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https://www.readbyqxmd.com/read/28438410/vaccination-with-recombinant-modified-vaccinia-ankara-mva-viruses-expressing-single-african-horse-sickness-virus-vp2-antigens-induced-cross-reactive-virus-neutralising-antibodies-vnab-in-horses-when-administered-in-combination
#1
Nicola Mary Manning, Katarzyna Bachanek-Bankowska, Peter Paul Clement Mertens, Javier Castillo-Olivares
African horse sickness is a lethal viral disease of equids transmitted by biting midges of the Genus Culicoides. The disease is endemic to sub-Saharan Africa but outbreaks of high mortality and economic impact have occurred in the past in non-endemic regions of Africa, Asia and Southern Europe. Vaccination is critical for the control of this disease but only live attenuated vaccines are currently available. However, there are bio-safety concerns over the use of this type of vaccines, especially in non-endemic countries, and live attenuated vaccines do not have DIVA (Differentiation of Infected from Vaccinated Animals) capacity...
April 21, 2017: Vaccine
https://www.readbyqxmd.com/read/28438095/arcobacter-an-emerging-food-borne-zoonotic-pathogen-its-public-health-concerns-and-advances-in-diagnosis-and-control-a-comprehensive-review
#2
Thadiyam Puram Ramees, Kuldeep Dhama, Kumaragurubaran Karthik, Ramswaroop Singh Rathore, Ashok Kumar, Mani Saminathan, Ruchi Tiwari, Yashpal Singh Malik, Raj Kumar Singh
Arcobacter has emerged as an important food-borne zoonotic pathogen, causing sometimes serious infections in humans and animals. Newer species of Arcobacter are being incessantly emerging (presently 25 species have been identified) with novel information on the evolutionary mechanisms and genetic diversity among different Arcobacter species. These have been reported from chickens, domestic animals (cattle, pigs, sheep, horses, dogs), reptiles (lizards, snakes and chelonians), meat (poultry, pork, goat, lamb, beef, rabbit), vegetables and from humans in different countries...
April 25, 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28437703/antiviral-treatment-strategies-based-on-gene-silencing-and-genome-editing
#3
REVIEW
Roger Badia, Ester Ballana, José A Esté, Eva Riveira-Muñoz
The ability of some viruses to establish latently infected chronic reservoirs that escape to immune control becomes a major roadblock that impedes the cure of these infections. Therefore, new alternatives are needed to pursuit the eradication of viral persistent infections. Gene silencing technologies are in constant evolution and provide an outstanding sequence specificity that allows targeting any coding sequence of interest. Here we provide an overview of the development of gene silencing technologies ranging from initially RNA interference to the recently developed CRISPR/Cas9 and their potential as new antiviral strategies focusing on the eradication of HIV...
April 21, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28435078/preformulation-studies-of-ceftriaxone-for-pediatric-non-parenteral-administration-as-an-alternative-to-existing-injectable-formulations
#4
Tina Kauss, Mathieu Marchivie, Thida Phoeung, Alexandra Gaubert, Amélie Désiré, Giovanni Tonelli, Chantal Boyer, Marie-Hélène Langlois, Anthony Cartwright, Melba Gomes, Nicholas White, Karen Gaudin
Ceftriaxone, a third generation cephalosporin, has a wide antibacterial spectrum that has good CNS penetration, which makes it potentially suitable for initial treatment of severe neonatal pediatric infections providing suitable formulation. We evaluated its physicochemical and technical characteristics to assess its potential for development as a non-parenteral dosage form. As ceftriaxone is marked only for injectable use, these data are not available. Using HPLC and Karl Fischer titration, sensitivity of ceftriaxone to water, feasibility and impact of pharmaceutical processes and compatibility with common pharmaceutical excipients were assessed...
April 20, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28434971/prevalence-and-genetic-characterization-of-toxoplasma-gondii-in-badgers-melogale-moschata-in-southern-china-by-pcr-rflp
#5
Kai Chen, Si-Yang Huang, Jin-Lei Wang, Rong-Liang Hu, Qiu-Xia Yao, Shou-Feng Zhang, Xing-Quan Zhu, Quan Liu
Toxoplasma gondii is an obligate intracellular apicomplexan parasite which is able to infect almost all warm-blooded animals. There is no information about the prevalence and genetic characterization of T. gondii in badgers (Melogale moschata) in China. Here, a total of 367 badgers were captured from different cities in Jiangxi province, Southern China. Genomic DNA was extracted from brain tissues of each badgers, and 57 (15.45%) of them were positive for T. gondii by semi-nested PCR of the B1 gene. The positive DNA samples were typed at 11 genetic markers, including 10 nuclear loci (SAG1, 5'-SAG2 and 3'-SAG2, alternative SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1) and an apicoplast locus (Apico), with multilocus polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technology...
