Also this microemulsion
showed the best performance in the antifungal activity test compared with the one containing propylene glycol. These results are according to previous reports of the advantages of microemulsions BIX 01294 in vitro for topical administration and they are very promising for further clinical evaluation.”
“Strategies to decrease intracellular polyamine levels have been studied for their efficacy in reducing colorectal cancer (CRC) risk. A successful strategy combined agents that decreased polyamine synthesis by inhibiting ornithine decarboxylase with difluoromethylornithine (DFMO), and increased cellular export of polyamines by activating the spermidine/spermine acetyl transferase with non-steroidal anti-inflammatory drugs (NSAIDs). A Phase III trial treating resected adenoma patients with DFMO plus sulindac demonstrated marked reduction of metachronous adenomas, advanced adenomas and multiple adenomas compared to placebo. This 4EGI-1 combination regimen was well-tolerated, however there was a non-significant excess of cardiovascular events in the treatment arm compared to placebo as well as modest ototoxicity. Targeting this therapy to people at elevated risk of CRC, and employing clinical and genetic predictors, should improve patient
benefit and reduce the risk of side effects to improve the acceptability of this strategy. (C) 2011 Elsevier Ltd. All rights reserved.”
“This paper presents a theoretical study of the effect of transverse electric potentials on the transport properties of armchair graphene nanoribbons (AGNRs), 5-Fluoracil formed by pairs of asymmetric gates placed along the side of
the ribbon. Single-pair and dual-pair configurations are considered. The effect of hollows (spatial regions void of carbon atoms) in the AGNR channels is also examined. The use of hollowed AGNRs in the dual-pair configuration allows for significant modulation of the transport gap when the two pairs have opposite gate bias polarity. Furthermore, for the dual-gate system, hollowed AGNR channels exhibit the optimal ratio of on-state to off-state conductance, due to the smaller off-state conductance compared with spatially homogenous AGNR channels. Our results indicate that transverse gate technology coupled with careful engineering of hollow geometry may lead to possible applications in graphene-based electronic devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3562155]“
“The water-insoluble procedures in US Pharmacopeia (USP) General Chapter Residual Solvents < 467 >, which are based on European Pharmacopoeia procedures, were optimized and modified before their inclusion in the chapter to improve their scope, performance, and ruggedness. The optimized procedures use a static headspace introduction system with a gas chromatograph equipped with a flame ionization detector.