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Michael Vogt

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https://www.readbyqxmd.com/read/28434997/multi-photon-microscopy-in-cardiovascular-research
#1
REVIEW
Zhuojun Wu, Timo Rademakers, Fabian Kiessling, Michael Vogt, Erik Westein, Christian Weber, Remco Ta Megens, Marc van Zandvoort
Multiphoton laser scanning microscopy has proven profound value for ex vivo 3D histology and in vivo imaging of motionless tissue. The development of triggering systems and fast imaging methods, combined with advanced preparation procedures solved the challenging task of intravital imaging of the fast pulsating heart and major arteries in animals and further increased the popularity of intravital multiphoton imaging in cardiovascular research. This review article will highlight the potential of multiphoton microscopy for the visualization and characterization of dynamical and structural processes involved in cardiac and vascular diseases, both in an ex vivo and an intravital animal setting...
April 18, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28413018/plaa-mutations-cause-a-lethal-infantile-epileptic-encephalopathy-by-disrupting-ubiquitin-mediated-endolysosomal-degradation-of-synaptic-proteins
#2
Emma A Hall, Michael S Nahorski, Lyndsay M Murray, Ranad Shaheen, Emma Perkins, Kosala N Dissanayake, Yosua Kristaryanto, Ross A Jones, Julie Vogt, Manon Rivagorda, Mark T Handley, Girish R Mali, Tooba Quidwai, Dinesh C Soares, Margaret A Keighren, Lisa McKie, Richard L Mort, Noor Gammoh, Amaya Garcia-Munoz, Tracey Davey, Matthieu Vermeren, Diana Walsh, Peter Budd, Irene A Aligianis, Eissa Faqeih, Alan J Quigley, Ian J Jackson, Yogesh Kulathu, Mandy Jackson, Richard R Ribchester, Alex von Kriegsheim, Fowzan S Alkuraya, C Geoffrey Woods, Eamonn R Maher, Pleasantine Mill
During neurotransmission, synaptic vesicles undergo multiple rounds of exo-endocytosis, involving recycling and/or degradation of synaptic proteins. While ubiquitin signaling at synapses is essential for neural function, it has been assumed that synaptic proteostasis requires the ubiquitin-proteasome system (UPS). We demonstrate here that turnover of synaptic membrane proteins via the endolysosomal pathway is essential for synaptic function. In both human and mouse, hypomorphic mutations in the ubiquitin adaptor protein PLAA cause an infantile-lethal neurodysfunction syndrome with seizures...
April 10, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28409011/utility-of-t-wave-amplitude-as-a-non-invasive-risk-marker-of-sudden-cardiac-death-in-hypertrophic-cardiomyopathy
#3
Alan Sugrue, Ammar M Killu, Christopher V DeSimone, Anwar A Chahal, Josh C Vogt, Vaclav Kremen, JoJo Hai, David O Hodge, Nancy G Acker, Jeffrey B Geske, Michael J Ackerman, Steve R Ommen, Grace Lin, Peter A Noseworthy, Peter A Brady
OBJECTIVE: Sudden cardiac arrest (SCA) is the most devastating outcome in hypertrophic cardiomyopathy (HCM). We evaluated repolarisation features on the surface electrocardiogram (ECG) to identify the potential risk factors for SCA. METHODS: Data was collected from 52 patients with HCM who underwent implantable cardioverter defibrillator (ICD) implantation. Leads V2 and V5 from the ECG closest to the time of ICD implant were utilised for measuring the Tpeak-Tend interval (Tpe), QTc, Tpe/QTc, T-wave duration and T-wave amplitude...
