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https://www.readbyqxmd.com/read/28231022/caution-regarding-catheter-directed-thrombolysis-cteph-mistaken-for-acute-submassive-pe
#1
Timothy M Fernandes, Victor G Pretorius, Nick H Kim
No abstract text is available yet for this article.
February 23, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28230731/certain-grain-foods-can-be-meaningful-contributors-to-nutrient-density-in-the-diets-of-u-s-children-and-adolescents-data-from-the-national-health-and-nutrition-examination-survey-2009-2012
#2
Yanni Papanikolaou, Victor L Fulgoni
Grain foods may play an important role in delivering nutrients to the diet of children and adolescents. The present study determined grain food sources of energy/nutrients in U.S. children and adolescents using data from the National Health and Nutrition Examination Survey, 2009-2012. Analyses of grain food sources were conducted using a 24-h recall in participants 2-18 years old (N = 6109). Sources of nutrients contained in grain foods were determined using U.S. Department of Agriculture nutrient composition databases and excluded mixed dishes...
February 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28230608/specialized-imaging-and-procedures-in-pediatric-pancreatology-a-north-american-society-for-pediatric-gastroenterology-hepatology-and-nutrition-clinical-report
#3
Tom K Lin, David M Troendle, Daniel B Wallihan, Bradley Barth, Victor L Fox, Douglas S Fishman, Veronique D Morinville
OBJECTIVES: An increasing number of children are being diagnosed with pancreatitis and other pancreatic abnormalities. Dissemination of the information regarding existing imaging techniques and endoscopic modalities to diagnose and manage pancreatic disorders in children is sorely needed. METHODS: We conducted a review of the medical literature on the use of the following imaging and procedural modalities in pediatric pancreatology: transabdominal ultrasonography (TUS), computed tomography (CT), magnetic resonance imaging (MRI)/magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasonography (EUS), and endoscopic retrograde cholangiopancreatography (ERCP)...
March 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28230508/microprobe-analysis-in-pulmonary-pathology
#4
Victor L Roggli
No abstract text is available yet for this article.
January 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28230106/longitudinal-assessments-of-normal-and-perilesional-tissues-in-focal-brain-ischemia-and-partial-optic-nerve-injury-with-manganese-enhanced-mri
#5
Kevin C Chan, Iris Y Zhou, Stanley S Liu, Yolandi van der Merwe, Shu-Juan Fan, Victor K Hung, Sookja K Chung, Wu-Tian Wu, Kwok-Fai So, Ed X Wu
Although manganese (Mn) can enhance brain tissues for improving magnetic resonance imaging (MRI) assessments, the underlying neural mechanisms of Mn detection remain unclear. In this study, we used Mn-enhanced MRI to test the hypothesis that different Mn entry routes and spatiotemporal Mn distributions can reflect different mechanisms of neural circuitry and neurodegeneration in normal and injured brains. Upon systemic administration, exogenous Mn exhibited varying transport rates and continuous redistribution across healthy rodent brain nuclei over a 2-week timeframe, whereas in rodents following photothrombotic cortical injury, transient middle cerebral artery occlusion, or neonatal hypoxic-ischemic brain injury, Mn preferentially accumulated in perilesional tissues expressing gliosis or oxidative stress within days...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230073/%C3%AE-synuclein-transfer-through-tunneling-nanotubes-occurs-in-sh-sy5y-cells-and-primary-brain-pericytes-from-parkinson-s-disease-patients
#6
Birger Victor Dieriks, Thomas I-H Park, Chantelle Fourie, Richard L M Faull, Mike Dragunow, Maurice A Curtis
Parkinson's disease (PD) is characterized by the presence of inclusions known as Lewy bodies, which mainly consist of α-synuclein (α-syn) aggregates. There is growing evidence that α-syn self-propagates in non-neuronal cells, thereby contributing to the progression and spread of PD pathology in the brain. Tunneling nanotubes (TNTs) are long, thin, F-actin-based membranous channels that connect cells and have been proposed to act as conduits for α-syn transfer between cells. SH-SY5Y cells and primary human brain pericytes, derived from postmortem PD brains, frequently form TNTs that allow α-syn transfer and long-distance electrical coupling between cells...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229914/quercetin-exerts-preventive-ameliorative-and-prophylactic-effects-on-cadmium-chloride-induced-oxidative-stress-in-the-uterus-and-ovaries-of-female-wistar-rats
#7
Victor Udo Nna, Umar Zayyanu Usman, Emmanuel Oleba Ofutet, Daniel Udofia Owu
This study examined the possible protective effect of quercetin(QE) on cadmium chloride (CdCl2) - induced reproductive toxicity in female rats. Cadmium accumulated in the uterus and ovaries of rats, decreased antioxidants [superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione (GSH)], and raised the concentrations of malondialdehyde (MDA) and hydrogen peroxide (H2O2) in the uterus and ovaries of rats. Serum concentrations of estradiol, progesterone, follicle stimulating hormone and luteinizing hormone decreased significantly after CdCl2 administration...
