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https://www.readbyqxmd.com/read/28227691/understanding-the-cochlear-implant-environment-by-mapping-perilymph-proteomes-from-different-species
#1
Jonathan C Palmer, Megan S Lord, Jeremy L Pinyon, Andrew K Wise, Nigel H Lovell, Paul M Carter, Ya Lang Enke, Gary D Housley, Rylie A Green, Jonathan C Palmer, Megan S Lord, Jeremy L Pinyon, Andrew K Wise, Nigel H Lovell, Paul M Carter, Ya Lang Enke, Gary D Housley, Rylie A Green, Ya Lang Enke, Rylie A Green, Jonathan C Palmer, Nigel H Lovell, Paul M Carter, Jeremy L Pinyon, Gary D Housley, Andrew K Wise, Megan S Lord
Cochlear implants operate within a bony channel of the cochlea, bathed in a fluid known as the perilymph. The perilymph is a complex fluid containing ions and proteins, which are known to actively interact with metallic electrodes. To improve our understanding of how cochlear implant performance varies in preclinical in vivo studies in comparison to human trials and patient outcomes, the protein composition (or perilymph proteome) is needed. Samples of perilymph were gathered from feline and guinea pig subjects and analyzed using liquid chromatography with tandem mass spectrometry (LC-MS/MS) to produce proteomes and compare against the recently published human proteome...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227464/the-effect-of-the-aortic-valve-orientation-on-cavitation
#2
Peter Johansen, Brandon R Travis, Morten Smerup, Thomas Decker Christensen, Jonas Funder, Camilla Nyboe, Hans Nygaard, J Michael Hasenkam, Peter Johansen, Brandon R Travis, Morten Smerup, Thomas Decker Christensen, Jonas Funder, Camilla Nyboe, Hans Nygaard, J Michael Hasenkam, Brandon R Travis, Peter Johansen, Hans Nygaard, Morten Smerup, Jonas Funder, Camilla Nyboe, Thomas Decker Christensen, J Michael Hasenkam
When implanting a mechanical aortic valve the annulus orientation is important with respect to turbulence. However, the effect on cavitation has not yet been investigated. The aim of this study was to investigate how cavitation is influenced hereof in vivo. Three pigs were included in the study. An Omnicarbon 21mm valve equipped with a rotating mechanism enabling controlled rotation of the valve was implanted in aortic position. Under stable hemodynamic conditions, measurements were performed using a hydrophone positioned at the aortic root...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227080/a-comparison-between-four-techniques-to-measure-cardiac-output
#3
A Pironet, P C Dauby, J G Chase, P Morimont, N Janssen, B Lambermont, S Davidson, T Desaive, A Pironet, P C Dauby, J G Chase, P Morimont, N Janssen, B Lambermont, S Davidson, T Desaive, T Desaive, B Lambermont, P C Dauby, N Janssen, P Morimont, A Pironet, J G Chase, S Davidson
Cardiac output is an important variable when monitoring hemodynamic status. In particular, changes in cardiac output represent the goal of several circulatory management therapies. Unfortunately, cardiac output is very difficult to estimate, either in experimental or clinical settings. The goal of this work is to compare four techniques to measure cardiac output: pressure-volume catheter, aortic flow probe, thermodilution, and the PiCCO monitor. These four techniques were simultaneously used during experiments of fluid and endotoxin administration on 7 pigs...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226816/neural-representation-of-different-mandarin-tones-in-the-inferior-colliculus-of-the-guinea-pig
#4
Fei Peng, Nan Xia, Xing Wang, Xiao L Zheng, Yi Zhou, Xing Y Fan, Wen S Hou, Fei Peng, Nan Xia, Xing Wang, Xiao L Zheng, Yi Zhou, Xing Y Fan, Wen S Hou, Xing Y Fan, Nan Xia, Wen S Hou, Xing Wang, Yi Zhou, Fei Peng, Xiao L Zheng
Mandarin speech has four different tones and the coding mechanism underlying tone identification still remain unclear. Here in the inferior colliculus (IC) of anesthetized guinea pigs, we recorded single neuron activities to one word with four tones using tungsten electrode. Peri-stimulus time histograms (PSTHs) and inter-spike-interval (ISI) were used to evaluate the neural response. The results showed that PSTHs grouped into frequency band reflected the spectrotemporal patterns of different tones; average population PSTHs matched envelops of different tones; and the peaks of histogram of ISIs in three time segments exhibited a displacement which reflected the profile of fundamental frequency (F0)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226508/temperature-monitoring-during-radiofrequency-ablation-of-liver-in-vivo-trials
