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https://www.readbyqxmd.com/read/28636633/playing-with-fire-what-is-influencing-horse-owners-decisions-to-not-vaccinate-their-horses-against-deadly-hendra-virus-infection
#1
Kailiea Arianna Goyen, John David Wright, Alexandra Cunneen, Joerg Henning
Hendra virus is a zoonotic paramyxovirus, which causes severe respiratory and neurological disease in horses and humans. Since 2012, the Hendra virus sub-unit G vaccine has been available for horse vaccination in Australia. Uptake of the vaccine has been limited and spill-over events of Hendra virus infection in horses continue to occur. We conducted an online, questionnaire-based cross-sectional study of 376 horse owners belonging to a variety of different equestrian clubs in Queensland, Australia, to identify risk factors for non-vaccination against Hendra virus...
2017: PloS One
https://www.readbyqxmd.com/read/28629988/4-azidocytidine-r1479-inhibits-henipaviruses-and-other-paramyxoviruses-with-high-potency
#2
Anne L Hotard, Biao He, Stuart T Nichol, Christina F Spiropoulou, Michael K Lo
The henipaviruses Nipah virus and Hendra virus are highly pathogenic zoonotic paramyxoviruses which have caused fatal outbreaks of encephalitis and respiratory disease in humans. Despite the availability of a licensed equine Hendra virus vaccine and a neutralizing monoclonal antibody shown to be efficacious against henipavirus infections in non-human primates, there remains no approved therapeutics or vaccines for human use. To explore the possibility of developing small-molecule nucleoside inhibitors against henipaviruses, we evaluated the antiviral activity of 4'-azidocytidine (R1479), a drug previously identified to inhibit flaviviruses, against henipaviruses along with other representative members of the family Paramyxoviridae...
June 17, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28616484/climatic-suitability-influences-species-specific-abundance-patterns-of-australian-flying-foxes-and-risk-of-hendra-virus-spillover
#3
Gerardo A Martin, Carlos Yanez-Arenas, Billie J Roberts, Carla Chen, Raina K Plowright, Rebecca J Webb, Lee F Skerratt
Hendra virus is a paramyxovirus of Australian flying fox bats. It was first detected in August 1994, after the death of 20 horses and one human. Since then it has occurred regularly within a portion of the geographical distribution of all Australian flying fox (fruit bat) species. There is, however, little understanding about which species are most likely responsible for spillover, or why spillover does not occur in other areas occupied by reservoir and spillover hosts. Using ecological niche models of the four flying fox species we were able to identify which species are most likely linked to spillover events using the concept of distance to the niche centroid of each species...
December 2016: One Health
https://www.readbyqxmd.com/read/28601688/structure-and-organization-of-paramyxovirus-particles
#4
REVIEW
Robert M Cox, Richard K Plemper
The paramyxovirus family comprises major human and animal pathogens such as measles virus (MeV), mumps virus (MuV), the parainfluenzaviruses, Newcastle disease virus (NDV), and the highly pathogenic zoonotic hendra (HeV) and nipah (NiV) viruses. Paramyxovirus particles are pleomorphic, with a lipid envelope, nonsegmented RNA genomes of negative polarity, and densely packed glycoproteins on the virion surface. A number of crystal structures of different paramyxovirus proteins and protein fragments were solved, but the available information concerning overall virion organization remains limited...
June 8, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28600653/how-order-and-disorder-within-paramyxoviral-nucleoproteins-and-phosphoproteins-orchestrate-the-molecular-interplay-of-transcription-and-replication
#5
REVIEW
Sonia Longhi, Louis-Marie Bloyet, Stefano Gianni, Denis Gerlier
In this review, we summarize computational and experimental data gathered so far showing that structural disorder is abundant within paramyxoviral nucleoproteins (N) and phosphoproteins (P). In particular, we focus on measles, Nipah, and Hendra viruses and highlight both commonalities and differences with respect to the closely related Sendai virus. The molecular mechanisms that control the disorder-to-order transition undergone by the intrinsically disordered C-terminal domain (NTAIL) of their N proteins upon binding to the C-terminal X domain (XD) of the homologous P proteins are described in detail...