February 13, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28228723/presynaptic-muscarinic-acetylcholine-receptors-and-trkb-receptor-cooperate-in-the-elimination-of-redundant-motor-nerve-terminals-during-development
#8
Laura Nadal, Neus Garcia, Erica Hurtado, Anna Simó, Marta Tomàs, Maria A Lanuza, Victor Cilleros, Josep Tomàs
The development of the nervous system involves the overproduction of synapses but connectivity is refined by Hebbian activity-dependent axonal competition. The newborn skeletal muscle fibers are polyinnervated but, at the end of the competition process, some days later, become innervated by a single axon. We used quantitative confocal imaging of the autofluorescent axons from transgenic B6.Cg-Tg (Thy1-YFP)16 Jrs/J mice to investigate the possible cooperation of the muscarinic autoreceptors (mAChR, M1-, M2- and M4-subtypes) and the tyrosine kinase B (TrkB) receptor in the control of axonal elimination after the mice Levator auris longus (LAL) muscle had been exposed to several selective antagonist of the corresponding receptor pathways in vivo...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28228403/antenatal-betamethasone-attenuates-the-angiotensin-1-7-mas-receptor-nitric-oxide-axis-in-isolated-proximal-tubule-cells
#9
Yixin Su, Jianli Bi, Victor M Pulgar, Mark C Chappell, James C Rose
We previously reported a sex-specific effect of antenatal treatment with betamethasone (Beta) on sodium (Na(+)) excretion in adult sheep whereby treated males but not females had an attenuated natriuretic response to Ang-(1-7). The present study determined the Na(+) uptake and nitric oxide (NO) response to low dose Ang-(1-7) (1 pM) in renal proximal tubule cells (RPTC) from adult male and female sheep antenatally exposed to Beta or vehicle. Data were expressed as % of basal uptake or area under the curve (AUC) for Na(+) or % of control for NO...
February 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28227949/wrist-worn-heartbeat-monitoring-system-based-on-bio-impedance-analysis
#10
Jia Xu, Xiaomeng Gao, Alexander Lee, Shuhei Yamada, Ehsan Yavari, Victor Lubecke, Olga Boric-Lubecke, Jia Xu, Xiaomeng Gao, Alexander Lee, Shuhei Yamada, Ehsan Yavari, Victor Lubecke, Olga Boric-Lubecke, Olga Boric-Lubecke, Xiaomeng Gao, Shuhei Yamada, Ehsan Yavari, Jia Xu, Victor Lubecke, Alexander Lee
In this paper, a bio-impedance analysis (BIA) based wrist-worn heartbeat monitoring system is proposed. The system is able to estimate heart rate from a subject's wrist with only four electrodes. The design is achieved with a standard BIA device and off-the-shelf components for signal conditioning. The measured heartbeat-related impedance signal is compared with a reference heart rate signal obtained from piezoelectric finger pulse transducer. The BIA results agree with the reference, which validates the feasibility of the proposed system...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227770/randomness-in-resting-state-functional-connectivity-matrices
#11
Victor M Vergara, Vince Calhoun, Victor M Vergara, Vince Calhoun, Vince Calhoun, Victor M Vergara
Separate brain regions exhibit synchronous intrinsic activity used to assess connectivity patterns known to appear among brain areas. Connectivity is evaluated from functional magnetic resonance imaging (fMRI) measuring the blood oxygen level dependent signal (BOLD) signal. Extensive research has revealed a distinctive pattern of connectivity among brain areas that can be visualized through a functional connectivity matrix (FCM) matrix. As in any measurement, BOLD signals are subject to contamination from noise and nuisances unrelated to brain's intrinsic activity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227726/mobile-teleradiology-system-suitable-for-m-health-services-supporting-content-and-semantic-based-image-retrieval-on-a-grid-infrastructure
#12
