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https://www.readbyqxmd.com/read/28933987/rna-seq-analysis-provide-new-insights-into-mapk-signaling-of-apolipoproteinciii-induced-inflammation-in-porcine-vascular-endothelial-cells
#1
Yuan Yue, Hao Jiang, Shouqing Yan, Yao Fu, Chang Liu, Xulei Sun, Menglong Chai, Yan Gao, Bao Yuan, Chengzhen Chen, Lisheng Dai, Jiabao Zhang, Yu Ding
Apolipoprotein CIII (ApoCIII) has been shown to be associated with the inflammatory response, but the mechanism of its inflammatory effects remains unclear. Because vascular endothelial cells (VECs) play a key role in the development of inflammation, the present study was performed to investigate inflammatory mechanisms induced by ApoCIII in VECs. In this study, we screened differentially expressed genes (DEGs) using RNA-sequencing. The results identified 390 up-regulated genes and 257 down-regulated genes...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28933982/function-and-regulation-mechanism-of-chk1-during-meiotic-maturation-in-porcine-oocytes
#2
Zheng-Wen Nie, Li Chen, Qiu-Shi Jin, Ying-Ying Gao, Tao Wang, Xia Zhang, Yi-Liang Miao
Checkpoint 1 (Chk1), as an important member of DNA replication checkpoint and DNA damage response, has an important role during the G2/M stage of mitosis. In this study, we used porcine oocyte as a model to investigate the function of Chk1 during porcine oocyte maturation. Chk1 was expressed from germinal vesicle (GV) to metaphase II (MII) stages, mainly localized in the cytoplasm at GV stage and moved to the spindle after germinal vesicle breakdown (GVBD). Chk1 depletion not only induced oocytes to be arrested at MI stage with abnormal chromosomes arrangement, but also inhibited the degradation of Cyclin B1 and decreased the expression of Mitotic Arrest Deficient 2-Like 1 (Mad2L1), one of spindle assembly checkpoint (SAC) proteins, and cadherin 1 (Cdh1), one of coactivation for anaphase-promoting complex/cyclosome (APC/C)...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28933754/the-positive-correlation-of-the-enhanced-immune-response-to-pcv2-subunit-vaccine-by-conjugation-of-chitosan-oligosaccharide-with-the-deacetylation-degree
#3
Guiqiang Zhang, Gong Cheng, Peiyuan Jia, Siming Jiao, Cui Feng, Tao Hu, Hongtao Liu, Yuguang Du
Chitosan oligosaccharides (COS), the degraded products of chitosan, have been demonstrated to have versatile biological functions. In primary studies, it has displayed significant adjuvant effects when mixed with other vaccines. In this study, chitosan oligosaccharides with different deacetylation degrees were prepared and conjugated to porcine circovirus type 2 (PCV2) subunit vaccine to enhance its immunogenicity. The vaccine conjugates were designed by the covalent linkage of COSs to PCV2 molecules and administered to BALB/c mice three times at two-week intervals...
July 26, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28933737/perspectives-on-the-evolution-of-porcine-parvovirus
#4
Woo-Taek Oh, Ri-Yeon Kim, Van-Giap Nguyen, Hee-Chun Chung, Bong-Kyun Park
Porcine parvovirus (PPV) is one of the main causes of porcine reproductive failure. It is important for swine industries to understand the recent trends in PPV evolution. Previous data show that PPV has two genetic lineages originating in Germany. In this study, two more genetic lineages were defined, one of which was distinctly Asian. Additionally, amino acid substitutions in European strains and Asian strains showed distinct differences in several regions of the VP2 gene. The VP1 gene of the recent PPV isolate (T142_South Korea) was identical to that of Kresse strain isolated in the USA in 1985, indicating that modern PPV strains now resemble the original strains (Kresse and NADL-2)...
July 26, 2017: Viruses
https://www.readbyqxmd.com/read/28933628/effectiveness-of-different-molecular-forms-of-c-histolyticum-class-i-collagenase-to-recover-islets
#5
Michael L Green, Andrew G Breite, Caleb A Beechler, Francis E Dwulet, Robert C McCarthy
One factor that may contribute to variability between different lots of purified collagenase to recover islets is the molecular form of C. histolyticum class I (C1) collagenase used in the isolation procedure. Two different enzyme mixtures containing C1, class II (C2) collagenase and BP Protease were compared for their effectiveness to recover islets from split adult porcine pancreas. The same enzyme activities per g trimmed tissue were used for all isolations with the only difference being the mass of C1 required to achieve 25,000 collagen degradation activity U/g tissue...
