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https://www.readbyqxmd.com/read/28110374/morphological-description-of-limbal-epithelium-searching-for-stem-cells-crypts-in-the-dog-cat-pig-cow-sheep-and-horse
#1
M Patruno, A Perazzi, T Martinello, A Blaseotto, E Di Iorio, I Iacopetti
The cornea provides protection and transparency to the eye, allowing an optimal sharpness view. In some pathological conditions the cornea is able to regenerate thanks to the presence of a stem cells reservoir present at the level of the transition area between cornea and sclera (limbus). Corneal cell therapies in Veterinary Medicine are really limited due to the lacking of knowledge about the anatomy of the limbal area, the putative presence of stem cells and their identification in domestic species. The aim of this study was to provide an overview of the main distinctive structural features of the sclero-corneal junction and conjunctival-corneal junction areas in some species of veterinary importance, using optic microscope observations of histological sections...
January 21, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/28109773/exploring-polyvinylpyrrolidone-in-the-engineering-of-large-porous-plga-microparticles-via-single-emulsion-method-with-tunable-sustained-release-in-the-lung-in-vitro-and-in-vivo-characterization
#2
Rui Ni, Uwe Muenster, Jing Zhao, Lan Zhang, Eva-Maria Becker-Pelster, Martin Rosenbruch, Shirui Mao
Sustained pulmonary drug delivery is regarded as an effective strategy for local treatment of chronic lung diseases. Despite of the progress made so far, there remains a need for respirable drug loaded porous microparticles, where porosity of the microparticles can be readily engineered during the preparation process, with tunable sustained drug release upon lung deposition. In this work, polyvinyl pyrrolidone (PVP) was used as a novel porogen to engineer PLGA-based large porous particles (LPPs) using single emulsion method, with fine tuning of the porosity, sustained drug release both in vitro and in vivo...
January 18, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28109261/genetic-diversity-extent-of-linkage-disequilibrium-and-persistence-of-gametic-phase-in-canadian-pigs
#3
Daniela A Grossi, Mohsen Jafarikia, Luiz F Brito, Marcos E Buzanskas, Mehdi Sargolzaei, Flávio S Schenkel
BACKGROUND: Knowledge on the levels of linkage disequilibrium (LD) across the genome, persistence of gametic phase between breed pairs, genetic diversity and population structure are important parameters for the successful implementation of genomic selection. Therefore, the objectives of this study were to investigate these parameters in order to assess the feasibility of a multi-herd and multi-breed training population for genomic selection in important purebred and crossbred pig populations in Canada...
January 21, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28109183/chloride-ion-transport-and-overexpression-of-tmem16a-in-a-guinea-pig-asthma-model
#4
Mitsuko Kondo, Mayoko Tsuji, Kaori Hara, Ken Arimura, Osamitsu Yagi, Etsuko Tagaya, Kiyoshi Takeyama, Jun Tamaoki
BACKGROUND: TMEM16A, a Ca-activated Cl channel, regulates various physiological functions such as mucin secretion. However, the role of TMEM16A in hypersecretion in asthma is not fully understood. OBJECTIVE: The aim of this study is to evaluate Cl ion transport via TMEM16A and determine the localization of TMEM16A in a guinea pig asthma model. METHODS: Guinea pigs were sensitized with OVA ip. on Day 1 and Day 8. On Day 22, we assessed OVA challenge-induced Cl ion transport in the sensitized tracheas ex vivo in an Ussing chamber, compared with the non-sensitized tracheas...
January 21, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28108862/effects-of-chromium-methionine-supplementation-with-different-sources-of-zinc-on-growth-performance-carcass-traits-meat-quality-serum-metabolites-endocrine-parameters-and-the-antioxidant-status-in-growing-finishing-pigs
#5
Xiao Xu, Li Liu, Shen-Fei Long, Xiang-Shu Piao, Terry L Ward, Fei Ji
This experiment was conducted to evaluate the effects of chromium methionine with/without zinc sulfate or zinc amino acid complex on the growth performance, carcass traits, meat quality, serum parameters, endocrine parameters, and antioxidant status of growing-finishing pigs. A total of 180 (32.0 ± 1.7 kg body weight, BW) crossbred pigs (Duroc × Landrace × Yorkshire) were used in a completely randomized design with three dietary treatments and 10 replicates per treatment (five pens of barrows and five pens of gilts with six pigs per replicate)...
