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Enterovirus 71

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https://www.readbyqxmd.com/read/28335535/enterovirus-71-neutralizing-antibodies-seroepidemiological-research-among-children-in-guangzhou-china-between-2014-and-2015-a-cross-sectional-study
#1
Dingmei Zhang, Yan Chen, Xiashi Chen, Zhenjian He, Xun Zhu, Yuantao Hao
A hand-foot-mouth disease outbreak occurred in 2014 around Guangdong. The purpose of this study was investigating the status and susceptibility of infectious neutralizing antibodies to enterovirus 71 among children so as to provide scientific evidence for the population immunity level of hand-foot-mouth disease and prepare for enterovirus 71 vaccination implementation. Serum specimens were collected from children in communities from January 2014 to March 2015 in Guangzhou. A total of 197 serum samples from children 1-5 years old were collected for this cross-sectional study via non-probabilistic sampling from the database of Chinese National Science and Technique Major Project...
March 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28303920/the-golgi-protein-acbd3-facilitates-enterovirus-71-replication-by-interacting-with-3a
#2
Xiaobo Lei, Xia Xiao, Zhenzhen Zhang, Yijie Ma, Jianli Qi, Chao Wu, Yan Xiao, Zhuo Zhou, Bin He, Jianwei Wang
Enterovirus 71 (EV71) is a human pathogen that causes hand, foot, mouth disease and neurological complications. Although EV71, as well as other enteroviruses, initiates a remodeling of intracellular membrane for genomic replication, the regulatory mechanism remains elusive. By screening human cDNA library, we uncover that the Golgi resident protein acyl-coenzyme A binding domain-containing 3 (ACBD3) serves as a target of the 3A protein of EV71. This interaction occurs in cells expressing 3A or infected with EV71...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28302925/best-practices-to-prevent-transmission-and-control-outbreaks-of-hand-foot-and-mouth-disease-in-childcare-facilities-a-systematic-review
#3
REVIEW
J Hy Chan, C K Law, E Hamblion, H Fung, J Rudge
INTRODUCTION: Hand, foot, and mouth disease continues to cause seasonal epidemics in the Asia-Pacific Region. Since the current Enterovirus 71 vaccines do not provide cross-protection for all Enterovirus species that cause hand, foot, and mouth disease, there is an urgent need to identify appropriate detection tools and best practice to prevent its transmission and to effectively control its outbreaks. This systematic review aimed to identify characteristics of outbreak and assess the impact and effectiveness of detection tools and public health preventive measures to interrupt transmission...
March 17, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28298229/a-novel-benzo-heterocyclic-amine-derivative-n30-inhibits-influenza-virus-replication-by-depression-of-inosine-5-monophospate-dehydrogenase-activity
#4
Jin Hu, Linlin Ma, Huiqiang Wang, Haiyan Yan, Dajun Zhang, Zhuorong Li, Jiandong Jiang, Yuhuan Li
BACKGROUD: Influenza virus is still a huge threat to the world-wide public health. Host inosine-5'- monophosphate dehydrogenase (IMPDH) involved in the synthesis of guanine nucleotides, is known to be a potential target to inhibit the replication of viruses. Herein, we evaluated antiviral activity of a benzo-heterocyclic amine derivative N30, which was designed to inhibit IMPDH. RESULTS: The results demonstrated that N30 inhibited the replication of H1N1, H3N2, influenza B viruses, including oseltamivir and amantadine resistant strains in vitro...
March 15, 2017: Virology Journal
https://www.readbyqxmd.com/read/28278415/paediatric-active-enhanced-disease-surveillance-inaugural-annual-report-2014
#5
Yvonne A Zurynski, Jocelynne E McRae, Helen E Quinn, Nicholas J Wood, Kristine K Macartney
INTRODUCTION: The Paediatric Active Enhanced Disease Surveillance (PAEDS) network is a hospital-based active surveillance system employing prospective case ascertainment of selected uncommon vaccine preventable diseases and potential adverse events following immunisation (AEFI). PAEDS enhances other Australian surveillance systems by providing prospective detailed clinical and laboratory data for the same child. METHODS: Specialist surveillance nurses screen hospital admissions, emergency department records, laboratory and other data, to prospectively identify hospitalised children aged under 15 years in 5 paediatric tertiary referral hospitals in New South Wales, Victoria, South Australia, Western Australia and Queensland...
September 30, 2016: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28277928/the-uncoupling-of-catalysis-and-translocation-in-the-viral-rna-dependent-rna-polymerase
#6
Bo Shu, Peng Gong
The nucleotide addition cycle of nucleic acid polymerases includes two major events: the pre-chemistry active site closure leading to the addition of one nucleotide to the product chain; the post-chemistry translocation step moving the polymerase active site one position downstream on its template. In viral RNA-dependent RNA polymerases (RdRPs), structural and biochemical evidences suggest that these two events are not tightly coupled, unlike the situation observed in A-family polymerases such as the bacteriophage T7 RNA polymerase...
