The pathogenesis of leukoaraiosis is selleck chemical poorly understood, even if chronic ischemia with consequent arteriolosclerosis probably due to endothelial dysfunction has been suggested. To date, treatment focuses only on prevention of lesion formation and progression by aggressive control of risk factors, beginning at an early age and continuing throughout life.\n\nL-Arginine, a semi-essential amino acid, is a precursor of NO in the reaction catalyzed by endothelial nitric oxide synthase and, it has been recently found to importantly influence endothelial function. Arginine supplementation has been demonstrated to be safe and effective therapy for many health conditions, particularly vascular diseases such as intermittent
claudication, angina pectoris, erectile dysfunction and MELAS.\n\nThus we hypothesize that, since a lack of endothelium-derived NO may be responsible for several features of LA, long-term administration of high oral doses of L-Arg may slow LA progression and the associated functional impairment. (C) 2011 Elsevier Ltd. All rights reserved.”
“Solid oxide fuel cells (SOFC) are
Aurora Kinase inhibitor the cleanest, most efficient, and cost-effective option for direct conversion to electricity of a wide variety of fuels. While significant progress has been made in anode materials with enhanced tolerance to coking and contaminant poisoning, cathodic polarization still contributes considerably to energy loss, more so at lower operating temperatures. Here we report a synergistic effect of co-doping in a cation-ordered double-perovskite material, PrBa0.5Sr0.5Co2-xFexO5+delta, which has created pore channels that dramatically enhance find more oxygen ion diffusion and surface oxygen exchange while maintaining excellent compatibility and stability under operating conditions. Test cells based on these cathode materials demonstrate peak power densities similar to 2.2 W cm(-2) at 600
degrees C, representing an important step toward commercially viable SOFC technologies.”
“Interactions of the ESCRT complexes are critical for endosomal trafficking. We identify two domains with potential significance for this process. The MABP domain present in metazoan ESCRT-I/MVB12 subunits, Crag, a regulator of protein sorting, and bacterial pore-forming proteins might mediate novel membrane interactions in trafficking. The UBAP1-MVB12-associated UMA domain found in MVB12 and UBAP1 defines a novel adaptor that might recruit diverse targets to ESCRT-I.”
“Obesity-associated severe asthma is a distinct phenotype characterised by resistance to standard asthma therapies. Bariatric surgery appears to be a viable alternative for those who have failed trials of traditional weight loss methods. However, anaesthetic and surgical risks are potential barriers. We describe three patients with treatment-resistant obesity-associated severe asthma who underwent bariatric surgery without complications due to the multidisciplinary perioperative planning and care involved in these complex cases.