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Hand,foot,and mouth disease

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https://www.readbyqxmd.com/read/28814774/molecular-characterization-of-two-novel-echovirus-18-recombinants-associated-with-hand-foot-mouth-disease
#1
Haihao Zhang, Yilin Zhao, Hongbo Liu, Hao Sun, Xiaoqin Huang, Zhaoqing Yang, Shaohui Ma
Human echovirus 18 (E-18) is a member of the enterovirus B species. To date, sixteen full-length genome sequences of E-18 are available in the GenBank database. In this study, we describe the complete genomic characterization of two E-18 strains isolated in Yunnan, China. Pairwise comparisons of the nucleotide sequences and the deduced amino acid sequences revealed that the two Yunnan E-18 strains had 87.5% nucleotide identity and 96.3-96.5% amino acid identity with the Chinese strain. Phylogenetic and bootscanning analyses revealed the two E-18 strains had the highest identity with other several EV-B serotypes than the other E-18 strains in the P3 coding region, especially, 3B region of the Swine Vesicular disease virus (SVDV) strain HK70, indicated that frequent intertypic recombination might have occurred in the two Yunnan strains...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808990/onychomadesis-in-a-9-month-old-boy-with-hand-foot-mouth-disease
#2
Ibrahim Mortada, Rola Mortada, Mohamad Al Bazzal
BACKGROUND: Nail abnormalities in childhood are generally uncommon. Recently, onychomadesis is described as a rare, late complication of hand-foot-mouth disease, which is a viral illness commonly seen in the pediatric age group. It is therefore important to elucidate the presentation of this entity, especially in the context of the hand-foot-mouth disease. CASE PRESENTATION: We report a case of onychomadesis in a 9-month old Lebanese boy who presented to the emergency department with rapidly progressing nail changes involving all four extremities...
August 14, 2017: International Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28776773/hand-foot-and-mouth-disease-in-adult-patients
#3
I Neri, M A Chessa, A Virdi, A Patrizi
We read with great interest the paper by Balestri et al(1) "atypical presentation of enterovirus infection in adults: outbreak of Hand, Foot, Mouth and Scalp disease in Northern Italy" which confirms the adult involvement in hand, foot and mouth disease (HFMD). This article is protected by copyright. All rights reserved.
August 3, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28776768/atypical-presentation-of-enterovirus-infection-in-adults-outbreak-of-hand-foot-mouth-and-scalp-disease-in-northern-italy
#4
R Balestri, M Bellino, L Landini, L Tasin, L Rizzoli, L Speziali, P Bauer, M C Sicher, G Rech, C R Girardelli
We read with great interest the article entitled 'Hand, foot and mouth disease: an overview of clinical features in adult patients' published by I. Neri et al. in the JEADV, in which the authors reported the atypical features of hand, foot and mouth disease (HFMD)observed over 16 months. We recently witnessed an outbreak of atypical HFDM with well defined features, almost exclusively affecting adults, and we would therefore like to report and compare our experience. This article is protected by copyright. All rights reserved...
August 4, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28774989/complete-genome-sequences-of-four-coxsackievirus-a16-strains-isolated-from-four-children-with-severe-hand-foot-and-mouth-disease
#5
Shao-Jian Xu, Hong Yang, Xiang-Jie Yao, Hai-Long Zhang, Yan Ren, Wei Wu, Jun Meng, Hong-Biao Chen, Ya-Qing He, Ren-Li Zhang, Qi-Hui Lin, Long Chen
Here, we report the complete genome sequences of four coxsackievirus A16 strains isolated from four children with severe hand, foot, and mouth disease. Three of them were assigned to subgenotype B1b based on phylogenetic analysis of the VP1 gene, and the other one belonged to subgenotype B1a.
August 3, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28774367/-myocardial-protective-effect-of-l-carnitine-in-children-with-hand-foot-and-mouth-disease-caused-by-coxsackie-a16-virus
#6
Ya-Jie Cui, Chun-Lan Song, Fang Chen, Peng Li, Yi-Bing Cheng
OBJECTIVE: To investigate the myocardial protective effect of L-carnitine in children with hand, foot and mouth disease (HFMD) caused by Coxsackie A16 virus and possible mechanisms. METHODS: A total of 60 HFMD children with abnormal myocardial enzyme after Coxsackie A16 virus infection were enrolled and randomly divided into L-carnitine group and fructose-1,6-diphosphate group (fructose group), with 30 children in each group. The two groups were given L-carnitine or fructose diphosphate in addition to antiviral and heat clearance treatment...
