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https://www.readbyqxmd.com/read/28918602/population-pharmacokinetics-and-optimal-sampling-strategy-for-model-based-precision-dosing-of-melphalan-in-patients-undergoing-hematopoietic-stem-cell-transplantation
#1
Kana Mizuno, Min Dong, Tsuyoshi Fukuda, Sharat Chandra, Parinda A Mehta, Scott McConnell, Elias J Anaissie, Alexander A Vinks
BACKGROUND: High-dose melphalan is an important component of conditioning regimens for patients undergoing hematopoietic stem cell transplantation. The current dosing strategy based on body surface area results in a high incidence of oral mucositis and gastrointestinal and liver toxicity. Pharmacokinetically guided dosing will individualize exposure and help minimize overexposure-related toxicity. OBJECTIVE: The purpose of this study was to develop a population pharmacokinetic model and optimal sampling strategy...
September 16, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28918422/the-modern-art-of-reading-computed-tomography-images-of-the-lungs-quantitative-ct
#2
Felix J F Herth, Miranda Kirby, Jered Sieren, Jonas Herth, Joshua Schirm, Susan Wood, Maren Schuhmann
Lung diseases are increasing in prevalence and overall burden worldwide. To stem the tide, more and more national and international guidelines are recommending the use of various diagnostic algorithms that are disease specific. There is growing consensus among the respiratory community that although patient histories and lung function testing are the minimum required for clinical examinations, these tests alone are not sufficient for disease characterization. Therefore, the use of computed tomography (CT) imaging is increasing used in clinical decision making for lung diseases...
September 16, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28918182/uk-temporomandibular-joint-replacement-database-a-report-on-one-year-outcomes
#3
R Elledge, A Attard, J Green, D Lowe, S N Rogers, A J Sidebottom, B Speculand
Alloplastic temporomandibular joint (TMJ) replacements are increasingly subspecialised, and supraregional centres that treat sufficient numbers to ensure high standards are emerging. Having recently reported the introduction of a national TMJ joint replacement database that is endorsed by the British Association of TMJ Surgeons (BATS), we now present the first-year outcomes. This was a review of all data in the BATS National Case Registration of TMJ Replacement as of June 2014. A total of 252 one-year outcome records were available...
September 13, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28918078/assessment-of-environmental-impacts-and-operational-costs-of-the-implementation-of-an-innovative-source-separated-urine-treatment
#4
Elorri Igos, Mathilde Besson, Tomás Navarrete Gutiérrez, Ana Barbara Bisinella de Faria, Enrico Benetto, Ligia Barna, Aras Ahmadi, Mathieu Spérandio
Innovative treatment technologies and management methods are necessary to valorise the constituents of wastewater, in particular nutrients from urine (highly concentrated and can have significant impacts related to artificial fertilizer production). The FP7 project, ValuefromUrine, proposed a new two-step process (called VFU) based on struvite precipitation and microbial electrolysis cell (MEC) to recover ammonia, which is further transformed into ammonium sulphate. The environmental and economic impacts of its prospective implementation in the Netherlands were evaluated based on life cycle assessment (LCA) methodology and operational costs...
