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https://www.readbyqxmd.com/read/28332617/molecular-epidemiology-of-acute-hemorrhagic-conjunctivitis-caused-by-coxsackie-a-type-24-variant-in-china-2004-2014
#1
Li Zhang, Na Zhao, Xiaodan Huang, Xiuming Jin, Xingyi Geng, Ta-Chien Chan, Shelan Liu
To understand control interventions, the molecular epidemiology of acute hemorrhagic conjunctivitis (AHC) was investigated from 2004 to 2014.A total of 613,485 AHC cases (annualized cases 55,771) with two deaths were included. Our findings showed that AHC was reported in all provinces, predominantly in Southern and Eastern China. The incidence rates were highest in 2007 (5.65/100,000) and 2010 (21.78/100,000) respectively. A clear seasonal pattern was identified with a peak from August to October. AHC cases occurred in all age groups; however, five to 14 years was the predominant group [23...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28280379/amylmetacresol-2-4-dichlorobenzyl-alcohol-hexylresorcinol-or-carrageenan-lozenges-as-active-treatments-for-sore-throat
#2
Martina Morokutti-Kurz, Christine Graf, Eva Prieschl-Grassauer
Up to 80% of sore throats are caused by viruses. Several over the counter products are available which provide symptomatic, not causal relief. For such lozenges, containing the antiseptics and local anesthetics amylmetacresol (AMC) and 2,4-dichlorobenzyl alcohol (DCBA) or hexylresorcinol (HR), recently an additional virucidal effect was published. Therefore, we tested a set of Strepsils(®) lozenges, containing either HR (Max [#2]) or AMC/DCBA (Original [#3], Extra Strong [#4], Warm [#5], Orange and Vitamin C [#6], Sugar free Lemon [#7], Children/Strawberry [#8] and Soothing Honey and Lemon [#9]) for their antiviral efficiency against representatives of respiratory viruses known to cause sore throat: human rhinovirus (HRV) 1a, HRV8, influenza virus A H1N1n, Coxsackievirus A10, and human coronavirus (hCoV) OC43...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/28278207/pa28-modulates-antigen-processing-and-viral-replication-during-coxsackievirus-b3-infection
#3
Dorota Respondek, Martin Voss, Ina Kühlewindt, Karin Klingel, Elke Krüger, Antje Beling
The function of the proteasome is modulated at the level of subunit expression and by association with its regulatory complexes. During coxsackievirus B3 (CVB3) myocarditis, IFN-induced formation of immunoproteasomes (ip) is known to be critical for regulating immune modulating molecules. The function of the IFN-γ-inducible proteasome regulator subunits PA28 α and β, however, in this context was unknown. During viral myocarditis, we found an increased abundance of PA28β subunits in heart tissue. PA28α/β exists in PA28-20S-PA28 and PA700-20S-PA28 hybrid proteasome complexes in cells both with either predominant ip and standard proteasome (sp) expression...
2017: PloS One
https://www.readbyqxmd.com/read/28259077/assessment-of-the-efficacy-of-membrane-filtration-processes-to-remove-human-enteric-viruses-and-the-suitability-of-bacteriophages-and-a-plant-virus-as-surrogates-for-those-viruses
#4
N Shirasaki, T Matsushita, Y Matsui, K Murai
Here, we evaluated the efficacy of direct microfiltration (MF) and ultrafiltration (UF) to remove three representative human enteric viruses (i.e., adenovirus [AdV] type 40, coxsackievirus [CV] B5, and hepatitis A virus [HAV] IB), and one surrogate of human caliciviruses (i.e., murine norovirus [MNV] type 1). Eight different MF membranes and three different UF membranes were used. We also examined the ability of coagulation pretreatment with high-basicity polyaluminum chloride (PACl) to enhance virus removal by MF...
February 24, 2017: Water Research
https://www.readbyqxmd.com/read/28250116/a-neonatal-murine-model-of-coxsackievirus-a6-infection-for-evaluation-of-antiviral-and-vaccine-efficacy
#5
Zhenjie Zhang, Zhaopeng Dong, Qingjuan Wei, Michael J Carr, Juan Li, Shujun Ding, Yigang Tong, Dong Li, Weifeng Shi
Hand, foot and mouth disease (HFMD) is a global health concern. Family Picornaviridae members, particularly enterovirus 71 (EVA71) and Coxsackievirus A16 (CVA16), are the primary etiological agents of HFMD, however, a third enterovirus A species, CoxsackievirusA6 (CVA6), has been recently associated with epidemic outbreaks. Study of the pathogenesis of CVA6 infection and development of antivirals and vaccines are hindered due to the lack of appropriate animal models. We have developed and characterized a murine model of CVA6 infection which was employed to evaluate the antiviral activities of different drugs and the protective efficacies of CVA6-inactivated vaccines...