April 20, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28434696/complete-eradication-of-biofilm-from-orthopedic-materials
#6
Jeffrey T Leary, Matthew M Werger, William H Broach, Lindsey N Shaw, Brandon G Santoni, Thomas L Bernasek, Steven T Lyons
BACKGROUND: Interest exists in finding alternatives to current management strategies in periprosthetic joint infections, which typically include a 2-stage revision with placement of an antibiotic spacer and delayed placement of a new implant. We studied the efficacy of autoclaving, ultrasonication, and mechanical scrubbing for sterilization and biofilm eradication on infected cobalt-chrome discs. METHODS: Strains of Staphylococcus aureus MRSA252 or Staphylococcus epidermidis RP62A were grown on the discs...
March 29, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28433987/radiofrequency-lesions-through-deep-brain-stimulation-electrodes-in-movement-disorders-case-report-and-review-of-the-literature
#7
Javier Pérez-Suárez, Cristina V Torres Díaz, Lydia López Manzanares, Marta Navas García, Jesús Pastor, Patricia Barrio Fernández, Rafael G de Sola
BACKGROUND: Although there are few reports of radiofrequency lesions performed through deep brain stimulation (DBS) electrodes in patients with movement disorders, experience with this method is scarce. METHODS: We present 2 patients who had been previously treated with DBS of subthalamic nuclei (STN) and the ventral intermediate (VIM) nucleus of the thalamus for Parkinson's disease and essential tremor, respectively, and underwent a radiofrequency lesion through their DBS electrodes after developing a hardware infection...
April 22, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28433681/n-aryl-n-ethyleneaminothioureas-effectively-inhibit-acetylcholinesterase-1-from-disease-transmitting-mosquitoes
#8
Sofie Knutsson, Tomas Kindahl, Cecilia Engdahl, Dariush Nikjoo, Nina Forsgren, Stanley Kitur, Fredrik Ekström, Luna Kamau, Anna Linusson
Vector control of disease-transmitting mosquitoes by insecticides has a central role in reducing the number of parasitic- and viral infection cases. The currently used insecticides are efficient, but safety concerns and the development of insecticide-resistant mosquito strains warrant the search for alternative compound classes for vector control. Here, we have designed and synthesized thiourea-based compounds as non-covalent inhibitors of acetylcholinesterase 1 (AChE1) from the mosquitoes Anopheles gambiae (An...
March 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28424455/flow-virometry-analysis-of-envelope-glycoprotein-conformations-on-individual-hiv-virions
#9
Anush Arakelyan, Wendy Fitzgerald, Deborah F King, Paul Rogers, Hannah M Cheeseman, Jean-Charles Grivel, Robin J Shattock, Leonid Margolis
HIV-1 envelope proteins (Envs) play a critical role in HIV infection. In a correct trimeric conformation, Env mediates virus-cell binding and fusion. Malfunctioning of this machinery renders virions incapable of infecting cells. Each HIV-1 virion carries 10-14 Envs, and therefore a defective Env may not necessarily render a HIV virion non-infectious, since other Env on the same virion may still be functional. Alternatively, it is possible that on a given virion either all the spikes are defective or all are functional...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424281/distinct-roles-of-vaccinia-virus-nf-kb-inhibitor-proteins-a52-b15-and-k7-in-the-immune-response
#10
Mauro Di Pilato, Ernesto Mejías-Pérez, Carlos Oscar S Sorzano, Mariano Esteban
Poxviruses use a complex strategy to escape immune control, by expressing immunomodulatory proteins that could limit their use as vaccine vectors. To test the role of poxvirus NF-κB pathway inhibitors A52, B15 and K7 in immunity, we deleted their genes in a NYVAC vaccinia virus strain that expresses HIV-1 clade C antigens. After infection of mice, ablation of A52R, B15R and K7R increased dendritic cell, natural killer cell and neutrophil migration as well as chemokine/cytokine expression. Revertant viruses for these genes confirmed their role in inhibiting the innate immune system...
