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https://www.readbyqxmd.com/read/28542580/endovascular-stentectomy-using-the-snare-over-stent-retriever-sos-technique-an-experimental-feasibility-study
#1
Tareq Meyer, Omid Nikoubashman, Lisa Kabelitz, Marguerite Müller, Ahmed Othman, Saif Afat, Martin Kramer, Martin Wiesmann, Marc A Brockmann, Carolin Brockmann
Feasibility of endovascular stentectomy using a snare over stent-retriever (SOS) technique was evaluated in a silicon flow model and an in vivo swine model. In vitro, stentectomy of different intracranial stents using the SOS technique was feasible in 22 out of 24 (92%) retrieval maneuvers. In vivo, stentectomy was successful in 10 out of 10 procedures (100%). In one case self-limiting vasospasm was observed angiographically as a technique related complication in the animal model. Endovascular stentectomy using the SOS technique is feasible in an experimental setting and may be transferred to a clinical scenario...
2017: PloS One
https://www.readbyqxmd.com/read/28542478/structural-basis-of-nectin-1-recognition-by-pseudorabies-virus-glycoprotein-d
#2
An Li, Guangwen Lu, Jianxun Qi, Lili Wu, Kegong Tian, Tingrong Luo, Yi Shi, Jinghua Yan, George F Gao
An early and yet indispensable step in the alphaherpesvirus infection is the engagement of host receptors by the viral envelope glycoprotein D (gD). Of the thus-far identified gD receptors, nectin-1 is likely the most effective in terms of its wide usage by multiple alphaherpesviruses for cell entry. The molecular basis of nectin-1 recognition by the gD protein is therefore an interesting scientific question in the alphaherpesvirus field. Previous studies focused on the herpes simplex virus (HSV) of the Simplexvirus genus, for which both the free gD structure and the gD/nectin-1 complex structure were reported at high resolutions...
May 19, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542463/insights-into-reston-virus-spillovers-and-adaption-from-virus-whole-genome-sequences
#3
César G Albariño, Lisa Wiggleton Guerrero, Harley M Jenks, Ayan K Chakrabarti, Thomas G Ksiazek, Pierre E Rollin, Stuart T Nichol
Reston virus (family Filoviridae) is unique among the viruses of the Ebolavirus genus in that it is considered non-pathogenic in humans, in contrast to the other members which are highly virulent. The virus has however, been associated with several outbreaks of highly lethal hemorrhagic fever in non-human primates (NHPs), specifically cynomolgus monkeys (Macaca fascicularis) originating in the Philippines. In addition, Reston virus has been isolated from domestic pigs in the Philippines. To better understand virus spillover events and potential adaption to new hosts, the whole genome sequences of representative Reston virus isolates were obtained using a next generation sequencing (NGS) approach and comparative genomic analysis and virus fitness analyses were performed...
2017: PloS One
https://www.readbyqxmd.com/read/28542321/early-protection-events-in-swine-immunized-with-an-experimental-live-attenuated-classical-swine-fever-marker-vaccine-flagt4g
#4
Lauren G Holinka, Vivian O'Donnell, Guillermo R Risatti, Paul Azzinaro, Jonathan Arzt, Carolina Stenfeldt, Lauro Velazquez-Salinas, Jolene Carlson, Douglas P Gladue, Manuel V Borca
Prophylactic vaccination using live attenuated classical swine fever (CSF) vaccines has been a very effective method to control the disease in endemic regions and during outbreaks in previously disease-free areas. These vaccines confer effective protection against the disease at early times post-vaccination although the mechanisms mediating the protection are poorly characterized. Here we present the events occurring after the administration of our in-house developed live attenuated marker vaccine, FlagT4Gv...
2017: PloS One
https://www.readbyqxmd.com/read/28542235/environmental-persistence-of-porcine-coronaviruses-in-feed-and-feed-ingredients
#5
Michaela P Trudeau, Harsha Verma, Fernando Sampedro, Pedro E Urriola, Gerald C Shurson, Sagar M Goyal
Porcine Epidemic Diarrhea Virus (PEDV), Porcine Delta Corona Virus (PDCoV), and Transmissible Gastroenteritis Virus (TGEV) are major threats to swine health and contaminated feed plays a role in virus transmission. The objective of our study was to characterize inactivation of PEDV, PDCoV, and TGEV in various feed ingredient matrices. Samples of complete feed, spray dried porcine plasma, meat meal, meat and bone meal, blood meal, corn, soybean meal, and corn dried distillers grains with solubles were weighed (5 g/sample) into scintillation vials and inoculated with 1 mL of PEDV, PDCoV, or TGEV...
