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https://www.readbyqxmd.com/read/27914202/probiotic-roles-of-lactobacillus-spp-in-swine-insights-from-gut-microbiota
#1
REVIEW
Valerie Diane V Valeriano, Marilen P Balolong, Dae-Kyung Kang
The use of lactobacilli as probiotics in swine has been gaining attention due to their ability to improve growth performance and carcass quality, prevent gastrointestinal infection, and most importantly, their 'generally recognised as safe' status. Previous studies support the potential of lactobacilli to regulate host immune systems, enhance gut metabolic capacities, and maintain balance in the gut microbiota. Research on swine gut microbiota has revealed complex gut microbial community structure and showed the importance of Lactobacillus to the host's health...
December 3, 2016: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/27912183/relationships-between-sulfachloropyridazine-sodium-zinc-and-sulfonamide-resistance-genes-during-the-anaerobic-digestion-of-swine-manure
#2
Ranran Zhang, Jie Gu, Xiaojuan Wang, Xun Qian, Manli Duan, Wei Sun, Yajun Zhang, Haichao Li, Yang Li
In this study, swine manure containing sulfachloropyridazine sodium (SCPS) and zinc was subjected to mesophilic (37°C) anaerobic digestion (AD). The absolute abundances (AAs) of antibiotic resistance genes (ARGs) were evaluated, as well as intI1 and intI2, and the degradation of SCPS according to variation in the amount of bio-available zinc (bio-Zn). In digester that only contained SCPS, the concentrations of SCPS were lower than that digesters both contain SCPS and Zn. Compared with the control digester, the addition of SCPS increased the AAs of sul1, sul3, drfA1, and drfA7 by 1...
October 21, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27911040/retrospective-study-evaluating-seroprevalence-of-hepatitis-e-virus-in-blood-donors-and-in-swine-veterinarians-in-italy-2004
#3
L De Sabato, I Di Bartolo, E Montomoli, C Trombetta, F M Ruggeri, F Ostanello
Hepatitis E is an emerging viral disease in developed countries, with sporadic cases occasionally linked to the consumption of raw or undercooked pork, wild boar or deer meat. Cases due to transfusion or transplantation have also been reported. In developed countries, hepatitis E is considered a zoonosis and pig is the main reservoir. In the last few years, several studies conducted in Europe reported variable seroprevalence rates among the general population, ranging between 0.26% and 52.5%. A higher seroprevalence was described among workers who come in contact with pigs...
December 2, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/27911030/acellular-endocardium-as-a-novel-biomaterial-for-the-intima-of-tissue-engineered-small-caliber-vascular-grafts
#4
Feng Wang, Xin Guan, TianYi Wu, JianOu Qiao, ZhaoQing Han, JinLong Wu, XiaoWei Yu, QingJun You
We aimed to investigate whether acellular endocardium can be used as a useful biomaterial for the intima of engineered small-caliber vascular grafts. Fresh endocardium was harvested from the swine left atrium and was decellularized by digestion with the decellularization solution of Triton X-100 and SDS containing DNase I and RNase A. Surface morphological characteristics and Young's modulus were evaluated. To analyze the effect of mechanical characteristics on cell adhesion, the decellularized endocardium was stiffened with 2...
December 2016: Artificial Organs
https://www.readbyqxmd.com/read/27909230/the-protective-role-of-sex-hormones-in-females-and-exercise-prehabilitation-in-males-on-sternotomy-induced-cranial-hypoperfusion-in-aortic-banded-mini-swine
#5
T Dylan Olver, Jessica A Hiemstra, Jenna C Edwards, Brian S Ferguson, Harold Laughlin, Craig A Emter
During cardiac surgery, specifically sternotomy, cranial hypoperfusion is linked to cerebral ischemia, increased risk of perioperative watershed stroke and other neurocognitive complications. The purpose of this study was to retrospectively examine the effect of sex hormones in females and exercise prehabilitation in males on median sternotomy-induced changes in cranial perfusion in a large animal model of heart failure. Cranial blood flow (CBF) before, 10- and 60 min post-sternotomy was analyzed in eight groups of Yucatan mini-swine: female-control, aortic-banded, ovariectomized, and ovariectomized+aortic-banded; male-control, aortic-banded, aortic-banded+continuous exercise trained, and aortic-banded+interval exercise trained...