September 8, 2017: Water Research
https://www.readbyqxmd.com/read/28917753/nuclear-forensics-investigation-of-morphological-signatures-in-the-thermal-decomposition-of-uranyl-peroxide
#5
Ian J Schwerdt, Adam Olsen, Robert Lusk, Sean Heffernan, Michael Klosterman, Bryce Collins, Sean Martinson, Trenton Kirkham, Luther W McDonald
The analytical techniques typically utilized in a nuclear forensic investigation often provide limited information regarding the process history and production conditions of interdicted nuclear material. In this study, scanning electron microscopy (SEM) analysis of the surface morphology of amorphous-UO3 samples calcined at 250, 300, 350, 400, and 450°C from uranyl peroxide was performed to determine if the morphology was indicative of the synthesis route and thermal history for the samples. Thermogravimetic analysis-mass spectrometry (TGA-MS) and differential scanning calorimetry (DSC) were used to correlate transitions in the calcined material to morphological transformations...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917660/stereotaxic-18-f-fdg-pet-and-mri-templates-with-three-dimensional-digital-atlas-for-statistical-parametric-mapping-analysis-of-tree-shrew-brain
#6
Qi Huang, Binbin Nie, Chen Ma, Jing Wang, Tianhao Zhang, Shaofeng Duan, Shang Wu, Shengxiang Liang, Panlong Li, Hua Liu, Hua Sun, Jiangning Zhou, Lin Xu, Baoci Shan
BACKGROUND: Tree shrews are proposed as an alternative animal model to nonhuman primates due to their close affinity to primates. Neuroimaging techniques are widely used to study brain functions and structures of humans and animals. However, tree shrews are rarely applied in neuroimaging field partly due to the lack of available species specific analysis methods. NEW METHOD: In this study, 10 PET/CT and 10 MRI images of tree shrew brain were used to construct PET and MRI templates; based on histological atlas we reconstructed a three-dimensional digital atlas with 628 structures delineated; then the digital atlas and templates were aligned into a stereotaxic space...
September 13, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28917500/economic-evaluation-of-childhood-epilepsy-in-a-resource-challenged-setting-a-preliminary-survey
#7
Aliyu Ibrahim, Umar Isa Umar, Umar Musa Usman, Lukman Femi Owolabi
BACKGROUND: Considerable disease variability exists between patients with epilepsy, and the societal costs for epilepsy care are overall high, because of high frequency in the general population especially in children from developing countries. MATERIALS AND METHODS: A cross-sectional study where children with established diagnosis of epilepsy were interviewed using a semi-structured questionnaire. Prevalence-based costs were stratified by patients' sociodemographic characteristics and socioeconomic scores (SES)...
September 13, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28917377/the-effect-of-a-beeswax-olive-oil-and-alkanna-tinctoria-l-tausch-mixture-on-burn-injuries-an-experimental-study-with-a-control-group
#8
Kenan Gümüş, Zeynep Karaman Özlü
OBJECTIVES: This study was planned to investigate the effect of a mixture of beeswax, olive oil and A. Tinctoria (L.) Tausch on burn wounds to determine the impact on burn healing, pain during dressing changes and duration of hospital stay. METHODS: The study was conducted between May 2014 and August 2015 in the Burn Unit of Ataturk University Research Hospital. The sample of this experimental study consisted of 64 patients (31 experimental group and 33 control group) who met its inclusion criteria...
October 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28917287/intraoperative-computed-tomography-in-cranial-neurosurgery
#9
REVIEW
Christian Schichor, Nicole Terpolilli, Jun Thorsteinsdottir, Jörg-Christian Tonn
The challenge for treating complex lesions with the aim of minimal surgery-related morbidity has generated an increasing demand for sophisticated intraoperative imaging modalities. Newest generations of intraoperative computed tomography (CT) scanners offer a multitude of hardware and software improvements resulting in higher image quality that further propagates its everyday usage in the interdisciplinary operative setting. This article describes workflow and applicability of intraoperative CT scanning in cranial neurosurgery, in subspecialties like skull base or vascular neurosurgery, and its advantages and limitations...
October 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/28917015/metronome-lkm-an-open-source-virtual-keyboard-driver-to-measure-experiment-software-latencies
#10
Pablo Garaizar, Miguel A Vadillo
Experiment software is often used to measure reaction times gathered with keyboards or other input devices. In previous studies, the accuracy and precision of time stamps has been assessed through several means: (a) generating accurate square wave signals from an external device connected to the parallel port of the computer running the experiment software, (b) triggering the typematic repeat feature of some keyboards to get an evenly separated series of keypress events, or (c) using a solenoid handled by a microcontroller to press the input device (keyboard, mouse button, touch screen) that will be used in the experimental setup...
September 15, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28916961/practical-computational-toolkits-for-dendrimers-and-dendrons-structure-design
#11
Nuno Martinho, Liana C Silva, Helena F Florindo, Steve Brocchini, Teresa Barata, Mire Zloh
Dendrimers and dendrons offer an excellent platform for developing novel drug delivery systems and medicines. The rational design and further development of these repetitively branched systems are restricted by difficulties in scalable synthesis and structural determination, which can be overcome by judicious use of molecular modelling and molecular simulations. A major difficulty to utilise in silico studies to design dendrimers lies in the laborious generation of their structures. Current modelling tools utilise automated assembly of simpler dendrimers or the inefficient manual assembly of monomer precursors to generate more complicated dendrimer structures...
