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https://www.readbyqxmd.com/read/28854792/large-protein-as-a-potential-target-for-use-in-rabies-diagnostics
#1
I S Santos Katz, M H Dias, I F Lima, L B Chaves, O G Ribeiro, K C Scheffer, L K Iwai
Rabies is a zoonotic viral disease that remains a serious threat to public health worldwide. The rabies lyssavirus (RABV) genome encodes five structural proteins, multifunctional and significant for pathogenicity. The large protein (L) presents well-conserved genomic regions, which may be a good alternative to generate informative datasets for development of new methods for rabies diagnosis. This paper describes the development of a technique for the identification of L protein in several RABV strains from different hosts, demonstrating that MS-based proteomics is a potential method for antigen identification and a good alternative for rabies diagnosis...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28841446/the-phenotype-of-the-rabv-glycoprotein-determines-cellular-and-global-virus-load-in-the-brain-and-is-decisive-for-the-pace-of-the-disease
#2
M A R Bertoune, B Nickl, T Krieger, L Wohlers, G A Bonaterra, B Dietzschold, E Weihe, M Bette
The Rabies lyssavirus glycoprotein (RABV-G) is largely responsible for the neuroinvasiveness of the virus and the induction of antiviral immune responses. To study the effects of RABV-G we compared the G of the attenuated RABV variant SPBN with that of the pathogenic DOG4 strain. Infection via the olfactory route caused 100% mortality in mice with both virus variants. Of note, with the attenuated SPBN, progression of the disease was accelerated, microglia response less pronounced and IL-6 expression higher than in the presence of RABV-G from the pathogenic DOG4...
August 22, 2017: Virology
https://www.readbyqxmd.com/read/28768857/molecular-function-analysis-of-rabies-virus-rna-polymerase-l-protein-by-using-an-l-gene-deficient-virus
#3
Kento Nakagawa, Yuki Kobayashi, Naoto Ito, Yoshiyuki Suzuki, Kazuma Okada, Machiko Makino, Hideo Goto, Tatsuki Takahashi, Makoto Sugiyama
While the RNA-dependent RNA polymerase L protein of rabies virus (RABV), a member of the genus Lyssavirus of the family Rhabdoviridae, has potential to be a therapeutic target for rabies, the molecular functions of this protein have remained largely unknown. In this study, to obtain a novel experimental tool for molecular function analysis of the RABV L protein, we established by using a reverse genetics approach an L gene-deficient RABV (Nishi-ΔL/Nluc), which infects, propagates and correspondingly produces NanoLuc luciferase in cultured neuroblastoma cells [20013240291] transfected to express the L protein...
August 2, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28737119/passive-surveillance-of-united-kingdom-bats-for-lyssaviruses-2005-2015
#4
E L Wise, D A Marston, A C Banyard, H Goharriz, D Selden, N Maclaren, T Goddard, N Johnson, L M McElhinney, A Brouwer, J N Aegerter, G C Smith, D L Horton, A C Breed, A R Fooks
Passive surveillance for lyssaviruses in UK bats has been ongoing since 1987 and has identified 13 cases of EBLV-2 from a single species; Myotis daubentonii. No other lyssavirus species has been detected. Between 2005 and 2015, 10 656 bats were submitted, representing 18 species, creating a spatially and temporally uneven sample of British bat fauna. Uniquely, three UK cases originate from a roost at Stokesay Castle in Shropshire, England, where daily checks for grounded and dead bats are undertaken and bat carcasses have been submitted for testing since 2007...
September 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28730326/infectious-diseases-causing-autonomic-dysfunction
#5
REVIEW
Francisco Javier Carod Artal
OBJECTIVES: To review infectious diseases that may cause autonomic dysfunction. METHODS: Review of published papers indexed in medline/embase. RESULTS: Autonomic dysfunction has been reported in retrovirus (human immunodeficiency virus (HIV), human T-lymphotropic virus), herpes viruses, flavivirus, enterovirus 71 and lyssavirus infections. Autonomic dysfunction is relatively common in HIV-infected patients and heart rate variability is reduced even in early stages of infection...
July 20, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28710271/novel-alphacoronaviruses-and-paramyxoviruses-cocirculate-with-type-1-and-severe-acute-respiratory-system-sars-related-betacoronaviruses-in-synanthropic-bats-of-luxembourg
#6
Maude Pauly, Jacques B Pir, Catherine Loesch, Aurélie Sausy, Chantal J Snoeck, Judith M Hübschen, Claude P Muller
Several infectious disease outbreaks with high mortality in humans have been attributed to viruses that are thought to have evolved from bat viruses. In this study from Luxembourg, the genetic diversity and epidemiology of paramyxoviruses and coronaviruses shed by the bat species Rhinolophus ferrumequinum and Myotis emarginatus were evaluated. Feces collection (n = 624) was performed longitudinally in a mixed-species colony in 2015 and 2016. In addition, feces (n = 254) were collected cross-sectionally from six Myotis emarginatus colonies in 2016...