March 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28247213/microrna-20b-suppresses-the-expression-of-zfp-148-in-viral-myocarditis
#6
Hong-Fei Xu, Xiang-Ting Gao, Jun-Yi Lin, Xue-Hua Xu, Jun Hu, Yu-Jie Ding, Shao-Hua Zhu
Viral myocarditis is a common cardiovascular disease, which seriously endangers the health of people and even leads to sudden unexpected death. MicroRNAs play very important roles in various physical and pathological processes including cardiogenesis and heart diseases. In recent years, miR-20b has been implicated in various diseases such as breast cancer, gastric cancer, hepatocellular carcinoma, cardiovascular diseases. However, the function of miR-20b in the pathological progress of viral myocarditis has not been reported...
February 28, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28243803/co-infection-with-coxsackievirus-a5-and-norovirus-gii-4-could-have-been-the-trigger-of-the-first-episode-of-severe-acute-encephalopathy-in-a-six-year-old-child-with-the-intermittent-form-of-maple-syrup-urine-disease-msud
#7
Ákos Boros, Péter Pankovics, Sándor Kőmíves, Zoltán Liptai, Sarolta Dobner, Enikő Ujhelyi, György Várallyay, Petra Zsidegh, Nóra Bolba, Gábor Reuter
In this case study, a co-infection with coxsackievirus A5 (family Picornaviridae) and norovirus GII.4 (family Caliciviridae) was detected by RT-PCR in a faecal sample from a six-year-old girl with symptoms of severe acute encephalopathy subsequently diagnosed as the intermittent form of maple syrup urine disease (MSUD). The two co-infecting viruses, which had been detected previously, appeared to have triggered the underlying metabolic disorder. Here, we describe the genotyping of the viruses, as well as the chronological course, laboratory test results, and clinical presentation of this case, which included recurrent vomiting without diarrhoea, metabolic acidosis, unconsciousness, seizure and circulatory collapse, but with a positive final outcome...
February 27, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28242695/genetic-variation-in-chromosome-y-regulates-susceptibility-to-influenza-a-virus-infection
#8
Dimitry N Krementsov, Laure K Case, Oliver Dienz, Abbas Raza, Qian Fang, Jennifer L Ather, Matthew E Poynter, Jonathan E Boyson, Janice Y Bunn, Cory Teuscher
Males of many species, ranging from humans to insects, are more susceptible than females to parasitic, fungal, bacterial, and viral infections. One mechanism that has been proposed to account for this difference is the immunocompetence handicap model, which posits that the greater infectious disease burden in males is due to testosterone, which drives the development of secondary male sex characteristics at the expense of suppressing immunity. However, emerging data suggest that cell-intrinsic (chromosome X and Y) sex-specific factors also may contribute to the sex differences in infectious disease burden...
February 27, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28229467/characterization-of-genome-sequences-and-clinical-features-of-coxsackievirus-a6-strains-collected-in-hyogo-japan-in-1999-2013
#9
Miki Ogi, Yoshihiko Yano, Masatsugu Chikahira, Denshi Takai, Tomohiro Oshibe, Takeshi Arashiro, Nozomu Hanaoka, Tsuguto Fujimoto, Yoshitake Hayashi
Coxsackievirus A6 (CV-A6) is an enterovirus, which is known to cause herpangina. However, since 2009 it has frequently been isolated from children with hand, foot and mouth disease (HFMD). In Japan, CV-A6 has been linked to HFMD outbreaks in 2011 and 2013. In this study, the full-length genome sequencing of CV-A6 strains were analyzed to identify the association with clinical manifestations. 5612 children with suspected enterovirus infection (0-17 years old) between 1999 and 2013 in Hyogo Prefecture, Japan, were enrolled...
February 22, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28219155/-genotype-distribution-of-human-enteroviruses-isolated-from-swage-in-shanghai-during-year-2013-2014
#10
Y Y Li, J Lu, X Z Wang, Y Y Yang, J Fei, L P Zhang, Z Li, C S Li, Y Zuo
Objective: To explore the time and genotype distribution of human enterovirus (HEV) isolated from sewage in Shanghai in 2013-2014. Methods: One sewage sample each was collected from two local sewage plants located in Minhang District and Jiading District on the same day at the day 24-28 of every month from 2013 to 2014. Each sample weighed 1 L. The specimens were concentrated by anionic membrane absorption, eluted with beef extract solution, and then used to inoculate RD, HEp-2, and L20B cell lines. A total of 249 enterovirus strains were isolated from sewage samples during the study period, including 185 non-polio enterovirus (NPEV) and 64 poliovirus (PV) strains, which were identified as vaccine strains...