September 15, 2017: Journal of Computer-aided Molecular Design
https://www.readbyqxmd.com/read/28916934/cohort-research-in-omics-and-preventive-medicine
#12
Yi Shen, Sheng Zhang, Jie Zhou, Jiajia Chen
Cohort studies are observational studies in which the investigator determines the exposure status of subjects and then follows them for subsequent outcomes. The incidence of outcomes is observed in the exposed group and compared with that in a nonexposed group. Recently, new epidemiologic strategies have encouraged cohort research information exchange and cooperation to improve the cognition of disease etiology, such as case-cohort design and nested case-control study, which is available for "omics" data. Meanwhile, large-scale cohort studies using a prospective multiple design and long follow-ups have explored some of the challenges in preventive medicine...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28916883/different-post-processing-conditions-for-3d-bioprinted-%C3%AE-tricalcium-phosphate-scaffolds
#13
Liciane Sabadin Bertol, Rodrigo Schabbach, Luis Alberto Loureiro Dos Santos
The development of 3D printing hardware, software and materials has enabled the production of bone substitute scaffolds for tissue engineering. Calcium phosphates cements, such as those based on α-tricalcium phosphate (α-TCP), have recognized properties of osteoinductivity, osteoconductivity and resorbability and can be used to 3D print scaffolds to support and induce tissue formation and be replaced by natural bone. At present, however, the mechanical properties found for 3D printed bone scaffolds are only satisfactory for non-load bearing applications...
September 15, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28916879/a-score-combining-baseline-neutrophilia-and-primary-tumor-suvpeak-measured-from-fdg-pet-is-associated-with-outcome-in-locally-advanced-cervical-cancer
#14
Antoine Schernberg, Sylvain Reuze, Fanny Orlhac, Irène Buvat, Laurent Dercle, Roger Sun, Elaine Limkin, Alexandre Escande, Christine Haie-Meder, Eric Deutsch, Cyrus Chargari, Charlotte Robert
PURPOSE: We investigated whether a score combining baseline neutrophilia and a PET biomarker could predict outcome in patients with locally advanced cervical cancer (LACC). METHODS: Patients homogeneously treated with definitive chemoradiation plus image-guided adaptive brachytherapy (IGABT) between 2006 and 2013 were analyzed retrospectively. We divided patients into two groups depending on the PET device used: a training set (TS) and a validation set (VS). Primary tumors were semi-automatically delineated on PET images, and 11 radiomics features were calculated (LIFEx software)...
September 15, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28916864/sparticle-an-algorithm-for-the-analysis-of-filamentous-microorganisms-in-submerged-cultures
#15
Joost Willemse, Ferhat Büke, Dino van Dissel, Sanne Grevink, Dennis Claessen, Gilles P van Wezel
Streptomycetes are filamentous bacteria that produce a plethora of bioactive natural products and industrial enzymes. Their mycelial lifestyle typically results in high heterogeneity in bioreactors, with morphologies ranging from fragments and open mycelial mats to dense pellets. There is a strong correlation between morphology and production in submerged cultures, with small and open mycelia favouring enzyme production, while most antibiotics are produced mainly in pellets. Here we describe SParticle, a Streptomyces Particle analysis method that combines whole slide imaging with automated image analysis to characterize the morphology of submerged grown Streptomyces cultures...
