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https://www.readbyqxmd.com/read/28340459/transcriptional-profiling-of-porcine-granulosa-cells-exposed-to-2-3-7-8-tetrachlorodibenzo-p-dioxin
#1
Agnieszka Sadowska, Anna Nynca, Monika Ruszkowska, Lukasz Paukszto, Kamil Myszczynski, Karina Orlowska, Sylwia Swigonska, Tomasz Molcan, Jan P Jastrzebski, Renata E Ciereszko
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a toxic man-made chemical compound contaminating the environment. An exposure of living organisms to TCDD may result in numerous disorders, including reproductive pathologies. The aim of the current study was to examine the effects of TCDD on the transcriptome of porcine granulosa cell line AVG-16. By employing next-generation sequencing (NGS) we aimed to identify genes potentially involved in the mechanism of TCDD action and toxicity in porcine granulosa cells...
March 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28340426/porcine-parvovirus-induces-activation-of-nf-%C3%AE%C2%BAb-signaling-pathways-in-pk-15-cells-mediated-by-toll-like-receptors
#2
Liyan Cao, Jianfei Chen, Yanwu Wei, Hongyan Shi, Xin Zhang, Jing Yuan, Da Shi, Jianbo Liu, Xiangdong Zhu, Xin Wang, Shangjin Cui, Li Feng
Porcine parvovirus (PPV) is a pathogenic factor that primarily induces severe reproductive failure of pregnant swine, which results in extensive losses to the swine industry worldwide. In this study, a potential mechanism of PPV-induced activation of the nuclear transcription factor-kappaB (NF-κB) by infection in porcine kidney cells (PK-15) was elucidated for the first time. The subcellular localization of p65 analyzed by immunofluorescence assay (IFA) showed that PPV infection induced p65 translocation from the cytoplasm to the nucleus...
March 21, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28339927/characterizing-the-early-inflammatory-contribution-of-the-donor-kidney-following-reperfusion
#3
John P Stone, Muna Mohamud, Kavit Amin, William R Critchley, Rebecca J Edge, Marc J Clancy, Alexandra L Ball, James E Fildes
Background.: Donor kidneys contain a large reservoir of passenger leucocytes that contribute to acute rejection via direct alloantigen presentation and pro-inflammatory cytokine secretion. However, the early contribution of these cells following revascularization has not previously been described. We performed a secondary, high-volume preservation flush following cold storage to characterize the inflammatory contribution of the donor kidney upon reperfusion. Methods.: Porcine kidneys were retrieved using a protocol analogous to current UK clinical practice...
February 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339715/determination-of-pre-cecal-phosphorus-digestibility-of-inorganic-phosphates-and-bone-meal-products-in-broilers
#4
J van Harn, J W Spek, C A van Vuure, M M van Krimpen
A broiler study was performed to determine the pre-cecal phosphorus (P) digestibility of 5 P sources, 3 from animal (Delfos, Calfos, and porcine bone meal) and 2 of inorganic (monocalcium phosphate [MCP] and dicalcium phosphate [DCP]) origin. Delfos is processed from bones resulting in a dicalcium phosphate product, and Calfos is processed from bones in which part of the gelatin is removed but in which the hydroxy-apatite matrix is preserved. During the first 14 d, birds were housed in floor pens bedded with wood shavings and received a commercial starter diet...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339619/relationship-of-neuropeptide-ff-receptors-with-pubertal-maturation-of-gilts%C3%A2
#5
Jennifer F Thorson, Neely L Heidorn, Vitaly Ryu, Krzysztof Czaja, Danny J Nonneman, C Richard Barb, Gary J Hausman, Gary A Rohrer, Ligia D Prezotto, Richard B McCosh, Elane C Wright, Brett R White, Bradley A Freking, William T Oliver, Stanley M Hileman, Clay A Lents
Mechanisms governing the timing of puberty in pigs are poorly understood. A genome-wide association study for age at first estrus in pigs identified candidate genes including neuropeptide FF receptor 2 (NPFFR2), which is a putative receptor for RFamide-related peptides (RFRP). RFRP has been shown to negatively regulate secretion of reproductive hormones from hypothalamic and pituitary tissue of pigs in culture. Here, the porcine NPFFR2 gene was further screened and four potentially functional variants were identified to be associated with age at first estrus in pigs (1,288 gilts)...
