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Enterovirus 71

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https://www.readbyqxmd.com/read/29440739/pyroptosis-induced-by-enterovirus-71-and-coxsackievirus-b3-infection-affects-viral-replication-and-host-response
#1
Yan Wang, Ying Qin, Tianying Wang, Yang Chen, Xiujuan Lang, Jia Zheng, Shuoyang Gao, Sijia Chen, Xiaoyan Zhong, Yusong Mu, Xiaoyu Wu, Fengming Zhang, Wenran Zhao, Zhaohua Zhong
Enterovirus 71 (EV71) is the primary causative pathogen of hand, foot, and mouth disease (HFMD), affecting children with severe neurological complications. Pyroptosis is a programmed cell death characterized by cell lysis and inflammatory response. Although proinflammatory response has been implicated to play important roles in EV71-caused diseases, the involvement of pyroptosis in the pathogenesis of EV71 is poorly defined. We show that EV71 infection induced caspase-1 activation. Responding to the activation of caspase-1, the expression and secretion of both IL-1β and IL-18 were increased in EV71-infected cells...
February 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29429036/development-of-a-reverse-transcription-recombinase-aided-amplification-assay-for-the-detection-of-coxsackievirus-a10-and-coxsackievirus-a6-rna
#2
Teng-Fei Yan, Xin-Na Li, Le Wang, Chen Chen, Su-Xia Duan, Ju-Ju Qi, Li-Xin Li, Xue-Jun Ma
Hand, foot and mouth disease (HFMD) is a serious public health problem, and coxsackievirus A6 (CVA6) and coxsackievirus A10 (CVA10) are two of the major causative pathogens, in addition to enterovirus 71 (EV71) and coxsackievirus A16 (CVA16). A simple and rapid reverse transcription recombinase-aided amplification assay (RT-RAA) was developed for the detection of CVA10 and CVA6 in this study. The analytical sensitivity for detection of CVA10 and CVA6 at 95% probability by probit regression analysis was 35 copies per reaction and 38 copies per reaction, respectively, with 100% specificity...
February 10, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29425831/gs-9620-inhibits-enterovirus-71-replication-mainly-through-the-nf-%C3%AE%C2%BAb-and-pi3k-akt-signaling-pathways
#3
Qian Zhang, Binbin Zhao, Xin Chen, Nan Song, Jing Wu, Guangchao Li, Pin Yu, Yunlin Han, Jiangning Liu, Chuan Qin
Human enterovirus 71 (EV71) is the second most common cause of hand, foot, and mouth disease (HFMD), which can occur as a severe epidemic especially among children under 5-years old. New and improved treatment strategies to control EV71 infection are therefore urgently required. The heterocyclic compound GS-9620, a potent and selective agonist of Toll-like receptor 7 (TLR7), has been reported to activate plasmacytoid dendritic cells (pDCs), and suppress HBV as well as HIV replication. In this study, we indicated that GS-9620 also could inhibit EV71 replication in the mouse model of EV71 infection...
February 6, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29414184/oligoadenylate-synthetase-3-s381r-gene-polymorphism-is-associated-with-severity-of-ev71-infection-in-chinese-children
#4
Yedan Liu, Peipei Liu, Shihai Liu, Ya Guo, Hongfang He, Chengqing Yang, Jie Song, Na Zhang, Jianguo Cheng, Zongbo Chen
BACKGROUND: Oligoadenylate synthetase 3 (OAS3) is interferon-induced antiviral enzyme, playing a significant role in the innate immune response. Genetic polymorphism in OAS3 gene has been reported to be a susceptibility factor in many infected diseases, but evidence of its effect on enterovirus 71 (EV71) infection is still lacking. OBJECTIVES: An attempt study was made to investigate whether genetic polymorphism of OAS3 S381R is associated with the severity of EV71 infection in Chinese children...
January 30, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29401726/epidemiological-characteristics-and-spatial-temporal-distribution-of-hand-foot-and-mouth-disease-in-chongqing-china-2009-2016
#5
Li Qi, Wenge Tang, Han Zhao, Hua Ling, Kun Su, Hua Zhao, Qin Li, Tao Shen
(1) Objective: Even with licensed vaccine for enterovirus 71 (EV71) put into market in 2016 in China, hand, foot, and mouth disease (HFMD) is still a threat for children's health in Chongqing. We described the epidemiological characteristics and spatial-temporal patterns of HFMD in Chongqing from 2009 to 2016, in order to provide information and evidence for guiding public health response and intervention. (2) Methods: We retrieved the HFMD surveillance data from January 2009 to December 2016 from "National Disease Reporting Information System", and then analyzed demographic and geographical information integrally...
