Search for dissertations about: "P-glycoprotein"

Showing result 11 - 15 of 49 swedish dissertations containing the word P-glycoprotein.

2. 11. Blood-Brain Barrier Transport : Investigation of Active Efflux using Positron Emission Tomography and Modelling Studies

   Author : Stina Syvänen; Margareta Hammarlund-Udenaes; Mats Bergström; Gunnar Blomquist; Jashvant Unadkat; Uppsala universitet; []
   Keywords : Pharmaceutical biosciences; pharmacokinetics; P-glycoprotein; blood-brain barrier; modelling; PET; active efflux; species differences; [11C]verapamil; drug development; Farmaceutisk biovetenskap;

   Abstract : This thesis examines the transport of exogenous molecules across the blood-brain barrier (BBB), focusing on active efflux, using positron emission tomography (PET), computer simulation and modelling. P-glycoprotein (P-gp) inhibition was studied using [11C]verapamil and [11C]hydroxyurea was investigated as a new marker for active efflux transport. READ MORE

4. 12. Pharmacology and resistance mechanisms of nucleoside analogues and topoisomerase II interactive agents : studies on human leukemia cells with a focus on cross-resistance

   Author : Kourosh Lotfi; Rolf Larsson; Linköpings universitet; []
   Keywords : Nucleoside analogue; cross-resistance; multidrug resistance; deoxycytidine kinase; leukemia; anthracyclines; P-glycoprotein; MEDICINE; MEDICIN;

   Abstract : The purpose of this thesis was to elucidate mechanisms of action and resistance of clinically relevant nucleoside analogues and topoisomerase interactive agents in human leukemia cell lines and leukernia cells isolated from peripheral blood of leukemia patients. Interactions and cross-resistance patterns of these different cytotoxic drug families were also studied since these drugs are usually administrated in combination in the clinic. READ MORE

5. 13. Pericyte Influence on Drug Delivery Across the Blood-Brain Barrier : Implications for Therapy of Neurodegenerative Diseases

   Author : Nebojsa Mihajlica; Margareta Hammarlund-Udenaes; Christer Betsholtz; William Elmquist; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Blood-brain barrier; pericytes; pericyte-deficiency; pharmacokinetics; small-molecular drugs; drug distribution; transporters; P-glycoprotein; tyrosine kinase inhibitors; Farmakokinetik och läkemedelsterapi; Pharmacokinetics and Drug Therapy;

   Abstract : The blood-brain barrier (BBB) represents a complex interface between the brain parenchyma and systemic blood circulation, strictly controlling exchange of substances between the two sites. Pericytes are mural cells located on the abluminal membrane of the brain endothelium, involved in BBB formation and maintenance. READ MORE

6. 14. In Vivo Active Drug Uptake and Efflux at the Blood-Brain Barrier : With Focus on Drug Transport Interactions

   Author : Muhammad Waqas Sadiq; Margareta Hammarlund-Udenaes; Sven Björkman; N. Joan Abbott; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Blood-brain barrier; Active uptake transport; Microdialysis; P-glycoprotein; Drug interactions; Species differences; Pharmacokinetics; Pharmacodynamics; NONMEM; Pharmaceutical Science; Farmaceutisk vetenskap;

   Abstract : The blood-brain barrier (BBB) controls the movement of substances into and out of the brain. The tight junctions between endothelial cells and energy dependent transporters in the BBB influence rate and extent of drug distribution to the brain. READ MORE

7. 15. Pharmacological properties of radiotracers that measure p-glycoprotein function and density

   Author : Pavitra Kannan; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Energy-dependent transporters of the ATP-binding cassette (ABC) family regulate the movement of molecules across cellular membranes. Several of these transporters are expressed in the endothelial cells of brain microvessels (blood-brain barrier) to protect brain tissue from exposure to toxins in the blood. READ MORE