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Ruprecht Schmidt-Ott, Ulf Schutter, Jörg Simon, Barbara Poulsen Nautrup, Alfred von Krempelhuber, Kusuma Gopala, Anastassia Anastassopoulou, Adrienne Guignard, Desmond Curran, Sean Matthews, Emmanuelle Espié
OBJECTIVES: Herpes zoster (HZ) mainly affects elderly people and immunocompromised individuals. HZ is usually characterized by a unilateral painful skin rash. Its most common complication, postherpetic neuralgia (PHN), may cause chronic debilitating pain. This study aimed to estimate the HZ incidence in individuals aged ≥50 years in Germany, the proportion of PHN and the economic burden. METHODS: From 2010 to 2014, HZ patients were recruited when consulting physicians in physician networks covering about 157,000 persons aged ≥50 years...
May 2018: Journal of Infection
Alessia Quatela, Adam M Gilmore, Karen E Steege Gall, Marinella Sandros, Karoly Csatorday, Alex Siemiarczuk, Boqian Ben Yang, Loïc Camenen
We investigate the new simultaneous absorbance-transmission and fluorescence excitation-emission matrix method for rapid and effective characterization of the varying components from a mixture. The absorbance-transmission and fluorescence excitation-emission matrix method uniquely facilitates correction of fluorescence inner-filter effects to yield quantitative fluorescence spectral information that is largely independent of component concentration. This is significant because it allows one to effectively monitor quantitative component changes using multivariate methods and to generate and evaluate spectral libraries...
February 5, 2018: Methods and Applications in Fluorescence
Alessia Quatela, Adam Gilmore, Karen E Steege Gall, Marinella Sandros, Karoly Csatorday, Alex Siemiarczuk, Boqian Ben Yang, Loïc Camenen
We investigate the new simultaneous Absorbance-Transmission and fluorescence Excitation-Emission Matrix method for rapid and effective characterization of the varying components from a mixture. The Absorbance-Transmission and fluorescence Excitation-Emission Matrix method uniquely facilitates correction of fluorescence inner-filter effects to yield quantitative fluorescence spectral information that is largely independent of component concentration. This is significant because it allows one to effectively monitor quantitative component changes using multivariate methods and to generate and evaluate spectral libraries...
January 16, 2018: Methods and Applications in Fluorescence
Selina Wallis, Donald C Cole, Oumar Gaye, Blandina T Mmbaga, Victor Mwapasa, Harry Tagbor, Imelda Bates
OBJECTIVES: Research is key to achieving global development goals. Our objectives were to develop and test an evidence-informed process for assessing health research management and support systems (RMSS) in four African universities and for tracking interventions to address capacity gaps. SETTING: Four African universities. PARTICIPANTS: 83 university staff and students from 11 cadres. INTERVENTION/METHODS: A literature-informed 'benchmark' was developed and used to itemise all components of a university's health RMSS...
September 5, 2017: BMJ Open
Stefania L Magda, Raluca I Mincu, Maria Florescu, Andrea O Ciobanu, Gabriela F Udrea, Mircea Cinteza, Dragos Vinereanu
BACKGROUND AND PURPOSE: Rheumatoid arthritis (RA) causes frequently cardiovascular complications, probably determined by early atherosclerosis in connection to chronic systemic inflammation. Purpose of our study was to assess subclinical cardiac and vascular dysfunction, and to evaluate the mechanisms of ventriculo-arterial interaction, in patients with correctly treated RA vs. normal subjects. METHODS: We evaluated 46 subjects (55±10 years, 2 men): 29 patients with seropositive treated RA (mean duration of 11±9 years), without documented cardiovascular or pulmonary disease, and 17 control subjects, matched for age, sex, and distribution of conventional major risk factors...
December 2016: Mædica
Zengjian Liu, Buzhou Tang, Xiaolong Wang, Qingcai Chen
De-identification, identifying information from data, such as protected health information (PHI) present in clinical data, is a critical step to enable data to be shared or published. The 2016 Centers of Excellence in Genomic Science (CEGS) Neuropsychiatric Genome-scale and RDOC Individualized Domains (N-GRID) clinical natural language processing (NLP) challenge contains a de-identification track in de-identifying electronic medical records (EMRs) (i.e., track 1). The challenge organizers provide 1000 annotated mental health records for this track, 600 out of which are used as a training set and 400 as a test set...