2017: PloS One
https://www.readbyqxmd.com/read/28542095/magnetization-transfer-magnetic-resonance-imaging-noninvasively-detects-renal-fibrosis-in-swine-atherosclerotic-renal-artery-stenosis-at-3-0-t
#6
Kai Jiang, Christopher M Ferguson, John R Woollard, Xiangyang Zhu, Lilach O Lerman
OBJECTIVES: Renal fibrosis is a useful biomarker for diagnosis and evaluation of therapeutic interventions of renal diseases but often requires invasive testing. Magnetization transfer magnetic resonance imaging (MT-MRI), which evaluates the presence of macromolecules, offers a noninvasive tool to probe renal fibrosis in murine renal artery stenosis (RAS) at 16.4 T. In this study, we aimed to identify appropriate imaging parameters for collagen detection at 3.0 T MRI and to test the utility of MT-MRI in measuring renal fibrosis in a swine model of atherosclerotic RAS (ARAS)...
May 24, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28540805/the-in-vivo-performance-of-a-novel-thermal-accelerant-agent-used-for-augmentation-of-microwave-energy-delivery-within-biologic-tissues-during-image-guided-thermal-ablation-a-porcine-study
#7
William Keun Chan Park, Aaron Wilhelm Palmer Maxwell, Victoria Elizabeth Frank, Michael Patrick Primmer, Jarod Brian Paul, Scott Andrew Collins, Kara Anne Lombardo, Shaolei Lu, Tiffany Marie Borjeson, Grayson Luderman Baird, Damian Edward Dupuy
OBJECTIVES: To investigate the effects of a novel caesium-based thermal accelerant (TA) agent on ablation zone volumes following in vivo microwave ablation of porcine liver and skeletal muscle, and to correlate the effects of TA with target organ perfusion. MATERIALS AND METHODS: This prospective study was performed following institutional animal care and use committee approval. Microwave ablation was performed in liver and resting skeletal muscle in eight Sus scrofa domesticus swine following administration of TA at concentrations of 0 mg/mL (control), 100 mg/mL and 250 mg/mL...
April 24, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540798/pathological-effects-of-lung-radiofrequency-ablation-that-contribute-to-pneumothorax-using-a-porcine-model
#8
Jean Izaaryene, Frederic Cohen, Philippe Souteyrand, Pierre-Henri Rolland, Vincent Vidal, Jean-Michel Bartoli, Veronique Secq, Jean-Yves Gaubert
OBJECTIVES: The incidence of pneumothorax is 7 times higher after lung radiofrequency ablation (RFA) than after lung biopsy. The reasons for such a difference have never been objectified. The histopathologic changes in lung tissue are well-studied and established for RF in the ablation zone. However, it has not been previously described what the nature of thermal injury might be along the shaft of the RF electrode as it traverses through normal lung tissue to reach the ablation zone. The purpose of this study was to determine the changes occurring around the RF needle along the pathway between the ablated zone and the pleura...
April 17, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540569/altered-purinergic-signaling-in-uridine-adenosine-tetraphosphate-induced-coronary-relaxation-in-swine-with-metabolic-derangement
#9
Zhichao Zhou, Oana Sorop, Vincent J de Beer, Ilkka Heinonen, Caroline Cheng, A H Jan Danser, Dirk J Duncker, Daphne Merkus
We previously demonstrated that uridine adenosine tetraphosphate (Up4A) induces potent and partially endothelium-dependent relaxation in the healthy porcine coronary microvasculature. We subsequently showed that Up4A-induced porcine coronary relaxation was impaired via downregulation of P1 receptors after myocardial infarction. In view of the deleterious effect of metabolic derangement on vascular function, we hypothesized that the coronary vasodilator response to Up4A is impaired in metabolic derangement, and that the involvement of purinergic receptor subtypes and endothelium-derived vasoactive factors (EDVFs) is altered...
May 24, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28539564/improvement-of-local-cell-delivery-using-helix-transendocardial-delivery-catheter-in-a-porcine-heart
#10
Yoshiaki Mitsutake, Wook Bum Pyun, Didier Rouy, Cheryl Wong Po Foo, Simon H Stertzer, Peter Altman, Fumiaki Ikeno
Cardiac regeneration strategies using stem cells have shown variable and inconsistent results with respect to patient cardiac function and clinical outcomes. There has been increasing consensus that improving the efficiency of delivery may improve results. The Helix transendocardial delivery system (BioCardia Inc.) has been developed to enable percutaneous transendocardial biotherapeutic delivery. Therefore, we evaluated cell retention using this unique system compared with direct transepicardial injection and intracoronary infusion in an animal model...
