Search for dissertations about: "Zeina M. F. Ali"

Found 2 swedish dissertations containing the words Zeina M. F. Ali.

  1. 1. Side-chain oxidized oxysterols as metabolic regulators in liver and brain

    Author : Zeina M F Ali; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Oxysterols are oxygenated derivatives of cholesterol characterized by a very short half-life and their ability to pass lipophilic membranes easily, thus they are considered as important intermediates in cholesterol excretion pathways and its conversion to bile acids. The two major oxysterols in the circulation of human and mouse are 24S-hydroxycholesterol (24S-OH) and 27-hydroxycholesterol (27-OH), which are formed by the cytochrome P450 enzymes cholesterol 24-hydroxylase (CYP46A1) and sterol 27-hydroxylase (CYP27A1), respectively. READ MORE

  2. 2. Side-chain oxidized oxysterols as metabolic regulators in vivo

    Author : Zeina M F Ali; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Oxysterols are oxygenated derivatives of cholesterol characterized by a very short half- life and their ability to pass lipophilic membranes easily, and they are considered as important intermediates in the excretion pathways of cholesterol and its conversion to bile acids. Evidence has been presented that the production and flux of oxysterols in the brain may also be of some importance for cognitive functions. READ MORE