June 9, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28559814/the-rare-case-of-pemphigus-vegetans-in-association-with-malnutrition-children-in-the-multidisciplinary-management
#6
Oki Suwarsa, Endang Sutedja, Hartati Purbo Dharmadji, Pramita Kusuma, July Rahardja, Reti Hindritiani, Hendra Gunawan
Pemphigus vegetans is a clinical variant of pemphigus vulgaris, accounting for 1-2% of all very rare pemphigus cases in children. The involvement of the oral mucosa in this disease is usually accompanied by severe pain that aggravates the patient's malnourished condition. Conversely, malnutrition may also reduce vulnerability towards autoimmune diseases. Although pemphigus vegetans has never been reported to develop in a child with marasmus before, we encountered a case of pemphigus vegetans in a severely malnourished patient...
January 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28553176/metabolic-activity-value-in-the-posterior-cingulate-cortex-using-f-18-fluorodeoxyglucose-positron-emission-tomography-brain-to-predict-the-severity-of-alzheimer-s
#7
Aulia Huda, Achmad Hussein Sundawa Kartamihardja, Budi Darmawan, Hendra Budiawan, Martina Wiwie
Alzheimer's disease (AD) is a type of dementia which is known as one of a major problem in elderly. Clinicians commonly use mini-mental state examination (MMSE) score to determine the severity of cognitive decline, but MMSE has some limitations such as more subjective, influenced by age, educational degree, and local culture. F-18 fluorodeoxyglucose positron emission tomography (F-18 FDG PET) can be used to assess the process of glucose metabolism in posterior cingulate cortex (PCC) area which endures a central role in supporting cognitive function directly...
April 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28468881/mutations-in-the-transmembrane-domain-and-cytoplasmic-tail-of-hendra-virus-fusion-protein-disrupt-virus-like-particle-assembly
#8
Nicolás Cifuentes-Muñoz, Weina Sun, Greeshma Ray, Phuong Tieu Schmitt, Stacy Webb, Kathleen Gibson, Rebecca Ellis Dutch, Anthony P Schmitt
Hendra virus (HeV) is a zoonotic paramyxovirus that causes deadly illness in horses and humans. An intriguing feature of HeV is the utilization of endosomal protease for activation of the viral fusion protein (F). Here, we investigated how F endosomal trafficking impacts HeV assembly. We found that HeV matrix (M) and F proteins each induced particle release when expressed alone, but their co-expression led to coordinated assembly of virus-like particles (VLPs) that were morphologically and physically distinct from M-alone or F-alone VLPs...
May 3, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28460752/-we-ve-learned-to-live-with-it-a-qualitative-study-of-australian-horse-owners-attitudes-perceptions-and-practices-in-response-to-hendra-virus
#9
Anke K Wiethoelter, Kate Sawford, Nicole Schembri, Melanie R Taylor, Navneet K Dhand, Barbara Moloney, Therese Wright, Nina Kung, Hume E Field, Jenny-Ann L M L Toribio
Hendra virus causes sporadic zoonotic disease in Australia following spill over from flying foxes to horses and from horses to people. Prevention and risk mitigation strategies such as vaccination of horses or biosecurity and property management measures are widely publicised, but hinge on initiative and action taken by horse owners as they mediate management, care and treatment of their animals. Hence, underlying beliefs, values and attitudes of horse owners influence their uptake of recommended risk mitigation measures...
May 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28446155/erratum-to-higher-serum-betatrophin-level-in-type-2-diabetes-subjects-is-associated-with-urinary-albumin-excretion-and-renal-function
#10
Chang-Chiang Chen, Hendra Susanto, Wen-Han Chuang, Ta-Yu Liu, Arivajiagane Arundhathi, Chih-Hong Wang
No abstract text is available yet for this article.
