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Viral conjunctivitis

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https://www.readbyqxmd.com/read/29196449/sustained-t-follicular-helper-cell-response-is-essential-for-control-of-chronic-viral-infection
#1
Ute Greczmiel, Nike Julia Kräutler, Alessandro Pedrioli, Ilka Bartsch, Paola Agnellini, Gregor Bedenikovic, James Harker, Kirsten Richter, Annette Oxenius
During chronic viral infections, both CD8 and CD4 T cell responses are functionally compromised. Alongside exhaustion of CD8 T cells during chronic viral infections, it has also been documented that the CD4 T cells have an increased propensity to differentiate toward CXCR5+ T follicular helper cell (TFH) lineage. Whether these TFH cells contribute to the immune response to chronic viral infection has remained unclear. Using chronic lymphocytic choriomeningitis virus (LCMV) infection in conjunction with an in vivo system where TFH cells can be conditionally ablated, we have established that these TFH cells do in fact play an important protective function...
December 1, 2017: Science Immunology
https://www.readbyqxmd.com/read/29174718/z-fa-fmk-demonstrates-differential-inhibition-of-aquatic-orthoreovirus-prv-aquareovirus-csrv-and-rhabdovirus-ihnv-replication
#2
Olivia Roscow, Rosemarie Ganassin, Kyle Garver, Mark Polinski
Benzyloxycarbonyl-phenylalanyl-alanyl-fluoromethyl ketone (Z-FA-FMK) is a protease inhibitor that has been shown to strongly inhibit mammalian orthoreovirus replication. Here we explore the ability of Z-FA-FMK to inhibit three important yet genetically discrete aquatic fish viruses: chum salmon aquareovirus (CSRV), piscine orthoreovirus (PRV), and the rhabdovirus infectious hematopoietic necrosis virus (IHNV). Z-FA-FMK significantly attenuated CSRV in vitro transcription and infectious yield following low-dose (2-20μM) exposure, yet a relatively high dose (200μM) was required to completely block CSRV replication...
November 22, 2017: Virus Research
https://www.readbyqxmd.com/read/29162476/prevention-and-treatment-of-respiratory-viral-infections-presentations-on-antivirals-traditional-therapies-and-host-directed-interventions-at-the-5th-isirv-antiviral-group-conference
#3
Jennifer L McKimm-Breschkin, Shibo Jiang, David S Hui, John H Beigel, Elena A Govorkova, Nelson Lee
The International Society for Influenza and other Respiratory Virus Diseases held its 5th Antiviral Group (isirv-AVG) Conference in Shanghai, China, in conjunction with the Shanghai Public Health Center and Fudan University from 14-16 June, 2017. The three-day programme encompassed presentations on some of the clinical features, management, immune responses and virology of respiratory infections, including influenza A(H1N1)pdm09 and A(H7N9) viruses, MERS-CoV, SARS-CoV, adenovirus Type 80, enterovirus D68, metapneumovirus and respiratory syncytial virus (RSV)...
November 18, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29162154/pigeon-paramyxovirus-type-1-from-a-fatal-human-case-induces-pneumonia-in-experimentally-infected-cynomolgus-macaques-macaca-fascicularis
#4
Thijs Kuiken, Pascal Buijs, Peter van Run, Geert van Amerongen, Marion Koopmans, Bernadette van den Hoogen
Although avian paramyxovirus type 1 is known to cause mild transient conjunctivitis in human beings, there are two recent reports of fatal respiratory disease in immunocompromised human patients infected with the pigeon lineage of the virus (PPMV-1). In order to evaluate the potential of PPMV-1 to cause respiratory tract disease, we inoculated a PPMV-1 isolate (hPPMV-1/Netherlands/579/2003) from an immunocompromised human patient into three healthy cynomolgus macaques (Macaca fascicularis) and examined them by clinical, virological, and pathological assays...
November 21, 2017: Veterinary Research
https://www.readbyqxmd.com/read/29147850/the-tear-cytokine-profile-in-patients-with-active-graves-orbitopathy
#5
Morgan Yang, Yvonne Chung, Stephanie Lang, Nobuyo Yawata, Lay Leng Seah, Audrey Looi
PURPOSE: The primary aim of this study is to isolate cytokines specific for active Graves' orbitopathy (GO) in the tears of affected patients. The secondary aim is to identify other cytokines of interest and to look at the profile of their levels over time. METHODS: This is a prospective pilot study conducted at the Singapore National Eye Centre. A total of 10 patients with active GO and 10 patients from each of 3 control groups were recruited. The 3 control groups were the following: age-matched normal female patients, patients with GO who were clinically inactive and patients with bilateral viral conjunctivitis...