2017: Open Heart
https://www.readbyqxmd.com/read/28375139/multi-stage-3d-2d-registration-for-correction-of-anatomical-deformation-in-image-guided-spine-surgery
#4
Michael Daniel Ketcha, Tharindu De Silva, Ali Uneri, Matthew Jacobson, Joseph Goerres, Gerhard Kleinszig, Sebastian Vogt, Jean-Paul Wolinsky, Jeffrey Siewerdsen
PURPOSE: A multi-stage image-based 3D-2D registration method is presented that maps annotations in a 3D image (e.g., point labels annotating individual vertebrae in preoperative CT) to an intraoperative radiograph in which the patient has undergone non-rigid anatomical deformation due to changes in patient positioning or due to the intervention itself. METHODS: The proposed method (termed msLevelCheck) extends a previous rigid registration solution (LevelCheck) to provide an accurate mapping of vertebral labels in the presence of spinal deformation...
April 4, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28374362/-controls-following-the-first-screening-colonoscopy
#5
REVIEW
Klaus Weckbecker, Michael Vogt
No abstract text is available yet for this article.
April 2017: MMW Fortschritte der Medizin
https://www.readbyqxmd.com/read/28335271/distribution-of-iron-oxide-core-titanium-dioxide-shell-nanoparticles-in-vx2-tumor-bearing-rabbits-introduced-by-two-different-delivery-modalities
#6
Tamer Refaat, Derek West, Samar El Achy, Vamsi Parimi, Jasmine May, Lun Xin, Kathleen R Harris, William Liu, Michael Beau Wanzer, Lydia Finney, Evan Maxey, Stefan Vogt, Reed A Omary, Daniele Procissi, Andrew C Larson, Tatjana Paunesku, Gayle E Woloschak
This work compares intravenous (IV) versus fluoroscopy-guided transarterial intra-catheter (IC) delivery of iron oxide core-titanium dioxide shell nanoparticles (NPs) in vivo in VX2 model of liver cancer in rabbits. NPs coated with glucose and decorated with a peptide sequence from cortactin were administered to animals with developed VX2 liver cancer. Two hours after NPs delivery tumors, normal liver, kidney, lung and spleen tissues were harvested and used for a series on histological and elemental analysis tests...
August 3, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28327570/puf60-variants-cause-a-syndrome-of-id-short-stature-microcephaly-coloboma-craniofacial-cardiac-renal-and-spinal-features
#7
Karen J Low, Morad Ansari, Rami Abou Jamra, Angus Clarke, Salima El Chehadeh, David R FitzPatrick, Mark Greenslade, Alex Henderson, Jane Hurst, Kory Keller, Paul Kuentz, Trine Prescott, Franziska Roessler, Kaja K Selmer, Michael C Schneider, Fiona Stewart, Katrina Tatton-Brown, Julien Thevenon, Magnus D Vigeland, Julie Vogt, Marjolaine Willems, Jonathan Zonana, D D D Study, Sarah F Smithson
PUF60 encodes a nucleic acid-binding protein, a component of multimeric complexes regulating RNA splicing and transcription. In 2013, patients with microdeletions of chromosome 8q24.3 including PUF60 were found to have developmental delay, microcephaly, craniofacial, renal and cardiac defects. Very similar phenotypes have been described in six patients with variants in PUF60, suggesting that it underlies the syndrome. We report 12 additional patients with PUF60 variants who were ascertained using exome sequencing: six through the Deciphering Developmental Disorders Study and six through similar projects...
May 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28322423/uptake-of-non-vitamin-k-antagonist-oral-anti-coagulants-in-patients-with-atrial-fibrillation-a-prospective-cohort-study
#8
Matylda Zimny, Steffen Blum, Peter Ammann, Paul Erne, Giorgio Moschovitis, Marcello Di Valentino, Dipen Shah, Jürg Schläpfer, Cyrill Vogt, Alexandra Tabord, Michael Kühne, Christian Sticherling, Stefan Osswald, David Conen
AIMS: We aimed to assess the uptake of non-vitamin K antagonist oral anticoagulants (NOACs) among patients with atrial fibrillation between 2010 and 2015 in Switzerland. METHODS: We performed a prospective observational cohort study. At the baseline examination and during yearly follow-ups, we used questionnaires to obtain information about clinical characteristics and antithrombotic treatment. Stroke risk was assessed using the CHA2DS2-VASc score. RESULTS: 1545 patients were enrolled across seven centres in Switzerland...