January 28, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339553/de-and-recellularization-of-the-pig-uterus-a-bioengineering-pilot-study%C3%A2
#6
Hannes Campo, Pedro M Baptista, Nuria López-Pérez, Amparo Faus, Irene Cervelló, Carlos Simón
Absolute uterine factor infertility, or the absence of a functional uterus, has a prevalence of 3%-5% in the general population. Despite the great strides being made in reproductive medicine, patients diagnosed with absolute uterine factor infertility remain untreatable. The only available solution has been gestational surrogacy, but recently the Brannström group presented a viable alternative by reporting the first successful live birth after uterus transplantation. Similar to other transplantations, this approach has inherent limitations such as the paucity of donor organs and the need for long-term immunosuppression...
December 27, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/28339537/stimulatory-effects-of-fibroblast-growth-factor-2-on-proliferation-and-migration-of-uterine-luminal-epithelial-cells-during-early-pregnancy%C3%A2-%C3%A2
#7
Whasun Lim, Hyocheol Bae, Fuller W Bazer, Gwonhwa Song
Fibroblast growth factor 2 (FGF2) is a mitogen that induces proliferation, differentiation, and migration of cells, as well as angiogenesis and carcinogenesis via autocrine or paracrine actions. Fibroblast growth factor 2 expression is abundant in porcine conceptuses and endometrium during the estrous cycle and peri-implantation period of pregnancy. However, its intracellular actions in uterine epithelial cells have not been reported. The results of this study indicated abundant expression of FGFR1 and FGFR2 predominantly in uterine luminal and glandular epithelia during early pregnancy and that their expression decreased with increasing parity of the sows...
December 20, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/28338777/the-chlamydia-suis-genome-exhibits-high-levels-of-diversity-plasticity-and-mobile-antibiotic-resistance-comparative-genomics-of-a-recent-livestock-cohort-shows-influence-of-treatment-regimes
#8
Helena M B Seth-Smith, Sabrina Wanninger, Nathan Bachmann, Hanna Marti, Weihong Qi, Manuela Donati, Antonietta di Francesco, Adam Polkinghorne, Nicole Borel
Chlamydia suis is an endemic pig pathogen, belonging to a fascinating genus of obligate intracellular pathogens. Of particular interest, this is the only chlamydial species to have naturally acquired genes encoding for tetracycline resistance. To date, the distribution and mobility of the Tet-island is not well understood. Our study focused on whole genome sequencing of 29 C. suis isolates from a recent porcine cohort within Switzerland, combined with data from USA tetracycline-resistant isolates. Our findings show that the genome of C...
March 2, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28337939/bidirectional-apical-basal-traffic-of-the-cation-independent-mannose-6-phosphate-receptor-in-brain-endothelial-cells
#9
Piotr Siupka, Maria Ns Hersom, Karin Lykke-Hartmann, Kasper B Johnsen, Louiza B Thomsen, Thomas L Andresen, Torben Moos, N Joan Abbott, Birger Brodin, Morten S Nielsen
Brain capillary endothelium mediates the exchange of nutrients between blood and brain parenchyma. This barrier function of the brain capillaries also limits passage of pharmaceuticals from blood to brain, which hinders treatment of several neurological disorders. Receptor-mediated transport has been suggested as a potential pharmaceutical delivery route across the brain endothelium, e.g. reports have shown that the transferrin receptor (TfR) facilitates transcytosis of TfR antibodies, but it is not known whether this recycling receptor itself traffics from apical to basal membrane in the process...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28337858/transdermal-protein-delivery-using-choline-and-geranate-cage-deep-eutectic-solvent
#10
Amrita Banerjee, Kelly Ibsen, Yasunori Iwao, Michael Zakrewsky, Samir Mitragotri
Transdermal delivery of peptides and other biological macromolecules is limited due to skin's inherent low permeability. Here, the authors report the use of a deep eutectic solvent, choline and geranate (CAGE), to enhance topical delivery of proteins such as bovine serum albumin (BSA, molecular weight: ≈66 kDa), ovalbumin (OVA, molecular weight: ≈45 kDa) and insulin (INS, molecular weight: 5.8 kDa). CAGE enhances permeation of BSA, OVA, and insulin into porcine skin ex vivo, penetrating deep into the epidermis and dermis...