December 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27908827/different-routes-and-doses-influence-protection-in-pigs-immunised-with-the-naturally-attenuated-african-swine-fever-virus-isolate-ourt88-3
#6
Pedro J Sánchez-Cordón, Dave Chapman, Tamara Jabbar, Ana L Reis, Lynnette Goatley, Christopher L Netherton, Geraldine Taylor, Maria Montoya, Linda Dixon
This study compares different combinations of doses and routes of immunisation of pigs with low virulent African swine fever virus (ASFV) genotype I isolate OURT88/3, including the intramuscular and intranasal route, the latter not previously tested. Intranasal immunisations with low and moderate doses (10(3) and 10(4) TCID50) of OURT88/3 provided complete protection (100%) against challenge with virulent genotype I OURT88/1 isolate. Only mild and transient clinical reactions were observed in protected pigs...
November 28, 2016: Antiviral Research
https://www.readbyqxmd.com/read/27908351/pim1-kinase-overexpression-enhances-ckit-cardiac-stem-cell-cardiac-repair-following-myocardial-infarction-in-swine
#7
Shathiyah Kulandavelu, Vasileios Karantalis, Julia Fritsch, Konstantinos E Hatzistergos, Viky Y Loescher, Frederic McCall, Bo Wang, Luiza Bagno, Samuel Golpanian, Ariel Wolf, Justin Grenet, Adam Williams, Aaron Kupin, Aaron Rosenfeld, Sadia Mohsin, Mark A Sussman, Azorides Morales, Wayne Balkan, Joshua M Hare
BACKGROUND: Pim1 kinase plays an important role in cell division, survival, and commitment of precursor cells towards a myocardial lineage, and overexpression of Pim1 in ckit(+) cardiac stem cells (CSCs) enhances their cardioreparative properties. OBJECTIVES: The authors sought to validate the effect of Pim1-modified CSCs in a translationally relevant large animal preclinical model of myocardial infarction (MI). METHODS: Human cardiac stem cells (hCSCs, n = 10), hckit(+) CSCs overexpressing Pim1 (Pim1(+); n = 9), or placebo (n = 10) were delivered by intramyocardial injection to immunosuppressed Yorkshire swine (n = 29) 2 weeks after MI...
December 6, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27907102/an-investigation-into-the-etiological-agents-of-swine-dysentery-in-australian-pig-herds
#8
Tom La, Nyree D Phillips, David J Hampson
Swine dysentery (SD) is a mucohemorrhagic colitis, classically seen in grower/finisher pigs and caused by infection with the anaerobic intestinal spirochete Brachyspira hyodysenteriae. More recently, however, the newly described species Brachyspira hampsonii and Brachyspira suanatina have been identified as causing SD in North America and/or Europe. Furthermore, there have been occasions where strains of B. hyodysenteriae have been recovered from healthy pigs, including in multiplier herds with high health status...
2016: PloS One
https://www.readbyqxmd.com/read/27906869/early-and-sustained-vasopressin-infusion-augments-the-hemodynamic-efficacy-of-restrictive-fluid-resuscitation-and-improves-survival-in-a-liver-laceration-model-of-hemorrhagic-shock
#9
Raúl J Gazmuri, Kasen Whitehouse, Kruti Shah, Karla Whittinghill, Alvin Baetiong, Jeejabai Radhakrishnan
BACKGROUND: Current management of hemorrhagic shock favors restrictive fluid resuscitation before control of the bleeding source. We investigated the additional effects of early and sustained vasopressin infusion in a swine model of hemorrhagic shock produced by liver laceration. METHODS: Forty male domestic pigs (32 to 40 kg) had a liver laceration inflicted with an X-shaped blade clamp, 32 received a second laceration at minute 7.5, and 24 received two additional lacerations at minute 15...