February 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28207428/il-37-ameliorates-coxsackievirus-b3-induced-viral-myocarditis-by-modulating-the-th17-treg-immune-response
#11
Bang An, Xuefei Liu, Ge Li, Haitao Yuan
Myocarditis is a heterogeneous group of disorders defined by inflammation of the heart muscle with an excessively activated immune response. Numerous interventions have been investigated for the treatment of myocarditis while success is limited. Interleukin-37 (IL-37), a novel member of the IL-1 cytokine family, is a natural inhibitor of innate immunity associated with autoimmune diseases. However, the modulatory effect of IL-37 in myocarditis is unknown. In this study, we investigated the immunological regulation of IL-37 in the coxsackievirus B3-induced model of murine viral myocarditis...
February 14, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28198671/transcriptome-analysis-reveals-dynamic-changes-in-coxsackievirus-a16-infected-hek-293t-cells
#12
Jun Jin, Rujiao Li, Chunlai Jiang, Ruosi Zhang, Xiaomeng Ge, Fang Liang, Xin Sheng, Wenwen Dai, Meili Chen, Jiayan Wu, Jingfa Xiao, Weiheng Su
BACKGROUND: Coxsackievirus A16 (CVA16) and enterovirus 71 (EV71) are two of the major causes of hand, foot and mouth disease (HFMD) world-wide. Although many studies have focused on infection and pathogenic mechanisms, the transcriptome profile of the host cell upon CVA16 infection is still largely unknown. RESULTS: In this study, we compared the mRNA and miRNA expression profiles of human embryonic kidney 293T cells infected and non-infected with CVA16. We highlighted that the transcription of SCARB2, a cellular receptor for both CVA16 and EV71, was up-regulated by nearly 10-fold in infected cells compared to non-infected cells...
January 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28198541/adenovirus-type-4-respiratory-infections-with-a-concurrent-outbreak-of-coxsackievirus-a21-among-united-states-army-basic-trainees-a-retrospective-viral-etiology-study-using-next-generation-sequencing
#13
Jun Hang, Todd J Vento, Erica A Norby, Richard G Jarman, Paul B Keiser, Robert A Kuschner, Leonard N Binn
BACKGROUND: Human adenoviruses (HAdV), in particular types 4 and 7, frequently cause acute respiratory disease (ARD) during basic military training. HAdV4 and HAdV7 vaccines reduced the ARD risk in US military. It is important to identify other respiratory pathogens and assess their potential impact on military readiness. METHODS: In 2002, during a period when the HAdV vaccines were not available, throat swabs were taken from trainees (n = 184) with respiratory infections at Fort Jackson, South Carolina...
February 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28197102/right-cervical-vagotomy-aggravates-viral-myocarditis-in-mice-via-the-cholinergic-anti-inflammatory-pathway
#14
Ge Li-Sha, Chen Xing-Xing, Wu Lian-Pin, Zhou De-Pu, Li Xiao-Wei, Lin Jia-Feng, Li Yue-Chun
The autonomic nervous system dysfunction with increased sympathetic activity and withdrawal of vagal activity may play an important role in the pathogenesis of viral myocarditis. The vagus nerve can modulate the immune response and control inflammation through a 'cholinergic anti-inflammatory pathway' dependent on the α7-nicotinic acetylcholine receptor (α7nAChR). Although the role of β-adrenergic stimulation on viral myocarditis has been investigated in our pervious studies, the direct effect of vagal tone in this setting has not been yet studied...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28186704/mesenchymal-stromal-cells-modulate-monocytes-trafficking-in-coxsackievirus-b3-induced-myocarditis
#15
Kapka Miteva, Kathleen Pappritz, Muhammad El-Shafeey, Fengquan Dong, Jochen Ringe, Carsten Tschöpe, Sophie Van Linthout
Mesenchymal stromal cell (MSC) application in Coxsackievirus B3 (CVB3)-induced myocarditis reduces myocardial inflammation and fibrosis, exerts prominent extra-cardiac immunomodulation, and improves heart function. Although the abovementioned findings demonstrate the benefit of MSC application, the mechanism of the MSC immunomodulatory effects leading to a final cardioprotective outcome in viral myocarditis remains poorly understood. Monocytes are known to be a trigger of myocardial tissue inflammation. The present study aims at investigating the direct effect of MSC on the mobilization and trafficking of monocytes to the heart in CVB3-induced myocarditis...