November 16, 2017: Endocrine
https://www.readbyqxmd.com/read/29113587/streptococcus-pneumoniae-burden-and-nasopharyngeal-inflammation-during-acute-otitis-media
#6
Matthew C Morris, Michael E Pichichero
Streptococcus pneumoniae (Spn) is a common respiratory pathogen and a frequent cause of acute otitis media (AOM) in children. The first step in bacterial pathogenesis of AOM is the establishment of asymptomatic colonization in the nasopharynx. We studied Spn bacterial burden in conjunction with neutrophil recruitment and inflammatory gene transcription and cytokine secretion in samples of nasal wash collected from normal and otitis-prone children during health, viral upper respiratory infection without middle ear involvement (URI) and AOM...
November 2017: Innate Immunity
https://www.readbyqxmd.com/read/29101992/acr-appropriateness-criteria-%C3%A2-sinonasal-disease
#7
Claudia F E Kirsch, Julie Bykowski, Joseph M Aulino, Kevin L Berger, Asim F Choudhri, David B Conley, Michael D Luttrull, Diego Nunez, Lubdha M Shah, Aseem Sharma, Vilaas S Shetty, Rathan M Subramaniam, Sophia C Symko, Rebecca S Cornelius
Imaging of sinonasal pathology may occur for assessment of rhinosinusitis or mass lesions. Rhinosinusitis is prevalent in up to 16% of the US population with annual economic burdens estimated at 22 billion dollars. Rhinosinusitis is characterized as acute or chronic based on symptom duration; if four or more episodes occur annually, the term recurrent acute rhinosinusitis (RARS) is used. In acute uncomplicated rhinosinusitis when inflammatory change remains in the paranasal sinuses and nasal cavity, imaging may not be required...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29098140/mpgn-and-mixed-cryoglobulinemia-in-a-patient-with-hepatitis-c-new-treatment-implications-and-renal-outcomes
#8
Shannon B Palombo, Eric C Wendel, Laura R Kidd, Farshid Yazdi, Mihran V Naljayan
. INTRODUCTION: The association of hepatitis C virus (HCV), cryoglobulinemia, and membranoproliferative glomerulonephritis (MPGN) is well known. Treatment of underlying HCV infection has greatly improved in recent years with the introduction of direct-acting antivirals (DAA), which have demonstrated curative sustained viral response (SVR) rates for select viral genotypes with the added benefit of less drug side effects. However, a mainstay of newer DAAs is sofosbuvir, which is contraindicated in patients with severe renal impairment...
2017: Clinical Nephrology. Case Studies
https://www.readbyqxmd.com/read/29091706/neutralizing-antibodies-for-orthobunyaviruses-in-pantanal-brazil
#9
Alex Pauvolid-Corrêa, Zilca Campos, Raquel Soares, Rita Maria Ribeiro Nogueira, Nicholas Komar
The Pantanal is a hotspot for arbovirus studies in South America. Various medically important flaviviruses and alphaviruses have been reported in domestic and wild animals in the region. To expand the knowledge of local arbovirus circulation, a serosurvey for 14 Brazilian orthobunyaviruses was conducted with equines, sheep and free-ranging caimans. Sera were tested for specific viral antibodies using plaque-reduction neutralization test (PRNT). Monotypic reactions were detected for Maguari, Xingu, Apeu, Guaroa, Murutucu, Oriboca, Oropouche and Nepuyo viruses...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29080708/classification-of-cough-as-a-symptom-in-adults-and-management-algorithms-chest-guideline-and-expert-panel-report
#10
Richard S Irwin, Cynthia L French, Anne B Chang, Kenneth W Altman
BACKGROUND: We performed systematic reviews using the population, intervention, comparison, outcome (PICO) format to answer the following key clinical question: Are the CHEST 2006 classifications of acute, subacute and chronic cough and associated management algorithms in adults that were based on durations of cough useful? METHODS: We used the CHEST Expert Cough Panel's protocol for the systematic reviews and the American College of Chest Physicians (CHEST) methodological guidelines and Grading of Recommendations Assessment, Development, and Evaluation framework...