May 23, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28538705/uk-pigs-at-the-time-of-slaughter-investigation-into-the-correlation-of-infection-with-prrsv-and-hev
#11
Jean-Pierre Frossard, Sylvia Grierson, Tanya Cheney, Falko Steinbach, Bhudipa Choudhury, Susanna Williamson
Hepatitis E virus (HEV) and porcine reproductive and respiratory syndrome virus (PRRSV) and are both globally prevalent in the pig population. While HEV does not cause clinical disease in pigs, its zoonotic potential has raised concerns in the food safety sector. PRRS has become endemic in the United Kingdom (UK) since its introduction in 1991, and continues to cause considerable economic losses to the swine industry. A better understanding of the current prevalence and diversity of PRRSV and HEV in the UK, and their potential association, is needed to assess risks and target control measures appropriately...
May 24, 2017: Viruses
https://www.readbyqxmd.com/read/28538623/impact-of-a-novel-pi3-kinase-inhibitor-in-preventing-mitochondrial-dna-damage-and-damage-associated-molecular-pattern-accumulation-results-from-the-biochronicity-project
#12
George E Black, Kyle K Sokol, Donald M Moe, Jon Simmons, David Muscat, Victor Pastukh, Gina Capley, Olena Gorodnya, Mykhalo Ruchko, Mark B Roth, Mark Gillespie, Matthew J Martin
BACKGROUND: Despite improvements in the management of severely injured patients, development of multiple organ dysfunction syndrome (MODS) remains a morbid complication of traumatic shock. One of the key attributes of MODS is a profound bioenergetics crisis, for which the mediators and mechanisms are poorly understood. We hypothesized that metabolic uncoupling using an experimental PI3-kinase inhibitor, LY294002 (LY), may prevent mitochondrial abnormalities that lead to the generation of mitochondrial DNA (mtDNA) damage and the release of mtDNA damage associated molecular patterns (DAMPs) METHODS: 16 swine were studied using LY294002 (LY), a non-selective PI3-KI: Animals were assigned to Trauma only (TO, N=3); LY drug only (LYO, N=3); and Experimental (N=10), trauma + drug (LY+T) groups...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28534993/analysis-of-the-cdr3-length-repertoire-and-the-diversity-of-t-cell-receptor-%C3%AE-and-%C3%AE-chains-in-swine-cd4-and-cd8-t-lymphocytes
#13
Chun-Yan Wang, Yong-Xiang Fang, Guo-Hua Chen, Huai-Jie Jia, Shuang Zeng, Xiao-Bing He, Yuan Feng, Shou-Jie Li, Qi-Wang Jin, Wen-Yu Cheng, Zhi-Zhong Jing
The T cell receptor (TCR) is a complex heterodimer that recognizes fragments of antigens as peptides and binds to major histocompatibility complex molecules. The TCR α and β chains possess three hypervariable regions termed complementarity determining regions (CDR1, 2 and 3). CDR3 is responsible for recognizing processed antigen peptides. Immunoscope spectratyping is a simple technique for analyzing CDR3 polymorphisms and sequence length diversity, in order to investigate T cell function and the pattern of TCR utilization...
May 18, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534229/production-of-a-gonadotropin-releasing-hormone-2-receptor-knockdown-gnrhr2-kd-swine-line
#14
A T Desaulniers, R A Cederberg, G A Mills, C A Lents, B R White
Swine are the only livestock species that produce both the second mammalian isoform of gonadotropin-releasing hormone (GNRH2) and its receptor (GNRHR2). Previously, we reported that GNRH2 and GNRHR2 mediate LH-independent testosterone secretion from porcine testes. To further explore this ligand-receptor complex, a pig model with reduced GNRHR2 expression was developed. Small hairpin RNA sequences targeting porcine GNRHR2 were subcloned into a lentiviral-based vector, lentiviral particles were generated and microinjected into the perivitelline space of zygotes, and embryos were transferred into a recipient...