March 21, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28177300/spinal-pedicle-screw-planning-using-deformable-atlas-registration
#9
J Goerres, A Uneri, T De Silva, M Ketcha, S Reaungamornrat, M Jacobson, S Vogt, G Kleinszig, G Osgood, J-P Wolinsky, J H Siewerdsen
Spinal screw placement is a challenging task due to small bone corridors and high risk of neurological or vascular complications, benefiting from precision guidance/navigation and quality assurance (QA). Implicit to both guidance and QA is the definition of a surgical plan-i.e. the desired trajectories and device selection for target vertebrae-conventionally requiring time-consuming manual annotations by a skilled surgeon. We propose automation of such planning by deriving the pedicle trajectory and device selection from a patient's preoperative CT or MRI...
April 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28163879/aerodynamic-evaluation-of-wing-shape-and-wing-orientation-in-four-butterfly-species-using-numerical-simulations-and-a-low-speed-wind-tunnel-and-its-implications-for-the-design-of-flying-micro-robots
#10
Alejandro Ortega Ancel, Rodney Eastwood, Daniel Vogt, Carter Ithier, Michael Smith, Rob Wood, Mirko Kovač
Many insects are well adapted to long-distance migration despite the larger energetic costs of flight for small body sizes. To optimize wing design for next-generation flying micro-robots, we analyse butterfly wing shapes and wing orientations at full scale using numerical simulations and in a low-speed wind tunnel at 2, 3.5 and 5 m s(-1). The results indicate that wing orientations which maximize wing span lead to the highest glide performance, with lift to drag ratios up to 6.28, while spreading the fore-wings forward can increase the maximum lift produced and thus improve versatility...
February 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/28154014/a-tumor-cell-selective-inhibitor-of-mitogen-activated-protein-kinase-phosphatases-sensitizes-breast-cancer-cells-to-lymphokine-activated-killer-cell-activity
#11
Christof T Kaltenmeier, Laura L Vollmer, Lawrence A Vernetti, Lindsay Caprio, Keanu Davis, Vasiliy N Korotchenko, Billy W Day, Michael Tsang, Keren I Hulkower, Michael T Lotze, Andreas Vogt
Dual specificity mitogen-activated protein kinase (MAPK) phosphatases [dual specificity phosphatase/MAP kinase phosphatase (DUSP-MKP)] have been hypothesized to maintain cancer cell survival by buffering excessive MAPK signaling caused by upstream activating oncogenic products. A large and diverse body of literature suggests that genetic depletion of DUSP-MKPs can reduce tumorigenicity, suggesting that hyperactivating MAPK signaling by DUSP-MKP inhibitors could be a novel strategy to selectively affect the transformed phenotype...
April 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28146470/rare-and-low-frequency-coding-variants-alter-human-adult-height
#12