November 10, 2017: Chest
https://www.readbyqxmd.com/read/29073255/serosurveillance-for-pandemic-influenza-a-h1n1-2009-virus-infection-in-domestic-elephants-thailand
#11
Weena Paungpin, Witthawat Wiriyarat, Kridsada Chaichoun, Ekasit Tiyanun, Nareerat Sangkachai, Don Changsom, Kanaporn Poltep, Parntep Ratanakorn, Pilaipan Puthavathana
The present study conducted serosurveillance for the presence of antibody to pandemic influenza A (H1N1) 2009 virus (H1N1pdm virus) in archival serum samples collected between 2009 and 2013 from 317 domestic elephants living in 19 provinces situated in various parts of Thailand. To obtain the most accurate data, hemagglutination-inhibition (HI) assay was employed as the screening test; and sera with HI antibody titers ≥20 were further confirmed by other methods, including cytopathic effect/hemagglutination based-microneutralization (microNT) and Western blot (WB) assays using H1N1pdm matrix 1 (M1) or hemagglutinin (HA) recombinant protein as the test antigen...
2017: PloS One
https://www.readbyqxmd.com/read/29069650/dnajb1-hsp40-suppresses-melanoma-differentiation-associated-gene-5-mitochondrial-antiviral-signaling-protein-function-in-conjunction-with-hsp70
#12
Ken Takashima, Hiroyuki Oshiumi, Misako Matsumoto, Tsukasa Seya
Melanoma differentiation-associated gene 5 (MDA5) is a pattern recognition receptor that recognizes cytoplasmic viral double-stranded RNA (dsRNA) and initiates rapid innate antiviral responses. MDA5 forms a filament-like multimer along the dsRNA leading to oligomerization, which in turn activates the adaptor protein mitochondrial antiviral signaling protein (MAVS) to provide a signal platform for the induction of type I interferon (IFN) and proinflammatory cytokines. The conformational switch of MDA5 causes antiviral defense, but excessive activation of the MDA5-MAVS pathway may result in autoimmune diseases...
October 26, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/29065388/targeted-sequencing-of-clade-specific-markers-from-skin-microbiomes-for-forensic-human-identification
#13
Sarah E Schmedes, August E Woerner, Nicole M M Novroski, Frank R Wendt, Jonathan L King, Kathryn M Stephens, Bruce Budowle
The human skin microbiome is comprised of diverse communities of bacterial, eukaryotic, and viral taxa and contributes millions of additional genes to the repertoire of human genes, affecting human metabolism and immune response. Numerous genetic and environmental factors influence the microbiome composition and as such contribute to individual-specific microbial signatures which may be exploited for forensic applications. Previous studies have demonstrated the potential to associate skin microbial profiles collected from touched items to their individual owner, mainly using unsupervised methods from samples collected over short time intervals...
October 18, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/29042667/mg-132-reduces-virus-release-in-bovine-herpesvirus-1-infection
#14
Filomena Fiorito, Valentina Iovane, Antonietta Cantiello, Annarosaria Marullo, Luisa De Martino, Giuseppe Iovane
Bovine herpesvirus 1 (BoHV-1) can provoke conjunctivitis, abortions and shipping fever. BoHV-1 infection can also cause immunosuppression and increased susceptibility to secondary bacterial infections, leading to pneumonia and occasionally to death. Herein, we investigated the influence of MG-132, a proteasome inhibitor, on BoHV-1 infection in bovine kidney (MDBK) cells. Infection of MDBK cells with BoHV-1 induces apoptotic cell death that enhances virus release. Whereas, MG-132 inhibited virus-induced apoptosis and stimulated autophagy...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29031848/local-national-and-regional-viral-haemorrhagic-fever-pandemic-potential-in-africa-a-multistage-analysis
#15
David M Pigott, Aniruddha Deshpande, Ian Letourneau, Chloe Morozoff, Robert C Reiner, Moritz U G Kraemer, Shannon E Brent, Isaac I Bogoch, Kamran Khan, Molly H Biehl, Roy Burstein, Lucas Earl, Nancy Fullman, Jane P Messina, Adrian Q N Mylne, Catherine L Moyes, Freya M Shearer, Samir Bhatt, Oliver J Brady, Peter W Gething, Daniel J Weiss, Andrew J Tatem, Luke Caley, Tom De Groeve, Luca Vernaccini, Nick Golding, Peter Horby, Jens H Kuhn, Sandra J Laney, Edmond Ng, Peter Piot, Osman Sankoh, Christopher J L Murray, Simon I Hay
BACKGROUND: Predicting when and where pathogens will emerge is difficult, yet, as shown by the recent Ebola and Zika epidemics, effective and timely responses are key. It is therefore crucial to transition from reactive to proactive responses for these pathogens. To better identify priorities for outbreak mitigation and prevention, we developed a cohesive framework combining disparate methods and data sources, and assessed subnational pandemic potential for four viral haemorrhagic fevers in Africa, Crimean-Congo haemorrhagic fever, Ebola virus disease, Lassa fever, and Marburg virus disease...