#5
P Saccomandi, G Frauenfelder, C Massaroni, M A Caponera, A Polimadei, F Taffoni, F M Di Matteo, G Costamagna, F Giurazza, E Schena, P Saccomandi, G Frauenfelder, C Massaroni, M A Caponera, A Polimadei, F Taffoni, F M Di Matteo, G Costamagna, F Giurazza, E Schena, F Taffoni, F M Di Matteo, F Giurazza, E Schena, G Costamagna, A Polimadei, G Frauenfelder, P Saccomandi, C Massaroni
Radiofrequency ablation (RFA) is a minimally invasive procedure used to treat tumors by means of hyperthermia, mostly through percutaneous approach. The tissue temperature plays a pivotal role in the achievement of the target volume heating, while sparing the surrounding healthy tissue from thermal damage. Several techniques for thermometry during RFA are investigated, most of them based on the use of single-point measurement system (e.g., thermocouples). The measurement of temperature map is crucial for the real-time control and fine adjustment of the treatment settings, to optimize the shape and size of the ablated volume...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226409/effects-of-xylanase-supplementation-on-growth-performance-nutrient-digestibility-blood-parameters-fecal-microbiota-fecal-score-and-fecal-noxious-gas-emission-of-weaning-pigs-fed-corn-soybean-meal-based-diet
#6
Ruixia Lan, Tianshui Li, Inho Kim
This study was conducted to evaluate the effects of xylanase supplementation on nutrient digestibility, growth performance, blood parameters, fecal microflora shedding, fecal score and fecal noxious gas emission of weaning pigs fed corn-soybean meal based diet. A total of 150 weaning pigs with an average initial body weight (BW) of 7.85 ± 0.93 kg were randomly allocated to three treatments based on BW and sex (10 replicate pens with five pigs, two gilts and three barrows) were used in this 42-day trial...
February 22, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28226178/occurrence-characterization-and-antimicrobial-susceptibility-of-salmonella-enterica-in-slaughtered-pigs-in-sardinia
#7
Federica Fois, Francesca Piras, Mia Torpdahl, Roberta Mazza, Simonetta G Consolati, Carlo Spanu, Christian Scarano, Enrico P L De Santis
The aim of this study was to determine Salmonella occurrence in slaughtered finishing pigs and piglets and in slaughterhouse environment in order to characterize the isolates with phenotypical (antimicrobial testing) and molecular (PFGE, MLVA) methods. Nine slaughterhouses located in Sardinia were visited. Six hundred and eight samples collected from 106 pigs and 108 environmental samples were collected and analyzed. Salmonella was isolated in 65 of 504 (12.9%) samples from finishing pigs, with an occurrence of 15...
February 22, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28225865/continuous-blood-purification-treatment-for-endotoxin-induced-acute-respiratory-distress-syndrome
#8
Y Jiang, R Lin, Y Xu, S Zhang, K Cui, M Zhu, A Li, C Chen, J Yang, W Yang
This study aimed to explore the effects of continuous blood purification (CBP) treatment in pigs affected with acute respiratory distress syndrome (ARDS). A total of 12 healthy male pigs, weighing 12±1.8 kg, were randomly and equally assigned to the control and experimental groups. The ARDS pig model was prepared by intravenous injections of endotoxin (20 µg/kg). The control group was given conventional supportive therapy, while the experimental group was given continuous veno-venous hemofiltration therapy...
February 16, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28225810/correction-identification-of-genes-related-to-growth-and-lipid-deposition-from-transcriptome-profiles-of-pig-muscle-tissue
#9
Zhixiu Wang, Qinggang Li, Yangzom Chamba, Bo Zhang, Peng Shang, Hao Zhang, Changxin Wu
[This corrects the article DOI: 10.1371/journal.pone.0141138.].
2017: PloS One
https://www.readbyqxmd.com/read/28225581/effect-of-sonication-duration-and-power-on-ablation-depth-during-mr-guided-focused-ultrasound-of-bone
#10
Matthew D Bucknor, Eugene Ozhinsky, Rutwik Shah, Roland Krug, Viola Rieke
PURPOSE: To evaluate the effect of differences in sonication duration and power on the size of postcontrast ablation zone following magnetic resonance-guided focused ultrasound (MRgFUS) of bone in a swine femoral bone model. MATERIALS AND METHODS: Experimental procedures received approval from the Institutional Committee on Animal Research. MRgFUS was used to create two thermal lesions in the left femur of six pigs. Each target was subjected to six sonications. 400J of energy was used for each sonication...