January 21, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28107999/determination-of-sulfonamides-in-animal-tissues-by-modified-quechers-and-liquid-chromatography-tandem-mass-spectrometry
#6
Ching-Hsuan Wen, Shu-Ling Lin, Ming-Ren Fuh
In this study, the salting-out solvent extraction and dispersive solid-phase extraction (dSPE) clean-up steps in QuEChERS (quick, easy, cheap, effective, rugged, and safe) method were optimized to reduce matrix effect and efficiently extract target sulfonamides from a variety of edible animal tissues. The extracted sulfonamides were then analyzed using liquid chromatography tandem mass spectrometry (LC-MS/MS). Good extraction recoveries (74.0-100.3% in five different sources of animal tissues; n=3) with acceptable matrix effect (<10%, except for liver samples) were obtained using the proposed method...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28107883/batch-medication-of-intestinal-infections-in-nursery-pigs-a-randomised-clinical-trial-on-the-efficacy-of-treatment-strategy-type-of-antibiotic-and-bacterial-load-on-average-daily-weight-gain
#7
Nicolai Rosager Weber, Ken Steen Pedersen, Christian Fink Hansen, Matthew Denwood, Charlotte Kristiane Hjulsager, Jens Peter Nielsen
INTRODUCTION: Previous research projects have demonstrated the need for better diagnostic tools to support decisions on medication strategies for infections caused by Escherichia coli F4 (F4) and F18 (F18), Lawsonia intracellularis (LI) and Brachyspira pilosicoli (PILO). This study was carried out as a randomised clinical trial in three Danish pig herds and included 1047 nursery pigs, distributed over 10 batches and 78 pens. The objectives of this study were: (1) to assess the effect of four 5-day treatment strategies (initiated at clinical outbreak of diarrhoea or at fixed time points 14, 21, or 28days after weaning) on average daily weight gain (ADG); (2) to compare the effect of treatment with doxycycline or tylosine on diarrhoea prevalence, pathogenic bacterial load, and ADG; (3) to evaluate PCR testing of faecal pen floor samples as a diagnostic tool for determining the optimal time of treatment...
February 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28107878/effect-of-strategic-administration-of-an-encapsulated-blend-of-formic-acid-citric-acid-and-essential-oils-on-salmonella-carriage-seroprevalence-and-growth-of-finishing-pigs
#8
Kavita Walia, Hector Argüello, Helen Lynch, Finola C Leonard, Jim Grant, Dermot Yearsley, Sinead Kelly, Geraldine Duffy, Gillian E Gardiner, Peadar G Lawlor
Controlling Salmonella at farm level can act as the first line of defence in reducing salmonellosis from pork. This study investigated the efficacy of an encapsulated blend of formic acid, citric acid, and essential oils (FormaXOL™) administered to finisher pigs for 28days prior to slaughter in controlling Salmonella shedding on a commercial farm with a history of high Salmonella seroprevalence. Fourteen pens of 8-10 pigs/pen were randomly assigned to a control (finisher diet without additive) or a treatment group (the same diet with 4kg/t of FormaXOL™) for 28 days...
February 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28107818/multiple-trait-structured-antedependence-model-to-study-the-relationship-between-litter-size-and-birth-weight-in-pigs-and-rabbits
#9
Ingrid David, Hervé Garreau, Elodie Balmisse, Yvon Billon, Laurianne Canario
BACKGROUND: Some genetic studies need to take into account correlations between traits that are repeatedly measured over time. Multiple-trait random regression models are commonly used to analyze repeated traits but suffer from several major drawbacks. In the present study, we developed a multiple-trait extension of the structured antedependence model (SAD) to overcome this issue and validated its usefulness by modeling the association between litter size (LS) and average birth weight (ABW) over parities in pigs and rabbits...
January 20, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28107762/thulium-laser-in-interventional-endoscopy-animal-and-human-studies
#10
Gian E Tontini, Helmut Neumann, Luca Pastorelli, Luisa Spina, Flaminia Cavallaro, Paola Soriani, Alessandro Rimondi, Barbara Bruni, Claudio Clemente, Filippo Fagnani, Pavlos Lagoussis, Luca Carmignani, Maurizio Vecchi
Background and study aims The thulium laser system (TLS) is an emerging surgical tool. The 2-μm wavelength provides a confined coagulation depth (0.2 - 0.4 mm) to reduce the potential for inadvertent injuries. For the first time ever, we assessed TLS feasibility for endoscopic hemostasis ex vivo in pigs. In addition, we performed the first in vivo hemostatic treatments in humans. Patients and methods Tissue damage induced by TLS using different settings and optical fibers was compared to that from argon plasma coagulation (APC) in established ex vivo animal models...