August 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28774366/-association-between-s100b-gene-polymorphisms-and-hand-foot-and-mouth-disease-caused-by-enterovirus-71-infection
#7
Jing Li, Ruo-Bing Shan, Rui-Hai Liu, Ying-Jun Xu, Ni-Yan Qu, Gui-Mei Pan, Na Zhang, Na Yang, Zhen-Zhen Chen, Wen-Xiang Zhang, Zi-Pu Li
OBJECTIVE: To investigate the association between rs9722 polymorphisms in the S100B gene and hand, foot and mouth disease (HFMD) caused by enterovirus 71. METHODS: A total of 124 HFMD children with enterovirus 71 infection were enrolled as subjects, and 56 healthy children were enrolled as control group. The rs9722 polymorphisms in the S100B gene were detected for both groups, and the serum level of S100B protein was measured for 74 HFMD children. RESULTS: The rs9722 locus of the S100B gene had three genotypes, CC, CT, and TT, and the genotype frequencies were in accordance with Hardy-Weinberg equilibrium...
August 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28771766/impact-of-coxsackievirus-a6-emergence-on-hand-foot-and-mouth-disease-epidemic-in-osaka-city-japan
#8
Daiki Kanbayashi, Atsushi Kaida, Seiji P Yamamoto, Yuki Hirai, Hideyuki Kubo, Ryoko Fujimori, Noritaka Hakui, Hidetetsu Hirokawa, Nobuhiro Iritani
Hand, foot, and mouth disease (HFMD) is an acute febrile illness characterized by fever; sore throat; and vesicular eruptions on the hands, feet, and oral mucosa. Until 2010, HFMD was predominantly associated with enterovirus (EV) A71 and coxsackievirus (CV) A16 in Japan. In 2011, CV-A6 emerged as a primary causative agent, causing the largest HFMD epidemic in Japan since 1981. Since then, CV-A6 has caused large HFMD epidemics every 2 years. The phylogenetic analysis of complete Viral Protein 1 (VP1) sequences revealed that most CV-A6 strains detected from 2011 to 2015 in Osaka City were classified into a different clade compared with CV-A6 strains detected from 1999 until 2009...
August 3, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28756983/morphological-characteristics-of-fatal-pediatric-hand-foot-and-mouth-disease-a-clinicopathological-study-with-related-receptors-of-ev71
#9
Yong-Yao Gu, Ke Shi, Sha Yao, Xia Yang, Yu-Hui Liu, Lan Tang, Yi-Wu Dang, Gang Chen, Zhen-Bo Feng, Hong-Bo Pan
OBJECTIVE: To investigate the pathological features of fatal pediatric hand foot and mouth disease (HFMD). METHODS: The histopathological features of HFMD were first summarized from literature, and then confirmed by in-house autopsies. Furthermore, immunohistochemistry was conducted to detect the distribution and expression level of two enterovirus 71 (EV71) receptors scavenger receptor class B, member 2 (SCARB2), and P-selectin glycoprotein ligand-1 (PSGL1) in the samples of autopsies...
July 6, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28756324/a-colorimetric-and-electrochemical-immunosensor-for-point-of-care-detection-of-enterovirus-71
#10
Yuan-Hui Hou, Jia-Jia Wang, Yong-Zhong Jiang, Cheng Lv, Li Xia, Shao-Li Hong, Miao Lin, Yi Lin, Zhi-Ling Zhang, Dai-Wen Pang
Point-of-care detection of human enterovirus 71 (EV71), the major pathogen that causes hand, foot, and mouth disease (HFMD) among children, is urgently needed for early diagnosis and control of related epidemics. A colorimetric and electrochemical immunosensor for point-of-care detection of EV71 has been developed based on dual-labeled magnetic nanobeads amplification. The dual-labeled magnetic nanobeads (DL-MBs) are fabricated by simultaneous immobilization of EV71 monoclonal antibody (mAb) and horseradish peroxidase (HRP) on magnetic nanobeads...
July 14, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28750058/human-enteroviruses-associated-with-and-without-diarrhea-in-thailand-between-2010-and-2016
#11
Jira Chansaenroj, Supansa Tuanthap, Thanundorn Thanusuwannasak, Ausanee Duang-In, Sirapa Klinfueng, Napha Thaneskongtong, Viboonsuk Vutithanachot, Sompong Vongpunsawad, Yong Poovorawan
Non-bacterial acute gastroenteritis (AGE) associated with virus infection affects individuals living in developing countries, especially children. To investigate whether shedding of certain human enterovirus (EV) is more frequently detected in the stool of individuals with AGE of unknown etiology than individuals without AGE symptoms, we tested fecal samples collected from 2,692 individuals with diarrhea between January 2010 and December 2016. Samples were tested for rotavirus, norovirus, and EV by reverse-transcription polymerase chain reaction (RT-PCR) and adenovirus by PCR...