February 22, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28224725/quisinostat-treatment-improves-histone-acetylation-and-developmental-competence-of-porcine-somatic-cell-nuclear-transfer-embryos
#11
Long Jin, Qing Guo, Hai-Ying Zhu, Xiao-Xu Xing, Guang-Lei Zhang, Mei-Fu Xuan, Qi-Rong Luo, Zhao-Bo Luo, Jun-Xia Wang, Xi-Jun Yin, Jin-Dan Kang
Abnormal epigenetic modifications are considered a main contributing factor to low cloning efficiency. In the present study, we explored the effects of quisinostat, a novel histone deacetylase inhibitor, on blastocyst formation rate in porcine somatic-cell nuclear transfer (SCNT) embryos, on acetylation of histone H3 lysine 9 (AcH3K9), and on expression of POU5F1 protein and apoptosis-related genes BAX and BCL2. Our results showed that treatment with 10 nM quisinostat for 24 h significantly improved the development of reconstructed embryos compared to the untreated group (19...
February 22, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28224116/persistence-of-functional-protein-domains-in-mycoplasma-species-and-their-role-in-host-specificity-and-synthetic-minimal-life
#12
Tjerko Kamminga, Jasper J Koehorst, Paul Vermeij, Simen-Jan Slagman, Vitor A P Martins Dos Santos, Jetta J E Bijlsma, Peter J Schaap
Mycoplasmas are the smallest self-replicating organisms and obligate parasites of a specific vertebrate host. An in-depth analysis of the functional capabilities of mycoplasma species is fundamental to understand how some of simplest forms of life on Earth succeeded in subverting complex hosts with highly sophisticated immune systems. In this study we present a genome-scale comparison, focused on identification of functional protein domains, of 80 publically available mycoplasma genomes which were consistently re-annotated using a standardized annotation pipeline embedded in a semantic framework to keep track of the data provenance...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28223540/akirin2-promotes-slow-myosin-heavy-chain-expression-by-can-nfatc1-signaling-in-porcine-skeletal-muscle-satellite-cells
#13
Xiaoling Chen, Yanliu Luo, Zhiqing Huang, Guangmang Liu, Hua Zhao
The objective of this study was to evaluate the effect of Akirin2 on slow myosin heavy chain (slow MyHC, MyHC I) gene expression and its molecular mechanisms. In this study, we showed that the protein expression of Akirin2 in pig slow oxidative Psoas major muscle is higher than that in fast glycolytic tibialis anterior muscle, suggesting that Akirin2 may play a role in myofiber typing. Knockdown of Akirin2 decreased the MyHC I expression and the calcineurin (CaN) activity, and also decreased the expressions of NFATc1 and MCIP1...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28222769/plasticity-of-host-selection-by-malaria-vectors-of-papua-new-guinea
#14
John B Keven, Lisa Reimer, Michelle Katusele, Gussy Koimbu, Rebecca Vinit, Naomi Vincent, Edward Thomsen, David R Foran, Peter A Zimmerman, Edward D Walker
BACKGROUND: Host selection is an important determinant of vectorial capacity because malaria transmission increases when mosquitoes feed more on humans than non-humans. Host selection also affects the outcome of long-lasting insecticidal nets (LLIN). Despite the recent nationwide implementation of LLIN-based malaria control program in Papua New Guinea (PNG), little is known about the host selection of the local Anopheles vectors. This study investigated the host selection of Anopheles vectors in PNG...
February 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28222270/the-effects-of-pig-manure-application-on-the-spread-of-tetracycline-resistance-in-bulk-and-cucumber-rhizosphere-soils-a-greenhouse-experiment
#15
Yijun Kang, Yangyang Hao, Dan Xia, Min Shen, Qing Li, Jian Hu
Understanding the dynamics of tetracycline-resistant bacteria (TRB) and tetracycline resistance genes (TRGs) in bulk and rhizosphere soils is important to evaluate the spread of TRGs from pig manure to human. In this work, a greenhouse experiment was conducted to investigate the difference in abundance of TRB, tetracycline-resistant E. coli (TRE), tetracycline-resistant Pseudomonas spp. (TRP), as well as TRGs between bulk and cucumber rhizosphere soils. The application of pig manure resulted in the long-term persistence of TRB, TRE, TRP and TRGs in bulk soil and rhizosphere of cucumber for at least 65 days...