March 24, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28337854/silk-fibroin-biomaterial-shows-safe-and-effective-wound-healing-in-animal-models-and-a-randomized-controlled-clinical-trial
#11
Wei Zhang, Longkun Chen, Jialin Chen, Lingshuang Wang, Xuexian Gui, Jisheng Ran, Guowei Xu, Hongshi Zhao, Mengfeng Zeng, Junfeng Ji, Li Qian, Jianda Zhou, Hongwei Ouyang, Xiaohui Zou
Due to its excellent biological and mechanical properties, silk fibroin has been intensively explored for tissue engineering and regenerative medicine applications. However, lack of translational evidence has hampered its clinical application for tissue repair. Here a silk fibroin film is developed and its translational potential is investigated for skin repair by performing comprehensive preclinical and clinical studies to fully evaluate its safety and effectiveness. The silk fibroin film fabricated using all green chemistry approaches demonstrates remarkable characteristics, including transmittance, fluid handling capacity, moisture vapor permeability, waterproofness, bacterial barrier properties, and biocompatibility...
March 24, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28337545/retrospective-investigation-and-evolutionary-analysis-of-a-novel-porcine-deltacoronavirus-strain-detected-in-thailand-from-2008-to-2015
#12
Kepalee Saeng-Chuto, Christopher J Stott, Matthew Wegner, Raweewan Senasuthum, Angkana Tantituvanont, Dachrit Nilubol
Porcine deltacoronavirus (PDCoV) in Thailand was first detected in 2015. We performed a retrospective investigation of the presence of PDCoV in intestinal samples collected from piglets with diarrhea in Thailand from 2008 to 2015 using RT-PCR. PDCoV was found to be present as early as February 2013. Phylogenetic analysis demonstrated that all PDCoV variants from Thailand differ from those from other countries and belong to a novel group of PDCoV that is separate from the US and Chinese PDCoV variants. Evolutionary analysis suggested that the Thai PDCoV isolates probably diverged from a different ancestor from that of the Chinese and US PDCoV isolates and that this separation occurred after 1994...
March 23, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28337488/supercritical-carbon-dioxide-based-sterilization-of-decellularized-heart-valves
#13
Ryan S Hennessy, Soumen Jana, Brandon J Tefft, Meghana R Helder, Melissa D Young, Rebecca R Hennessy, Nicholas J Stoyles, Amir Lerman
OBJECTIVE: The goal of this research project encompasses finding the most efficient and effective method of decellularized tissue sterilization. BACKGROUND: Aortic tissue grafts have been utilized to repair damaged or diseased valves. Although, the tissues for grafting are collected aseptically, it does not eradicate the risk of contamination nor disease transfer. Thus, sterilization of grafts is mandatory. Several techniques have been applied to sterilize grafts; however, each technique shows drawbacks...
February 2017: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/28337481/waterjet-submucosal-dissection-of-porcine-esophagus-with-the-hybridknife-and-erbejet-2-system-a-pilot-study
#14
Daisuke Akutsu, Hideo Suzuki, Toshiaki Narasaka, Masahiko Terasaki, Tsuyoshi Kaneko, Hirofumi Matsui, Yuji Mizokami, Ichinosuke Hyodo
Background and study aims Esophageal endoscopic submucosal dissection (ESD) is technically difficult because of narrow working spaces and ease of perforation due to the lack of serosa. HybridKnife is a recently developed ESD device that is combined with the high pressure waterjet ERBEJET 2 system to lift mucosa. We hypothesized that this waterjet could make submucosal dissection safer and studied this in porcine esophagus. Materials and methods Water pressures of 30 - 70 bar were tested to determine the appropriate pressure for waterjet ESD with HybridKnife (WJ-ESD) in one pig...
