Ophthalmic application of poly(HEMA)s containing nanoparticles and dimethylacrylamide.

High functional ophthalmic lens materials, poly(HEMA-co-MMA)s were prepared by the copolymerization of HEMA, MMA, MA, EDGMA, and N,N-dimethylacrylamide in the presence of platinum nanoparticles with antimicrobial properties. The hydrophilic monomer N,N-dimethylacrylamide has excellent biocompatibility and oxygen transmissibility. The combination where platinum nanoparticles were added produced a colorless transparent lens.

Effects of Minor Ginsenosides, Ginsenoside Metabolites, and Ginsenoside Epimers on the Growth of Caenorhabditis elegans.

In the previous report, we have demonstrated that ginsenoside Rc, one of major ginsenosides, is a major component for the restoration for normal growth of worms in cholesterol-deprived medium. In the present study, we further investigated the roles of minor ginsenosides, such as ginsenoside Rh1 and Rh2, ginsenoside metabolites such as compound K (CK), protopanaxadiol (PPD), and protopanaxatriol (PPT) and ginsenoside epimers such as 20(R)- and 20(S)-ginsenoside Rg3 in cholesterol-deprived medium. We found that ginsenoside Rh1 almost restored normal growth of worms in cholesterol-deprived medium in F1 generation.

Effects of ginsenosides, active ingredients of Panax ginseng, on development, growth, and life span of Caenorhabditis elegans.

The backbone structure of ginsenosides, active ingredients of Panax ginseng, is similar with that of sterol, especially cholesterol. Caenorhabditis elegans (C. elegans) is one of free living nematodes and is well-established animal model for biochemical and genetic studies.

Decision-tree model of treatment-seeking behaviors after detecting symptoms by Korean stroke patients.

Purpose: This study was performed to develop and test a decision-tree model of treatment-seeking behaviors about when Korean patients visit a doctor after experiencing stroke symptoms.

Methods: The study used methodological triangulation. The model was developed based on qualitative data collected from in-depth interviews with 18 stroke patients.