Eirini Marouli, Mariaelisa Graff, Carolina Medina-Gomez, Ken Sin Lo, Andrew R Wood, Troels R Kjaer, Rebecca S Fine, Yingchang Lu, Claudia Schurmann, Heather M Highland, Sina Rüeger, Gudmar Thorleifsson, Anne E Justice, David Lamparter, Kathleen E Stirrups, Valérie Turcot, Kristin L Young, Thomas W Winkler, Tõnu Esko, Tugce Karaderi, Adam E Locke, Nicholas G D Masca, Maggie C Y Ng, Poorva Mudgal, Manuel A Rivas, Sailaja Vedantam, Anubha Mahajan, Xiuqing Guo, Goncalo Abecasis, Katja K Aben, Linda S Adair, Dewan S Alam, Eva Albrecht, Kristine H Allin, Matthew Allison, Philippe Amouyel, Emil V Appel, Dominique Arveiler, Folkert W Asselbergs, Paul L Auer, Beverley Balkau, Bernhard Banas, Lia E Bang, Marianne Benn, Sven Bergmann, Lawrence F Bielak, Matthias Blüher, Heiner Boeing, Eric Boerwinkle, Carsten A Böger, Lori L Bonnycastle, Jette Bork-Jensen, Michiel L Bots, Erwin P Bottinger, Donald W Bowden, Ivan Brandslund, Gerome Breen, Murray H Brilliant, Linda Broer, Amber A Burt, Adam S Butterworth, David J Carey, Mark J Caulfield, John C Chambers, Daniel I Chasman, Yii-Der Ida Chen, Rajiv Chowdhury, Cramer Christensen, Audrey Y Chu, Massimiliano Cocca, Francis S Collins, James P Cook, Janie Corley, Jordi Corominas Galbany, Amanda J Cox, Gabriel Cuellar-Partida, John Danesh, Gail Davies, Paul I W de Bakker, Gert J de Borst, Simon de Denus, Mark C H de Groot, Renée de Mutsert, Ian J Deary, George Dedoussis, Ellen W Demerath, Anneke I den Hollander, Joe G Dennis, Emanuele Di Angelantonio, Fotios Drenos, Mengmeng Du, Alison M Dunning, Douglas F Easton, Tapani Ebeling, Todd L Edwards, Patrick T Ellinor, Paul Elliott, Evangelos Evangelou, Aliki-Eleni Farmaki, Jessica D Faul, Mary F Feitosa, Shuang Feng, Ele Ferrannini, Marco M Ferrario, Jean Ferrieres, Jose C Florez, Ian Ford, Myriam Fornage, Paul W Franks, Ruth Frikke-Schmidt, Tessel E Galesloot, Wei Gan, Ilaria Gandin, Paolo Gasparini, Vilmantas Giedraitis, Ayush Giri, Giorgia Girotto, Scott D Gordon, Penny Gordon-Larsen, Mathias Gorski, Niels Grarup, Megan L Grove, Vilmundur Gudnason, Stefan Gustafsson, Torben Hansen, Kathleen Mullan Harris, Tamara B Harris, Andrew T Hattersley, Caroline Hayward, Liang He, Iris M Heid, Kauko Heikkilä, Øyvind Helgeland, Jussi Hernesniemi, Alex W Hewitt, Lynne J Hocking, Mette Hollensted, Oddgeir L Holmen, G Kees Hovingh, Joanna M M Howson, Carel B Hoyng, Paul L Huang, Kristian Hveem, M Arfan Ikram, Erik Ingelsson, Anne U Jackson, Jan-Håkan Jansson, Gail P Jarvik, Gorm B Jensen, Min A Jhun, Yucheng Jia, Xuejuan Jiang, Stefan Johansson, Marit E Jørgensen, Torben Jørgensen, Pekka Jousilahti, J Wouter Jukema, Bratati Kahali, René S Kahn, Mika Kähönen, Pia R Kamstrup, Stavroula Kanoni, Jaakko Kaprio, Maria Karaleftheri, Sharon L R Kardia, Fredrik Karpe, Frank Kee, Renske Keeman, Lambertus A Kiemeney, Hidetoshi Kitajima, Kirsten B Kluivers, Thomas Kocher, Pirjo Komulainen, Jukka Kontto, Jaspal S Kooner, Charles Kooperberg, Peter Kovacs, Jennifer Kriebel, Helena Kuivaniemi, Sébastien Küry, Johanna Kuusisto, Martina La Bianca, Markku Laakso, Timo A Lakka, Ethan M Lange, Leslie A Lange, Carl D Langefeld, Claudia Langenberg, Eric B Larson, I-Te Lee, Terho Lehtimäki, Cora E Lewis, Huaixing Li, Jin Li, Ruifang Li-Gao, Honghuang Lin, Li-An Lin, Xu Lin, Lars Lind, Jaana Lindström, Allan Linneberg, Yeheng Liu, Yongmei Liu, Artitaya Lophatananon, Jian'an Luan, Steven A Lubitz, Leo-Pekka Lyytikäinen, David A Mackey, Pamela A F Madden, Alisa K Manning, Satu Männistö, Gaëlle Marenne, Jonathan Marten, Nicholas G Martin, Angela L Mazul, Karina Meidtner, Andres Metspalu, Paul Mitchell, Karen L Mohlke, Dennis O Mook-Kanamori, Anna