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Viral conjunctivitis

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https://www.readbyqxmd.com/read/27912771/a-dna-vaccine-encoding-the-viral-hemorrhagic-septicemia-virus-genotype-ivb-glycoprotein-confers-protection-in-muskellunge-esox-masquinongy-rainbow-trout-oncorhynchus-mykiss-brown-trout-salmo-trutta-and-lake-trout-salvelinus-namaycush
#1
Isaac F Standish, Elena V Millard, Travis O Brenden, Mohamed Faisal
BACKGROUND: The viral hemorrhagic septicemia virus (VHSV) is one of the most serious fish pathogens. In 2003, a novel sublineage (genotype IVb) of this deadly virus emerged in the Great Lakes basin causing serious fish kills. We have previously demonstrated that a DNA plasmid (pcDNA), containing a cytomegalovirus (CMV) promoter and the viral hemorrhagic septicemia virus (VHSV) genotype IVb glycoprotein (G) gene insert (designated pVHSivb-G) confers moderate protection in muskellunge (Esox masquinongy), a highly susceptible species upon challenge...
December 2, 2016: Virology Journal
https://www.readbyqxmd.com/read/27903799/cxcr6-mediated-sivagmsab-entry-into-sabaeus-african-green-monkey-lymphocytes-implicates-widespread-use-of-non-ccr5-pathways-in-natural-host-infections
#2
Katherine S Wetzel, Yanjie Yi, Sarah T C Elliott, Dino Romero, Beatrice Jacquelin, Beatrice H Hahn, Michaela Muller-Trutwin, Cristian Apetrei, Ivona Pandrea, Ronald G Collman
: African green monkeys (AGM) and sooty mangabeys (SM) are well-studied natural hosts of SIV, which do not progress to AIDS when infected with their species-specific viruses. SIV natural hosts express very low levels of the canonical entry coreceptor CCR5, and recent studies have shown that CCR5 is dispensable for SIV infection of SM in vivo, and blocking CCR5 does not prevent ex vivo infection of PBMC from SM or vervet AGM. In both hosts, CXCR6 is an efficient entry pathway in vitro...
November 30, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27881644/suppression-of-adenovirus-replication-by-cardiotonic-steroids
#3
Filomena Grosso, Peter Stoilov, Clifford Lingwood, Martha Brown, Alan Cochrane
: The dependence of adenovirus on the host pre-RNA splicing machinery for expression of its complete genome, potentially makes it vulnerable to modulators of RNA splicing, such as digoxin and digitoxin. Both drugs reduced the yield of four adenoviruses (HAdV-A31, B35, C5 and a species D conjunctivitis isolate) by at least 2- 3 logs by affecting one or more steps needed for genome replication. Immediate early E1A protein levels are unaffected by the drugs, but synthesis of the delayed protein E4orf6 and the major late capsid protein, hexon, are compromised...
November 23, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27860224/reduced-angiogenic-gene-expression-in-morbillivirus-triggered-oncolysis-in-a-translational-model-for-histiocytic-sarcoma
#4
Vanessa Maria Pfankuche, Ingo Spitzbarth, Stefanie Lapp, Reiner Ulrich, Ulrich Deschl, Arno Kalkuhl, Wolfgang Baumgärtner, Christina Puff
Histiocytic sarcoma represents a rare malignant tumour with a short survival time, indicating the need of novel treatment strategies including oncolytic virotherapy. The underlying molecular mechanisms of viral oncolysis are largely unknown. As cancer in companion animals shares striking similarities with human counterparts, we chose a permanent canine histiocytic sarcoma cell line (DH82 cells) to identify global transcriptome changes following infection with canine distemper virus (CDV), a paramyxovirus closely related to human measles virus...
November 17, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27836657/functional-analysis-of-a-weak-viral-rna-silencing-suppressor-using-two-gfp-variants-as-silencing-inducers
#5
Krin S Mann, Ralf G Dietzgen
RNA silencing in plants can be triggered by the introduction of an exogenous gene. Green fluorescent protein (GFP) has been widely used as a visual reporter to study RNA silencing and viral-mediated suppression of RNA silencing in the model plant Nicotiana benthamiana. In transgenic N. benthamiana plants expressing an endoplasmic reticulum targeted GFP variant (16c) known as mGFP5, RNA silencing can be induced by ectopic over-expression of mGFP5. However, other GFP variants can also be used to induce GFP silencing in these plants...
