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https://www.readbyqxmd.com/read/28644648/crossing-over-from-attractive-to-repulsive-interactions-in-a-tunneling-bosonic-josephson-junction
#1
G Spagnolli, G Semeghini, L Masi, G Ferioli, A Trenkwalder, S Coop, M Landini, L Pezzè, G Modugno, M Inguscio, A Smerzi, M Fattori
We explore the interplay between tunneling and interatomic interactions in the dynamics of a bosonic Josephson junction. We tune the scattering length of an atomic ^{39}K Bose-Einstein condensate confined in a double-well trap to investigate regimes inaccessible to other superconducting or superfluid systems. In the limit of small-amplitude oscillations, we study the transition from Rabi to plasma oscillations by crossing over from attractive to repulsive interatomic interactions. We observe a critical slowing down in the oscillation frequency by increasing the strength of an attractive interaction up to the point of a quantum phase transition...
June 9, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28643952/asn194lys-mutation-in-rvg29-peptide-increases-gfp-transgene-delivery-by-endocytosis-to-neuroblastoma-and-astrocyte-cells
#2
Sheila Adela Villa-Cedillo, Humberto Rodríguez-Rocha, Laura Mireya Zavala-Flores, Roberto Montes-de-Oca-Luna, Aracely García-García, Maria de Jesus Loera-Arias, Odila Saucedo-Cárdenas
OBJECTIVES: A cell-penetrating peptide-based delivery system could target specific types of cells for therapeutic genes delivery. To increase the gene delivery efficiency into neuronal phenotype cells, we introduced an Asn194Lys mutation to RVG29 peptide derived from rabies virus glycoprotein and added a nuclear localization signal to enhance its nuclear import. METHODS: Mutant RVG or wild-type RVG peptide, a karyophilic peptide (KP) and a plasmid encoding green fluorescent protein (pGL) were bound by electrostatic charges to form four different kinds of RVG complexes...
June 23, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28643753/dosimetric-characteristic-of-physical-wedge-versus-enhanced-dynamic-wedge-based-on-monte-carlo-simulations
#3
Seied Rabie Mahdavi, Ghazale Geraily, Ahmad Mostaar, Arman Zia, Golbarg Esmaili, Somayeh Farahani
AIM OF STUDY: Physical wedges (PWs) are widely used in radiotherapy to obtain tilted isodose curves, but they alter beam quality. Dynamic wedges (DWs) using moving collimator overcome this problem, but measuring their beam data is not simple. The main aim of this study is to obtain all dosimetric parameters of DWs produced by Varian 2100CD with Monte Carlo simulation and compare them to those from PWs. SUBJECTS AND METHODS: To simulate 6 MV photon beams equipped with PW and DW, BEAMnrc code was used...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28643547/rabies%C3%A2-%C3%A2-epidemiology-pathogenesis-public-health-concerns-and-advances-in-diagnosis-and-control-a-comprehensive-review
#4
Rajendra Singh, Karam Pal Singh, Susan Cherian, Mani Saminathan, Sanjay Kapoor, G B Manjunatha Reddy, Shibani Panda, Kuldeep Dhama
Rabies is a zoonotic, fatal and progressive neurological infection caused by rabies virus of the genus Lyssavirus and family Rhabdoviridae. It affects all warm-blooded animals and the disease is prevalent throughout the world and endemic in many countries except in Islands like Australia and Antarctica. Over 60,000 peoples die every year due to rabies, while approximately 15 million people receive rabies post-exposure prophylaxis (PEP) annually. Bite of rabid animals and saliva of infected host are mainly responsible for transmission and wildlife like raccoons, skunks, bats and foxes are main reservoirs for rabies...
December 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28641888/oral-vaccination-of-wildlife-against-rabies-differences-among-host-species-in-vaccine-uptake-efficiency
#5
Ad Vos, Conrad M Freuling, Boris Hundt, Christiane Kaiser, Sabine Nemitz, Andreas Neubert, Tobias Nolden, Jens P Teifke, Verena Te Kamp, Reiner Ulrich, Stefan Finke, Thomas Müller
Oral vaccination using attenuated and recombinant rabies vaccines has been proven a powerful tool to combat rabies in wildlife. However, clear differences have been observed in vaccine titers needed to induce a protective immune response against rabies after oral vaccination in different reservoir species. The mechanisms contributing to the observed resistance against oral rabies vaccination in some species are not completely understood. Hence, the immunogenicity of the vaccine virus strain, SPBN GASGAS, was investigated in a species considered to be susceptible to oral rabies vaccination (red fox) and a species refractory to this route of administration (striped skunk)...