November 30, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27905550/deep-sequencing-of-transcriptome-profiling-of-gstm2-knock-down-in-swine-testis-cells
#10
Yuqi Lv, Yi Jin, Yongqiang Zhou, Jianjun Jin, Zhenfa Ma, Zhuqing Ren
Glutathione-S-transferases mu 2 (GSTM2), a kind of important Phase II antioxidant enzyme of eukaryotes, is degraded by nonsense mediated mRNA decay due to a C27T substitution in the fifth exon of pigs. As a reproductive performance-related gene, GSTM2 is involved in embryo implantation, whereas, functional deficiency of GSTM2 induces pre- or post-natal death in piglets potentially. To have some insight into the role of GSTM2 in embryo development, high throughput RNA sequencing is performed using the swine testis cells (ST) with the deletion of GSTM2...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905502/immune-responsiveness-of-cd4-t-cells-during-streptococcus-suis-serotype-2-infection
#11
Marie-Pier Lecours, Corinne Letendre, Damian Clarke, Paul Lemire, Tristan Galbas, Marie-Odile Benoit-Biancamano, Jacques Thibodeau, Marcelo Gottschalk, Mariela Segura
The pathogenesis of Streptococcus suis infection, a major swine and human pathogen, is only partially understood and knowledge on the host adaptive immune response is critically scarce. Yet, S. suis virulence factors, particularly its capsular polysaccharide (CPS), enable this bacterium to modulate dendritic cell (DC) functions and potentially impair the immune response. This study aimed to evaluate modulation of T cell activation during S. suis infection and the role of DCs in this response. S. suis-stimulated total mouse splenocytes readily produced TNF-α, IL-6, IFN-γ, CCL3, CXCL9, and IL-10...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27904915/studies-using-a-porcine-model-what-insights-into-human-calcium-oxalate-stone-formation-mechanisms-has-this-model-facilitated
#12
REVIEW
Kristina L Penniston, Sutchin R Patel, Denise J Schwahn, Stephen Y Nakada
Animal models are useful in the study of many human diseases. Our current understanding of the biological, physiological, and biochemical aspects of hyperoxaluria and calcium oxalate urolithiasis has been greatly informed by studies using animals. Recently, limitations in the extrapolation to humans of research results derived from laboratory rodents have been identified. The use in biomedical research of a variety of organisms, including large animals, is increasingly encouraged. The purpose of this article is to review the use of pigs in biomedical and stone research, to provide a rationale for using pigs in metabolic stone research, and to describe our 8-year experience in developing a porcine platform for studying hyperoxaluria and calcium oxalate urolithiasis...
November 30, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27903273/a-novel-quantitative-real-time-polymerase-chain-reaction-method-for-detecting-toxigenic-pasteurella-multocida-in-nasal-swabs-from-swine
#13
Simone Scherrer, Daniel Frei, Max Michael Wittenbrink
BACKGROUND: Progressive atrophic rhinitis (PAR) in pigs is caused by toxigenic Pasteurella multocida. In Switzerland, PAR is monitored by selective culture of nasal swabs and subsequent polymerase chain reaction (PCR) screening of bacterial colonies for the P. multocida toxA gene. A panel of 203 nasal swabs from a recent PAR outbreak were used to evaluate a novel quantitative real-time PCR for toxigenic P. multocida in porcine nasal swabs. RESULTS: In comparison to the conventional PCR with a limit of detection of 100 genome equivalents per PCR reaction, the real-time PCR had a limit of detection of 10 genome equivalents...
December 1, 2016: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/27902762/presenting-influenza-a-m2e-antigen-on-recombinant-spores-of-bacillus-subtilis
#14
Tomasz Łęga, Paulina Weiher, Michał Obuchowski, Dawid Nidzworski
Effective vaccination against influenza virus infection is a serious problem mainly due to antigenic variability of the virus. Among many of investigated antigens, the extracellular domain of the M2 protein (M2e) features high homology in all strains of influenza A viruses and antibodies against M2e and is protective in animal models; this makes it a potential candidate for generation of a universal influenza vaccine. However, due to the low immunogenicity of the M2e, formulation of a vaccine based on this antigen requires some modification to induce effective immune responses...
2016: PloS One
https://www.readbyqxmd.com/read/27902630/blood-pressure-reduction-after-renal-denervation-in-obese-hypertensive-swine-model
#15
Masayuki Tanemoto
No abstract text is available yet for this article.