April 26, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28433050/zoonotic-potential-of-emerging-paramyxoviruses-knowns-and-unknowns
#11
Patricia A Thibault, Ruth E Watkinson, Andres Moreira-Soto, Jan F Drexler, Benhur Lee
The risk of spillover of enzootic paramyxoviruses and the susceptibility of recipient human and domestic animal populations are defined by a broad collection of ecological and molecular factors that interact in ways that are not yet fully understood. Nipah and Hendra viruses were the first highly lethal zoonotic paramyxoviruses discovered in modern times, but other paramyxoviruses from multiple genera are present in bats and other reservoirs that have unknown potential to spillover into humans. We outline our current understanding of paramyxovirus reservoir hosts and the ecological factors that may drive spillover, and we explore the molecular barriers to spillover that emergent paramyxoviruses may encounter...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28407738/-why-won-t-they-just-vaccinate-horse-owner-risk-perception-and-uptake-of-the-hendra-virus-vaccine
#12
J Manyweathers, H Field, N Longnecker, K Agho, C Smith, M Taylor
BACKGROUND: Hendra virus is a paramyxovirus that causes periodic serious disease and fatalities in horses and humans in Australia first identified in 1994. Pteropid bats (commonly known as flying-foxes) are the natural host of the virus, and the putative route of infection in horses is by ingestion or inhalation of material contaminated by flying-fox urine or other bodily fluids. Humans become infected after close contact with infected horses. Horse owners in Australia are encouraged to vaccinate their horses against Hendra virus to reduce the risk of Hendra virus infection, and to prevent potential transmission to humans...
April 13, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28381569/group-a-rotaviruses-in-chinese-bats-genetic-composition-serology-and-evidence-for-bat-to-human-transmission-and-reassortment
#13
Biao He, Xiaohong Huang, Fuqiang Zhang, Weilong Tan, Jelle Matthijnssens, Shaomin Qin, Lin Xu, Zihan Zhao, Ling'en Yang, Quanxi Wang, Tingsong Hu, Xiaolei Bao, Jianmin Wu, Changchun Tu
Bats are natural reservoirs for many pathogenic viruses and increasing evidence supports that bats can also harbor group A rotaviruses (RVA), important causative agents of diarrhea in children and young animals. Currently, 8 RVA strains have been identified from African and Chinese bats, possessing completely novel genotype constellations or genotypes possibly originating from other mammals. However, all these data were mainly based on detection of RVA RNA, only present during acute infections, which does not permit assessment of the true exposure of a bat population to RVA...
April 5, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28214468/difficulties-experienced-by-veterinarians-when-communicating-about-emerging-zoonotic-risks-with-animal-owners-the-case-of-hendra-virus
#14
Diana H Mendez, Petra Büttner, Jenny Kelly, Madeleine Nowak, Rick Speare Posthumously
BACKGROUND: Communication skills are essential for veterinarians who need to discuss animal health related matters with their clients. When dealing with an emerging zoonosis, such as Hendra virus (HeV), veterinarians also have a legal responsibility to inform their clients about the associated risks to human health. Here we report on part of a mixed methods study that examined the preparedness of, and difficulties experienced by, veterinarians communicating about HeV-related risks with their clients...
February 18, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28213515/hendra-virus-fusion-protein-transmembrane-domain-contributes-to-pre-fusion-protein-stability
#15
Stacy Webb, Tamas Nagy, Hunter Moseley, Michael Fried, Rebecca Dutch
Enveloped viruses utilize fusion (F) proteins studding the surface of the virus to facilitate membrane fusion with a target cell membrane. Fusion of the viral envelope with a cellular membrane is required for release of viral genomic material, so the virus can ultimately reproduce and spread. To drive fusion, the F protein undergoes an irreversible conformational change, transitioning from a metastable pre-fusion conformation to a more thermodynamically stable post-fusion structure. Understanding the elements that control stability of the pre-fusion state and triggering to the post-fusion conformation is important for understanding F protein function...