February 5, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29398272/development-of-a-high-growth-enterovirus-71-vaccine-candidate-inducing-cross-reactive-neutralizing-antibody-responses
#6
Min-Yuan Chia, Wan-Yu Chung, Chun-Hsiung Wang, Wei-Hau Chang, Min-Shi Lee
Although Enterovirus 71 (EV71) has only one serotype based on serum neutralization tests using hyperimmune animal antisera, three major genogroups (A, B and C) including eleven genotypes (A, B1-B2, and C1-C5) can be well classified based on phylogenetic analysis. Since 1997, large-scale EV71 epidemics occurred cyclically with different genotypes in the Asia-Pacific region. Therefore, development of EV71 vaccines is a national priority in several Asian countries. Currently, five vaccine candidates have been evaluated in clinical trials in China (three C4 candidates), Singapore (one B2 candidate), and Taiwan (one B4 candidate)...
February 2, 2018: Vaccine
https://www.readbyqxmd.com/read/29374213/cerebrospinal-fluid-chemokine-patterns-in-children-with-enterovirus-71-related-encephalitis
#7
Jinling Liu, Shuxian Li, Chunyan Cai, Yingchun Xu, Yuan Jiang, Zhimin Chen
Enterovirus 71 (EV71) is a major pathogen that causes hand, foot and mouth disease (HFMD) as well as neurological complications, such as encephalitis. The chemokines involved in the migration of leukocytes have increasingly been implicated in infectious diseases of the central nervous system. Few studies have evaluated the levels of chemokines in HMFD children with EV71-related encephalitis. In the present study, we evaluated the cerebrospinal fluid (CSF) levels of the chemokines IL-8, RANTES, MIG, MCP-1 and IP-10 in 99 children with EV71-related encephalitis and 22 children with febrile convulsion (FC)...
January 26, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29373474/association-between-enterovirus-infection-and-asthma-in-children-a-16-year-nationwide-population-based-cohort-study
#8
Ying-Ching Wang, Ching-Shu Tsai, Yao-Hsu Yang, Kuo-You Huang, Wen-Chi Hsieh, Ting-Yu Kuo, Vincent Chin-Hung Chen, Jennifer Wong, Lynn Ponton, Tsu-Nai Wang
BACKGROUND: Both virus-induced asthma and enterovirus (EV) infection are common in children; however, the relationship between EV infection and virus-induced asthma has not been systematically investigated in a cohort study. This nationwide population-based cohort study investigated the association between EV infection and asthma. METHODS: We used data from the Taiwan National Health Insurance Research Database. The study sample consisted of insured children who were younger than 18 years and had EV infection between 1997 and 2013 and were followed until December 2013...
January 25, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29371346/full-genome-sequence-of-an-enterovirus-71-strain-isolated-from-a-throat-swab-from-a-child-with-severe-hand-foot-and-mouth-disease-in-changzhou-china-in-2017
#9
Qiong Li, Feng-Ming Wang, Xu-Jian Mao, Ping Yao, Xia Jiang, Jing-Yi Jiang, Cong Chen, Fei-Fei Hu, Jun-Hong Li
The full-length genome sequence of a human enterovirus 71 (EV71) strain (EV71/CZTN01/CHN/2017) was isolated from a throat swab from a child in Changzhou, China, in 2017. According to the phylogenetic analyses, the full-genome sequence in this study belongs to sub-subgenotype C4a.
January 25, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29363365/a-comparative-analysis-of-immunogenicity-and-safety-of-an-enterovirus-71-vaccine-between-children-aged-3-5-years-and-infants-aged-6-35-months
#10
Wei Gu, Gang Zeng, Yue-Mei Hu, Yuan-Sheng Hu, Ying Zhang, Ya-Ling Hu, Yang Wang, Jing-Xin Li, Feng-Cai Zhu
BACKGROUND: The Sinovac enterovirus 71 (EV71) vaccine has shown good safety, immunogenicity, and efficacy in infants aged 6-35 months, whom are considered as the priority of the target population. However, 3-5 years old children accounted for approximately 30% of HFMD cases and are also worth our attention. METHODS: A randomized, double-blind, placebo-controlled, batch-to-batch consistency clinical trial enrolling 1400 participants aged 6-59 months was performed...