November 2017: Journal of Biomedical Informatics
Matylda Hennig, Agnieszka Brandt, Joanna Bautembach-Minkowska, Dominik Świętoń, Agnieszka Mickiewicz, Magdalenia Chmara, Bartosz Wasąg, Ewa Kamińska, Anna Balcerska, Janusz Limon, Andrzej Rynkiewicz, Marcin Gruchała, Małgorzata Myśliwiec
INTRODUCTION: Familial hypercholesterolemia (FH) is one of the most common autosomal dominant disorders. It is characterized by elevated LDL cholesterol levels occurring already by early childhood. Awareness of health risks in FH patients should incite health professionals to actively seek and treat children with lipid disorders to reduce their risk of myocardial infarction and stroke. OBJECTIVE: The aim of the study was to evaluate the suitability of taking into account the following parameters: ApoB/ApoA index, IMT and e-tracking examination, when initiating statin therapy in FH patients...
2017: Developmental Period Medicine
Mathieu Collette, Carlo Palombo, Carmela Morizzo, Sara Sbragi, Michaela Kozakova, Georges Leftheriotis
Described here is a new method for determination of carotid-femoral pulse wave velocity (PWV) based on arterial diameter waveform recording by an ultrasound system. The study was carried out on 120 consecutive patients. Carotid-femoral PWV was determined using a tonometric technique (PWVpp, PulsePen, DiaTecne, Milan, Italy) and an echotracking ultrasound system (PWVet, E-Track, Aloka, Tokyo, Japan). The relationship between PWVpp and PWVet was evaluated by linear regression and Bland-Altman analysis. There was excellent agreement between PWVet and PWVpp (Pearson's r = 0...
June 2017: Ultrasound in Medicine & Biology
Yixin Guo, Junfeng Liu, Denise L Mauzerall, Xiaoyuan Li, Larry W Horowitz, Wei Tao, Shu Tao
Ground-level ozone (O3), harmful to most living things, is produced from both domestic and foreign emissions of anthropogenic precursors. Previous estimates of the linkage from distant sources rely on the sensitivity approach (i.e., modeling the change of ozone concentrations that result from modifying precursor emissions) as well as the tagging approach (i.e., tracking ozone produced from specific O3 precursors emitted from one region). Here, for the first time, we tag all O3 precursors (i.e., nitrogen oxides (NOx), carbon monoxide (CO), and volatile organic compounds (VOCs)) from East Asia and explicitly track their physicochemical evolution without perturbing the nonlinear O3 chemistry...
May 2, 2017: Environmental Science & Technology
Violeta Rabrenovich, David M Baer, Joanne E Schottinger
139 Background: Kaiser Permanente (KP) is an integrated health care delivery system that provides clinical services to over 10 million members in nine states and the District of Columbia. Since 2007, KP oncology community collaborates at the national level to systematically improve safety and quality of care. Our improvements are accelerated by rapid adoption of evidence based protocols, leveraging of EMR and integration of quality improvement methods into clinical operations. METHODS: KP created a team that included oncologists, hepatologists, rheumatologist, pharmacy, and quality improvement experts to evaluate safety of existing practice...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
B J Zwan, E Colvill, J Booth, D J O'Connor, P Keall, P B Greer
PURPOSE: The added complexity of the real-time adaptive multi-leaf collimator (MLC) tracking increases the likelihood of undetected MLC delivery errors. In this work we develop and test a system for real-time delivery verification and error detection for MLC tracking radiotherapy using an electronic portal imaging device (EPID). METHODS: The delivery verification system relies on acquisition and real-time analysis of transit EPID image frames acquired at 8.41 fps...
June 2016: Medical Physics
Elizabeth A Simpson, Annika Paukner, Valentina Sclafani, Stefano S K Kaburu, Stephen J Suomi, Pier F Ferrari
RATIONALE: Exogenous oxytocin administration is widely reported to improve social cognition in human and nonhuman primate adults. Risk factors of impaired social cognition, however, emerge in infancy. Early interventions-when plasticity is greatest-are critical to reverse negative outcomes. OBJECTIVE: We tested the hypothesis that oxytocin may exert similar positive effects on infant social cognition, as in adults. To test this idea, we assessed the effectiveness of acute, aerosolized oxytocin on two foundational social cognitive skills: working memory (i...
February 2017: Psychopharmacology
Nlingisisi D Babayani, Jan A van Wyk, Eric R Morgan
Infection with the abomasal nematode Haemonchus contortus is responsible for considerable production loss in small ruminants globally, and especially in warm, summer-rainfall regions. Previous attempts to predict infection levels have followed the traditional framework for macroparasite models, i.e. tracking parasite population sizes as a function of host and climatic factors. Targeted treatment strategies, in which patho-physiological indices are used to identify the individuals most affected by parasites, could provide a foundation for alternative, incidence-based epidemiological models...