January 20, 2017: Endoscopy
https://www.readbyqxmd.com/read/28107700/comparative-pharmacokinetics-of-eight-major-bioactive-components-in-normal-and-bacterial-diarrhea-mini-pigs-after-oral-administration-of-gegen-qinlian-decoction
#11
Xiao Ling, Yuqiang Xiang, Qingfa Tang, Feilong Chen, Xiaomei Tan
Healthy animals are most widely used in current pharmacokinetic(PK) studies. However, neglecting the effects of specific diseases on drug absorption results in the PK parameters of those experiments not accurately reflecting in vivo drug concentration changes during treatment. In this study, an E. coli infective diarrheal minipig model was applied to explore the pharmacokinetics of Gegen Qinlian decoction (GQD). A simple and rapid ultrahigh performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method was developed to determine the concentrations of the eight GQD components in minipig plasma after intragastric administration of GQD...
January 11, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28107664/safety-and-efficacy-of-cardiopoietic-stem-cells-in-the-treatment-of-post-infarction-left-ventricular-dysfunction-from-cardioprotection-to-functional-repair-in-a-translational-pig-infarction-model
#12
Maximilian Y Emmert, Petra Wolint, Andras Jakab, Sean P Sheehy, Francesco S Pasqualini, Thi Dan Linh Nguyen, Monika Hilbe, Burkhardt Seifert, Benedikt Weber, Chad E Brokopp, Dominika Macejovska, Etem Caliskan, Arnold von Eckardstein, Ruth Schwartlander, Viola Vogel, Volkmar Falk, Kevin Kit Parker, Mariann Gyöngyösi, Simon P Hoerstrup
To date, clinical success of cardiac cell-therapies remains limited. To enhance the cardioreparative properties of stem cells, the concept of lineage-specification through cardiopoietic-guidance has been recently suggested. However, so far, only results from murine studies and from a clinical pilot-trial in chronic heart-failure (CHF) are available, while systematic evidence of its therapeutic-efficacy is still lacking. Importantly, also no data from large animals or for other indications are available. Therefore, we here investigate the therapeutic-efficacy of human cardiopoietic stem cells in the treatment of post-infarction LV-dysfunction using a translational pig-model...
November 23, 2016: Biomaterials
https://www.readbyqxmd.com/read/28107659/high-frequency-oscillations-and-seizure-like-discharges-in-the-entorhinal-cortex-of-the-in-vitro-isolated-guinea-pig-brain
#13
Laura Uva, Davide Boido, Massimo Avoli, Marco de Curtis, Maxime Lévesque
We analyzed the patterns of seizure-like activity and associated high-frequency oscillations (HFOs) induced by the K(+) channel blocker 4-aminopyridine (4AP, 50μM) or the GABAA receptor antagonist bicuculline methiodide (BMI, 50μM) in the in vitro isolated guinea pig brain preparation. Extracellular field recordings were obtained from the medial entorhinal cortex (EC) using glass pipettes or silicon probes; 4AP or BMI were applied through the basilar artery. Ripples (80-200Hz) or fast ripples (250-500Hz) occurred at higher rates shortly before ictal events induced by 4AP or BMI, respectively...
January 6, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28107461/inhibition-of-fatty-acid-synthase-reduces-blastocyst-hatching-through-regulation-of-the-akt-pathway-in-pigs
#14
Jing Guo, Nam-Hyung Kim, Xiang-Shun Cui
Fatty acid synthase (FASN) is an enzyme responsible for the de novo synthesis of long-chain fatty acids. During oncogenesis, FASN plays a role in growth and survival rather than acting within the energy storage pathways. Here, the function of FASN during early embryonic development was studied using its specific inhibitor, C75. We found that the presence of the inhibitor reduced blastocyst hatching. FASN inhibition decreased Cpt1 expression, leading to a reduction in mitochondria numbers and ATP content. This inhibition of FASN resulted in the down-regulation of the AKT pathway, thereby triggering apoptosis through the activation of the p53 pathway...
