The PCNA expression was markedly decreased and the apoptosis rate significantly increased in rosiglitazone group when compared with the
balloon injury group. Rosiglitazone could exert protective effects on the endothelial cells after balloon injury in which the lipid-lowering, inhibited proliferation and increased GDC-0994 solubility dmso apoptosis of endothelial cells, and compromised NOS activity and secretion of NO and ET-1 played important roles.”
“There are mainly two protocols in isoflavone analysis, one that involves hydrolysis prior to HPLC analysis and the other direct HPLC analysis. In this study, three different hydrolysis methods were systematically re-evaluated, and compared with direct HPLC analysis. Acidic
hydrolysis (1.2-3 M HCl in ethanol at 80 degrees C) showed a maximum conversion of ca. 92% from glucosides to aglycones in 2 h: however, this website longer reaction caused degradation of genistein. Alkaline hydrolysis using 2 M NaOH converted acetylglucosides and malonylglucosides to their respective glucosides within 10 min. Glucuronidase from H. pomatia effectively converted isoflavone glucosides and acetylglucosides to aglycones. Quantification of the total isoflavones in various soy food products showed no significant difference among direct injection and the three hydrolysis methods (P<0.05). We conclude that direct analysis of isoflavones in crude extracts is a rapid and accurate method to obtain isoflavone profiles and compositions in soybean, soy foods and beverages. (C) 2011 Elsevier Ltd. All rights
reserved.”
“An ethanol extract of Terminalia chebula fruit was studied for its antibacterial activity against clinically important standard reference bacterial strains. The antimicrobial susceptibility was screened using the disc diffusion method and the minimum inhibitory concentration (MIC) was determined using the broth microdilution method. The results showed that it was active against both gram-positive and gram-negative bacteria. The T. chebula fruit extract was highly effective against Salmonella typhi SSFP 4S, Staphylococcus epidermidis MTCC 3615, Staphylococcus aureus ATCC 25923, Bacillus subtilis MTCC 441 and Pseudomonas aeruginosa FDA approved Drug Library datasheet ATCC 27853. The MIC was determined as 1 mg/ml for S. typhi. These results indicate that the T. chebula dry fruit possesses a potential broad spectrum of antimicrobial activity and a search for the active compound is needed.”
“Nanocomposites gained more and more importance in the last few years because of their improved performance over the neat polymer matrix, that is, toughness and stiffness can be enhanced simultaneously by the addition of nanoparticles. However, the dispersion of these particles in the matrix remains a big challenge. In this study, two types of TiO2 nanoparticles were dispersed in two different epoxy resins by means of ultrasound.