W(R) achieves 90% of the theoretically maximum relative bandwidth. The composites with the spinel ferrite flaky fillers
are powerful and potential candidates as electromagnetic attenuation materials with ultrabroad bandwidth at microwave L, S, and C bands. (C) 2010 American Institute of Physics. [doi:10.1063/1.3485809]“
“Background: Duvelisib mw Renal ischemia followed by reperfusion leads to acute renal failure in both native kidneys and renal allograft. This study aimed at investigating the effects of mesenchymal stem cells (MSC) on ischemia/reperfusion (I/R) injury and the underlying mechanisms in a rat model. Methods: Renal ischemia was produced by clamping the right renal vessels for 60 min after the left kidney was removed. Immediately after
visual confirmation of reflow, 1 x 10(6) MSC were administered by intravenous injection, followed by reperfusion for 24 h. The kidney functions, tissue malondialdehyde (MDA), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) levels were evaluated. Histopathological examinations were also performed. Results: MSC infusion significantly improved kidney function as indicated by lower urea and creatinine levels in the MSC compared to the vehicle group (p < 0.05). Akt inhibitor I/R-induced reduction in renal tissue SOD enzyme activity and GSH-Px was significantly improved by MSC (p < 0.05). Treatment with MSC also resulted in significant reduction in renal tissue MDA levels that were increased by
renal I/R injury (p < 0.05). At histological examination, the kidneys of MSC-treated rats showed a fairly normal morphology. Conclusions: MSC protects the kidneys against I/R injury at least via their antioxidant effects. Copyright 2010 S. Karger AG, Basel”
“Lead is a persistent and common environmental contaminant, which chiefly plays a significant role in modern industry. Coenzyme Q acts as electron and proton carrier in mitochondria and functions as https://www.selleckchem.com/products/poziotinib-hm781-36b.html an antioxidant in its reduced form (ubiquinol). To investigate the hazardous effects of lead on the coenzyme Q level, rats were injected i.p. with lead acetate (5 mg/kg b.wt. daily for 6 weeks). Our results showed that the levels of both oxidized (ubiquinone) and reduced (ubiquinol) forms of coenzyme Q(9) and Q(10) in serum, brain, liver and kidney of lead-treated rats are quite different depending on the organ tissue type.”
“Staggered quantum well structures are studied to eliminate the influence of polarization-induced electrostatic field upon the optical performance of blue InGaN light-emitting diodes (LEDs). Blue InGaN LEDs with various staggered quantum wells which vary in their indium compositions and quantum well width are theoretically studied and compared by using the APSYS simulation program.