September 21, 2017: Islets
https://www.readbyqxmd.com/read/28933593/dynein-promotes-porcine-oocyte-meiotic-progression-by-maintaining-cytoskeletal-structures-and-cortical-granule-arrangement
#6
Yilong Miao, Changyin Zhou, Zhaokang Cui, Liansheng Tang, Xiayan ShiYang, Yajuan Lu, Mianqun Zhang, Xiaoxin Dai, Bo Xiong
Cytoplasmic dynein is a family of cytoskeletal motor proteins that move towards the minus-end of the microtubules to perform functions in a variety of mitotic processes such as cargo transport, organelle positioning, chromosome movement and centrosome assembly. However, its specific roles during mammalian oocyte meiosis have not been fully defined. Herein, we investigated the critical events during porcine oocyte meiotic maturation after inhibition of dynein by Ciliobrevin D treatment. We found that oocyte meiotic progression was arrested when inhibited of dynein by showing the poor expansion of cumulus cells and decreased rate of polar body extrusion...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28933217/implantation-of-brain-derived-extracellular-matrix-enhances-neurological-recovery-after-traumatic-brain-injury
#7
Yun Wu, Jiayin Wang, Yejie Shi, Hongjian Pu, Rehana K Leak, Anthony K F Liou, Stephen F Badylak, Zhixiong Liu, Jun Zhang, Jun Chen, Ling Chen
Scaffolds composed of extracellular matrix (ECM) are being investigated for their ability to facilitate brain tissue remodeling and repair following injury. The present study tested the hypothesis that the implantation of brain-derived ECM would attenuate experimental traumatic brain injury (TBI) and explored potential underlying mechanisms. TBI was induced in mice by a controlled cortical impact (CCI). ECM was isolated from normal porcine brain tissue by decellularization methods, prepared as a hydrogel, and injected into the ipsilesional corpus callosum and striatum 1 h after CCI...
July 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28932941/single-center-ventral-hernia-repair-with-porcine-dermis-collagen-implant
#8
M Boules, A T Strong, R Corcelles, I N Haskins, R Ilie, C Wathen, D Froylich, G Sharma, J Rodriguez, S Rosenblatt, K El-Hayek, M Kroh
INTRODUCTION: This study aims to evaluate the outcomes and utilization of porcine acellular dermal collagen implant (PADCI) during VHR at a large tertiary referral center. METHODS: Records of 5485 patients who underwent VIHR from June 1995 to August 2014 were retrospectively reviewed to identify patients >18 years of age who had VIHR with PADCI reinforcement. Use of multiple mesh reinforcement products, inguinal hernias, and hiatal hernias were exclusion criteria...
September 20, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28932815/a-multicenter-study-to-evaluate-the-performance-of-high-throughput-sequencing-for-virus-detection
#9
Arifa S Khan, Siemon H S Ng, Olivier Vandeputte, Aisha Aljanahi, Avisek Deyati, Jean-Pol Cassart, Robert L Charlebois, Lanyn P Taliaferro
The capability of high-throughput sequencing (HTS) for detection of known and unknown viruses makes it a powerful tool for broad microbial investigations, such as evaluation of novel cell substrates that may be used for the development of new biological products. However, like any new assay, regulatory applications of HTS need method standardization. Therefore, our three laboratories initiated a study to evaluate performance of HTS for potential detection of viral adventitious agents by spiking model viruses in different cellular matrices to mimic putative materials for manufacturing of biologics...
September 2017: MSphere
https://www.readbyqxmd.com/read/28932650/gene-editing-gene-therapy-and-cell-xenotransplantation-cell-transplantation-across-species
#10
REVIEW
Nizar I Mourad, Pierre Gianello
PURPOSE OF REVIEW: Cell xenotransplantation has the potential to provide a safe, ethically acceptable, unlimited source for cell replacement therapies. This review focuses on genetic modification strategies aimed to overcome remaining hurdles standing in the way of clinical porcine islet transplantation and to develop neural cell xenotransplantation. RECENT FINDINGS: In addition to previously described genetic modifications aimed to mitigate hyperacute rejection, instant blood-mediated inflammatory reaction, and cell-mediated rejection, new data showing the possibility of increasing porcine islet insulin secretion by transgenesis is an interesting addition to the array of genetically modified pigs available for xenotransplantation...