October 11, 2017: Lancet
https://www.readbyqxmd.com/read/28985745/mucus-and-mucins-do-they-have-a-role-in-the-inhibition-of-the-human-immunodeficiency-virus
#16
REVIEW
Anwar Suleman Mall, Habtom Habte, Yolanda Mthembu, Julia Peacocke, Corena de Beer
BACKGROUND: Mucins are large O-linked glycosylated proteins which give mucus their gel-forming properties. There are indications that mucus and mucins in saliva, breast milk and in the cervical plug inhibit the human immunodeficiency virus (HIV-1) in an in vitro assay. Crude mucus gels form continuous layers on the epithelial surfaces of the major internal tracts of the body and protect these epithelial surfaces against aggressive luminal factors such as hydrochloric acid and pepsin proteolysis in the stomach lumen, the movement of hard faecal pellets in the colon at high pressure, the effects of shear against the vaginal epithelium during intercourse and the presence of foreign substances in the respiratory airways...
October 6, 2017: Virology Journal
https://www.readbyqxmd.com/read/28964298/implementation-of-a-perioperative-surgical-home-protocol-for-pediatric-patients-presenting-for-adenoidectomy
#17
Vidya T Raman, Dmitry Tumin, Joshua Uffman, Arlyne K Thung, Candice Burrier, Kris R Jatana, Charles Elmaraghy, Joseph D Tobias
INTRODUCTION: The perioperative surgical home (PSH) is a patient-centered model designed to improve health, streamline the delivery of health care, and reduce the cost of care. Following the national introduction of PSH in 2014 by the ASA, adult hospitals have reported success with this model, with studies validating the benefits of PSH including reducing length of stay, lowering costs, and improving patient satisfaction. METHODS: Eligible patients, ranging in age from 16-35 months of age, were identified by the pre-admission testing (PAT) registered nurses (RNs) and faculty anesthesiologists upon review of the patient history...
October 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28947776/a-virological-and-phylogenetic-analysis-of-the-emergence-of-new-clades-of-respiratory-syncytial-virus
#18
Farah Elawar, Cameron D Griffiths, Daniel Zhu, Leanne M Bilawchuk, Lionel D Jensen, Lydia Forss, Julian Tang, Bart Hazes, Steven J Drews, David J Marchant
The significant burden of Respiratory Syncytial Virus (RSV) in pediatric and elderly populations is well recognized. However, questions remain about transmission and evolution of RSV in the community, between seasons, and the role played by viral genetics in viral replication. Therefore, we integrated next generation sequencing, patient viral load, and viral replication analysis with surveillance of RSV to initiate a better understanding of viral adaptation in communities. RSV type-A and B infections were most closely related to RSV sequences from the USA and Asia, respectfully...
September 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28947525/successful-treatment-of-chronic-hepatitis-c-virus-infection-in-a-patient-receiving-daily-peritoneal-dialysis
#19
Jennifer E Stark, Jennifer Cole
PURPOSE: Successful use of a 4-drug oral fixed-dose combination therapy to treat chronic hepatitis C in a patient receiving peritoneal dialysis (PD) is reported. SUMMARY: New highly effective treatments for chronic hepatitis C virus (HCV) infection are now available, but safety and efficacy data on the use of anti-HCV therapies in patients with renal failure, particularly those requiring PD, remain limited. A 73-year-old black man with chronic HCV genotype 1a infection and stage 5 chronic renal disease requiring daily automated PD was referred for HCV treatment prior to renal transplantation...
October 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28942662/-ophthalmological-symptoms-of-measles-and-their-treatment
#20
Mihály Végh, András Hári-Kovács, Hans-Walter Roth, Andrea Facskó
Measles, caused by the Morbilli virus, is a highly (about 95 %) contagious disease affecting primarily children, but without proper immunisation, adults can also be infected. The leading symptoms of the disease are high fever that presents after an incubation period of 9-10 days and the red rash that begins several days after the fever starts. Beyond specific generalized symptoms, measles may have ocular symptoms. The most commonly occurring conjunctivitis, the so-called "red eye symptom", is not characteristic only for measles infection, however, by taking the generalized symptoms it can suggest the diagnosis at the beginning of the disease...
October 2017: Orvosi Hetilap
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