Sökning: "pH-dependent permeability"

Hittade 4 avhandlingar innehållade orden pH-dependent permeability.

  1. 1. Refined in vitro Models for Prediction of Intestinal Drug Transport : Role of pH and Extracellular Additives in the Caco-2 Cell Model

    Författare :Sibylle Neuhoff; Per Artursson; Anna-Lena Ungell; Patrick Augustijns; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacy; Caco-2 cells; membrane permeability; drug permeation; drug efflux ratios; drug uptake ratios; Cremophor EL; bovine serum albumin; pH-dependent permeability; drug transport; FARMACI; PHARMACY; FARMACI;

    Sammanfattning : Drug transport across the intestinal epithelium is roughly predicted from permeability values obtained from Caco-2 cell monolayers. This thesis examines the important role of pH and extracellular additives for increasing the reliability and predictivity of the in vitro screening system, Caco-2. LÄS MER

  2. 2. Computational and Experimental Models for the Prediction of Intestinal Drug Solubility and Absorption

    Författare :Christel A. S. Bergström; Per Artursson; Han van de Waterbeemd; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutics; aqueous drug solubility; melting point; intestinal drug permeability; pH-dependent solubility; multivariate data analysis; molecular descriptors; molecular surface area; in silico modeling; drug absorption; Galenisk farmaci; Pharmaceutics; Galenisk farmaci;

    Sammanfattning : New effective experimental techniques in medicinal chemistry and pharmacology have resulted in a vast increase in the number of pharmacologically interesting compounds. However, the number of new drugs undergoing clinical trial has not augmented at the same pace, which in part has been attributed to poor absorption of the compounds. LÄS MER

  3. 3. Structure and stability of liposomes : Interactions with micelle- forming surfactants

    Författare :Mats Silvander; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Physics; Fysik; Physics; Fysik; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : The stability of phospholipid lipomes interacting with micelle-forming surfactants was studied under physiological conditions (150 mM NaCl and pH=7.4 unless otherwise stated) mainly by use of cryo-TEM and fluorescence. LÄS MER

  4. 4. Virus-host interactions : entry and replication of Crimean-Congo hemorrhagic fever virus

    Författare :Cecilia Andersson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Sammanfattning : Crimean-Congo hemorrhagic fever (CCHF) is a severe acute human disease with potential lethal outcome caused by a virus, Crimean-Congo hemorrhagic fever virus (CCHFV). Not much is known regarding how CCHFV infects cells, replicates and why it cause vascular dysfunction. LÄS MER