March 1, 2017: RNA Biology
https://www.readbyqxmd.com/read/28262332/report-from-the-world-health-organization-s-third-product-development-for-vaccines-advisory-committee-pdvac-meeting-geneva-8-10th-june-2016
#7
Birgitte K Giersing, Johan Vekemans, Samantha Nava, David C Kaslow, Vasee Moorthy
The third meeting of WHO's Product Development for Vaccines Advisory Committee (PDVAC) was held in June 2016, with a remit to revisit the pathogen areas for which significant progress has occurred since recommendations from the 2015 meeting, as well as to consider new advances in the development of vaccines against other pathogens. Since the previous meeting, significant progress has been made with regulatory approvals of the first malaria and dengue vaccines, and the first phase III trials of a respiratory syncytial virus (RSV) vaccine candidate has started in the elderly and pregnant women...
March 2, 2017: Vaccine
https://www.readbyqxmd.com/read/28253362/correction-enterovirus-71-protease-2apro-targets-mavs-to-inhibit-anti-viral-type-i-interferon-responses
#8
Bei Wang, Xueyan Xi, Xiaobo Lei, Xiaoyan Zhang, Sheng Cui, Jianwei Wang, Qi Jin, Zhendong Zhao
[This corrects the article DOI: 10.1371/journal.ppat.1003231.].
March 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28250116/a-neonatal-murine-model-of-coxsackievirus-a6-infection-for-evaluation-of-antiviral-and-vaccine-efficacy
#9
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/28248924/microrna-screening-identifies-mir-134-as-a-regulator-of-poliovirus-and-enterovirus-71-infection
#10
Nichole Lynn Orr-Burks, Byoung-Shik Shim, Weilin Wu, Abhijeet A Bakre, Jon Karpilow, Ralph A Tripp
MicroRNAs (miRNAs) regulate virus replication through multiple mechanisms. Poliovirus causes a highly debilitating disease and though global efforts to eradicate polio have sharply decreased polio incidence, unfortunately three countries (Afghanistan, Nigeria and Pakistan) remain polio-endemic. We hypothesize that understanding the host factors involved in polio replication will identify novel prophylactic and therapeutic targets against polio and related viruses. In this data set, employing genome wide screens of miRNA mimics and inhibitors, we identified miRNAs which significantly suppressed polio replication...
March 1, 2017: Scientific Data
https://www.readbyqxmd.com/read/28236071/recombinant-heat-shock-protein-78-enhances-enterovirus-71-propagation-in-vero-cells-and-is-induced-in-sk-n-sh-cells-during-the-infection
#11
Bing Zhu, Tiantian Xu, Zhengfang Lin, Changbing Wang, Yinghua Li, Mingqi Zhao, Liang Hua, Misi Xiao, Ning Deng
Enterovirus 71 (EV71) is one of the major causative agents of hand, foot and mouth disease (HFMD), which mainly occurs in children. Children with EV71 infection can develop severe neurological diseases. Heat shock protein 78 (HSP78) facilitates proper protein folding during viral propagation and is induced during virus infection. Nevertheless, the role that HSP78 plays during EV71 infection is still unclear. In this study, recombinant HSP78 protein was expressed in a prokaryotic expression system and used for exploring the interaction between HSP78 and EV71 propagation...