Alexandra La Cruz, Ruben Medina, Francisco Vega, Wilson Perez, Blanca Ochoa, Victor Saquicela, Mauricio Espinoza, Lizandro Solano-Quinde, Maria-Esther Vidal, Alexandra La Cruz, Ruben Medina, Francisco Vega, Wilson Perez, Blanca Ochoa, Victor Saquicela, Mauricio Espinoza, Lizandro Solano-Quinde, Maria-Esther Vidal, Victor Saquicela, Francisco Vega, Mauricio Espinoza, Lizandro Solano-Quinde, Blanca Ochoa, Maria-Esther Vidal, Alexandra La Cruz, Ruben Medina, Wilson Perez
Teleradiology systems tackle the problem of transferring radiological images between medical image workstations for facilitating different medical activities, e.g., diagnosis, treatment and follow up a patient, medical training, or consulting second opinion. Nowadays, m-Health (aka mobile health) is becoming popular because of high quality of mobile displays, although remains a work in progress. In this paper a mobile teleradiology system is reported, which main contribution is the development of a platform: (1) supported by a Grid infrastructure, (2) using biomedical ontologies for adding semantic annotations on medical images, and (3) supporting semantic and content-based image retrieval...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227633/beacon-based-opportunistic-scheduling-in-wireless-body-area-network
#13
Yang Zhou, Zhengguo Sheng, Victor C M Leung, Peyman Servati, Yang Zhou, Zhengguo Sheng, Victor C M Leung, Peyman Servati, Yang Zhou, Zhengguo Sheng, Victor C M Leung, Peyman Servati
Wireless Body Area Networks (WBANs) are one of the key technologies that support the development of digital health care, which has attracted increasing attention in recent years. Compared with general Wireless Sensor Networks (WSNs), WBANs have more stringent requirements on reliability and energy efficiency. Though WBANs are applied within limited transmission range, the on-body channel condition can be very challenging because of blocking or absorbing of signal. In this paper, we are looking into the design of Medium Access Control (MAC) protocols and propose an opportunistic scheduling scheme by applying heuristic scheduling and dynamic superframe length adjustment to improve the system performance...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227294/early-diagnosis-of-nafld-nash-transition-using-mid-infrared-spectroscopy
#14
Siouar Bensaid, Amar Kachenoura, Nathalie Costet, Victor De Ledinghen, Julien Vergniol, Fabrice Laine, Bruno Turlin, Hugues Tariel, Lotfi Senhadji, Siouar Bensaid, Amar Kachenoura, Nathalie Costet, Victor De Ledinghen, Julien Vergniol, Fabrice Laine, Bruno Turlin, Hugues Tariel, Lotfi Senhadji, Hugues Tariel, Siouar Bensaid, Victor De Ledinghen, Fabrice Laine, Bruno Turlin, Lotfi Senhadji, Amar Kachenoura, Julien Vergniol, Nathalie Costet
Non-alcoholic fatty liver disease (NAFLD) is defined as an excessive accumulation of fat in the liver in the absence of excessive drinking of alcohol. Initially considered as benign and self-limited, NAFLD may progress to the malignant stage of non-alcoholic steatohepatitis (NASH) characterized by degenerate hepatocellular ballooning and lobular inflammation. NASH can lead to hepatic fibrosis and ultimately to cirrhosis and hepatocellular carcinoma. Unfortunately, the transition from NAFLD to NASH is difficult to detect so far...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227021/identification-of-promising-research-directions-using-machine-learning-aided-medical-literature-analysis
#15
Victor Andrei, Ognjen Arandjelovic, Victor Andrei, Ognjen Arandjelovic, Victor Andrei, Ognjen Arandjelovic
The rapidly expanding corpus of medical research literature presents major challenges in the understanding of previous work, the extraction of maximum information from collected data, and the identification of promising research directions. We present a case for the use of advanced machine learning techniques as an aide in this task and introduce a novel methodology that is shown to be capable of extracting meaningful information from large longitudinal corpora, and of tracking complex temporal changes within it...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226951/generating-physically-realistic-kinematic-and-dynamic-models-from-small-data-sets-an-application-for-sit-to-stand-actions