April 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28423414/discovery-development-and-evaluation-of-a-horn-fly-isolated-diptera-muscidae-beauveria-bassiana-hypocreales-cordyciptaceae-strain-from-florida-usa
#11
Christopher J Holderman, Lois A Wood, Christopher J Geden, Phillip E Kaufman
The horn fly, Haematobia irritans (L.) is an important cattle pest and traditionally has been managed using insecticides; however, many horn fly populations are insecticide-resistant in United States. Use of alternative control techniques has been limited because of the challenges of managing a fly pest on pastured cattle. After the discovery of a wild horn fly infected with Beauveria bassiana in Florida, the fungus was cultured and evaluated for efficacy against laboratory-reared horn flies. This fungal strain was selected for increased virulence by passage through laboratory-reared horn fly hosts to shorten interval from infection to fly death and subsequent conidia formation, properties important to future use of the fungus as a biological control agent against horn flies...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28421881/factors-pivotal-for-designing-of-nanoantimicrobials-an-exposition
#12
Bushra Jamil, Muhammad Imran
Understanding the interplay between bacterial pathogens and antimicrobials is a key to realize the control over infections causing morbidity and mortality. An important current issue of contemporary medicine and microbiology is the search for new strategies for adequate therapy of infectious diseases associated with rapidly emerging multidrug-resistant (MDR) pathogens. Recently, a great deal of progress has been made in the field of nanobiotechnology towards the development of various nanoantimicrobials (NAMs) as novel therapeutic solution...
April 19, 2017: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28421819/il-4-induces-the-il17rb-gene-transcription-in-monocytic-cells-with-coordinate-autocrine-il-25-signaling
#13
Nathaniel M Weathington, Shreya S Kanth, Qiaoke Gong, James Londino, Akihiko Hoji, Mauricio Rojas, John Trudeau, Sally Wenzel, Rama K Mallampalli
IL-25 and IL-4 signaling in the setting of infection or allergic responses can drive Type 2 inflammation. IL-25 requires the IL-17 receptor B (IL-17Rb) to mediate signaling through nuclear factor kappa B transcriptional activation. Despite the known coexistence of these two cytokines in the Type 2 inflammatory environment, collaborative signaling between the IL-4 and IL-25 axes is poorly explored. Here we demonstrate IL-4 induction of both IL-25 and IL-17Rb protein in human lung tissue culture, primary alveolar macrophages, and the THP-1 monocytic cell line...
April 19, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28418081/assessment-of-biofilm-removal-capacity-of-a-broad-host-range-bacteriophage-jhp-against-pseudomonas-aeruginosa
#14
Muafia Shafique, Iqbal Ahmad Alvi, Zaigham Abbas, Shafiq Ur Rehman
Pseudomonas aeruginosa is an efficient biofilm-dwelling microbial pathogen, associated with nosocomial infections. These biofilm-associated infections are resistant to antibiotics and immune defenses, therefore pose major problem against their treatment. This scenario demands alternative therapeutic regimens, and bacteriophage therapy is one among potential strategies for clinical management of multiple drug resistance. In this investigation, the efficacy of a bacteriophage, JHP, is evaluated to eradicate P...
April 18, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28417665/can-intracapsular-tonsillectomy-be-an-alternative-to-classical-tonsillectomy-a-meta-analysis
#15
Jong Seung Kim, Sam Hyun Kwon, Eun Jung Lee, Yong Joo Yoon
Objective Tonsillectomy is the most common operation performed in the otolaryngologic fields. Efforts have been made to reduce postoperative complications, and one of these is intracapsular tonsillectomy and adenoidectomy (ICTA), which leaves the tonsillar tissue with tonsillar capsule. This study aimed to evaluate intracapsular tonsillectomy compared with classical extracapsular tonsillectomy in terms of efficacy of the technique for managing obstructive sleep apnea (OSA) and reducing postoperative complications...