June 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28641772/susac-syndrome-a-differential-diagnosis-of-white-matter-lesions
#6
Mariano Marrodan, Jorge Correale, Lucas Alessandro, Mariela Amaya, Maria Eugenia Fracaro, Alejandro Alfredo Köhler, Marcela Fiol
INTRODUCTION: Susac Syndrome is an autoimmune endotheliopathy affecting capillaries and precapillary arterioles of the brain, inner ear and retina. The classic symptom triad includes visual disturbances, hypoacusia, and encephalopathy, but is rarely fully manifest at onset. The syndrome typically follows an active fluctuating monophasic course. Typical imaging findings on brain magnetic resonance show central fiber microischemias/microinfarctions of the corpus callosum known as "snow balls", as well as lineal infarcts and upper callosal fiber involvement...
July 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28637751/ifit2-is-a-restriction-factor-in-rabies-virus-pathogenicity
#7
Benjamin M Davis, Volker Fensterl, Tessa M Lawrence, Andrew W Hudacek, Ganes C Sen, Matthias J Schnell
Understanding the interactions between rabies virus (RABV) and individual host cell proteins is critical for the development of targeted therapies. Here we report that Interferon-induced protein with tetratricopeptide repeats 2 (Ifit2), an interferon-stimulated gene (ISG) with possible RNA-binding capacity, is an important restriction factor for rabies virus. When Ifit2 was depleted, RABV grew more quickly in mouse neuroblastoma in vitro This effect was replicated in vivo, where Ifit2 knockout mice displayed a dramatically more severe disease phenotype than wild-type after intranasal inoculation of RABV...
June 21, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28637457/descriptive-and-network-analyses-of-the-equine-contact-network-at-an-equestrian-show-in-ontario-canada-and-implications-for-disease-spread
#8
Kelsey L Spence, Terri L O'Sullivan, Zvonimir Poljak, Amy L Greer
BACKGROUND: Identifying the contact structure within a population of horses attending a competition is an important element towards understanding the potential for the spread of equine pathogens as the horses subsequently travel from location to location. However, there is limited information in Ontario, Canada to quantify contact patterns of horses. The objective of this study was to describe the network of potential contacts associated with an equestrian show to determine how this network structure may influence potential disease transmission...
June 21, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28636997/an-optimized-hmgb1-expressed-by-recombinant-rabies-virus-enhances-immunogenicity-through-activation-of-dendritic-cells-in-mice
#9
Zhao Wang, Qian Liang, Yajing Zhang, Jie Yang, Mingming Li, Kunlun Wang, Min Cui, Huanchun Chen, Zhen F Fu, Ling Zhao, Ming Zhou
Rabies remains an important public health threat, killing approximately 59,000 people worldwide annually, most of which are from the developing countries of Africa and Asia where dog rabies are endemic. Therefore, developing an affordable and efficacious vaccine for dog-mediated rabies control is needful in these countries. Our previous studies indicated that over-expression of granulocyte-macrophage colony stimulating factor (GM-CSF) or macrophage inflammatory protein-1 (MIP-1α or CCL3) by recombinant rabies virus (rRABV) could enhance the immunogenicity by activating dendritic cells (DCs)...
June 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28635524/serology-and-protein-electrophoresis-for-evidence-of-exposure-to-12-mink-pathogens-in-free-ranging-american-mink-neovison-vison-in-argentina
#10
Pablo Eduardo Martino, Luis Ernesto Samartino, Néstor Oscar Stanchi, Nilda Esther Radman, Eduardo Joaquín Parrado
BACKGROUND: Basic pathologic characteristics for farmed minks were previously reported worldwide. However, its status in the wild has not been studied in detail. OBJECTIVE: Serology and electrophoresis were carried out for evidence of exposure to 12 mink pathogens on two different locations. ANIMALS AND METHODS: Serology was done in 87 wild minks by reference techniques against Toxoplasma gondii, Encephalitozoon cuniculi, Neospora caninum, Brucella abortus, Mycobacterium bovis, Leptospira interrogans, canine distemper virus (CDV), canine adenovirus (CAV), canine parvovirus (CPV), rabies virus (RV), Influenza A virus (FLUAV) and Aleutian disease virus (ADV)...