January 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/27819256/long-term-stability-of-intracortical-recordings-using-perforated-and-arrayed-parylene-sheath-electrodes
#6
Seth A Hara, Brian J Kim, Jonathan T W Kuo, Curtis D Lee, Ellis Meng, Victor Pikov
OBJECTIVE: Acquisition of reliable and robust neural recordings with intracortical neural probes is a persistent challenge in the field of neuroprosthetics. We developed a multielectrode array technology to address chronic intracortical recording reliability and present in vivo recording results. APPROACH: The 2 × 2 Parylene sheath electrode array (PSEA) was microfabricated and constructed from only Parylene C and platinum. The probe includes a novel three-dimensional sheath structure, perforations, and bioactive coatings that improve tissue integration and manage immune response...
December 2016: Journal of Neural Engineering
https://www.readbyqxmd.com/read/27807229/evidence-that-hsc70-is-associated-with-cnv-particles-and-plays-a-role-in-cnv-particle-disassembly
#7
Syed Benazir Alam, D'Ann Rochon
: Uncoating of a virus particle to expose its nucleic acid is a critical aspect of the viral multiplication cycle as it is essential for the establishment of infection. In the present study, we investigated the role of plant HSP70 homologs in the uncoating process of Cucumber necrosis virus (CNV), a non-enveloped (+)ssRNA virus having a T=3 icosahedral capsid. We have found through Western blot analysis and mass spectrometry that the HSP70 homolog, Hsc70-2, copurifies with CNV particles...
November 2, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27806732/clinical-presentations-and-outcomes-of-patients-with-ebola-virus-disease-in-freetown-sierra-leone
#8
Ying-Jie Ji, Xue-Zhang Duan, Xu-Dong Gao, Lei Li, Chen Li, Dong Ji, Wen-Gang Li, Li-Fu Wang, Yu-Hua Meng, Xiao Yang, Bin-Fang Ling, Xue-Ai Song, Mei-Lei Gu, Tao Jiang, She-Ku M Koroma, James Bangalie, Hui-Juan Duan
BACKGROUND: Clinical and laboratory data were collected and analysed from patients with Ebola virus disease (EVD) in Jui Government Hospital in Freetown, Sierra Leone, where patients with EVD were received and/or treated from October 1, 2014 to March 21, 2015 during the West Africa EVD outbreak. METHODS: The study admitted 285 patients with confirmed EVD and followed them up till the endpoint (recovery or death). EVD was confirmed by quantitative RT-PCR assays detecting blood Ebola virus (EBOV)...
November 3, 2016: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/27788397/the-%C3%AE-catenin-signaling-pathway-stimulates-bovine-herpesvirus-1-productive-infection
#9
Liqian Zhu, Prasanth Thunuguntla, Yilin Liu, Morgan Hancock, Clinton Jones
Bovine herpes virus 1 (BoHV-1), an important bovine pathogen, causes conjunctivitis and disorders in the upper respiratory tract. Following acute infection, BoHV1 establishes life-long latency in sensory neurons. Recent studies demonstrated that viral gene products expressed in trigeminal ganglionic neurons during latency stabilize β-catenin levels, an important signaling molecule that interacts with a family of DNA binding proteins (T-cell factors) and subsequently stimulates transcription. In this study, we provide new evidence demonstrating that BoHV-1 transiently increased β-catenin protein levels in bovine kidney (CRIB) cells, but not in rabbit skin cells...
October 24, 2016: Virology
https://www.readbyqxmd.com/read/27754516/acute-hemorrhagic-conjunctivitis-epidemic-in-s%C3%A3-o-paulo-state-brazil-2011
#10
Norma H Medina, Emilio Haro-Muñoz, Alessandra Cristina Pellini, Braulio C Machado, Denise H Russo, Maria do Carmo Timenetsky, Rita de Cássia C Carmona
Acute hemorrhagic conjunctivitis (AHC) infection is highly contagious and can lead to explosive epidemics. In early February 2011, the Center for Epidemiologic Surveillance of the State of São Paulo Health Secretariat (SES-SP) in Brazil received reports of conjunctivitis outbreaks from rural areas of the state that subsequently spread statewide. This report describes that AHC epidemic and its etiologic agent. Data from the Ministry of Health Information System for Notifiable Diseases (SinanNet) and the SES-SP epidemiologic surveillance system for conjunctivitis, developed to detect outbreaks, confirm the etiologic agent, and carry out control measures, were analyzed...