2017: Current Transplantation Reports
https://www.readbyqxmd.com/read/28932564/assessment-of-pulmonary-microstructural-changes-by-hyperpolarized-129-xe-diffusion-weighted-imaging-in-an-elastase-instilled-rat-model-of-emphysema
#11
Ke Wang, Ting Pan, Hao Yang, Weiwei Ruan, Jianping Zhong, Guangyao Wu, Xin Zhou
BACKGROUND: The purpose of this study was to explore the feasibility of hyperpolarized (129)Xe diffusion-weighted imaging (DWI) for the evaluation of pulmonary microstructural changes in the presence of pancreatic porcine elastase (PPE)-induced pulmonary emphysema rat model. METHODS: Sixteen male Sprague-Dawley (SD) rats were randomly divided into two groups, the emphysema model group and control group. Experimental emphysematous models were made by instilling elastase into rat lungs of model group, the control group were instilled with isodose saline...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28932412/survival-of-porcine-epidemic-diarrhea-virus-pedv-in-thermally-treated-feed-ingredients-and-on-surfaces
#12
Michaela P Trudeau, Harsha Verma, Pedro E Urriola, Fernando Sampedro, Gerald C Shurson, Sagar M Goyal
BACKGROUND: Infection with Porcine Epidemic Diarrhea Virus (PEDV) causes vomiting, diarrhea, and dehydration in young pigs. The virus made its first appearance in the U.S. in 2013, where it caused substantial neonatal mortality and economic losses in the U.S. pork industry. Based on outbreak investigations, it is hypothesized that the virus could be transmitted through contaminated feed or contaminated feed surfaces. This potential risk created a demand for research on the inactivation kinetics of PEDV in different environments...
2017: Porcine Health Management
https://www.readbyqxmd.com/read/28931557/protective-effect-of-cyanidin-3-o-glucoside-on-neonatal-porcine-islets
#13
Chao Li, Bin Yang, Zhihao Xu, Eric Boivin, Mazzen Black, Wenlong Huang, Baoyou Xu, Ping Wu, Bo Zhang, Xian Li, Kunsong Chen, Yulian Wu, Gina Rayat
Oxidative stress is a major cause of islet injury and dysfunction during isolation and transplantation procedures. Cyanidin-3-O-glucoside (C3G), which is present in various fruits and vegetables especially in Chinese bayberry, shows potent antioxidant property. In this study, we determined whether C3G could protect neonatal porcine islets (NPI) from reactive oxygen species (H2O2)-induced injury in vitro and promote the function of NPI in diabetic mice. We found that C3G had no deleterious effect on NPI and that C3G protected NPI from damage induced by H2O2...
September 20, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28931424/erratum-to-role-of-transcription-regulatory-sequence-in-regulation-of-gene-expression-and-replication-of-porcine-reproductive-and-respiratory-syndrome-virus
#14
Chengbao Wang, Han Meng, Yujin Gao, Hui Gao, Kangkang Guo, Fernando Almazan, Isabel Sola, Luis Enjuanes, Yanming Zhang, Levon Abrahamyan
After publication of the article [1], it has been brought to our attention that an acknowledgement has been omitted from the original article. The authors would like to include the following, The authors also thank Prof. En-Min Zhou (Northwest A&F University) and his laboratory for technical support."
September 20, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28930996/assessment-of-the-anticoagulant-and-anti-inflammatory-properties-of-endothelial-cells-using-3d-cell-culture-and-non-anticoagulated-whole-blood
#15
Riccardo Sfriso, Anjan Bongoni, Yara Banz, Nikolai Klymiuk, Eckhard Wolf, Robert Rieben
In vivo, endothelial cells are crucial for the natural anticoagulation of circulating blood. Consequently, endothelial cell activation leads to blood coagulation. This phenomenon is observed in many clinical situations, like organ transplantation in the presence of pre-formed anti-donor antibodies, including xenotransplantation, as well as in ischemia/reperfusion injury. In order to reduce animal experimentation according to the 3R standards (reduction, replacement and refinement), in vitro models to study the effect of endothelial cell activation on blood coagulation would be highly desirable...