2017: PloS One
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
#15
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/28106802/effects-of-the-truck-suspension-system-on-animal-welfare-carcass-and-meat-quality-traits-in-pigs
#16
Filipe Antônio Dalla Costa, Letícia S Lopes, Osmar Antônio Dalla Costa
The objective of this study was to assess the effects of two types of commercial suspension (leaf-spring (LS) vs. air suspension (AS)) installed on two similar double-decked trucks on blood cortisol and lactate concentration, lairage behavior, carcass skin lesions and pork quality traits of 120 crossbred pigs. The suspension type neither influenced pig behaviour in lairage nor blood cortisol and lactate concentrations (p > 0.10). However, when compared with the AS suspension system, the use of LS increased the number of skin lesions in the back and thigh (p = 0...
January 18, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28106759/sex-specific-muscular-maturation-responses-following-prenatal-exposure-to-methylation-related-micronutrients-in-pigs
#17
Michael Oster, Nares Trakooljul, Henry Reyer, Annette Zeyner, Eduard Muráni, Siriluck Ponsuksili, Klaus Wimmers
Supplementation of micronutrients involved in DNA methylation, particularly during pregnancy, is recommended because of its impacts on human health, but further evidence is needed regarding the effects of over-supplementation and differences between sexes. Here, a porcine model was used to assess effects of maternal supplementation with one-carbon-cycle compounds during prenatal and postnatal stages on offspring muscle development. Sows received either a standard diet (CON) or a standard diet supplemented with folate, B6, B12, methionine, choline, and zinc (MET) throughout gestation...
January 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28106145/cd1-and-cd1-porcine-blood-dendritic-cells-are-enriched-for-the-orthologues-of-the-two-major-mammalian-conventional-subsets
#18
Jane C Edwards, Helen E Everett, Miriam Pedrera, Helen Mokhtar, Emanuele Marchi, Ferran Soldevila, Daryan A Kaveh, Philip J Hogarth, Helen L Johns, Javier Nunez-Garcia, Falko Steinbach, Helen R Crooke, Simon P Graham
Conventional dendritic cells (cDC) are professional antigen-presenting cells that induce immune activation or tolerance. Two functionally specialised populations, termed cDC1 and cDC2, have been described in humans, mice, ruminants and recently in pigs. Pigs are an important biomedical model species and a key source of animal protein; therefore further understanding of their immune system will help underpin the development of disease prevention strategies. To characterise cDC populations in porcine blood, DC were enriched from PBMC by CD14 depletion and CD172a enrichment then stained with lineage mAbs (Lin; CD3, CD8α, CD14 and CD21) and mAbs specific for CD172a, CD1 and CD4...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28104658/draft-genome-sequence-of-hypervirulent-and-vaccine-candidate-streptococcus-suis-strain-sc19
#19
Lin Teng, Xingxing Dong, Yang Zhou, Zhiwei Li, Limei Deng, Huanchun Chen, Xiaohong Wang, Jinquan Li
Streptococcus suis, a zoonotic bacterium found primarily in pigs, has been recognized recently as an emerging pathogen of humans. Herein, we describe the genome of Streptococcus suis strain SC19, a hypervirulent and vaccine candidate strain isolated from a pig amid the 2005 outbreak in China.
January 19, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28104449/acute-neurologic-disease-in-porcine-rubulavirus-experimentally-infected-piglets
#20
Jenifer Herrera, Luis Gómez-Núñez, Rocío Lara-Romero, Fernando Diosdado, Atalo Martínez-Lara, Miguel Jasso, Humberto Ramírez-Mendoza, Armando Pérez-Torres, José Francisco Rivera-Benítez
The objective of this study was to evaluate the clinical disease, humoral response and viral distribution of recent Porcine rubulavirus (PorPV) isolates in experimentally infected pigs. Four, 6-piglet (5-days old) groups were employed (G1-84, G2-93, G3-147, and G4-T). Three viral strains were used for the experimental infection: the reference strain LPMV-1984 (Michoacán 1984) and two other strains isolated in 2013, one in Queretaro (Qro/93/2013) and the other in Michoacán (Mich/147/2013). Each strain was genetically characterized by amplification and sequencing of the gene encoding hemagglutinin-neuroamidase (HN)...
January 16, 2017: Virus Research
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