal peptide bond in N-acetyl-L-phenylalanine amides was found to protect the C-terminal amide bond against cleavage by α-chymotrypsin. The N-hydroxymethyl derivatives are readily bioreversible, undergoing spontaneo