2017: PloS One
https://www.readbyqxmd.com/read/28745308/coxsackievirus-a16-utilizes-cell-surface-heparan-sulfate-glycosaminoglycans-as-its-attachment-receptor
#12
Xueyang Zhang, Jinping Shi, Xiaohua Ye, Zhiqiang Ku, Chao Zhang, Qingwei Liu, Zhong Huang
Coxsackievirus A16 (CVA16) is one of the major pathogens responsible for hand, foot and mouth disease, which affects more than two million children in the Asian-Pacific region annually. Previous studies have shown that scavenger receptor B2 is a functional receptor for CVA16 that facilitates the uncoating process. However, it remains unclear whether other receptors are required for efficient CVA16 infection. In this study, by using a variety of assays we demonstrated that CVA16 utilizes surface heparan sulfate glycosaminoglycans as its attachment receptor...
July 26, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28732070/characterization-of-human-enterovirus71-virus-like-particles-used-for-vaccine-antigens
#13
Dandan Zhao, Bo Sun, Shiyang Sun, Bin Fu, Chuntian Liu, Dawei Liu, Yanfei Chu, Youlei Ma, Lu Bai, Yongge Wu, Yan Zhou, Weiheng Su, Ali Hou, Linjun Cai, Fei Xu, Wei Kong, Chunlai Jiang
Human enterovirus 71 (EV71) is a major causative pathogen of hand, foot and mouth disease (HFMD) and has caused outbreaks with significant mortality among young children in the Asia-Pacific region in recent years. Towards developing a vaccine for this disease, we have expressed and purified EV71 virus-like particles (VLPs), which resemble the authentic virus in appearance, capsid structure and protein sequence, from insect cells (Sf9) using a multistep chromatography process. We demonstrated intracellular localization of the VLPs in host cells by in situ immunogold detection, electron microscopy and immunofluorescence...
2017: PloS One
https://www.readbyqxmd.com/read/28724943/aim2-inflammasome-mediated-pyroptosis-in-enterovirus-a71-infected-neuronal-cells-restricts-viral-replication
#14
Thinesshwary Yogarajah, Kien Chai Ong, David Perera, Kum Thong Wong
Encephalomyelitis is a well-known complication of hand, foot, and mouth disease (HFMD) due to Enterovirus 71 (EV71) infection. Viral RNA/antigens could be detected in the central nervous system (CNS) neurons in fatal encephalomyelitis but the mechanisms of neuronal cell death is not clearly understood. We investigated the role of absent in melanoma 2 (AIM2) inflammasome in neuronal cell death, and its relationship to viral replication. Our transcriptomic analysis, RT-qPCR, Western blot, immunofluorescence and flow cytometry studies consistently showed AIM2 gene up-regulation and protein expression in EV-A71-infected SK-N-SH cells...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724375/bilateral-idiopathic-retinal-vasculitis-following-coxsackievirus-a4-infection-a-case-report
#15
Izumi Mine, Manzo Taguchi, Yutaka Sakurai, Masaru Takeuchi
BACKGROUND: Coxsackieviruses are members of a group of viruses called the enteroviruses, which may cause respiratory and gastrointestinal symptoms, erythema, meningoencephalitis, myocarditis, pericarditis, and myositis. Unilateral acute idiopathic maculopathy caused by coxsackievirus A16 has been associated with hand, foot, and mouth disease, but only a few reports describe retinitis associated with coxsackievirus serotype B3 or B4. We report a case of bilateral multifocal obstructive retinal vasculitis that developed after coxsackievirus A4 infection...
