Biologic Agents in Plastic Surgery

alexandrossfakianakis shared this article with you from Inoreader Biologic Agents in Plastic Surgery via Seminars in Plastic Surgery Semin Plast Surg 2022; 36: 002-002 DOI: 10.1055/s-0042-1743454 Thieme Medical Publishers, Inc. 333 Seventh Avenue, 18th Floor, New York, NY 10001, USA Article in Thieme eJournals: Table of contents  |  Full text View on Web

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Efficacy of dexmedetomidine on postoperative pain in patients undergoing gastric and esophageal endoscopic submucosal dissection: a study protocol for a randomized controlled prospective trial

alexandrossfakianakis shared this article with you from Inoreader Efficacy of dexmedetomidine on postoperative pain in patients undergoing gastric and esophageal endoscopic submucosal dissection: a study protocol for a randomized controlled prospective trial via Trials - Latest Articles Endoscopic submucosal dissection (ESD) is widely used as an effective treatment of early gastric and esophageal tumors, as it is minimally invasive, safe, and convenient. Epigastric pain is a common complicati... View on Web

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Dynamic Liver Magnetic Resonance Imaging During Free Breathing: A Feasibility Study With a Motion Compensated Variable Density Radial Acquisition and a Viewsharing High-Pass Filtering Reconstruction

alexandrossfakianakis shared this article with you from Inoreader Dynamic Liver Magnetic Resonance Imaging During Free Breathing: A Feasibility Study With a Motion Compensated Variable Density Radial Acquisition and a Viewsharing High-Pass Filtering Reconstruction via Investigative Radiology - Current Issue Objective Robust dynamic contrast-enhanced T1-weighted images are crucial for accurate detection and categorization of focal liver lesions in liver/abdominal magnetic resonance imaging (MRI). As optimal dynamic imaging usually requires multiple breath-holds, its inherent susceptibility to motion artifacts frequently results in degraded image quality in incompliant patients. Because free-breathing imaging may overcome this drawback, the intention of this study was to evaluate a dynamic MRI sequence acquired during free breathing using the variable density, elliptical centric golden angle radial stack-of-stars radial sampling scheme, which so far has not been implemented in 4-dimensional applications. Materials and Methods In a prospective pilot study, 27 patients received a routine abdominal MRI protocol including the prototype free-breathing sequence (4DFreeBreathing) for dynamic imaging. This enables more convenient and faster reconstruction through variable density, elliptical centric golden angle radial stack-of-stars without the use of additional reconstruction hardware, and even higher motion robustness through soft-gating. A standard breath-hold sequence performed subsequently served as reference standard. Of the continuous dynamic data sets, each dynamic phase was analyzed regarding image quality, motion artifacts and vessel conspicuity using 5-point Likert scales. Furthermore, correct timing of the late arterial phase was compared with the preexaminations. Results 4DFreeBreathing delivered motion-free dynamic images with high temporal resolution in each subject. Overall image quality scores were rated good or excellent for 4DFreeBreathing and the gold standard without significant differences (P = 0.34). There were significantly less motion artifacts in the 4DFreeBreathing sequence (P 0.99, P = 0.22, respectively). Correct timing of the late arterial phase could be achieved in 27 of 27 (100%) examinations using 4DFreeBreathing versus 35 of 53 (66%) preexaminations using gold standard (P View on Web

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Benchmarking Feature Selection Methods in Radiomics