November 1, 2016: Preventive Veterinary Medicine
Bernard Grandjean, Marc A Maier
Muscle spindle discharge during active movement is a function of mechanical and neural parameters. Muscle length changes (and their derivatives) represent its primary mechanical, fusimotor drive its neural component. However, neither the action nor the function of fusimotor and in particular of γ-drive, have been clearly established, since γ-motor activity during voluntary, non-locomotor movements remains largely unknown. Here, using a computational approach, we explored whether γ-drive emerges in an artificial neural network model of the corticospinal system linked to a biomechanical antagonist wrist simulator...
February 2017: Journal of Computational Neuroscience
Andrei Barcaru, Eduard Derks, Gabriel Vivó-Truyols
A novel peak tracking method based on Bayesian statistics is proposed. The method consists of assigning (i.e. tracking) peaks from two GCxGC-FID data sets of the same sample taken in different conditions. Opposed to traditional (i.e. deterministic) peak tracking algorithms, in which the assignment problem is solved with a unique solution, the proposed algorithm is probabilistic. In other words, we quantify the uncertainty of matching two peaks without excluding other possible candidates, ranking the possible peak assignments regarding their posterior probability...
October 12, 2016: Analytica Chimica Acta
Romain Pirracchio, John K Yue, Geoffrey T Manley, Mark J van der Laan, Alan E Hubbard
Standard statistical practice used for determining the relative importance of competing causes of disease typically relies on ad hoc methods, often byproducts of machine learning procedures (stepwise regression, random forest, etc.). Causal inference framework and data-adaptive methods may help to tailor parameters to match the clinical question and free one from arbitrary modeling assumptions. Our focus is on implementations of such semiparametric methods for a variable importance measure (VIM). We propose a fully automated procedure for VIM based on collaborative targeted maximum likelihood estimation (cTMLE), a method that optimizes the estimate of an association in the presence of potentially numerous competing causes...
January 2018: Statistical Methods in Medical Research
Denisa Salihović Hajdarević, Aleksandra M Pavlović, Dzevdet Smajlović, Ana Podgorac, Zagorka Jovanović, Tamara Svabić Medjedović, Nadezda Covicković Sternić
INTRODUCTION: Cerebral ischemic small-vessel disease (SVD), causing lacunar infarcts and white matter hyperintensities on brain magnetic resonance imaging (MRI), is a progressive disease associated with an increased risk of stroke, dementia and death. Increased arterial stiffness has been associated with ischemic stroke and cerebral SVD independently of common vascular risk factors. OBJECTIVE: The aim of the study was to analyze arterial stiffness in our patients with symptomatic SVD...
January 2016: Srpski Arhiv za Celokupno Lekarstvo
Vanja Basić Kes, Miljenka-Jelena Jurasić, Iris Zavoreo, Lejla Corić, Kresimir Rotim
Recently migraine has been associated with increased arterial stiffness, procoagulant state, increased incidence of cerebral white matter lesions (WML) and stroke. Our aim was to compare the characteristics of migraineurs to headache free controls regarding their functional carotid ultrasound parameters. Sixty patients (45 women) with migraine (mean age 40.42 ± 10.61 years) were compared with 45 controls (30 women) with no prior history of repeating headache (mean age 38.94 ± 5.46 years) using E-tracking software on Alpha 10 ultrasound platform...
December 2015: Acta Clinica Croatica
Anne Choquette, Janet E Rennick, Virginia Lee
BACKGROUND: Little is known about the influence of cancer on the adolescent's developing self-identity and social relationships as he/she transitions back to school following cancer treatment. OBJECTIVE: The purpose of this study was to explore the meaning of returning to school for adolescents who have completed cancer treatment. METHODS: In this qualitative study, in-depth interviews using an interpretive descriptive approach were conducted with 11 adolescents (aged 13-17 years) who had completed treatment for cancer...
September 2016: Cancer Nursing
Michelle Hurst, Sara Cordes
Although fractions, decimals, and whole numbers can be used to represent the same rational-number values, it is unclear whether adults conceive of these rational-number magnitudes as lying along the same ordered mental continuum. In the current study, we investigated whether adults' processing of rational-number magnitudes in fraction, decimal, and whole-number notation show systematic ratio-dependent responding characteristic of an integrated mental continuum. Both reaction time (RT) and eye-tracking data from a number-magnitude comparison task revealed ratio-dependent performance when adults compared the relative magnitudes of rational numbers, both within the same notation (e...
February 2016: Journal of Experimental Psychology. Human Perception and Performance
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