Morgan, Andrew D Morris, Andrew P Morris, Martina Müller-Nurasyid, Patricia B Munroe, Mike A Nalls, Matthias Nauck, Christopher P Nelson, Matt Neville, Sune F Nielsen, Kjell Nikus, Pål R Njølstad, Børge G Nordestgaard, Ioanna Ntalla, Jeffrey R O'Connel, Heikki Oksa, Loes M Olde Loohuis, Roel A Ophoff, Katharine R Owen, Chris J Packard, Sandosh Padmanabhan, Colin N A Palmer, Gerard Pasterkamp, Aniruddh P Patel, Alison Pattie, Oluf Pedersen, Peggy L Peissig, Gina M Peloso, Craig E Pennell, Markus Perola, James A Perry, John R B Perry, Thomas N Person, Ailith Pirie, Ozren Polasek, Danielle Posthuma, Olli T Raitakari, Asif Rasheed, Rainer Rauramaa, Dermot F Reilly, Alex P Reiner, Frida Renström, Paul M Ridker, John D Rioux, Neil Robertson, Antonietta Robino, Olov Rolandsson, Igor Rudan, Katherine S Ruth, Danish Saleheen, Veikko Salomaa, Nilesh J Samani, Kevin Sandow, Yadav Sapkota, Naveed Sattar, Marjanka K Schmidt, Pamela J Schreiner, Matthias B Schulze, Robert A Scott, Marcelo P Segura-Lepe, Svati Shah, Xueling Sim, Suthesh Sivapalaratnam, Kerrin S Small, Albert Vernon Smith, Jennifer A Smith, Lorraine Southam, Timothy D Spector, Elizabeth K Speliotes, John M Starr, Valgerdur Steinthorsdottir, Heather M Stringham, Michael Stumvoll, Praveen Surendran, Leen M 't Hart, Katherine E Tansey, Jean-Claude Tardif, Kent D Taylor, Alexander Teumer, Deborah J Thompson, Unnur Thorsteinsdottir, Betina H Thuesen, Anke Tönjes, Gerard Tromp, Stella Trompet, Emmanouil Tsafantakis, Jaakko Tuomilehto, Anne Tybjaerg-Hansen, Jonathan P Tyrer, Rudolf Uher, André G Uitterlinden, Sheila Ulivi, Sander W van der Laan, Andries R Van Der Leij, Cornelia M van Duijn, Natasja M van Schoor, Jessica van Setten, Anette Varbo, Tibor V Varga, Rohit Varma, Digna R Velez Edwards, Sita H Vermeulen, Henrik Vestergaard, Veronique Vitart, Thomas F Vogt, Diego Vozzi, Mark Walker, Feijie Wang, Carol A Wang, Shuai Wang, Yiqin Wang, Nicholas J Wareham, Helen R Warren, Jennifer Wessel, Sara M Willems, James G Wilson, Daniel R Witte, Michael O Woods, Ying Wu, Hanieh Yaghootkar, Jie Yao, Pang Yao, Laura M Yerges-Armstrong, Robin Young, Eleftheria Zeggini, Xiaowei Zhan, Weihua Zhang, Jing Hua Zhao, Wei Zhao, Wei Zhao, He Zheng, Wei Zhou, Jerome I Rotter, Michael Boehnke, Sekar Kathiresan, Mark I McCarthy, Cristen J Willer, Kari Stefansson, Ingrid B Borecki, Dajiang J Liu, Kari E North, Nancy L Heard-Costa, Tune H Pers, Cecilia M Lindgren, Claus Oxvig, Zoltán Kutalik, Fernando Rivadeneira, Ruth J F Loos, Timothy M Frayling, Joel N Hirschhorn, Panos Deloukas, Guillaume Lettre
Height is a highly heritable, classic polygenic trait with approximately 700 common associated variants identified through genome-wide association studies so far. Here, we report 83 height-associated coding variants with lower minor-allele frequencies (in the range of 0.1-4.8%) and effects of up to 2 centimetres per allele (such as those in IHH, STC2, AR and CRISPLD2), greater than ten times the average effect of common variants. In functional follow-up studies, rare height-increasing alleles of STC2 (giving an increase of 1-2 centimetres per allele) compromised proteolytic inhibition of PAPP-A and increased cleavage of IGFBP-4 in vitro, resulting in higher bioavailability of insulin-like growth factors...