February 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/27754341/the-immune-response-in-measles-virus-control-clearance-and-protective-immunity
#11
Diane E Griffin
Measles is an acute systemic viral infection with immune system interactions that play essential roles in multiple stages of infection and disease. Measles virus (MeV) infection does not induce type 1 interferons, but leads to production of cytokines and chemokines associated with nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB) signaling and activation of the NACHT, LRR and PYD domains-containing protein (NLRP3) inflammasome. This restricted response allows extensive virus replication and spread during a clinically silent latent period of 10-14 days...
October 12, 2016: Viruses
https://www.readbyqxmd.com/read/27707924/the-tetherin-antagonism-of-the-ebola-virus-glycoprotein-requires-an-intact-receptor-binding-domain-and-can-be-blocked-by-gp1-specific-antibodies
#12
Constantin Brinkmann, Inga Nehlmeier, Kerstin Walendy-Gnirß, Julia Nehls, Mariana González Hernández, Markus Hoffmann, Xiangguo Qiu, Ayato Takada, Michael Schindler, Stefan Pöhlmann
: The glycoprotein of Ebola virus (EBOV GP), a member of the family Filoviridae, facilitates viral entry into target cells. In addition, EBOV GP antagonizes the antiviral activity of the host cell protein tetherin, which may otherwise restrict EBOV release from infected cells. However, it is unclear how EBOV GP antagonizes tetherin, and it is unknown whether the GP of Lloviu virus (LLOV), a filovirus found in dead bats in Northern Spain, also counteracts tetherin. Here, we show that LLOV GP antagonizes tetherin, indicating that tetherin may not impede LLOV spread in human cells...
December 15, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27696756/anti-il6-r-tocilizumab-for-severe-juvenile-idiopathic-arthritis-associated-uveitis-refractory-to-anti-tnf-therapy-a-multicenter-study-of-25-patients
#13
Vanesa Calvo-Río, Montserrat Santos-Gómez, Inmaculada Calvo, Ma Isabel González-Fernández, Berta López Montesinos, Marina Mesquida, Alfredo Adán, María Victoria Hernández, Olga Maíz, Antonio Atanes, Beatriz Bravo, Consuelo Modesto, Gisela Díaz-Cordovés, Natalia Palmou-Fontana, Javier Loricera, M C González-Vela, Rosalía Demetrio-Pablo, J L Hernández, Miguel A González-Gay, Ricardo Blanco
OBJECTIVE: To assess the efficacy of Tocilizumab (TCZ) for Juvenile Idiopathic Arthritis (JIA)-associated uveitis. METHODS: Multicenter study of patients with JIA-associated uveitis refractory to conventional immunosuppressive drugs and anti-TNFα agents. RESULTS: We assessed 25 (21 women) patients (47 affected eyes); mean age 18.5±8.3 years. Uveitis was bilateral in 22. Cystoid macular edema (CME) was present in 9 patients. Ocular sequelae found at TCZ onset included: cataracts (13), glaucoma (7), synechiae (10), band keratopathy (12), maculopathy (9), and amblyopia (5)...
October 1, 2016: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/27678330/cross-talk-between-human-papillomavirus-oncoproteins-and-hedgehog-signaling-synergistically-promotes-stemness-in-cervical-cancer-cells
#14
Kanchan Vishnoi, Sutapa Mahata, Abhishek Tyagi, Arvind Pandey, Gaurav Verma, Mohit Jadli, Tejveer Singh, Sukh Mahendra Singh, Alok C Bharti
Viral oncoproteins E6/E7 play key oncogenic role in human papillomavirus (HPV)-mediated cervical carcinogenesis in conjunction with aberrant activation of cellular signaling events. GLI-signaling has been implicated in metastasis and tumor recurrence of cervical cancer. However, the interaction of GLI-signaling with HPV oncogenes is unknown. We examined this relationship in established HPV-positive and HPV-negative cervical cancer cell lines using specific GLI inhibitor, cyclopamine and HPVE6/E7 siRNAs. Cervical cancer cell lines showed variable expression of GLI-signaling components...
September 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27670075/supramolecular-peptide-hydrogel-adjuvanted-subunit-vaccine-elicits-protective-antibody-responses-against-west-nile-virus
#15
Brian M Friedrich, David W C Beasley, Jai S Rudra
A crucial issue in vaccine development is to balance safety with immunogenicity. The low immunogenicity of most subunit antigens warrants a search for adjuvants able to stimulate both cell-mediated and humoral immunity. In recent years, successful applications of nanotechnology and bioengineering in the field of vaccine development have enabled the production of novel adjuvant technologies. In this work, we investigated totally synthetic and supramolecular peptide hydrogels as novel vaccine adjuvants in conjunction with the immunoprotective envelope protein domain III (EIII) of West Nile virus as an immunogen in a mouse model...
