We discuss potential applications of Monte Carlo diffusion-tensor simulations for quantitative biophysical interpretation p53 inhibitor of magnetic resonance diffusion-tensor images of cartilage. Extension of the model to include collagen fibre disorder is also discussed.”
“Acetaminophen is one of the most popular analgesic and antipyretic drugs and its overdose, which can cause severe damage to liver and kidneys, is one of the most common reasons of emergency
admissions. In this study we investigated the effects of curcumin, derived from plant Curcuma longa, on acetaminophen toxicity, and the possibility of combining therapy of curcumin and N-acetyl cysteine (NAC) to treat this toxicity. The experiments were conducted on 72 male Sprague-Dawley rats randomly divided into 12 groups. Control group was left without treatment, and the other groups were treated with different combinations of acetaminophen, curcumin and NAC. 15 min after intraperitoneal injection, the blood level of curcumin was measured using HPLC. Blood levels of AST (aspartate aminotransferase), ALT (alanine aminotransferase), blood urea nitrogen and creatinine were determined 18 and 42 h after acetaminophen injection. One week later, the left kidney and the caudate lobe of the liver were harvested to assay glutathione peroxidase, catalase and malondialdehyde. The right kidney and the remaining
lobes of the liver were used for histopathology. Analysis of organ selleck products function and oxidation parameters showed that curcumin significantly reduced toxic effects of acetaminophen on the liver and kidneys in a dose-dependent manner and significantly potentiated the protective effects of NAC. These findings were confirmed by histopathology. It is concluded that curcumin can protect the liver and kidney from the damage caused by acetaminophen overdose. Moreover, curcumin has the potential to be used in a combination therapy with NAC, significantly decreasing the therapeutic dose of NAC and therefore its side-effects. (C) 2009 Elsevier B.V. All rights reserved.”
“Background. Midterm results after transapical aortic
valve implantation are still unknown in a large group of patients. We report our institutional experience in 300 high-risk patients.\n\nMethods. Since April 2008, transapical aortic valve implantation was performed in 300 patients (mean age, 80 +/- 8 years). The mean www.selleckchem.com/MEK.html logistic EuroSCORE (European System for Cardiac Operative Risk Evaluation) was 39% +/- 19% and the mean Society of Thoracic Surgeons (STS) score was 19% +/- 16%. Eighteen patients were in cardiogenic shock preoperatively. Follow-up was up to 31 months with a total of 3,500 months of follow-up.\n\nResults. Technical success of the procedure was 99.7% (299 of 300 patients). The 30-day mortality rate in all patients without cardiogenic shock was 3.9%. The overall 30-day mortality for the whole group of 300 patients was 4.7%. The mortality of the last 100 patients dropped to 2.0%.