April 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28176536/kinase-targets-in-cns-drug-discovery
#16
Hendra Gunosewoyo, Lifang Yu, Lenka Munoz, Michael Kassiou
Originally thought to be nondruggable, kinases represent attractive drug targets for pharmaceutical companies and academia. To date, there are over 40 kinase inhibitors approved by the US FDA, with 32 of these being small molecules, in addition to the three mammalian target of rapamycin inhibitor macrolides (sirolimus, temsirolimus and everolimus). Despite the rapid development of kinase inhibitors for cancer, presently none of these agents are approved for CNS indications. This mini perspective highlights selected kinase targets for CNS disorders, of which brain-permeable small-molecule inhibitors are reported, with demonstrated preclinical proof-of-concept efficacy...
March 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/28124421/in-this-issue-january-february-2017-experimental-hendra-virus-infection-of-dogs%C3%A2-%C3%A2-%C3%A2-brucella-suis-in-dogs%C3%A2-%C3%A2-%C3%A2-cytokines-in-stored-packed-red-blood-cells%C3%A2-%C3%A2-%C3%A2-transitional-lumbosacral-vertebrae-in-labradors%C3%A2-%C3%A2-%C3%A2-chemotherapy-for-histiocytic-sarcomas%C3%A2-%C3%A2-%C3%A2-pyothorax
#17
EDITORIAL
https://www.readbyqxmd.com/read/28124415/experimental-hendra-virus-infection-of-dogs-virus-replication-shedding-and-potential-for-transmission
#18
D J Middleton, S Riddell, R Klein, R Arkinstall, J Haining, L Frazer, C Mottley, R Evans, D Johnson, J Pallister
OBJECTIVE: Characterisation of experimental Hendra virus (HeV) infection in dogs and assessment of associated transmission risk. METHODS: Beagle dogs were exposed oronasally to Hendra virus/Australia/Horse/2008/Redlands or to blood collected from HeV-infected ferrets. Ferrets were exposed to oral fluids collected from dogs after canine exposure to HeV. Observations made and samples tested post-exposure were used to assess the clinical course and replication sites of HeV in dogs, the infectivity for ferrets of canine oral fluids and features of HeV infection in dogs following contact with infective blood...
January 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28111388/antibacterial-efficacy-of-triple-layered-poly-lactic-co-glycolic-acid-nanoapatite-lauric-acid-guided-bone-regeneration-membrane-on-periodontal-bacteria
#19
Nur Najiha Saarani, Kalitheerta Jamuna-Thevi, Neelam Shahab, Hendra Hermawan, Syafiqah Saidin
A guided bone regeneration (GBR) membrane has been extensively used in the repair and regeneration of damaged periodontal tissues. One of the main challenges of GBR restoration is bacterial colonization on the membrane, constitutes to premature membrane degradation. Therefore, the purpose of this study was to investigate the antibacterial efficacy of triple-layered GBR membrane composed of poly(lactic-co-glycolic acid) (PLGA), nanoapatite (NAp) and lauric acid (LA) with two types of Gram-negative periodontal bacteria, Fusobacterium nucleatum and Porphyromonas gingivalis through a disc diffusion and bacterial count tests...
January 20, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28091706/microclimates-might-limit-indirect-spillover-of-the-bat-borne-zoonotic-hendra-virus
#20
Gerardo Martin, Rebecca J Webb, Carla Chen, Raina K Plowright, Lee F Skerratt
Infectious diseases are transmitted when susceptible hosts are exposed to pathogen particles that can replicate within them. Among factors that limit transmission, the environment is particularly important for indirectly transmitted parasites. To try and assess a pathogens' ability to be transmitted through the environment and mitigate risk, we need to quantify its decay where transmission occurs in space such as the microclimate harbouring the pathogen. Hendra virus, a Henipavirus from Australian Pteropid bats, spills-over to horses and humans, causing high mortality...
January 14, 2017: Microbial Ecology
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