September 15, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28916782/predicting-clinical-outcomes-from-large-scale-cancer-genomic-profiles-with-deep-survival-models
#16
Safoora Yousefi, Fatemeh Amrollahi, Mohamed Amgad, Chengliang Dong, Joshua E Lewis, Congzheng Song, David A Gutman, Sameer H Halani, Jose Enrique Velazquez Vega, Daniel J Brat, Lee A D Cooper
Translating the vast data generated by genomic platforms into accurate predictions of clinical outcomes is a fundamental challenge in genomic medicine. Many prediction methods face limitations in learning from the high-dimensional profiles generated by these platforms, and rely on experts to hand-select a small number of features for training prediction models. In this paper, we demonstrate how deep learning and Bayesian optimization methods that have been remarkably successful in general high-dimensional prediction tasks can be adapted to the problem of predicting cancer outcomes...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28916411/3d-fusion-of-coronary-ct-angiography-and-ct-myocardial-perfusion-imaging-intuitive-assessment-of-morphology-and-function
#17
Jochen von Spiczak, Robert Manka, Manoj Mannil, Sabrina Oebel, Sandra Hamada, Kai Higashigaito, Ernst Klotz, Frank Ruschitzka, Hatem Alkadhi
BACKGROUND: The objective of this work was to support three-dimensional fusion of coronary CT angiography (coronary CTA) and CT myocardial perfusion (CT-Perf) data visualizing coronary artery stenoses and corresponding stress-induced myocardial perfusion deficits for diagnostics of coronary artery disease. METHODS: Twelve patients undergoing coronary CTA/CT-Perf after heart transplantation were included (56 ± 12 years, all males). CT image quality was rated. Coronary diameter stenoses >50% were documented for coronary CTA...
September 5, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28916333/human-plasma-metabolomics-study-across-all-stages-of-age-related-macular-degeneration-identifies-potential-lipid%C3%A2-biomarkers
#18
Inês Laíns, Rachel S Kelly, John B Miller, Rufino Silva, Demetrios G Vavvas, Ivana K Kim, Joaquim N Murta, Jessica Lasky-Su, Joan W Miller, Deeba Husain
PURPOSE: To characterize the plasma metabolomic profile of patients with age-related macular degeneration (AMD) using mass spectrometry (MS). DESIGN: Cross-sectional observational study. PARTICIPANTS: We prospectively recruited participants with a diagnosis of AMD and a control group (>50 years of age) without any vitreoretinal disease. METHODS: All participants underwent color fundus photography, used for AMD diagnosis and staging, according to the Age-Related Eye Disease Study classification scheme...
August 31, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28916321/analysis-of-resistance-genes-in-pan-resistant-myroides-odoratimimus-clinical-strain-pr63039-using-whole-genome-sequencing
#19
Desong Ming, Qing-Qing Chen, Xiao-Tin Chen
To clarify the antibiotic resistance mechanisms of Myroides odoratimimus, pan-resistant M. odoratimimus strain PR63039 was isolated and its genome sequenced and analyzed. Antimicrobial susceptibility testing was conducted using the Kirby-Bauer disk diffusion method, and the Phoenix-100 Automated Microbiology System with a NMIC/ID-4 panel including aminoglycosides, β-lactams, polypeptides, quinolones, sulfonamides, chloramphenicols, and tetracyclines. Single-molecule real-time whole genome sequencing was conducted using the PacBio RSII system, and genome annotation was performed using RAST and IMG ER...
September 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28916243/feasibility-and-accuracy-of-automated-software-for-transthoracic-three-dimensional-left-ventricular-volume-and-function-analysis-comparisons-with-two-dimensional-echocardiography-three-dimensional-transthoracic-manual-method-and-cardiac-magnetic-resonance-imaging
#20
Gloria Tamborini, Concetta Piazzese, Roberto M Lang, Manuela Muratori, Elisa Chiorino, Massimo Mapelli, Laura Fusini, Sarah Ghulam Ali, Paola Gripari, Gianluca Pontone, Daniele Andreini, Mauro Pepi
BACKGROUND: Recently, a new automated software package (HeartModel) was developed to obtain three-dimensional (3D) left ventricular (LV) volumes using a model-based algorithm (MBA) with a "one-button" simple system and user-adjustable slider. The aims of this study were to verify the feasibility and accuracy of the MBA in comparison with other commonly used imaging techniques in a large unselected population, to evaluate possible accuracy improvements of free operator border adjustments or changes of the slider's default position, and to identify differences in method accuracy related to specific pathologies...
September 12, 2017: Journal of the American Society of Echocardiography
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