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https://www.readbyqxmd.com/read/28382726/improved-dark-blood-late-gadolinium-enhancement-db-lge-imaging-using-an-optimized-joint-inversion-preparation-and-t2-magnetization-preparation
#1
Tamer A Basha, Maxine C Tang, Connie Tsao, Cory M Tschabrunn, Elad Anter, Warren J Manning, Reza Nezafat
PURPOSE: To develop a dark blood-late gadolinium enhancement (DB-LGE) sequence that improves scar-blood contrast and delineation of scar region. METHODS: The DB-LGE sequence uses an inversion pulse followed by T2 magnetization preparation to suppress blood and normal myocardium. Time delays inserted after preparation pulses and T2 -magnetization-prep duration are used to adjust tissue contrast. Selection of these parameters was optimized using numerical simulations and phantom experiments...
April 5, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28370375/radiofrequency-heating-studies-on-anesthetized-swine-using-fractionated-dipole-antennas-at-10-5-t
#2
Yiğitcan Eryaman, Russell L Lagore, M Arcan Ertürk, Lynn Utecht, Patrick Zhang, Angel Torrado-Carvajal, Esra Abaci Türk, Lance DelaBarre, Gregory J Metzger, Gregor Adriany, Kâmil Uğurbil, J Thomas Vaughan
PURPOSE: To validate electromagnetic and thermal simulations with in vivo temperature measurements, and to demonstrate a framework that can be used to predict temperature increase caused by radiofrequency (RF) excitation with dipole transmitter arrays. METHODS: Dipole arrays were used to deliver RF energy in the back/neck region of the swine using different RF excitation patterns (n = 2-4 per swine) for heating. The temperature in anesthetized swine (n = 3) was measured using fluoroscopic probes (n = 12) and compared against thermal modeling from animal-specific electromagnetic simulations...
March 31, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28342176/investigating-the-physiological-effects-of-10-5-tesla-static-field-exposure-on-anesthetized-swine
#3
Yigitcan Eryaman, Patrick Zhang, Lynn Utecht, Kivanc Kose, Russell L Lagore, Lance DelaBarre, Jeramy Kulesa, Lynn E Eberly, Gregor Adriany, Tinen L Iles, Paul A Iaizzo, J Thomas Vaughan, Kamil Ugurbil
PURPOSE: In this work, we investigated the relative effects of static magnetic field exposure (10.5 Tesla [T]) on two physiological parameters; blood pressure (BP) and heart rate (HR). METHODS: In vivo, we recorded both BP and HR in 4 swine (3 female, 1 male) while they were positioned within a 10.5T magnet. All measurements were performed invasively within these anesthetized animals by the placement of pressure catheters into their carotid arteries. RESULTS: We measured average increases of 2...
March 25, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28319826/oil-based-adjuvants-delivered-intradermally-induce-high-primary-igg2-immune-response-in-swine
#4
Zrinka Oreskovic, Hana Kudlackova, Josef Krejci, Katerina Nechvatalova, Martin Faldyna
The effects of intradermal application of antigen with or without different adjuvants and activation of immune response are presented in this study. Six groups of six piglets each were immunized with keyhole limpet haemocyanin (KLH) antigen in combination with aluminium hydroxide or oil-based adjuvants (complete and incomplete Freund's adjuvants, Montanide ISA 206 and Emulsigen). IgG1 and IgG2 levels in sera were measured by KLH-specific ELISA. Interestingly, oil-based adjuvants induced high primary IgG2 response, suggesting the Th1 lymphocyte polarization...
March 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28287510/adsc-sheet-transplantation-to-prevent-stricture-after-extended-esophageal-endoscopic-submucosal-dissection
#5
Guillaume Perrod, Laetitia Pidial, Sophie Camilleri, Alexandre Bellucci, Amaury Casanova, Thomas Viel, Bertrand Tavitian, Chirstophe Cellier, Olivier Clément, Gabriel Rahmi
In past years, the cell-sheet construct has spurred wide interest in regenerative medicine, especially for reconstructive surgery procedures. The development of diversified technologies combining adipose tissue-derived stromal cells (ADSCs) with various biomaterials has led to the construction of numerous types of tissue-engineered substitutes, such as bone, cartilage, and adipose tissues from rodent, porcine, or human ADSCs. Extended esophageal endoscopic submucosal dissection (ESD) is responsible for esophageal stricture formation...