February 24, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28220872/human-enterovirus-71-protein-interaction-network-prompts-antiviral-drug-repositioning
#12
Lu Han, Kang Li, Chaozhi Jin, Jian Wang, Qingjun Li, Qiling Zhang, Qiyue Cheng, Jing Yang, Xiaochen Bo, Shengqi Wang
As a predominant cause of human hand, foot, and mouth disease, enterovirus 71 (EV71) infection may lead to serious diseases and result in severe consequences that threaten public health and cause widespread panic. Although the systematic identification of physical interactions between viral proteins and host proteins provides initial information for the recognition of the cellular mechanism involved in viral infection and the development of new therapies, EV71-host protein interactions have not been explored...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28218309/suramin-interacts-with-the-positively-charged-region-surrounding-the-5-fold-axis-of-the-ev-a71-capsid-and-inhibits-multiple-enterovirus-a
#13
Peijun Ren, Yimei Zheng, Wenqi Wang, Liping Hong, Fran├žis Delpeyroux, Fernando Arenzana-Seisdedos, Ralf Altmeyer
Suramin was previously shown to bind to the EV-A71 capsid through its naphthalenetrisulfonic acid groups, thereby reducing virus-cell binding and inhibiting viral replication. Here, we identify VP1-145 as the critical amino acid that accounts for the differential sensitivity of EVA-71 viruses to suramin. A single Q or G to E substitution at VP1-145 results in an approximately 30-fold shift of IC50 or IC90 values reproducing the inhibition profile observed with field isolates expressing either the 145Q or E mutation...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28217559/a-novel-enterovirus-71-ev71-virulence-determinant-the-69th-residue-of-3c-protease-modulates-pathogenicity
#14
Bingqing Li, Yingying Yue, Yajie Zhang, Zenglin Yuan, Peng Li, Nannan Song, Wei Lin, Yan Liu, Lichuan Gu, Hong Meng
Human enterovirus type 71 (EV71), the major causative agent of hand-foot-and-mouth disease, has been known to cause fatal neurological complications. Unfortunately, the reason for neurological complications that have been seen in fatal cases of the disease and the relationship between EV71 virulence and viral genetic sequences remains largely undefined. The 3C protease (3C(pro)) of EV71 plays an irreplaceable role in segmenting the precursor polyprotein during viral replication, and intervening with host life activity during viral infection...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28214745/rapid-detection-and-quantification-of-enterovirus-71-by-a-portable-surface-plasmon-resonance-biosensor
#15
Briliant Adhi Prabowo, Robert Y L Wang, Muhammad Khari Secario, Po-Ting Ou, Azharul Alom, Jia-Jung Liu, Kou-Chen Liu
This study presents the first report on a label-free detection and rapid quantification method for human enterovirus 71 (EV71) using a portable surface plasmon resonance (SPR) system. The SPR sensor instrument was configured to run on low power in a miniaturized platform to improve the device portability for a wider application both in laboratories and in the field. A color tunable organic light emitting diode in red spectrum was attached on a trapezoidal prism for the disposable light source module. The SPR signal processing using integration area under the reflectivity curve is applied for optimum signal to noise ratio (SNR) enhancement...
June 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28212620/clinical-manifestations-of-severe-enterovirus-71-infection-and-early-assessment-in-a-southern-china-population
#16
Si-da Yang, Pei-Qing Li, Yi-Min Li, Wei Li, Wen-Ying Lai, Cui-Ping Zhu, Jian-Ping Tao, Li Deng, Hong-Sheng Liu, Wen-Cheng Ma, Jia-Ming Lu, Yan Hong, Yu-Ting Liang, Jun Shen, Dan-Dan Hu, Yuan-Yuan Gao, Yi Zhou, Min-Xiong Situ, Yan-Ling Chen
BACKGROUND: Enterovirus 71 (EV-A71) shows a potential of rapid death, but the natural history of the infection is poorly known. This study aimed to examine the natural history of EV-A71 infection. METHODS: This was a prospective longitudinal observational study performed between January 1(st) and October 31(st), 2012, at three hospitals in Guangdong, China. Subjects with positive EV-A71 RNA laboratory test results were included. Disease progression was documented with MRI, autopsies, and follow-up...
February 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28198671/transcriptome-analysis-reveals-dynamic-changes-in-coxsackievirus-a16-infected-hek-293t-cells
#17
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/28179628/the-impact-of-hand-foot-and-mouth-disease-control-policies-in-singapore-a-qualitative-analysis-of-public-perceptions
#18
Karen Siegel, Alex R Cook, Hanh La
Hand foot and mouth disease (HFMD) is a widespread pediatric disease in Asia. Most cases are relatively mild and caused by Coxsackie viruses, but in epidemics caused by Enterovirus 71, severe complications can occur. In response to the deaths of dozens of children in a 1997 outbreak (Podin in BMC Public Health 6:180,1 Abubakar in Virus Res 61(1):1-9,2 WHO in3), Singapore practices childcare centre surveillance, case-isolation, and short-term closure of centres. We conducted 44 in-depth interviews with teachers, principals, and parents at four childcare centres in Singapore to better understand experiences with current control policies...
February 8, 2017: Journal of Public Health Policy
https://www.readbyqxmd.com/read/28168168/enterovirus-71-infection-and-vaccines
#19
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/28150210/an-ultrasensitive-biosensing-platform-employing-acetylcholinesterase-and-gold-nanoparticles
#20
Dingbin Liu, Xiaoyuan Chen
Enzyme-linked immunosorbent assay (ELISA) is a well-known strategy for biomarker detection with a color change, which can be seen by the naked eyes. However, the moderate sensitivity of conventional ELISA limits its applications in many cases where the concentrations of biomarker are very low, such as cancer diagnosis. Here we describe an ultrasensitive colorimetric assay based on acetylcholinesterase (AChE)-catalyzed hydrolysis reaction, whose products trigger the aggregation of gold nanoparticles (AuNPs), causing a distinct color change of the solution from red to purple...
2017: Methods in Molecular Biology
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