December 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28634871/rabies-virus-co-localizes-with-early-rab5-and-late-rab7-endosomal-proteins-in-neuronal-and-sh-sy5y-cells
#11
Waqas Ahmad, Yingying Li, Yidi Guo, Xinyu Wang, Ming Duan, Zhenhong Guan, Zengshan Liu, Maolin Zhang
Rabies virus (RABV) is a highly neurotropic virus that follows clathrin-mediated endocytosis and pH-dependent pathway for trafficking and invasion into endothelial cells. Early (Rab5, EEA1) and late (Rab7, LAMP1) endosomal proteins play critical roles in endosomal sorting, maturity and targeting various molecular cargoes, but their precise functions in the early stage of RABV neuronal infection remain elusive. In this study, the relationship between enigmatic entry of RABV with these endosomal proteins into neuronal and SH-SY5Y cells was investigated...
June 16, 2017: Virologica Sinica
https://www.readbyqxmd.com/read/28628617/comparative-analysis-of-european-bat-lyssavirus-1-pathogenicity-in-the-mouse-model
#12
Elisa Eggerbauer, Florian Pfaff, Stefan Finke, Dirk Höper, Martin Beer, Thomas C Mettenleiter, Tobias Nolden, Jens-Peter Teifke, Thomas Müller, Conrad M Freuling
European bat lyssavirus 1 is responsible for most bat rabies cases in Europe. Although EBLV-1 isolates display a high degree of sequence identity, different sublineages exist. In individual isolates various insertions and deletions have been identified, with unknown impact on viral replication and pathogenicity. In order to assess whether different genetic features of EBLV-1 isolates correlate with phenotypic changes, different EBLV-1 variants were compared for pathogenicity in the mouse model. Groups of three mice were infected intracranially (i...
June 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28627433/comparison-of-g-protein-sequences-of-south-african-street-rabies-viruses-showing-distinct-progression-of-the-disease-in-a-mouse-model-of-experimental-rabies
#13
Wonhyo Seo, Alexandre Servat, Florence Cliquet, Jenkins Akinbowale, Christophe Prehaud, Monique Lafon, Claude Sabeta
Rabies is a fatal zoonotic disease and infections generally lead to a fatal encephalomyelitis in both humans and animals. In South Africa, domestic (dogs) and the wildlife (yellow mongoose) host species maintain the canid and mongoose rabies variants respectively. In this study, pathogenicity differences of South African canid and mongoose rabies viruses were investigated in a murine model, by assessing the progression of clinical signs and survivorship. Comparison of glycoprotein gene sequences revealed amino acid differences that may underpin the observed pathogenicity differences...
June 13, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28626749/a-century-spent-combating-rabies-in-morocco-1911-2015-how-much-longer
#14
Sami Darkaoui, Florence Cliquet, Marine Wasniewski, Emmanuelle Robardet, Nadia Aboulfidaa, Mohammed Bouslikhane, Ouafaa Fassi-Fihri
Rabies has no known beginning in Morocco and to date, government control efforts and plans fail to eradicate the disease. A review and analysis of available epidemiological data are crucial to learn lessons from the past and to propose effective actions. Legally, animal rabies is a notifiable disease since 1913 and legislation has been updated periodically since. Dogs have always been considered as both the disease's vector and reservoir, while cattle, other herbivores, and humans are victims. Animal rabies cases evolution from 1942 to 2015 is characterized by ascending phase then decreasing one following structured rabies control plan implementation in 1980s...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28624203/exosome-mediated-delivery-of-mir-124-promotes-neurogenesis-after-ischemia
#15
Jialei Yang, Xiufen Zhang, Xiangjie Chen, Lei Wang, Guodong Yang
The intrinsic ability of neurogenesis after stroke has been proven weak, which results in insufficient repair of injury in the nerve system. Recent studies suggest multiple microRNAs (miRNAs) are involved in the neuroremodeling process. Targeted miRNAs delivery for amplification of neurogenesis is promising in promoting the prognosis after ischemia. Here, we showed that modified exosomes, with rabies virus glycoprotein (RVG) fused to exosomal protein lysosome-associated membrane glycoprotein 2b (Lamp2b), could efficiently deliver miR-124 to the infarct site...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28622789/characterization-of-the-epidemiology-of-bat-borne-rabies-in-chile-between-2003-and-2013
#16
Raul Alegria-Moran, Daniela Miranda, Matt Barnard, Alonso Parra, Lisette Lapierre
Rabies is a zoonotic disease of great impact to public health. According to the World Health Organization, the country of Chile is currently declared free from human rabies transmitted by dogs. An epidemiological characterization and description was conducted using rabies data from 2003 to 2013 held by the National Program for Prevention and Control of Rabies from the Ministry of Health, consisting of bats samples reported as suspect and samples taken by active surveillance (bats brain tissue). Spatial autocorrelation analysis was performed using Local Indicators of Spatial Association (LISA) statistics, particularly Moran's I index, for the detection of spatial clusters...
