Publications by authors named "Kwan Yeol Yang"

Background And Objectives: Obesity and diet contribute to the development of hypercholesterolemia; therefore, controlling blood lipid concentration through diet is essential. To understand the role of diet in controlling blood lipid concentration, we evaluated the food and nutrient intakes, anthropometry, and blood lipid concentrations of adults with dyslipidemia with or without lipid-lowering drug use.

Methods And Study Design: For this crosssectional study, three-year data were obtained from the 6th-7th Korean National Health and Nutrition Examination Survey (2015-2017).

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Porous palladium (Pd) nanoparticles have garnered great research attention due to their potential anticancer activity and photothermal effect. In this study, a transferrin-conjugated pH-sensitive platform (Tf-PPP), comprising porous Pd nanoparticles (PdNPs) and paclitaxel (PTX), was successfully developed for combined chemo-phototherapy. Tf-PPPs have a small size of 164.

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Background: The purpose of this study was to develop a novel silymarin-loaded solid nanoparticle system with enhanced oral bioavailability and an ability to provide excellent hepatic protection for poorly water-soluble drugs using Shirasu porous glass (SPG) membrane emulsification and a spray-drying technique.

Methods: A silymarin-loaded liquid nanoemulsion was formulated by applying the SPG membrane emulsification technique. This was further converted into solid state nanosized particles by the spray-drying technique.

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A solid form of self-microemulsifying drug delivery system (Solid SMEDDS) was developed by spray-drying with dextran as the inert solid carrier, to improve the oral bioavailability of a poorly water-soluble drug, fenofibrate. The optimized liquid SMEDDS, composed of Labrafil M 1944 CS/Labrasol/Capryol PGMC (15/75/10%v/v) with 10% w/v fenofibrate gave a z-average diameter of around 240 nm. There was no significant difference in the mean droplet size and size distribution of the emulsions obtained from the liquid and solid forms of SMEDDS.

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The objective of the present study was to enhance solubility and bioavailability of itraconazole by a combined use of membrane emulsification and spray drying solidification technique. A shirasu-porous-glass (SPG) membrane with a mean pore size of 2.5 μm was used to produce monodispersed microemulsions of itraconazole consisting of methylene chloride as the dispersed phase, a mixture of Transcutol HP and Span 20 as a stabilizer, and dextran as solid carrier dissolved in water as the continuous phase.

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To develop a valsartan-loaded gelatin microcapsule using hydroxypropylmethylcellulose (HPMC) as a stabilizer, which could improve the physical stability and bioavailability of valsartan, the gelatin microcapsules were prepared with various ratios of gelatin and HPMC using a spray-drying technique. Their solubility, dissolution, thermal characteristics, crystallinity, and physical stability were investigated. The bioavailability of drug in valsartan-loaded microcapsule was then evaluated compared to drug powder and commercial product in rats.

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