نتایج جستجو برای: lipophilicity

تعداد نتایج: 5219  

Journal: :Chemical and Pharmaceutical Bulletin 1995

Journal: :Drug metabolism and disposition: the biological fate of chemicals 1997
R A Yokel K A Meurer C B Hong K M Dickey T L Skinner A M Fredenburg

The objectives of the present study were to determine the efficacy and toxicity of repeated oral administration of 3-hydroxypyridin-4-one (HP) chelators in a rabbit model of aluminum (Al) accumulation and toxicity, and the influence of chelator lipophilicity on these effects. Efficacy was assessed as chelator-induced Al mobilization and excretion and reversal of Al accumulation and Al-induced t...

Journal: :Investigative ophthalmology & visual science 2005
Leena Pitkänen Veli-Pekka Ranta Hanna Moilanen Arto Urtti

PURPOSE To determine the effects of solute molecular weight and lipophilicity on the permeability of a retinal pigment epithelium (RPE)-choroid preparation. METHODS Fresh RPE-choroid specimens from bovine eyes were placed in diffusion chambers for permeability experiments with carboxyfluorescein, fluorescein isothiocyanate (FITC)-labeled dextrans with molecular masses from 4 to 80 kDa, and be...

2007
Kristina Lexmüller Helena Gullstrand Bengt-Olof Axelsson Petter Sjölin Solange H Korn David S Silberstein Anna Miller-Larsson

The airway retention of inhaled glucocorticosteroids (GCs) depends largely on their lipophilicity. Inhaled budesonide (BUD) becomes highly lipophilic reversibly by the formation of esters, acting as a reservoir of active BUD. Ciclesonide (CIC) was also reported to form esters after hydrolysis to active metabolite (CIC-AM). We have investigated lipophilicity and airway retention of BUD, CIC/CIC-...

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