July 19, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28712404/-polymorphisms-of-tlr7-rs3853839-and-rs179010-are-associated-with-susceptibility-to-and-severity-of-hand-foot-and-mouth-disease-caused-by-enterovirus-71-in-male-children
#16
Yaping Li, Song Zhai, Mei Li, Yuan Wang, Tong Lu, Huiling Deng, Xin Zhang, Shuangsuo Dang
Objective To investigate whether the polymorphisms of TLR7/MyD88 signaling pathway is associated with the susceptibility to and severity of hand, foot and mouth disease (HFMD) caused by enterovirus 71 (EV71) in children. Methods We collected 180 EV71 HFMD cases and 201 healthy controls from both the Second Affiliated Hospital of Xi'an Jiaotong University and Xi'an Children's Hospital. The genotypes including rs3853839, rs179010 of TLR7, and rs7744 of MyD88 were detected in the 381 samples by SNPscan kit. Results The susceptibility risk (OR=2...
July 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28710409/machine-learning-algorithms-for-risk-prediction-of-severe-hand-foot-mouth-disease-in-children
#17
Bin Zhang, Xiang Wan, Fu-Sheng Ouyang, Yu-Hao Dong, De-Hui Luo, Jing Liu, Long Liang, Wen-Bo Chen, Xiao-Ning Luo, Xiao-Kai Mo, Lu Zhang, Wen-Hui Huang, Shu-Fang Pei, Bao-Liang Guo, Chang-Hong Liang, Zhou-Yang Lian, Shui-Xing Zhang
The identification of indicators for severe HFMD is critical for early prevention and control of the disease. With this goal in mind, 185 severe and 345 mild HFMD cases were assessed. Patient demographics, clinical features, MRI findings, and laboratory test results were collected. Gradient boosting tree (GBT) was then used to determine the relative importance (RI) and interaction effects of the variables. Results indicated that elevated white blood cell (WBC) count > 15 × 10(9)/L (RI: 4(9).47, p < 0...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28705680/characterization-of-significant-molecular-determinants-of-virulence-of-enterovirus-71-sub-genotype-b4-in-rhabdomyosarcoma-cells
#18
Pinn Tsin Isabel Yee, Reham Ahmed Hashim Mohamed, Seng-Kai Ong, Kuan Onn Tan, Chit Laa Poh
One of the leading causes of the hand, foot and mouth disease (HFMD) is Enterovirus 71 (EV-A71), displaying symptoms such as fever and ulcers in children but some strains can produce cardiopulmonary oedema which leads to death. There is no FDA-approved vaccine for prevention of severe HFMD. The molecular determinants of virulence for EV-A71 are unclear. It could be a single or a combination of amino acids that determines virulence in different EV-A71 genotype/sub-genotypes. Several EV-A71 strains bearing single nucleotide (nt) mutations were constructed and the contribution of each mutation to virulence was evaluated...
July 10, 2017: Virus Research
https://www.readbyqxmd.com/read/28704524/prevalence-of-enteroviruses-in-healthy-populations-and-excretion-of-pathogens-in-patients-with-hand-foot-and-mouth-disease-in-a-highly-endemic-area-of-southwest-china
#19
Qiang Wu, Xiaoqing Fu, Lili Jiang, Rusong Yang, Jianping Cun, Xiaofang Zhou, Yongming Zhou, Yibing Xiang, Wenpeng Gu, Jianhua Fan, Hong Li, Wen Xu
Etiological carriers and the excretion of the pathogens causing hand, foot, and mouth disease (HFMD) in healthy persons, patients, and asymptomatic persons infected with HFMD as ongoing infection sources may play an important role in perpetuating and spreading epidemics of HFMD. The aims of this study were to determine the carrier status of EV-A71 and CV-A16 in healthy populations, as well as the duration of EV-A71 and CV-A16 shedding in the stools of HFMD patients in an epidemic area of southwest China. A cross-sectional study and a follow-up study were conducted in three HFMD endemic counties of Yunnan Province...
2017: PloS One
https://www.readbyqxmd.com/read/28702377/dsrna-binding-domain-of-pkr-is-proteolytically-released-by-enterovirus-a71-to-facilitate-viral-replication
#20
Yu-Hsiu Chang, Kean Seng Lau, Rei-Lin Kuo, Jim-Tong Horng
Enterovirus 71 (EV-A71) causes hand, foot and mouth disease in young children and infants, but can also cause severe neurological complications or even death. The double-stranded RNA (dsRNA)-dependent protein kinase R (PKR), an interferon-induced antiviral protein, phosphorylates the regulatory α-subunit of the eukaryotic translation initiation factor 2 in response to viral infection, thereby blocking the translation of cellular and viral mRNA and promoting apoptosis. The cleavage of PKR after infection with poliovirus, a prototype enterovirus, has been reported by others, but the underlying mechanism of this cleavage and its role in viral replication remain unclear...
2017: Frontiers in Cellular and Infection Microbiology
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