The receiver-operating characteristic curves were drawn for the MELD scoring system and the new regression model and the areas under the curves (AUC) were compared by the z-test. The 3-month mortality rate was 57.8%. The mean MELD score for the patients who died was significantly greater than those who survived beyond 3 months
(28.7 vs 22.4, P = 0.003). The concordance (c) statistic (equivalent to the AUC) for the MELD scoring system predicting 3-month mortality was 0.709 (SE = 0.036, P < 0.001, 95% confidence interval 0.638-0.780). The independent factors predicting prognosis were hepatorenal syndrome (P < 0.001), liver cirrhosis (P = 0.009), HBeAg (P = 0.013), albumin (P = 0.028) and prothrombin activity (P = 0.011) as identified in multivariate logistic DAPT regression analysis. The regression model that was constructed by the logistic regression analysis produced a greater prognostic value (c = 0.891) than the MELD scoring system (z = 4.333, P < 0.001). The MELD scoring system is a promising and useful predictor for 3-month mortality of ACLF-HBV patients. Hepatorenal syndrome, liver cirrhosis, HBeAg,
albumin and prothrombin activity are independent factors affecting the 3-month mortality. The newly JQ1 established logistic regression model appears to be superior to the MELD scoring system in predicting 3-month mortality in patients with ACLF-HBV.”
“Molecular dynamics is employed to investigate the collective motion of carbon atoms of a (10,10) single walled carbon nanotube under tensile loading. The “”slip vector”" parameter is used to study the collective motion of a group of atoms and deformation behavior in three different directions (axial, tangential, and radial directions). According to the variations in the slip vectors in different directions and the stress-strain profile, the axial tensile
process can be divided into three stages. In tensile loading process, two local deformation types (symmetrical and nonsymmetrical deformations) are observed before reaching the maximum stress. The variations in the Elafibranor mouse slip vector values of each atom indicate a symmetrical rupture which is oriented 45 degrees to the axis of the nanotube after reaching the maximum stress. By tensile loading, chainlike structures can be formed before the breaking of the nanotube. (C) 2009 American Institute of Physics. [doi:10.1063/1.3181056]“
“Background: Chronic obstructive pulmonary disease (COPD) is prevalent in heart failure (HF) patients, yet these patients are poorly characterized. We aimed to describe the characteristics and outcomes of patients with systolic dysfunction and COPD in a contemporary HF randomized trial. Methods and
Results: EVEREST investigated 4,133 patients hospitalized with worsening HF and an ejection fraction (EF) <= 40%.