September 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28693578/first-detection-of-european-bat-lyssavirus-type-2-eblv-2-in-norway
#7
Torfinn Moldal, Turid Vikøren, Florence Cliquet, Denise A Marston, Jeroen van der Kooij, Knut Madslien, Irene Ørpetveit
BACKGROUND: In Europe, bat rabies is primarily attributed to European bat lyssavirus type 1 (EBLV-1) and European bat lyssavirus type 2 (EBLV-2) which are both strongly host-specific. Approximately thirty cases of infection with EBLV-2 in Daubenton's bats (Myotis daubentonii) and pond bats (M. dasycneme) have been reported. Two human cases of rabies caused by EBLV-2 have also been confirmed during the last thirty years, while natural spill-over to other non-flying mammals has never been reported...
July 11, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28681345/lyssavirus-phosphoproteins-increase-mitochondrial-complex-i-activity-and-levels-of-reactive-oxygen-species
#8
Wafa Kammouni, Heidi Wood, Alan C Jackson
We have previously demonstrated that serine residues at positions 162 and 166 of the rabies virus (RABV) phosphoprotein (P) are critical for oxidative stress induced by CVS in cultured cells. We have now evaluated the P of two street RABV variants and Mokola (MOK) virus. The P of these viruses, like CVS, induces an increase in complex I activities and reactive oxygen species levels in transfected cells. Although the sequence homology of P is only 45% with MOK (higher for street viruses) and CVS, serine residues are conserved at positions 162 and 166, suggesting their potential importance in oxidative stress...
July 5, 2017: Journal of Neurovirology
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
#9
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/28628617/comparative-analysis-of-european-bat-lyssavirus-1-pathogenicity-in-the-mouse-model
#10
COMPARATIVE STUDY
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 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28385500/successful-strategies-implemented-towards-the-elimination-of-canine-rabies-in-the-western-hemisphere
#11
REVIEW
Andres Velasco-Villa, Luis E Escobar, Anthony Sanchez, Mang Shi, Daniel G Streicker, Nadia F Gallardo-Romero, Fernando Vargas-Pino, Veronica Gutierrez-Cedillo, Inger Damon, Ginny Emerson
Almost all cases of human rabies result from dog bites, making the elimination of canine rabies a global priority. During recent decades, many countries in the Western Hemisphere have carried out large-scale dog vaccination campaigns, controlled their free-ranging dog populations and enforced legislation for responsible pet ownership. This article reviews progress in eliminating canine rabies from the Western Hemisphere. After briefly summarizing the history of control efforts and describing the approaches listed above, we note that programs in some countries have been hindered by societal attitudes and severe economic disparities, which underlines the need to discuss measures that will be required to complete the elimination of canine rabies throughout the region...
July 2017: Antiviral Research
https://www.readbyqxmd.com/read/28365457/the-history-of-rabies-in-the-western-hemisphere
#12
REVIEW
Andres Velasco-Villa, Matthew R Mauldin, Mang Shi, Luis E Escobar, Nadia F Gallardo-Romero, Inger Damon, Victoria A Olson, Daniel G Streicker, Ginny Emerson
Before the introduction of control programs in the 20th century, rabies in domestic dogs occurred throughout the Western Hemisphere. However, historical records and phylogenetic analysis of multiple virus isolates indicate that, before the arrival of the first European colonizers, rabies virus was likely present only in bats and skunks. Canine rabies was either rare or absent among domestic dogs of Native Americans, and first arrived when many new dog breeds were imported during the period of European colonization...
March 29, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28342196/a-dna-logic-gate-automaton-for-detection-of-rabies-and-other-lyssaviruses
#13
Pavithra Vijayakumar, Joanne Macdonald
Immediate activation of biosensors is not always desirable, particularly if activation is due to non-specific interactions. Here we demonstrate the use of deoxyribozyme-based logic gate networks arranged into visual displays to precisely control activation of biosensors, and demonstrate a prototype molecular automaton able to discriminate between seven different genotypes of Lyssaviruses, including Rabies virus. The device uses novel mixed-base logic gates to enable detection of the large diversity of Lyssavirus sequence populations, while an ANDNOT logic gate prevents non-specific activation across genotypes...
March 25, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28318148/barriers-to-innovation-in-human-rabies-prophylaxis-and-treatment-a-causal-analysis-of-insights-from-key-opinion-leaders-and-literature
#14
L H M van de Burgwal, A M G Neevel, C A C M Pittens, A D M E Osterhaus, C E Rupprecht, E Claassen
Rabies is an essentially 100% fatal, zoonotic disease, caused by Lyssaviruses. Currently, the disease is vaccine-preventable with pre- and post-exposure prophylaxis (PrEP and PEP). Still, rabies virus is estimated to cause up to 60,000 human deaths annually, of which the vast majority occurs in rural Asia and Africa, due to the inaccessibility of prophylaxis and non-existence of treatment. Despite these unmet clinical needs, rabies control mainly focuses on the sylvatic reservoir and drug innovation receives relatively little attention compared to other neglected tropical diseases (NTDs)...