February 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28249582/characteristics-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-isolated-from-fecal-samples-of-piglets-with-diarrhea-in-central-and-southern-taiwan-in-2015
#6
Wan-Chen Lee, Kuang-Sheng Yeh
BACKGROUND: The production of extended-spectrum β-lactamases (ESBLs) confer resistance to the commonly used beta-lactam antimicrobials and ESBL-producing bacteria render treatment difficulty in human and veterinary medicine. ESBL-producing bacteria have emerged in livestock in recent years, which may raise concerns regarding possible transfer of such bacteria through the food chain. The swine industry is important in Taiwan, but investigations regarding the status of ESBL in swine are limited...
March 1, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28191775/noninvasive-assessment-of-an-engineered-bioactive-graft-in-myocardial-infarction-impact-on-cardiac-function-and-scar-healing
#7
Carolina Gálvez-Montón, Ramon Bragós, Carolina Soler-Botija, Idoia Díaz-Güemes, Cristina Prat-Vidal, Verónica Crisóstomo, Francisco M Sánchez-Margallo, Aida Llucià-Valldeperas, Paco Bogónez-Franco, Isaac Perea-Gil, Santiago Roura, Antoni Bayes-Genis
Cardiac tissue engineering, which combines cells and biomaterials, is promising for limiting the sequelae of myocardial infarction (MI). We assessed myocardial function and scar evolution after implanting an engineered bioactive impedance graft (EBIG) in a swine MI model. The EBIG comprises a scaffold of decellularized human pericardium, green fluorescent protein-labeled porcine adipose tissue-derived progenitor cells (pATPCs), and a customized-design electrical impedance spectroscopy (EIS) monitoring system...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28150535/molecular-and-antimicrobial-susceptibility-characterization-of-globicatella-sulfidifaciens-isolated-from-sow-s-urinary-tract-infection
#8
Carlos E C Matajira, Luisa Z Moreno, Vasco T M Gomes, Ana Paula S Silva, Renan E Mesquita, Cristina R Amigo, Ana Paula G Christ, Maria Inês Z Sato, Andrea M Moreno
BACKGROUND: The Globicatella genus comprises Gram-positive, facultative anaerobic, α-hemolytic and catalase negative cocci morphologically and phenotypically very similar to Streptococcus and Aerococcus genus which can lead to misidentification and underestimation of this pathogen. Globicatella species have already been isolated from human and animals with heart and brain disorders. Their clinical relevance in animals, and its zoonotic potential, remains unknown due to the difficulty in their identification...
December 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28081156/generation-of-a-stable-transgenic-swine-model-expressing-a-porcine-histone-2b-egfp-fusion-protein-for-cell-tracking-and-chromosome-dynamics-studies
#9
Renan B Sper, Sehwon Koh, Xia Zhang, Sean Simpson, Bruce Collins, Jeff Sommer, Robert M Petters, Ignacio Caballero, Jeff L Platt, Jorge A Piedrahita
Transgenic pigs have become an attractive research model in the field of translational research, regenerative medicine, and stem cell therapy due to their anatomic, genetic and physiological similarities with humans. The development of fluorescent proteins as molecular tags has allowed investigators to track cell migration and engraftment levels after transplantation. Here we describe the development of two transgenic pig models via SCNT expressing a fusion protein composed of eGFP and porcine Histone 2B (pH2B)...
2017: PloS One
https://www.readbyqxmd.com/read/28076681/computational-modeling-of-neurotransmitter-release-evoked-by-electrical-stimulation-nonlinear-approaches-to-predicting-stimulation-evoked-dopamine-release
#10
James K Trevathan, Ali Yousefi, Hyung Ook Park, John J Bartoletta, Kip A Ludwig, Kendall H Lee, J Luis Lujan
Neurochemical changes evoked by electrical stimulation of the nervous system have been linked to both therapeutic and undesired effects of neuromodulation therapies used to treat obsessive-compulsive disorder, depression, epilepsy, Parkinson's disease, stroke, hypertension, tinnitus, and many other indications. In fact, interest in better understanding the role of neurochemical signaling in neuromodulation therapies has been a focus of recent government- and industry-sponsored programs whose ultimate goal is to usher in an era of personalized medicine by creating neuromodulation therapies that respond to real-time changes in patient status...