January 3, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28176833/transmissible-endoplasmic-reticulum-stress-from-myocardiocytes-to-macrophages-is-pivotal-for-the-pathogenesis-of-cvb3-induced-viral-myocarditis
#16
Hui Zhang, Yan Yue, Tianle Sun, Xuejie Wu, Sidong Xiong
Infiltrating macrophages have been proven as a pivotal pathological inflammatory cell subset in coxsackievirus B3 (CVB3) induced viral myocarditis. However, the mechanisms underlying the initiation and promotion of macrophage pro-inflammatory responses are still blur. We previously reported that cardiac ER stress contributed to CVB3-induced myocarditis by augmenting inflammation. In this study, we focused on the influence of ER stress on the macrophage inflammatory responses in the viral myocarditis. We found that ER stress was robustly induced in the cardiac infiltrating macrophages from CVB3-infected mice, and robustly facilitated the production of pro-inflammatory cytokines (IL-6, IL-12, MCP-1 and IP-10)...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28174228/profiling-subcellular-protein-phosphatase-responses-to-coxsackievirus-b3-infection-of-cardiomyocytes
#17
Millie Shah, Christian M Smolko, Sarah Kinicki, Zachary D Chapman, David L Brautigan, Kevin A Janes
Cellular responses to stimuli involve dynamic and localized changes in protein kinases and phosphatases. Here, we report a generalized functional assay for high-throughput profiling of multiple protein phosphatases with subcellular resolution and apply it to analyze coxsackievirus B3 (CVB3) infection counteracted by interferon signaling. Using on-plate cell fractionation optimized for adherent cells, we isolate protein extracts containing active endogenous phosphatases from cell membranes, the cytoplasm, and the nucleus...
February 7, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28168168/enterovirus-71-infection-and-vaccines
#18
REVIEW
Eun-Je Yi, Yun-Ju Shin, Jeong-Hwan Kim, Tae-Gyun Kim, Sun-Young Chang
Hand, foot and mouth disease (HFMD) is a highly contagious viral infection affecting young children during the spring to fall seasons. Recently, serious outbreaks of HFMD were reported frequently in the Asia-Pacific region, including China and Korea. The symptoms of HFMD are usually mild, comprising fever, loss of appetite, and a rash with blisters, which do not need specific treatment. However, there are uncommon neurological or cardiac complications such as meningitis and acute flaccid paralysis that can be fatal...
January 2017: Clinical and Experimental Vaccine Research
https://www.readbyqxmd.com/read/28154260/identification-of-adenovirus-derived-cell-penetrating-peptide
#19
Takamasa Hirai, Yoshiaki Yamagishi, Naoya Koizumi, Miwa Nonaka, Rina Mochida, Kenta Shida, Tetsuya Nomura, Makiko Fujii, Fuminori Sakurai, Hiroyuki Mizuguchi, Yoshiteru Watanabe, Naoki Utoguchi
Cell-penetrating peptides (CPPs) have been highly anticipated as an efficient delivery system due to their ability to cross biological membranes and transport various cargoes into cells. In the present study, we have identified adenovirus-derived CPPs using various capsid-mutant adenovirus (Ad) vectors. First, we examined the endocytosis-inducing ability of these vectors. A fiber-shaft substituted Ad vector, Ad type 5 vector with the fiber shaft domain replaced by that derived from Ad type 35, induced the highest fluorescein isothiocyanate (FITC)-dextran uptake into a human liver cell line, HepG2 cells...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28148783/beta-propiolactone-inactivation-of-coxsackievirus-a16-induces-structural-alteration-and-surface-modification-of-viral-capsids
#20
Chen Fan, Xiaohua Ye, Zhiqiang Ku, Liangliang Kong, Qingwei Liu, Cong Xu, Yao Cong, Zhong Huang
Beta-propiolactone (BPL) is an inactivating agent widely used in the vaccine industry. However, its effects on vaccine protein antigens and its mechanisms of action remain poorly understood. Here we presented cryo-EM structures of BPL-treated coxsackievirus A16 (CVA16) mature virion and procapsid at resolutions of 3.9 Å and 6.5 Å, respectively. Notably, both particles were found to adopt an expanded conformation resembling the 135S-like uncoating intermediate, with characteristic features including an opened 2-fold channel, the externalization of the N-terminus of VP1 capsid protein as well as the absence of pocket factor...
February 1, 2017: Journal of Virology
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