We investigated the
hemostatic efficacy of Ankaferd BloodStopper for partial nephrectomy.
Materials and Methods: A total of 24 Wistar rats were divided into 4 groups of 6 each. Group I underwent partial nephrectomy with hilar control as the conventional technique. selleck chemicals Group 2 underwent the conventional technique with hemostatic agent application. Group 3 underwent hemostatic agent application to the renal parenchyma. In Group 4 partial nephrectomy was performed and the hemostatic agent was used without hilar control. Warm ischemia and partial nephrectomy times, and the number of hemostatic agent applications were recorded. Histopathological evaluations were completed. The Fisher, Kruskal-Wallis and Mann-Whitney U tests were used for statistical analysis.
Results: Mean kidney size was 2 x 2.5 x 0.05 cm. Mean partial nephrectomy time was 3.7, 2.7, 1.8 and 3.2 minutes in groups 1 to 4, respectively, which was significantly different between groups 1 and 3 (p = 0.007). Warm ischemia time in group 3 was less than in group 1 (p
= 0.011). The number of hemostatic agent applications was higher in groups 3 and 4 compared to those in group 2 (p = 0.003). Glomerular necrosis IPI-549 was detected at a higher rate in group 1 compared to that in groups 3 and 4 (p = 0.015). Calcification formed significantly more in group 1 than in groups 2 to 4 (p <0.05). Erythrocyte aggregation was greater in groups 2 to 4 than in group 1 (p = 0.015). Farnesyltransferase Giant cell reaction, fibrosis, inflammation and microvascular proliferation were
not statistically different among the groups (p >0.05).
Conclusions: Ankaferd BloodStopper decreases partial nephrectomy and warm ischemia times, and provides hemostasis. Erythrocyte aggregation confirmed the hemostatic action of the agent, while the absence of glomerular necrosis and calcification may have positive relevance.”
“We present an automatic method for selecting regions of interest (ROIs) of the information contained in three-dimensional functional brain images using Gaussian mixture models (GMMs), where each Gaussian incorporates a contiguous brain region with similar activation. The novelty of the approach is based on approximating the grey-level distribution of a brain image by a sum of Gaussian functions, whose parameters are determined by a maximum likelihood criterion via the expectation maximization (EM) algorithm. Each Gaussian or cluster is represented by a multivariate Gaussian function with a center coordinate and a certain shape. This approach leads to a drastic compression of the information contained in the brain image and serves as a starting point for a variety of possible feature extraction methods for the diagnosis of brain diseases. (C) 2009 Elsevier Ireland Ltd. All rights reserved.”
“Purpose: We investigated the functional role of K(+) channels for regulating spontaneous activity in mouse bladder detrusor smooth muscle.