February 21, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28221937/food-safety-perceptions-and-practices-among-smallholder-pork-value-chain-actors-in-hung-yen-province-vietnam
#16
Sinh Dang-Xuan, Hung Nguyen-Viet, Tongkorn Meeyam, Reinhard Fries, Huong Nguyen-Thanh, Phuc Pham-Duc, Steven Lam, Delia Grace, Fred Unger
Pork safety is an important public health concern in Vietnam and is a shared responsibility among many actors along the pork value chain. We examined the knowledge, perceptions, and practices regarding food safety, disease, and health risk among selected pork value chain actors (slaughterhouse owners and workers, people living around slaughterhouses, pork sellers, consumers, and veterinary and public health staff) in three districts in Hung Yen Province, Vietnam. We randomly selected 52 pork value chain actors to be surveyed through questionnaires, observation checklists, key informant interviews, and focus group discussions...
September 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221927/characterization-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-isolates-from-pigs-and-farm-workers
#17
Hongna Zhang, Zhenzhen Zhai, Qing Li, Linghong Liu, Shuyuan Guo, Qimeng Li, Lingling Yang, Chaoqun Ye, Weishan Chang, Jing Zhai
Food-producing animals can serve as reservoirs for extended-spectrum β-lactamase (ESBL)-producing Escherichia coli . The present study aimed to characterize and compare ESBL-carrying E. coli isolates from both pigs and farm workers. Rectal swabs were obtained from 60 pigs on four pig-fattening farms (15 samples per farm), and rectal swabs were taken from 40 farm workers on these farms (10 samples per farm). ESBL-carrying E. coli isolates from the workers and pigs were characterized by ESBL genotype, antibiotic susceptibility, enterobacterial repetitive intergenic consensus type, and multilocus sequence type...
September 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221916/characterization-and-antimicrobial-resistance-of-salmonella-typhimurium-isolates-from-clinically-diseased-pigs-in-korea
#18
Sang-Ik Oh, Jong Wan Kim, Myeongju Chae, Ji-A Jung, Byungjae So, Bumseok Kim, Ha-Young Kim
This study investigated the prevalence of Salmonella enterica serovar and antimicrobial resistance in Salmonella Typhimurium isolates from clinically diseased pigs collected from 2008 to 2014 in Korea. Isolates were also characterized according to the presence of antimicrobial resistance genes and pulsed-field gel electrophoresis patterns. Among 94 Salmonella isolates, 81 (86.2%) were identified as being of the Salmonella Typhimurium serotype, followed by Salmonella Derby (6 of 94, 6.4%), Salmonella 4,[5],12:i:- (4 of 94, 4...
November 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221911/molecular-subtyping-and-source-attribution-of-campylobacter-isolated-from-food-animals
#19
Gregory H Tyson, Heather P Tate, Jason Abbott, Thu-Thuy Tran, Claudine Kabera, Emily Crarey, Shenia Young, Patrick F McDERMOTT, Grisselle Sprague, Mark Campbell, Oyewole Adeyemo, Johnette Browne-Silva, Michael Myers, Sutawee Thitaram, Shaohua Zhao
Campylobacter spp. commonly cause gastrointestinal illness in humans. Poultry meats have long been considered the predominant source of these infections, but few in-depth Campylobacter source attribution studies have been completed. We analyzed more than 1,300 Campylobacter isolates recovered from a number of animal and food sources, including dairy and beef cattle, pigs, poultry, and retail poultry meat, and compared them with Campylobacter isolates recovered from human clinical samples. Each isolate was subtyped using pulsed-field gel electrophoresis (PFGE) with SmaI and queried against the Centers for Disease Control and Prevention PulseNet database to identify human isolates with indistinguishable patterns...
November 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221837/environmental-occurrence-and-antibiotic-susceptibility-profile-of-listeria-monocytogenes-at-a-slaughterhouse-raw-processing-plant-in-romania
#20
Claudia Sala, Adriana Morar, Emil Tîrziu, Ileana Nichita, Mirela Imre, Kálmán Imre
This survey was conducted to investigate the occurrence and antimicrobial susceptibility of Listeria monocytogenes isolates in the environment of a pig slaughterhouse raw processing plant complex in western Romania. A total of 97 environmental samples from food contact (n = 60) and nonfood contact (n = 37) surfaces were examined with standard methods. The susceptibility of the isolates to 17 antimicrobial agents was determined with the VITEK 2 automated system. Overall, 25 (25.8%) samples were positive for L...
October 2016: Journal of Food Protection
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