February 9, 2017: Nature
https://www.readbyqxmd.com/read/28143765/functional-expression-of-plant-derived-o-methyltransferase-flavanone-3-hydroxylase-and-flavonol-synthase-in-corynebacterium-glutamicum-for-production-of-pterostilbene-kaempferol-and-quercetin
#13
Nicolai Kallscheuer, Michael Vogt, Michael Bott, Jan Marienhagen
Plant polyphenols receive significant attention due to their anti-oxidative and health-promoting properties, and several microorganisms are currently engineered towards producing these valuable compounds. Previously, Corynebacterium glutamicum has been engineered for synthesizing polyphenol core structures such as the stilbene resveratrol and the (2S)-flavanone naringenin. Decoration of these compounds by O-methylation or hydroxylation would provide access to polyphenols of even higher commercial interest. In this study, introduction of a heterologous O-methyltransferase into a resveratrol-producing C...
January 28, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28128342/primary-human-placental-trophoblasts-are-permissive-for-zika-virus-zikv-replication
#14
Kjersti M Aagaard, Anismrita Lahon, Melissa A Suter, Ravi P Arya, Maxim D Seferovic, Megan B Vogt, Min Hu, Fabio Stossi, Michael A Mancini, R Alan Harris, Maike Kahr, Catherine Eppes, Martha Rac, Michael A Belfort, Chun Shik Park, Daniel Lacorazza, Rebecca Rico-Hesse
Zika virus (ZIKV) is an emerging mosquito-borne (Aedes genus) arbovirus of the Flaviviridae family. Although ZIKV has been predominately associated with a mild or asymptomatic dengue-like disease, its appearance in the Americas has been accompanied by a multi-fold increase in reported incidence of fetal microcephaly and brain malformations. The source and mode of vertical transmission from mother to fetus is presumptively transplacental, although a causal link explaining the interval delay between maternal symptoms and observed fetal malformations following infection has been missing...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28125695/novel-mutant-aav2-rep-proteins-support-aav2-replication-without-blocking-hsv-1-helpervirus-replication
#15
Michael Seyffert, Daniel L Glauser, Elisabeth M Schraner, Anna-Paula de Oliveira, Jorge Mansilla-Soto, Bernd Vogt, Hildegard Büning, R Michael Linden, Mathias Ackermann, Cornel Fraefel
As their names imply, parvoviruses of the genus Dependovirus rely for their efficient replication on the concurrent presence of a helpervirus, such as herpesvirus, adenovirus, or papilloma virus. Adeno-associated virus 2 (AAV2) is such an example, which in turn can efficiently inhibit the replication of each helpervirus by distinct mechanisms. In a previous study we have shown that expression of the AAV2 rep gene is not compatible with efficient replication of herpes simplex virus 1 (HSV-1). In particular, the combined DNA-binding and ATPase/helicase activities of the Rep68/78 proteins have been shown to exert opposite effects on the replication of AAV2 and HSV-1...
2017: PloS One
https://www.readbyqxmd.com/read/28121776/collaborative-public-health-investigation-of-clenbuterol-adulterated-heroin-outbreak-richmond-virginia-march-april-2015
#16
Brigette Gleason, Angela West, Danny Avula, Okey Utah, Marshall Vogt, Kirk Cumpston, Michael Kelly, Paul Brasler, Shane Wyatt, Laurie Forlano
CONTEXT: In March 2015, the Virginia Department of Health (VDH) was alerted by the Virginia Poison Center of a 6-patient cluster treated for severe clinical presentations after using heroin. Patients' symptoms were atypical for heroin use, and concern existed that patients were exposed to heroin that had been adulterated with or replaced by another substance. OBJECTIVE: To understand the extent and characterization of the outbreak and implement response measures to prevent further cases...