March 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28416423/dietary-administration-of-sodium-alginate-ameliorated-stress-and-promoted-immune-resistance-of-grouper-epinephelus-coioides-under-cold-stress
#16
Pai-Po Lee, Yu-Hung Lin, Min-Chieh Chen, Winton Cheng
Grouper, Epinephelus coioides, fed a diet containing sodium alginate at 0 (control, named C) and 1.0 g kg(-1) (named S) at a temperature of 28 °C for 12 days, were then further individually transferred to 28 (two groups named C-28 and S-28) or 20 °C (two groups named C-20 and S-20), and immune parameters and stress indexes were measured at the beginning and after 6, 12, 24 and 48 h of exposure. Examination of immune parameters revealed that the alternative complement activity (ACH50), lysozyme activity, phagocytic activity, superoxide dismutase, and respiratory bursts significantly increased in groupers fed the sodium alginate-containing diet for 12 days, and were higher in the S-28 than those of the C-28 and S-20 groups, which were higher than those of the C-20 group from 6 to 48 h except for ACH50 at 48 h, respiratory bursts at 48 h, and lysozymes at 6 h...
April 14, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28413051/protective-efficacy-of-a-novel-recombinant-marek-s-disease-virus-vector-vaccine-against-infectious-bursal-disease-in-chickens-with-or-without-maternal-antibodies
#17
Kai Li, Yongzhen Liu, Yanping Zhang, Li Gao, Changjun Liu, Hongyu Cui, Xiaole Qi, Yulong Gao, Li Zhong, Xiaomei Wang
Infectious bursal disease (IBD) causes significant clinical and economic losses to the poultry industry worldwide. Current vaccine programs using live attenuated and inactivated vaccines have numerous drawbacks. As an alternative solution to control IBD, a Marek's disease virus (MDV) vector vaccine (rMDV-VP2) expressing the VP2 gene of infectious bursal disease virus (IBDV) has been developed. In this study, the protective efficacy of rMDV-VP2 was evaluated in a dose-related experiment which showed that a single dose of 1000 PFU was sufficient to fully protect chickens against IBDV infection...
April 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28408944/pc2-ovotransferrin-characterization-and-alternative-immunotherapeutic-activity
#18
Constantin Chiurciu, Viorica Chiurciu, Mariana Oporanu, Ionel Victor Pătrașcu, Iuliana Mihai, Mădălina Tablică, Romeo Teodor Cristina
Characterization and evaluation of immunotherapeutic potential of ovotransferrin PC2 (OTf PC2) were performed in this study. The ovoprotein was obtained from egg white from hens immunized with bacterial antigens, pathogenic for humans. For the negative control samples, OTf was extracted from eggs collected from Specific Pathogen-Free (SPF) hens and purified by affinity chromatography on Protein G-agarose column with two eluting peaks: I, representing ovalbumin, and II, ovotransferrin. The final apo-OTf form was reached by successive precipitation with ammonium sulfate and citric acid and the holo-OTf form by saturating the apo-form with FeCl3...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28407643/the-use-of-mathematical-models-of-chlamydia-transmission-to-address-public-health-policy-questions-a-systematic-review
#19
Minttu M Rönn, Emory E Wolf, Harrell Chesson, Nicolas A Menzies, Kara Galer, Rachel Gorwitz, Thomas Gift, Katherine Hsu, Joshua A Salomon
BACKGROUND: Mathematical models of chlamydia transmission can help inform disease control policy decisions when direct empirical evaluation of alternatives is impractical. We reviewed published chlamydia models to understand the range of approaches used for policy analyses and how the studies have responded to developments in the field. METHODS: We performed a literature review by searching Medline and Google Scholar (up to October 2015) to identify publications describing dynamic chlamydia transmission models used to address public health policy questions...
May 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28403882/pathobiological-investigation-of-naturally-infected-canine-rabies-cases-from-sri-lanka
#20
S Beck, P Gunawardena, D L Horton, D J Hicks, D A Marston, A Ortiz-Pelaez, A R Fooks, A Núñez
BACKGROUND: The recommended screening of rabies in 'suspect' animal cases involves testing fresh brain tissue. The preservation of fresh tissue however can be difficult under field conditions and formalin fixation provides a simple alternative that may allow a confirmatory diagnosis. The occurrence and location of histopathological changes and immunohistochemical (IHC) labelling for rabies in formalin fixed paraffin embedded (FFPE) canine brain is described in samples from 57 rabies suspect cases from Sri-Lanka...
April 12, 2017: BMC Veterinary Research
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