September 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28929376/divergent-coronary-flow-responses-to-uridine-adenosine-tetraphosphate-in-atherosclerotic-apoe-knockout-mice
#16
Bunyen Teng, Hicham Labazi, Changyan Sun, Yan Yang, Xiaorong Zeng, S Jamal Mustafa, Zhichao Zhou
Uridine adenosine tetraphosphate (Up4A) exerts potent relaxation in porcine coronary arteries that is reduced following myocardial infarction, suggesting a crucial role for Up4A in the regulation of coronary flow (CF) in cardiovascular disorders. We evaluated the vasoactive effects of Up4A on CF in atherosclerosis using ApoE knockout (KO) mice ex vivo and in vivo. Functional studies were conducted in isolated mouse hearts using the Langendorff technique. Immunofluorescence was performed to assess purinergic P2X1 receptor (P2X1R) expression in isolated mouse coronary arteries...
September 20, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28929337/escherichia-coli-aggravates-endoplasmic-reticulum-stress-and-triggers-chop-dependent-apoptosis-in-weaned-pigs
#17
Qian Jiang, Shuai Chen, Wenkai Ren, Gang Liu, Kang Yao, Guoyao Wu, Yulong Yin
Intestinal cells can sense the presence of pathogens and trigger many important signaling pathways to maintain tissue homeostasis and normal function. Escherichia coli and lipopolysaccharides (LPS) are the main pathogenic factors of intestinal disease in pigs. However, the roles of endoplasmic reticulum stress (ERS) and its mediated apoptosis in intestinal malfunction induced by E. coli or LPS remain unclear. In the present study, we aimed to evaluate whether ERS could be activated by E. coli fed to piglets and whether the underlying mechanisms of this disease process could be exploited...
September 19, 2017: Amino Acids
https://www.readbyqxmd.com/read/28929330/development-of-a-rapid-analysis-method-for-bone-resection-margins-for-oral-squamous-cell-carcinoma-by-immunoblotting
#18
Claudia Haase, Bernd Lethaus, Ruth Knüchel-Clarke, Frank Hölzle, Angela Cassataro, Till Braunschweig
The purpose of this proof-of-principle study was to develop a rapid and approachable method to analyse bone resection margins in patients with oral squamous cell carcinoma (OSCC) in an intraoperative setting, similar to assessing frozen sections of soft tissue. Bone excision and risk of remaining tumour cells could be minimised, thus improving reconstruction measures and facilitating convalescence. Frozen, sawed wafers of porcine bone artificially combined with porcine skin (simulating OSCC properties) were used to develop and evaluate a new molecular method: protein transfer from non-decalcified, sawed wafers onto a membrane stained by immunofluorescence (Tissue-ProtTrans)...
September 19, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28929313/an-anti-propionibacterium-acnes-antibody-shows-heterologous-resistance-to-an-actinobacillus-pleuropneumoniae-infection-independent-of-neutrophils-in-mice
#19
Jian-Fang Liu, Qiu-Yue Ma, Ri-Ning Zhu, Meng-Jun Cheng, Chun-Tong Bao, Jing-Min Gu, Chang-Jiang Sun, Paul Richard Langford, Wen-Yu Han, Lian-Cheng Lei
Porcine contagious pleuropneumonia is a highly fatal respiratory disease that is caused by Actinobacillus pleuropneumoniae (APP) and results in tremendous economic losses for the pig breeding industry worldwide. Previous studies have demonstrated that Propionibacterium acnes (PA) could effectively prevent APP infection in mice and pigs. The humoral immune response played a primary role during this process and anti-PA antibody could mediate macrophages to kill the bacteria. However, the role of neutrophils in this process is currently unknown...
September 20, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28929229/a-novel-method-for-concentration-of-porcine-reproductive-and-respiratory-syndrome-virus-from-the-environmental-samples-using-self-aggregating-peptide-tagged-cd151-binding-capture
#20
Yang Zong, Xiaoyin Zong, Wenlong Xia, Zhi Wu, Guangya Li, Yangyang Li, Xinyu Zhang, Xiaoli Xia, Huaichang Sun
Environmental surveillance of porcine reproductive and respiratory syndrome virus (PRRSV) represents a key issue in control of the disease. CD151 has recently been recognized as one of several receptors for PRRSV. We describe here a novel method for concentration of PRRSV from the environmental samples by CD151-binding capture. After fusion to self-aggregating peptide ELK16, the large extracellular loop (LEL) of porcine CD151 and its two segments (namely N63 and C63) were expressed in E. coli as protein aggregates...
September 19, 2017: Applied Microbiology and Biotechnology
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