January 24, 2018: Expert Review of Vaccines
https://www.readbyqxmd.com/read/29362406/epidemiological-and-serological-surveillance-of-hand-foot-and-mouth-disease-in-shanghai-china-2012-2016
#11
Jiayu Wang, Zheng Teng, Xiaoqing Cui, Chongshan Li, Hao Pan, Yaxu Zheng, Shenghua Mao, Yuying Yang, Limeng Wu, Xiaokui Guo, Xi Zhang, Yongzhang Zhu
Aside from enterovirus 71 (EV71) and coxsackie virus A16 (CV-A16), viruses that are known to cause hand-foot-and-mouth disease (HFMD), epidemiological profiles of other enteroviruses that induce HFMD are limited. We collected 9949 laboratory surveillance HFMD cases and 1230 serum samples from infants and children in Shanghai from 2012-2016. Since 2013, CV-A6 has displaced EV71 and CV-A16 to become the predominant serotype. Interestingly, novel epidemiological patterns in EV71 and CV-A16 infections were observed, with one large peak in both 2012 and 2014, followed by two smaller peaks in the respective following years (2013 and 2015)...
January 24, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29356992/identification-and-production-of-mouse-scfv-to-specific-epitope-of-enterovirus-71-virion-protein-2-vp2
#12
Jeeraphong Thanongsaksrikul, Potjanee Srimanote, Pongsri Tongtawe, Kittirat Glab-Ampai, Aijaz Ahmad Malik, Oratai Supasorn, Phatcharaporn Chiawwit, Yong Poovorawan, Wanpen Chaicumpa
Enterovirus-71 (EV71) and coxsackievirus-A16 (CA16) frequently cause hand-foot-mouth disease (HFMD) epidemics among infants and young children. CA16 infections are usually mild, while EV71 disease may be fatal due to neurologic complications. As such, the ability to rapidly and specifically recognize EV71 is needed to facilitate proper case management and epidemic control. Accordingly, the aim of this study was to generate antibodies to EV71-virion protein-2 (VP2) by phage display technology for further use in specific detection of EV71...
January 22, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29324904/prohibitin-plays-a-critical-role-in-enterovirus-71-neuropathogenesis
#13
Issac Horng Khit Too, Isabelle Bonne, Eng Lee Tan, Justin Jang Hann Chu, Sylvie Alonso
A close relative of poliovirus, enterovirus 71 (EV71) is regarded as an important neurotropic virus of serious public health concern. EV71 causes Hand, Foot and Mouth Disease and has been associated with neurological complications in young children. Our limited understanding of the mechanisms involved in its neuropathogenesis has hampered the development of effective therapeutic options. Here, using a two-dimensional proteomics approach combined with mass spectrometry, we have identified a unique panel of host proteins that were differentially and dynamically modulated during EV71 infection of motor-neuron NSC-34 cells, which are found at the neuromuscular junctions where EV71 is believed to enter the central nervous system...
January 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29298696/enhanced-human-enterovirus-71-infection-by-endocytosis-inhibitors-reveals-multiple-entry-pathways-by-enterovirus-causing-hand-foot-and-mouth-diseases
#14
Meichun Yuan, Jingjing Yan, Jingna Xun, Chong Chen, Yuling Zhang, Min Wang, Wenqi Chu, Zhigang Song, Yunwen Hu, Shuye Zhang, Xiaoyan Zhang
BACKGROUND: Human enterovirus 71 (EV71) was previously known to enter cells through clathrin or caveolar mediated endocytic pathways. However, we observed chlorpromazine (CPZ) or dynasore (DNS), which inhibit clathrin and dynamin mediated endocytosis, did not suppress EV71 cell entry in particular cell types. So the current knowledge of entry mechanisms by EV71 is not complete. METHODS: Viral infection was examined by flow cytometry or end-point dilution assays...
January 3, 2018: Virology Journal
https://www.readbyqxmd.com/read/29258646/epidemiology-of-hand-foot-and-mouth-disease-in-china-2008-to-2015-prior-to-the-introduction-of-ev-a71-vaccine
#15
Bingyi Yang, Fengfeng Liu, Qiaohong Liao, Peng Wu, Zhaorui Chang, Jiao Huang, Lu Long, Li Luo, Yu Li, Gabriel M Leung, Benjamin J Cowling, Hongjie Yu
IntroductionHand, foot and mouth disease (HFMD) is usually caused by several serotypes from human enterovirus A species, including enterovirus 71 (EV-A71) and coxsackievirus A16 (CV-A16). Two inactivated monovalent EV-A71 vaccines have been recently licensed in China and monovalent CV-A16 vaccine and bivalent EV-A71 and CV-A16 vaccine are under development. Methods: Using notifications from the national surveillance system, we describe the epidemiology and dynamics of HFMD in the country, before the introduction of EV-A71 vaccination, from 2008 through 2015...