January 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/27902420/interleukin-1-receptor-antagonist-il-1ra-an-early-immunomodulatory-cytokine-induced-by-porcine-reproductive-and-respiratory-syndrome-virus-prrsv
#16
Teerawut Nedumpun, Piya Wongyanin, Chaitawat Sirisereewan, Patcharee Ritprajuk, Tanapat Palaga, Roongroje Thanawongnuwech, Sanipa Suradhat
Porcine reproductive and respiratory syndrome virus (PRRSV) infection poorly induces pro-inflammatory cytokines (IL-1, IL-6, TNF-α) and type I IFN production during the early phase of infection. Our microarray analysis indicated strong upregulation of the IL1RA gene in type 2 PRRSV infected monocyte-derived dendritic cells (MoDC). Interleukin-1 receptor antagonist (IL-1Ra) is an early inhibitory cytokine, which suppresses pro-inflammatory cytokines and T lymphocyte responses. To investigate the induction of IL-1Ra by PRRSV, MoDC were cultured with type 2 PRRSV or other swine viruses...
November 23, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27902360/high-genetic-diversity-of-species-a-rotaviruses-detected-in-swine-farms-in-chile
#17
Hernan Canon Jones, Hernan Cortes, Aldo Gaggero, Jorge Levican, Mario Castillo-Ruiz, Trinidad Schlotterbeck, Ricardo San Martin
Rotavirus A is one of the main causative agents of diarrhea in lactating and weaned pigs worldwide. Its impact in the swine industry is well documented. However, in Chile the current epidemiological status of rotavirus in porcine farms is unknown. This study evaluated the current epidemiologic status of rotavirus A infection in Chile using on-farm detection technique, electrophoretic confirmation, genotyping and phylogenetic clustering by analysis of partial sequences of VP4 and VP7 genes. Rotavirus A was detected in 4 out of 5 farms with an overall prevalence of 17,7% in diarrheic pigs...
November 18, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27902357/pathogenesis-of-senecavirus-a-infection-in-finishing-pigs
#18
Lok R Joshi, Maureen H V Fernandes, Travis Clement, Steven Lawson, Angela Pillatzki, Talita P Resende, Fabio Vanucci, Gerald F Kutish, Eric Nelson, Diego G Diel
Senecavirus A (SVA) is an emerging picornavirus that has been recently associated with vesicular disease and neonatal mortality in swine. Many aspects of SVA infection biology and pathogenesis, however, remain unknown. Here the pathogenesis of SVA was investigated in finishing pigs. Animals were inoculated via the oronasal route with a contemporary SVA strain SD15-26 and monitored for clinical signs and lesions associated with SVA infection. Viremia was assessed in serum and virus shedding monitored in oral and nasal secretions and feces by real-time reverse transcriptase PCR (RT-qPCR) and/or virus isolation...
October 14, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27899330/mr-visible-localization-device-for-radiographic-pathologic-correlation-of-surgical-specimens
#19
Sonja Kinner, Tilman B Schubert, Elisabetta A Nocerino, Shannon Hynes, Timothy J Colgan, Agnes G Loeffler, Christopher Brace, Scott B Reeder, Emily Winslow
PURPOSE: The detection of small parenchymal hepatic lesions identified by preoperative imaging remains a challenge for traditional pathologic methods in large specimens. We developed a magnetic resonance imaging (MRI) compatible localization device for imaging of surgical specimens aimed to improve identification and localization of hepatic lesions ex vivo. MATERIALS AND METHODS: The device consists of two stationary and one removable MR-visible grids lined with silicone gel, creating an orthogonal 3D matrix for lesion localization...
November 26, 2016: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/27899159/p53-signaling-modulation-of-cell-cycle-arrest-and-viral-replication-in-porcine-circovirus-type-2-infection-cells
#20
Dan Xu, Qian Du, Cong Han, Zengguo Wang, Xiujuan Zhang, Tongtong Wang, Xiaomin Zhao, Yong Huang, Dewen Tong
Porcine circovirus type 2 (PCV2) is a ubiquitous pathogen in the swine industry worldwide. Previous studies have shown that PCV2 infection induces host cell apoptosis through up-regulation of p53. To further identify the regulatory roles of p53 signaling in the process of PCV2 infection, we established p53 gene knockout PK15 cell lines using the genomic editor tool CRISPR/Cas9, and further investigated the roles of p53 in modulating the cell cycle and viral replication in this study. The results show that PCV2 infection induced obvious S phase accumulation in wild-type PK15 cells and a compromised S phase accumulation in the p53 gene mutation cells (813PK15 (p53m/m) ), but did not induce obvious S phase accumulation in the p53 gene knockout cells (148PK15 (p53-/-)) compared with the respective mock infection...
November 29, 2016: Veterinary Research
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