September 23, 2016: Vaccine
https://www.readbyqxmd.com/read/27668586/effects-of-topical-ocular-application-of-1-trifluridine-ophthalmic-solution-in-dogs-with-experimentally-induced-recurrent-ocular-canine-herpesvirus-1-infection
#16
Chloe B Spertus, Hussni O Mohammed, Eric C Ledbetter
OBJECTIVE To determine the effects of topical ocular application of 1% trifluridine ophthalmic solution in dogs with experimentally induced recurrent ocular canine herpesvirus-1 (CHV-1) infection. ANIMALS 10 specific pathogen-free Beagles. PROCEDURES 12 months prior to the beginning of the randomized, masked, placebo-controlled 30-day trial, latent ocular CHV-1 infection was experimentally induced in each dog by topical ocular inoculation of both eyes with a field strain of CHV-1. Recurrent ocular CHV-1 infection was induced by oral administration of prednisolone for 7 days (starting day 1)...
October 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27651413/containment-care-units-for-managing-patients-with-highly-hazardous-infectious-diseases-a-concept-whose-time-has-come
#17
Mark G Kortepeter, Elena H Kwon, Angela L Hewlett, Philip W Smith, Theodore J Cieslak
The concept of containment care for patients with highly hazardous infectious diseases originated in conjunction with the development of sophisticated biosafety level 4 laboratories at the US Army Medical Research Institute of Infectious Diseases in the late 1960s. Over time, the original containment facility served as a model for the development of other facilities in the United States at government and academic centers. The Ebola outbreak of 2014-2015 brought the issue of containment care into the mainstream and led to the development of such capabilities at strategic points around the country...
October 15, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27650823/origin-of-the-zika-virus-revealed-a-historical-journey-across-the-world
#18
Stephanie Mlacker, Golsa Shafa, Adam S Aldahan, Vidhi V Shah, Sahal Samarkandy, Keyvan Nouri
BACKGROUND: Zika virus (ZIKV) is an arbovirus within the Flaviviridae family, the recent spread of which has promoted public concern. METHODS: This study outlines the clinical features, potential for teratogenicity, diagnosis, and treatment of ZIKV infection. RESULTS: Zika virus is transmitted through the bite of an infected Stegomyia (= Aedes) mosquito, blood transfusion, sexual intercourse, and perinatal routes. Infection has been characterized as mildly symptomatic...
September 21, 2016: International Journal of Dermatology
https://www.readbyqxmd.com/read/27629942/zika-virus-infection-and-solid-organ-transplantation-a-new-challenge
#19
M L Nogueira, C F Estofolete, A C B Terzian, E P B Mascarin do Vale, R C M A da Silva, R F da Silva, H J Ramalho, I M M Fernandes Charpiot, M Abbud-Filho
Public health concerns exist surrounding the epidemic of the Zika virus (ZIKV) and the rapid growth of transplantation in developing countries, including endemic zones of active arbovirus transmission, as well as travel to such regions by potential organ donors and recipients. Few data exist regarding the clinical characteristics of ZIKV infection in immunocompromised hosts. Laboratory screening protocols for transplantation to differentiate ZIKV infections from other endemic viral diseases and for the detection of possible donor-derived infection have not been stated...
September 15, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27628039/sequelae-from-epidemic-viral-conjunctivitis-can-be-associated-with-inflammatory-trachoma-in-schoolchildren
#20
Roberta Lilian Fernandes de Sousa Meneghim, Magda Massae Hata Viveiros, Alicia Galindo-Ferreiro, Carlos Roberto Padovani, Silvana Artioli Schellini
PURPOSE: To evaluate the sequelae due to epidemic viral conjunctivitis (VC) for a possible association with inflammatory trachoma in schoolchildren. METHODS: A cross-sectional survey was performed of 2,093 schoolchildren in public schools in Sao Paulo State, Brazil. The exams were conducted according to the WHO definitions to detect trachoma. We evaluated the prevalence and the association between inflammatory trachoma and sequelae due to VC. RESULTS: The prevalence of inflammatory trachoma in schoolchildren in Botucatu City was 2...
September 14, 2016: Seminars in Ophthalmology
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