December 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/29242411/a-retrospective-study-of-331-deaths-in-children-with-severe-hand-foot-and-mouth-disease-in-guangxi-china
#16
Zhi-Yong Yang, Xiu-Qi Chen, Dan Sun, Dan Wei
OBJECTIVE: To analyze the clinical features of children with hand foot and mouth disease (HFMD) who died. METHODS: 331 deaths due to HFMD were included in this retrospective study; 15 autopsies were performed. RESULTS: Most cases were seen in children aged below 3 years, and with enterovirus 71 infection (91%). The mean (SD) duration of HFMD from onset to death was 3.7(2.9) days. The mean (SD) age of fast progressors (from onset to death less than 4 days) was 17...
December 14, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/29238324/immunopathogenesis-and-virus-host-interactions-of-enterovirus-71-in-patients-with-hand-foot-and-mouth-disease
#17
REVIEW
Jonathan A Cox, Julian A Hiscox, Tom Solomon, Mong-How Ooi, Lisa F P Ng
Enterovirus 71 (EV71) is a global infectious disease that affects millions of people. The virus is the main etiological agent for hand, foot, and mouth disease with outbreaks and epidemics being reported globally. Infection can cause severe neurological, cardiac, and respiratory problems in children under the age of 5. Despite on-going efforts, little is known about the pathogenesis of EV71, how the host immune system responds to the virus and the molecular mechanisms behind these responses. Moreover, current animal models remain limited, because they do not recapitulate similar disease patterns and symptoms observed in humans...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29235129/association-of-gene-polymorphisms-of-pattern-recognition-receptor-signalling-pathway-with-the-risk-and-severity-of-hand-foot-and-mouth-disease-caused-by-enterovirus-71-in-chinese-han-population
#18
Ya-Ping Li, Mei Li, Xiao-Li Jia, Hui-Ling Deng, Wen-Jun Wang, Feng-Ping Wu, Jun Wang, Shuang-Suo Dang
Hand, foot and mouth disease (HFMD) caused by enterovirus 71 (EV71) presents with a wide variety of clinical manifestations. Host immune response is a factor that influences disease susceptibility and severity. We investigated the potential association of gene polymorphisms in the pattern recognition receptor (PRR) pathway with the risk and severity of EV71 infection. A total of 180 EV71 HFMD cases (108 severe case; 72 mild cases) were enrolled. A group of 201 sex- and age-matched children was included as a control...
December 12, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29231154/enteropathogens-and-gut-inflammation-in-asymptomatic-infants-and-children-in-different-environments-in-southern-india
#19
Ira Praharaj, R Revathy, Rini Bandyopadhyay, Blossom Benny, Mohammad Azharuddin Ko, Jie Liu, Eric R Houpt, Gagandeep Kang
Children in poor environmental conditions are exposed early and often to enteric pathogens, but within developing countries, heterogeneity in enteropathogen exposure in different settings and communities is rarely addressed. We tested fecal samples from healthy infants and children from two different environments in the same Indian town for gut enteropathogens and biomarkers of gut inflammation. A significantly higher proportion of infants and children from a poor semi-urban neighborhood (93%) had one or more enteropathogens than those from a medical college campus (71...
December 11, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29231065/serum-interleukin-6-levels-as-an-indicator-of-aseptic-meningitis-among-children-with-enterovirus-71-induced-hand-foot-and-mouth-disease
#20
Joo Young Lee, Minji Son, Jin Han Kang, Ui Yoon Choi
OBJECTIVES: The enterovirus EV71 is a major pathogen of hand, foot, and mouth disease (HFMD) in children. Aseptic meningitis is the most common neurologic complication of EV71-induced HFMD. Lumbar puncture is a crucial procedure in the diagnosis of aseptic meningitis. It is often performed based on physicians' clinical suspicion. A diagnostic method that can aid in deciding whether this procedure should be performed is necessary. Cytokines are speculated to be associated with neurologic complications...
December 14, 2017: Postgraduate Medicine
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