August 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28619678/april-taci-axis-is-dispensable-for-the-immune-response-to-rabies-vaccination
#17
Shannon L Haley, Evgeni P Tzvetkov, Andrew G Lytle, Kishore R Alugupalli, Joseph R Plummer, James P McGettigan
There is significant need to develop a single-dose rabies vaccine to replace the current multi-dose rabies vaccine regimen and eliminate the requirement for rabies immune globulin in post-exposure settings. To accomplish this goal, rabies virus (RABV)-based vaccines must rapidly activate B cells to secrete antibodies which neutralize pathogenic RABV before it enters the CNS. Increased understanding of how B cells effectively respond to RABV-based vaccines may improve efforts to simplify post-exposure prophylaxis (PEP) regimens...
June 12, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28618779/photofragmentation-of-tetranitromethane-spin-unrestricted-time-dependent-excited-state-molecular-dynamics
#18
Yulun Han, Bakhtiyor Rasulev, Dmitri S Kilin
In this study, the photofragmentation dynamics of tetranitromethane (TNM) is explored by a spin-unrestricted time-dependent excited-state molecular dynamics (u-TDESMD) algorithm based on Rabi oscillations and principles similar to trajectory surface hopping, with a mid-intensity field approximation. The leading order process is represented by the molecule undergoing cyclic excitations and de-excitations. During excitation cycles, the nuclear kinetic energy is accumulated to overcome the dissociation barriers in the reactant and a sequence of intermediates...
June 16, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28618756/rational-design-of-rabies-vaccine-formulation-for-enhanced-stability
#19
Veysel Kayser, Alain Françon, Hervé Pinton, Jean-François Saluzzo, Bernhardt L Trout
BACKGROUND/AIM: Vaccines are often lyophilized in order to retain their stability and efficacy for a longer period of time. However, the same lyophilization process may also cause a major degradation of the vaccine, especially during early phases of manufacturing, leading to a loss of potency of the product. Many viral diseases, such as rabies, are acute and fatal unless the vaccine is administered prior to exposure or the onset of symptoms in the case of postexposure treatment. MATERIALS AND METHODS: We investigated the effect of lyophilization on the stability of the virus structure during rabies vaccine manufacturing using dynamic light scattering and transmission electron microscopy...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28615249/reduction-in-podocyte-sirt1-accelerates-kidney-injury-in-aging-mice
#20
Peter Y Chuang, Weijing Cai, Xuezhu Li, Lu Fang, Jin Xu, Rabi Yacoub, John Cijiang He, Kyung Lee
Both the incidence and prevalence of chronic kidney disease are increasing in the elderly population. Although aging is known to induce kidney injury, the underlying molecular mechanisms remain unclear. Sirtuin 1 (Sirt1), a longevity gene, is known to protect kidney cell injury from various cellular stresses. In previous studies, we showed that the podocyte-specific loss of Sirt1 aggravates diabetic kidney injury. However, the role of Sirt1 in aging-induced podocyte injury is not known. Therefore, in this study we sought to determine the effects of podocyte-specific reduction of Sirt1 in age-induced kidney injury...
June 14, 2017: American Journal of Physiology. Renal Physiology
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