May 22, 2017: Transgenic Research
https://www.readbyqxmd.com/read/28533108/hyaluronidase-administered-with-xylazine-tiletamine-zolazepam-into-adipose-tissue-shortens-recovery-from-anesthesia-in-pigs
#15
Shayne P Bisetto, Adriano B Carregaro, André E S Nicolai, Thais F Bressan, William P Leal, Nathalia V Xavier, Diego F Leal, André F C Andrade
OBJECTIVE: To evaluate the effect of hyaluronidase on uptake, duration and speed of elimination of xylazine-tiletamine-zolazepam administered in the subcutaneous fat over the dorsal lumbar region of swine. STUDY DESIGN: Blinded, randomized, crossover study. ANIMALS: Six healthy Landrace/Large White pigs weighing 132±24 kg (mean±standard deviation). METHODS: Animals were administered xylazine (1 mg kg(-1)) and tiletamine-zolazepam (8 mg kg(-1)) (control treatment, CON), or xylazine-tiletamine-zolazepam at the same doses with hyaluronidase (400 IU) (treatment HYA)...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28532801/dissemination-of-erm-b-and-its-associated-multidrug-resistance-genomic-islands-in-campylobacter-from-2013-to-2015
#16
Dejun Liu, Fengru Deng, Yanan Gao, Hong Yao, Zhangqi Shen, Congming Wu, Yang Wang, Jianzhong Shen
A total of 1372 Campylobacter isolates (1107 Campylobacter coli and 265 Campylobacter jejuni) were obtained from 3462 samples collected from slaughterhouses and farms in three representative regions of China (Shandong, Guangdong, and Shanghai) over three successive years (2013-2015). Of these, 84 (84/1372, 6.1%) were erm(B)-positive, and all 84 positive isolates were identified as C. coli (83 chicken isolates and one swine isolate). The prevalence of erm(B) in Campylobacter isolates was compared amongst the different regions and between the three years investigated...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28532792/preparation-for-emergence-of-an-eastern-european-porcine-reproductive-and-respiratory-syndrome-virus-prrsv-strain-in-western-europe-immunization-with-modified-live-virus-vaccines-or-a-field-strain-confers-partial-protection
#17
P Renson, C Fablet, M Le Dimna, S Mahé, F Touzain, Y Blanchard, F Paboeuf, N Rose, O Bourry
The porcine reproductive and respiratory syndrome virus (PRRSV) causes huge economic losses for the swine industry worldwide. In the past several years, highly pathogenic strains that lead to even greater losses have emerged. For the Western European swine industry, one threat is the possible introduction of Eastern European PRRSV strains (example Lena genotype 1.3) which were shown to be more virulent than common Western resident strains under experimental conditions. To prepare for the possible emergence of this strain in Western Europe, we immunized piglets with a Western European PRRSV field strain (Finistere: Fini, genotype 1...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28532789/recombination-in-jxa1-r-vaccine-and-nadc30-like-strain-of-porcine-reproductive-and-respiratory-syndrome-viruses
#18
Jiankui Liu, Xia Zhou, Junqiong Zhai, Chunhua Wei, Ailing Dai, Xiaoyan Yang, Manlin Luo
Porcine reproductive and respiratory syndrome (PRRS) is considered one of the most devastating swine diseases worldwide, resulting in immense economic losses. PRRS virus (PRRSV) has undergone rapid evolution since its first recognition in 1990s. In the present study, a PRRSV strain named FJXS15 causing high morbidity and mortality was isolated from piglets and sows from a farm participating in vaccination in China. Phylogenetic and molecular evolutionary analyses revealed that FJXS15 was highly similar to the JXA1-R vaccine strain (a live attenuated virus vaccine strain derived from the highly pathogenic PRRSV JXA1) in the ORF1a (nt 901-)-ORF4 (-nt 419) coding regions, as well as to FJZ03 (lineage 1, NADC30-like) in the 5'-UTR, ORF5a-ORF7 coding regions, and 3'-UTR, suggestive of a natural recombination event...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28528879/functional-annotation-and-analysis-of-the-ornithodoros-moubata-midgut-genes-differentially-expressed-after-blood-feeding
#19
Ana Oleaga, Prosper Obolo-Mvoulouga, Raúl Manzano-Román, Ricardo Pérez-Sánchez
The argasid tick Ornithodoros moubata is the main vector of the African swine fever and the human relapsing fever in Africa. As part of the host-parasite-pathogen interface, the tick midgut expresses key proteins for tick survival and tick-borne pathogen transmission. Accordingly, midgut proteins are potential targets for the development of new drugs and vaccines aimed at tick control, and obtaining proteomic and transcriptomic data from the O. moubata midgut would facilitate the identification of such target candidates...
May 13, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28528009/identification-of-novel-haemophilus-parasuis-serovar-5-vaccine-candidates-using-an-immunoproteomic-approach
#20
Gang Li, Fang Xie, Jianjun Li, Jiao Liu, Dapeng Li, Yanhe Zhang, Paul R Langford, Yanwen Li, Siguo Liu, Chunlai Wang
Haemophilus parasuis is the aetiological agent of Glässer's disease, which is responsible for cases of fibrinous polyserositis, polyarthritis and meningitis. No vaccine is known that provides cross-protection against all serovars. The identification of novel immunoprotective antigens would undoubtedly contribute to the development of efficient subunit vaccines. In the present study, an immunoproteomic approach was used to analyze secreted proteins of H. parasuis and six proteins with high immunogenicity were identified...
May 17, 2017: Journal of Proteomics
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