January 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28337462/time-and-dose-dependent-effects-of-17-beta-estradiol-on-short-term-real-time-proliferation-and-gene-expression-in-porcine-granulosa-cells
#15
Sylwia Ciesiółka, Joanna Budna, Karol Jopek, Artur Bryja, Wiesława Kranc, Sylwia Borys, Michal Jeseta, Adrian Chachuła, Agnieszka Ziółkowska, Paweł Antosik, Dorota Bukowska, Klaus P Brüssow, Małgorzata Bruska, Michał Nowicki, Maciej Zabel, Bartosz Kempisty
The key mechanisms responsible for achievement of full reproductive and developmental capability in mammals are the differentiation and transformation of granulosa cells (GCs) during folliculogenesis, oogenesis, and oocyte maturation. Although the role of 17 beta-estradiol (E2) in ovarian activity is widely known, its effect on proliferative capacity, gap junction connection (GJC) formation, and GCs-luteal cells transformation requires further research. Therefore, the goal of this study was to assess the real-time proliferative activity of porcine GCs in vitro in relation to connexin (Cx), luteinizing hormone receptor (LHR), follicle stimulating hormone receptor (FSHR), and aromatase (CYP19A1) expression during short-term (168 h) primary culture...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28337283/intracoronary-hypothermia-for-acute-myocardial-infarction-in-the-isolated-beating-pig-heart
#16
Luuk C Otterspoor, Lokien X van Nunen, Tilaï T Rosalina, Marcel Van't Veer, Sjoerd Van Tuijl, Marco Stijnen, Marcel Cm Rutten, Frans N van de Vosse, Nico Hj Pijls
Hypothermia may attenuate reperfusion injury and thereby improve acute myocardial infarction therapy. Systemic cooling trials failed to reduce infarct size, perhaps because the target temperature was not reached fast enough. The use of selective intracoronary hypothermia combined with intracoronary temperature monitoring allows for titrating to target temperature and optimizing the cooling rate. We aimed to the test the feasibility of intracoronary cooling for controlled, selective myocardial hypothermia in an isolated beating pig heart...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28336346/antiviral-activity-of-the-adenosine-analogue-bcx4430-against-west-nile-virus-and-tick-borne-flaviviruses
#17
Luděk Eyer, Darina Zouharová, Jana Širmarová, Martina Fojtíková, Michal Štefánik, Jan Haviernik, Radim Nencka, Erik de Clercq, Daniel Růžek
There are currently no approved antiviral therapies against medically important human flaviviruses. The imino-C-nucleoside BCX4430 shows broad-spectrum antiviral activity against a wide range of RNA viruses. Here, we demonstrate that BCX4430 inhibits tick-borne species of the genus Flavivirus; however, the antiviral effect varies against individual species. Micro-molar BCX4430 levels inhibited tick-borne encephalitis virus (TBEV); while, approximately 3-8-fold higher concentrations were needed to inhibit louping ill virus and Kyasanur Forest disease virus...
March 20, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28336300/development-of-topical-delivery-systems-for-flightless-neutralizing-antibody
#18
Hanif Haidari, Qian Zhang, Elizabeth Melville, Zlatko Kopecki, Yunmei Song, Allison J Cowin, Sanjay Garg
Flightless I (Flii) is an actin remodelling protein important for cytoskeletal regulation and cellular processes including migration, proliferation and adhesion. Previous studies have clearly identified Flii as a novel therapeutical target for improved wound repair and have demonstrated Flii regulation using Flii neutralizing antibodies (FnAb) in different models of wound healing in vivo. Here we describe the development of an optimised topical delivery system that can neutralize Flii activity in the epidermis...
March 20, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28335505/porcine-epidemic-diarrhea-virus-induces-autophagy-to-benefit-its-replication
#19
Xiaozhen Guo, Mengjia Zhang, Xiaoqian Zhang, Xin Tan, Hengke Guo, Wei Zeng, Guokai Yan, Atta Muhammad Memon, Zhonghua Li, Yinxing Zhu, Bingzhou Zhang, Xugang Ku, Meizhou Wu, Shengxian Fan, Qigai He
The new porcine epidemic diarrhea (PED) has caused devastating economic losses to the swine industry worldwide. Despite extensive research on the relationship between autophagy and virus infection, the concrete role of autophagy in porcine epidemic diarrhea virus (PEDV) infection has not been reported. In this study, autophagy was demonstrated to be triggered by the effective replication of PEDV through transmission electron microscopy, confocal microscopy, and Western blot analysis. Moreover, autophagy was confirmed to benefit PEDV replication by using autophagy regulators and RNA interference...
March 19, 2017: Viruses
https://www.readbyqxmd.com/read/28335454/porcine-rotaviruses-epidemiology-immune-responses-and-control-strategies
#20
REVIEW
Anastasia N Vlasova, Joshua O Amimo, Linda J Saif
Rotaviruses (RVs) are a major cause of acute viral gastroenteritis in young animals and children worldwide. Immunocompetent adults of different species become resistant to clinical disease due to post-infection immunity, immune system maturation and gut physiological changes. Of the 9 RV genogroups (A-I), RV A, B, and C (RVA, RVB, and RVC, respectively) are associated with diarrhea in piglets. Although discovered decades ago, porcine genogroup E RVs (RVE) are uncommon and their pathogenesis is not studied well...
March 18, 2017: Viruses
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