February 15, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28070330/the-approximated-cardiovascular-reserve-index-complies-with-haemorrhage-related-hemodynamic-deterioration-pattern-a-swine-exsanguination-model
#11
Roy Nadler, Elon Glassberg, Itay E Gabbay, Linn Wagnert-Avraham, Gal Yaniv, David Kushnir, Arik Eisenkraft, Ben-Zion Bobrovsky, Uri Gabbay
BACKGROUND: To estimate the cardiovascular reserve we formulated the Cardiovascular Reserve Index (CVRI) based on physiological measurements. The aim of this study was to evaluate the pattern of CVRI in haemorrhage-related haemodynamic deterioration in an animal model simulating combat injury. METHODS: Data were collected retrospectively from a research database of swine exsanguination model in which serial physiological measurements were made under anesthesia in 12 swine of haemorrhagic injury and 5 controls...
February 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28069290/classical-swine-fever-vaccines-state-of-the-art
#12
Sandra Blome, Claudia Moß, Ilona Reimann, Patricia König, Martin Beer
Due to its impact on animal health and pig industry, classical swine fever (CSF) is still one of the most important viral diseases of pigs. To control the disease, safe and highly efficacious live attenuated vaccines exist for decades. These vaccines have usually outstanding efficacy and safety but lack differentiability of infected from vaccinated animals (DIVA or marker strategy). In contrast, the first generation of E2 subunit marker vaccines shows constraints in efficacy, application, and production. To overcome these limitations, new generations of marker vaccines are developed...
January 3, 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28026174/comprehensive-analysis-of-tiamulin-metabolites-in-various-species-of-farm-animals-using-ultra-high-performance-liquid-chromatography-coupled-to-quadrupole-time-of-flight
#13
Feifei Sun, Shupeng Yang, Huiyan Zhang, Jinhui Zhou, Yi Li, Jinzhen Zhang, Yue Jin, Zhanhui Wang, Yanshen Li, Jianzhong Shen, Suxia Zhang, Xingyuan Cao
Tiamulin is an antimicrobial widely used in veterinary practice to treat dysentery and pneumonia in pigs and poultry. However, knowledge about the metabolism of tiamulin is very limited in farm animals. To better understand the biotransformation of tiamulin, in the present study, in vitro and in vivo metabolites of tiamulin in rats, chickens, swine, goats, and cows were identified and elucidated using ultra-high performance liquid chromatography coupled to quadrupole/time-of-flight. As a result, a total of 26 metabolites of tiamulin, identified in vitro and in vivo, and majority of metabolites were revealed for the first time...
January 11, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27939149/kinetics-of-maternally-derived-antibodies-upon-intramuscular-vaccination-against-classical-swine-fever-with-suvaxyn-%C3%A2-csf-marker-cp7_e2alf
#14
Charlotte Schröder, Carolin Dräger, Andrea Aebischer, Lisa Dähnert, Christiane Breidenstein, Svenja Mamerow, Simone Leidenberger, Martin Beer, Sandra Blome
Classical swine fever (CSF) remains one of the most important viral diseases that impact on sustainable pig production world wide. To control the disease in either endemic situations or in case of large, high-impact contingencies, safe and highly efficacious live attenuated vaccines exist since decades. However, until recently, the available live vaccines did not allow a serological marker concept that would be important to circumvent long-term trade restrictions. Recently, a new live attenuated marker vaccine, Suvaxyn(®) CSF Marker (Zoetis), was licensed by the European Medicines Agency (EMA)...
November 30, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27927254/informal-networks-in-disaster-medicine
#15
Fadl Bdeir, John W Crawford, Liaquat Hossain
OBJECTIVE: Our study of informal networks aimed to explore information-sharing environments for the management of disaster medicine and public health preparedness. Understanding interagency coordination in preparing for and responding to extreme events such as disease outbreaks is central to reducing risks and coordination costs. METHODS: We evaluated the pattern of information flow for actors involved in disaster medicine through social network analysis. Social network analysis of agencies can serve as a basis for the effective design and reconstruction of disaster medicine response coordination structures...