March 20, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28299201/lyssaviruses-and-rabies-current-conundrums-concerns-contradictions-and-controversies
#15
REVIEW
Charles Rupprecht, Ivan Kuzmin, Francois Meslin
Lyssaviruses are bullet-shaped, single-stranded, negative-sense RNA viruses and the causative agents of the ancient zoonosis rabies. Africa is the likely home to the ancestors of taxa residing within the Genus Lyssavirus, Family Rhabdoviridae. Diverse lyssaviruses are envisioned as co-evolving with bats, as the ultimate reservoirs, over seemingly millions of years. In terms of relative distribution, overt abundance, and resulting progeny, rabies virus is the most successful lyssavirus species today, but for unknown reasons...
2017: F1000Research
https://www.readbyqxmd.com/read/28228179/serological-evidence-of-lyssavirus-infection-among-bats-in-nagaland-a-north-eastern-state-in-india
#16
R S Mani, D P Dovih, M A Ashwini, B Chattopadhyay, P K Harsha, K M Garg, S Sudarshan, R Puttaswamaiah, U Ramakrishnan, S N Madhusudana
Bats are known to be reservoirs of several medically important viruses including lyssaviruses. However, no systematic surveillance for bat rabies has been carried out in India, a canine rabies endemic country with a high burden of human rabies. Surveillance for rabies virus (RABV) infection in bats was therefore carried out in Nagaland, a north-eastern state in India at sites with intense human-bat interfaces during traditional bat harvests. Brain tissues and sera from bats were tested for evidence of infection due to RABV...
June 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28151079/exposure-to-lyssaviruses-in-bats-of-the-democratic-republic-of-the-congo
#17
Lem's N Kalemba, Michael Niezgoda, Amy T Gilbert, Jeffrey B Doty, Ryan M Wallace, Jean M Malekani, Darin S Carroll
Lyssavirus infections in the Democratic Republic of Congo are poorly documented. We examined 218 bats. No lyssavirus antigens were detected but Lagos bat virus (LBV) neutralizing antibodies (VNA) were detected in Eidolon helvum and Myonycteris torquata . Four samples with LBV VNA reacted against Shimoni bat virus.
April 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28143485/new-isolations-of-the-rabies-related-mokola-virus-from-south-africa
#18
Jessica Coertse, Wanda Markotter, Kevin le Roux, Daniel Stewart, Claude T Sabeta, Louis H Nel
BACKGROUND: Mokola virus (MOKV) is a rabies-related lyssavirus and appears to be exclusive to the African continent. Only 24 cases of MOKV, which includes two human cases, have been reported since its identification in 1968. MOKV has an unknown reservoir host and current commercial vaccines do not confer protection against MOKV. RESULTS: We describe three new isolations of MOKV from domestic cats in South Africa. Two cases were retrospectively identified from 2012 and an additional one in 2014...
January 31, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28122983/innate-immune-responses-of-bat-and-human-cells-to-filoviruses-commonalities-and-distinctions
#19
Ivan V Kuzmin, Toni M Schwarz, Philipp A Ilinykh, Ingo Jordan, Thomas G Ksiazek, Ravi Sachidanandam, Christopher F Basler, Alexander Bukreyev
Marburg (MARV) and Ebola (EBOV) viruses are zoonotic pathogens that cause severe hemorrhagic fever in humans. The natural reservoir of MARV is the Egyptian rousette bat (Rousettus aegyptiacus); that of EBOV is unknown but believed to be another bat species. The Egyptian rousette develops subclinical productive infection with MARV but is refractory to EBOV. Interaction of filoviruses with hosts is greatly affected by the viral interferon (IFN)-inhibiting domains (IID). Our study was aimed at characterization of innate immune responses to filoviruses and the role of filovirus IID in bat and human cells...
April 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28081126/a-pan-lyssavirus-taqman-real-time-rt-pcr-assay-for-the-detection-of-highly-variable-rabies-virus-and-other-lyssaviruses
#20
Ashutosh Wadhwa, Kimberly Wilkins, Jinxin Gao, Rene Edgar Condori Condori, Crystal M Gigante, Hui Zhao, Xiaoyue Ma, James A Ellison, Lauren Greenberg, Andres Velasco-Villa, Lillian Orciari, Yu Li
Rabies, resulting from infection by Rabies virus (RABV) and related lyssaviruses, is one of the most deadly zoonotic diseases and is responsible for up to 70,000 estimated human deaths worldwide each year. Rapid and accurate laboratory diagnosis of rabies is essential for timely administration of post-exposure prophylaxis in humans and control of the disease in animals. Currently, only the direct fluorescent antibody (DFA) test is recommended for routine rabies diagnosis. Reverse-transcription polymerase chain reaction (RT-PCR) based diagnostic methods have been widely adapted for the diagnosis of other viral pathogens, but there is currently no widely accepted rapid real-time RT-PCR assay for the detection of all lyssaviruses...
January 2017: PLoS Neglected Tropical Diseases
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