#16
Robert Peter Matthew, Victor Shia, Gentiane Venture, Ruzena Bajcsy, Robert Peter Matthew, Victor Shia, Gentiane Venture, Ruzena Bajcsy, Robert Peter Matthew, Gentiane Venture, Victor Shia, Ruzena Bajcsy
Kinematic and dynamic models are used to create simplified, yet accurate representations of reality. In application to biological systems, there is often a choice on what level of complexity is appropriate for the model. This paper introduces a structured method for obtaining an accurate model that can represent the sit-to-stand motion and reproduce the associated contact forces in the standing phase. These models are generated from small datasets, just five measured sit-to-stand actions, and result in simple, physically realisable dynamic models...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226238/defense-priming-an-adaptive-part-of-induced-resistance
#17
Brigitte Mauch-Mani, Ivan Baccelli, Estrella Luna, Victor Flors
Priming is an adaptive strategy that improves the defensive capacity of plants. This phenomenon is marked by an enhanced activation of induced defense mechanisms. Stimuli from pathogens, beneficial microbes, or arthropods, as well as chemicals and abiotic cues, can trigger the establishment of priming by acting as warning signals. Upon stimulus perception, changes may occur in the plant at the physiological, transcriptional, metabolic, and epigenetic levels. This phase is called the priming phase. Upon subsequent challenge, the plant effectively mounts a faster and/or stronger defense response that defines the postchallenge primed state and results in increased resistance and/or stress tolerance...
February 2, 2017: Annual Review of Plant Biology
https://www.readbyqxmd.com/read/28226088/epilepsy-and-early-onset-overgrowth-syndrome-revealing-sotos-syndrome
#18
Wladimir Bocca Vieira de Rezende Pinto, Paulo Victor Sgobbi de Souza, Thiago Bortholin, Erika Lopes Honorato, Leonardo Favi Bocca, Acary Souza Bulle Oliveira
No abstract text is available yet for this article.
February 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28225920/student-insight-about-the-discipline-of-surgical-technique-on-the-formative-process-in-the-school-of-medicine-of-ufrj
#19
Victor Diniz Senna, Keren Cozer, Manoel Luiz Ferreira, José Marcus Raso Eulálio, Paulo Cesar Silva, José Eduardo Ferreira Manso, Alberto Schanaider
Purpose: To evaluate whether undergraduate students feel motivated to develop surgical skills and know their impression about the importance of having a surgical technique discipline in the curriculum of a medical school. Methods: A prospective study including three classes in a row, from the 8th period (n = 265) evaluated the knowledge acquired at the Center of Experimental Surgery, Department of Surgery, School of Medicine of Federal University of Rio de Janeiro (UFRJ)...
January 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28225789/non-melanoma-skin-cancer-and-risk-of-alzheimer-s-disease-and-all-cause-dementia
#20
Sigrun A J Schmidt, Anne G Ording, Erzsébet Horváth-Puhó, Henrik T Sørensen, Victor W Henderson
Cancer patients may be at decreased risk of Alzheimer's disease. This hypothesis is best developed for non-melanoma skin cancer (NMSC), but supportive epidemiological data are sparse. We therefore conducted a nationwide cohort study of the association between NMSC and Alzheimer's disease (main outcome) and all-cause dementia. Using Danish medical databases, we identified adults diagnosed with NMSC between 1 January 1980 and 30 November 2013 (n = 216,221) and a comparison cohort of five individuals matched to each NMSC patient by sex and birth year (n = 1,081,097)...
2017: PloS One
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