March 2017: Journal of Public Health Management and Practice: JPHMP
https://www.readbyqxmd.com/read/28121368/pharmacokinetics-and-pharmacodynamics-of-single-doses-of-rivaroxaban-in-obese-patients-before-and-after-bariatric-surgery
#17
Dino Kröll, Guido Stirnimann, Andreas Vogt, Desirée Lin Lee Lai, Yves Michael Borbély, Julia Altmeier, Sabine Schädelin, Daniel Candinas, Lorenzo Alberio, Philipp C Nett
AIMS: Venous thromboembolism is an important cause of postoperative morbidity and mortality in bariatric surgery. Studies of direct oral anticoagulants (DOACs) are not available in this surgical field. The objective of this phase 1 clinical trial was to investigate pharmacokinetic and pharmacodynamic (PK/PD) parameters of rivaroxaban in bariatric patients. METHODS: In this single-centre study, obese patients received single oral doses of rivaroxaban (10 mg) one day before and three days after bariatric surgery...
January 25, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28113546/magnetic-particle-imaging-a-resovist-based-marking-technology-for-guide-wires-and-catheters-for-vascular-interventions
#18
Julian Haegele, Sjef Cremers, Jurgen Rahmer, Jochen Franke, Sarah Vaalma, Michael Heidenreich, Joern Borgert, Paul Borm, Joerg Barkhausen, Florian Vogt
Magnetic Particle Imaging (MPI) is able to provide high temporal and good spatial resolution, high signal to noise ratio and sensitivity. Furthermore, it is a truly quantitative method as its signal strength is proportional to the concentration of its tracer, superparamagnetic iron oxide nanoparticles (SPIOs), over a wide range practically relevant concentrations. Thus, MPI is proposed as a promising future method for guidance of vascular interventions. To implement this, devices such as guide wires and catheters have to be discernible in MPI, which can be achieved by coating already commercially available devices with SPIOs...
April 27, 2016: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28107215/metabolic-cardiac-and-renal-effects-of-the-slow-hydrogen-sulfide-releasing-molecule-gyy4137-during-resuscitated-septic-shock-in-swine-with-pre-existing-coronary-artery-disease
#19
Benedikt L Nubaum, Josef Vogt, Ulrich Wachter, Oscar McCook, Martin Wepler, José Matallo, Enrico Calzia, Michael Gröger, Michael Georgieff, Mark E Wood, Matthew Whiteman, Peter Radermacher, Sebastian Hafner
Decreased levels of endogenous hydrogen sulfide (H2S) contribute to atherosclerosis, whereas equivocal data are available on H2S effects during sepsis. Moreover, H2S improved glucose utilization in anaesthetized, ventilated, hypothermic mice, but normothermia and/or sepsis blunted this effect. The metabolic effects of H2S in large animals are controversial. Therefore, we investigated the effects of the H2S donor GYY4137 during resuscitated, fecal peritonitis-induced septic shock in swine with genetically and diet-induced coronary artery disease (CAD)...
January 19, 2017: Shock
https://www.readbyqxmd.com/read/28077513/cognitive-control-structures-in-the-imitation-learning-of-spatial-sequences-and-rhythms-an-fmri-study
#20
Katrin Sakreida, Satomi Higuchi, Cinzia Di Dio, Michael Ziessler, Martine Turgeon, Neil Roberts, Stefan Vogt
Imitation learning involves the acquisition of novel motor patterns based on action observation (AO). We used event-related functional magnetic resonance imaging to study the imitation learning of spatial sequences and rhythms during AO, motor imagery (MI), and imitative execution in nonmusicians and musicians. While both tasks engaged the fronto-parietal mirror circuit, the spatial sequence task recruited posterior parietal and dorsal premotor regions more strongly. The rhythm task involved an additional network for auditory working memory...
January 10, 2017: Cerebral Cortex
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