alexandrossfakianakis shared this article with you from Inoreader Benchmarking Feature Selection Methods in Radiomics via Investigative Radiology - Current Issue Objectives A critical problem in radiomic studies is the high dimensionality of the datasets, which stems from small sample sizes and many generic features extracted from the volume of interest. Therefore, feature selection methods are used, which aim to remove redundant as well as irrelevant features. Because there are many feature selection algorithms, it is key to understand their performance in the context of radiomics. Materials and Methods A total of 29 feature selection algorithms and 10 classifiers were evaluated on 10 publicly available radiomic datasets. Feature selection methods were compared for training times, for the stability of the selected features, and for ranking, which measures the pairwise similarity of the methods. In addition, the predictive performance of the algorithms was measured by utilizing the area under the receiver operating characteristic curve of the best-performing classifier. Results Feature selections differed largely in training times as well as stability and similarity. No single method was able to outperform another one consistently in predictive performance. Conclusion Our results indicated that simpler methods are more stable than complex ones and do not perform worse in terms of area under the receiver operating characteristic curve. Analysis of variance, least absolute shrinkage and selection operator, and minimum redundancy, maximum relevance ensemble appear to be good choices for radiomic studies in terms of predictive performance, as they outperformed most other feature selection methods. View on Web

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Homoarginine Treatment of Rats Improves Cardiac Function and Remodeling in Response to Pressure Overload

alexandrossfakianakis shared this article with you from Inoreader Homoarginine Treatment of Rats Improves Cardiac Function and Remodeling in Response to Pressure Overload via Fundamental & Clinical Pharmacology Abstract Background Low serum concentrations of the amino acid homoarginine (HA) are associated with increased cardiovascular mortality by incompletely understood mechanisms. Objectives This study sought to assess the influence of HA on cardiac remodeling in rats undergoing either transaortic banding or inhibition of nitric oxide synthesis by Nω-Nitro-L-arginine methyl ester hydrochloride (L-NAME). Methods Male Wistar rats (n=136) underwent a sham operation (SH) or aortic banding (AB). Both groups were equally divided into fourteen subgroups, receiving different doses of HA alone or in combination with lisinopril, spironolactone, or L-NAME over 4 weeks. Results HA treatment in AB animals resulted in a dose-dependent improvement of cardiac function up to a concentration of 800 mg·kg-1·day-1. Combining 800 mg·kg-1·day-1 HA with spironolactone or lisinopril yielded additional effects, showing a positive correlation with LV ejection fraction (+33%, p=0.0002) and fractional shortening (+41%, p=0.0014). An inverse association was observed with collagen area fraction (-41%, p<0.0001), myocyte cross-sectional area (-22%, p<0.0001) and the molecular markers atrial natriuretic factor (-74%, p=0.0091), brain natriuretic peptide (-42%, p=0.0298), beta-myosin heavy chain (-46%, p=0.0411), and collagen type V alpha 1 chain (-73%, p=0.0257) compared to placebo-treated AB animals. Co-administration of HA and L-NAME was found to attenuate cardiac remodeling and prevent NO-deficient hypertension following AB. Conclusion HA treatment has led to a dose-dependent improvement of myocardial function and marked histological and molecular changes in cardiac remodeling following AB. Combining HA with standard heart failure medication resulted in additional beneficial effects boosting its direct impact on heart failure pathophysiology. View on Web

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Nuclear-targeted 4E-BP1 is dephosphorylated, induces nuclear translocation of eIF4E, and alters mRNA translation

alexandrossfakianakis shared this article with you from Inoreader Nuclear-targeted 4E-BP1 is dephosphorylated, induces nuclear translocation of eIF4E, and alters mRNA translation via ScienceDirect Publication: Experimental Cell Research Publication date: Available online 10 June 2022 Source: Experimental Cell Research Author(s): Sho Takahashi, Shusaku Shibutani, Hiroyuki Iwata View on Web

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Rifapentine and isoniazid for prevention of tuberculosis in people with diabetes (PROTID): protocol for a randomised controlled trial

alexandrossfakianakis shared this article with you from Inoreader Rifapentine and isoniazid for prevention of tuberculosis in people with diabetes (PROTID): protocol for a randomised controlled trial via Trials - Latest Articles Diabetes mellitus (DM) increases the risk of tuberculosis (TB) and will hamper global TB control due to the dramatic rise in type 2 DM in TB-endemic settings. In this trial, we will examine the efficacy and sa... View on Web

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