December 8, 2016: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/27925870/hydrogen-sulfide-enhances-pancreatic-%C3%AE-cell-differentiation-from-human-tooth-under-normal-and-glucotoxic-conditions
#16
Ioan Valentin Matei, Hisataka Ii, Ken Yaegaki
AIM: Glucotoxicity obstructs pancreatic differentiation from adult stem cells. The aim was to develop a novel protocol for differentiation of dental pulp stem cells (DPSCs) into pancreatic β cells and determine the effect of H2S on glucotoxicity. MATERIALS & METHODS: DPSCs were differentiated with media containing 5.5 or 25.0 mM glucose, exposed to 1 ng/ml H2S. Glucotoxicity, expression of β-cell markers, INS, PDX1 and GLUT2, and PI3K/AKT pathway were assessed...
December 7, 2016: Regenerative Medicine
https://www.readbyqxmd.com/read/27891118/colistin-in-pig-production-chemistry-mechanism-of-antibacterial-action-microbial-resistance-emergence-and-one-health-perspectives
#17
REVIEW
Mohamed Rhouma, Francis Beaudry, William Thériault, Ann Letellier
Colistin (Polymyxin E) is one of the few cationic antimicrobial peptides commercialized in both human and veterinary medicine. For several years now, colistin has been considered the last line of defense against infections caused by multidrug-resistant Gram-negative such as Acinetobacter baumannii, Pseudomonas aeruginosa, and Klebsiella pneumoniae. Colistin has been extensively used orally since the 1960s in food animals and particularly in swine for the control of Enterobacteriaceae infections. However, with the recent discovery of plasmid-mediated colistin resistance encoded by the mcr-1 gene and the higher prevalence of samples harboring this gene in animal isolates compared to other origins, livestock has been singled out as the principal reservoir for colistin resistance amplification and spread...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27873166/a-dangerous-hobby-erysipelothrix-rhusiopathiae-bacteremia-most-probably-acquired-from-freshwater-aquarium-fish-handling
#18
E Asimaki, O Nolte, G Overesch, C Strahm
Erysipelothrix rhusiopathiae is a facultative anaerobic Gram-positive rod that occurs widely in nature and is best known in veterinary medicine for causing swine erysipelas. In humans, infections are rare and mainly considered as occupationally acquired zoonosis. A case of E. rhusiopathiae bacteremia most likely associated with home freshwater aquarium handling is reported. The route of transmission was probably a cut with the dorsal fin of a dead pet fish. A short review of clinical presentations, therapeutic considerations and pitfalls of E...
November 21, 2016: Infection
https://www.readbyqxmd.com/read/27770469/toward-imaging-the-body-at-10-5-tesla
#19
M Arcan Ertürk, Xiaoping Wu, Yiğitcan Eryaman, Pierre-François Van de Moortele, Edward J Auerbach, Russell L Lagore, Lance DelaBarre, J Thomas Vaughan, Kâmil Uğurbil, Gregor Adriany, Gregory J Metzger
PURPOSE: To explore the potential of performing body imaging at 10.5 Tesla (T) compared with 7.0T through evaluating the transmit/receive performance of similarly configured dipole antenna arrays. METHODS: Fractionated dipole antenna elements for 10.5T body imaging were designed and evaluated using numerical simulations. Transmit performance of antenna arrays inside the prostate, kidneys and heart were investigated and compared with those at 7.0T using both phase-only radiofrequency (RF) shimming and multi-spoke pulses...
January 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27738916/use-of-antibiotics-and-antimicrobial-resistance-in-veterinary-medicine-as-exemplified-by-the-swine-pathogen-streptococcus-suis
#20
Maren Seitz, Peter Valentin-Weigand, Jörg Willenborg
Use of antimicrobial agents in veterinary medicine is essential to control infectious diseases, thereby keeping animals healthy and animal products safe for the consumer. On the other hand, development and spread of antimicrobial resistance is of major concern for public health. Streptococcus (S.) suis reflects a typical bacterial pathogen in modern swine production due to its facultative pathogenic nature and wide spread in the pig population. Thus, in the present review we focus on certain current aspects and problems related to antimicrobial use and resistance in S...
2016: Current Topics in Microbiology and Immunology
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