Search for dissertations about: "in vivo bioavailability"

Showing result 1 - 5 of 53 swedish dissertations containing the words in vivo bioavailability.

  2. 1. Pulmonary Drug Absorption : In vitro and in vivo investigations of drug absorption across the lung barrier and its relation to drug physicochemical properties

    Author : Ann Tronde; Gerrit Borchard; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacy; lung; pulmonary; drug delivery; inhalation; drug transport; pharmacokinetics; absorption; bioavailability; drug metabolism; preclinical; rat; in vivo; isolated and perfused lung; Caco-2; nebulization catheter; aerosol; physicochemical; peptide; efflux; FARMACI; PHARMACY; FARMACI; Biopharmaceutics; biofarmaci;

    Abstract : Although, pulmonary drug delivery is a well established means for targeting of drugs to the lungs for the treatment of respiratory diseases as well as for the systemic delivery of volatile anesthetic agents, drug absorption kinetics in the lung have not been subjected to extensive research. The main objective of this thesis was to investigate drug absorption characteristics of the lung barrier, using the isolated and perfused rat lung model and in vivo pharmacokinetic studies in rats. READ MORE

  4. 2. Investigation and Prediction of Small Intestinal Precipitation of Poorly Soluble Drugs : a Study Involving in silico, in vitro and in vivo Assessment

    Author : Sara Carlert; Hans Lennernäs; Bertil Abrahamsson; Patrick Augustijns; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; gastrointestinal precipitation; crystallization; crystal nucleation; crystal growth; classical nucleation theory; poorly soluble drugs; drug absorption; biopharmaceutics classification system; in vitro in vivo correlations IVIVC ; in silico prediction; human intestinal fluid; dog intestinal fluid; simulated intestinal fluid; Biofarmaci; Biopharmaceutics;

    Abstract : The main objectives of the present project were to increase the understanding of small intestinal precipitation of poorly soluble pharmaceutical drugs, investigate occurrence of crystalline small intestinal precipitation and effects of precipitation on absorption. The aim was to create and evaluate methods of predicting crystalline small intestinal drug precipitation using in vivo, in vitro and in silico models. READ MORE

  5. 3. In vitro Bioaccessibility of Carotenes: Influence of microstructure in tomato and carrot as modified by processing

    Author : Cecilia Svelander; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; α-carotene; in vitro bioaccessibility; high-pressure homogenisation; carrot; in vivo bioavailability; Caco-2 cell model; blanching; processing; Lycopene; β-carotene; tomato; microstructure;

    Abstract : Carotenes are a group of fat-soluble pigments in many fruits and vegetables associated with several important biological effects, like protection against the development of some forms of cancer and cardiovascular disease. The carotene bioavailability in plant foods, i.e. READ MORE

  6. 4. First-pass Intestinal Metabolism of Drugs : Experiences from in vitro, in vivo and simulation studies

    Author : Helena Anna Thörn; Hans Lennernäs; Paul Alfred Dickinson; Brian Houston; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pharmacokinetics; metabolism; CYP3A4; CYP2C9; CYP2D6; UGT; glucuronidation; physiologically based pharmacokinetic model; modelling; Biopharmaceutics; Biofarmaci;

    Abstract : The bioavailability of a drug can be described as the fraction of an orally administered dose that reaches the systemic circulation and is often limited by first-pass metabolism in the gut and the liver. It is important to have knowledge about these processes since the systemic blood drug concentration is tightly connected to the effect of the drug. READ MORE

  7. 5. Biochemical and pharmacokinetic studies in vivo in Parkinson’s disease

    Author : Peter Zsigmond; Nil Dizdar (Dizdar Segrell); Jan Hillman; Stig Rehncrona; Linköpings universitet; []
    Keywords : ;

    Abstract : Parkinson’s disease (PD) is a neurodegenerative disease affecting approximately 25000 people in Sweden. The main cause of the disease is the degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNc) projecting to the striatum. READ MORE