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https://www.readbyqxmd.com/read/28511156/the-role-of-the-persistent-enterovirus-infection-in-development-of-acute-stroke
#1
Natalia G Andriushkova, Nataliia S Turchyna, Vadym A Poniatowski, Ludmyla V Dolinchuk, Valentyna V Melnyk, Volodymyr P Shyrobokov, Nataliia V Zakharchenko
INTRODUCTION: The role of enteroviruses in development of dilated cardiomyopathy, myocardial infarction, myocarditis, pericarditis is known. THE AIM: To examine the role of chronic enterovirus infections in development of acute stroke. MATERIAL AND METHODS: Blood samples from 72 patients with acute stroke (study group) and 35 patients without vascular disease (control group) were investigated by reverse transcription polymerase chain reaction for the presence of enterovirus RNA, by using virological method to detect enteroviruses, by ELISA for the levels of IgM and IgG antibodies to enteroviruses...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28475367/diglycosidic-indole-alkaloid-derivatives-from-an-aqueous-extract-of-isatis-indigotica-roots
#2
Ling-Jie Meng, Qing-Lan Guo, Cheng-Bo Xu, Cheng-Gen Zhu, Yu-Feng Liu, Ming-Hua Chen, Sheng Lin, Yu-Huan Li, Jian-Dong Jiang, Jian-Gong Shi
Six new indole alkaloid diglycosides named isatigotindolediosides A-F (1-6), along with three known analogs (7-9), were isolated from an aqueous extract of the Isatis indigotica roots (ban lan gen). Their structures including the absolute configurations were determined by comprehensive spectroscopic data analysis, combined with enzyme or acid hydrolysis, and comparison of experimental circular dichroism (CD) and calculated electronic circular dichroism (ECD) spectra. In the preliminary assays, compounds 3, 5, and 8 showed antiviral activity against Coxsackie virus B3...
May 5, 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/28468063/-health-related-quality-of-life-on-severe-hand-foot-and-mouth-disease-patients
#3
Y M Zheng, J Yang, Q H Liao
Objective: To evaluate the health related quality of life (HRQoL) for severe hand, foot and mouth disease (HFMD) patients with different complications. Methods: A national telephone interview under the EQ-5D proxy2 questionnaire (EQ-SD and EQ-VAS), was conducted to obtain the HRQoL of lab-confirmed severe HFMD patients, aged between six months and five-year-olds from the national communicable disease surveillance system from January 1, 2012 to December 31, 2013. Results: A total of 685 severe HFMD cases were included in the study...
April 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28435072/development-of-a-pseudovirus-based-assay-for-measuring-neutralizing-antibodies-against-coxsackievirus-b5
#4
Pan Chen, Xing Wu, Yao Su, Xiaotian Hao, Qunying Mao, Zhenglun Liang
Coxsackievirus B5 (CV-B5), an important Coxsackie B virus from genus Enteroviruse within the family Picornaviridae, has also been isolated from Hand, Foot, and Mouth Disease (HFMD) patients, and often associated with neurological manifestations. In this study, we found out that Coxsackievirus B3 (CV-B3) replicon RNA could be encapsidated with CV-B5 capsid to assemble infectious CV-B5 pseudovirus. We then utilized this single round infection system of CV-B5 to develop a neutralizing antibody quantification assay...
April 20, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28370198/diclofenac-based-hydrazones-and-spirothiazolidinones-synthesis-characterization-and-antimicrobial-properties
#5
Ayşe Kocabalkanlı, Gökçe Cihan-Üstündağ, Lieve Naesens, Emel Mataracı-Kara, Mebble Nassozi, Gültaze Çapan
We report here the synthesis, structural characterization, and biological evaluation of novel diclofenac-based hydrazone (4a-f) and spirothiazolidinone (5a-f, 6a-f) derivatives designed as potential antimicrobial agents. The compounds were evaluated in vitro for their antiviral activity against a wide spectrum of DNA and RNA viruses. They were further screened in vitro against different strains of bacteria and fungi. The hydrazone derivatives, 4a and 4c-f, were found to be active against herpesviruses (HSV-1, HSV-2, and HSV-1 TK(-) ), vaccinia virus, and Coxsackie B4 virus, with EC50 values between 6...
March 30, 2017: Archiv der Pharmazie
https://www.readbyqxmd.com/read/28359509/autosomal-recessive-cardiomyopathy-presenting-as-acute-myocarditis
#6
Serkan Belkaya, Amy R Kontorovich, Minji Byun, Sonia Mulero-Navarro, Fanny Bajolle, Aurelie Cobat, Rebecca Josowitz, Yuval Itan, Raphaelle Quint, Lazaro Lorenzo, Soraya Boucherit, Cecile Stoven, Sylvie Di Filippo, Laurent Abel, Shen-Ying Zhang, Damien Bonnet, Bruce D Gelb, Jean-Laurent Casanova
BACKGROUND: Myocarditis is inflammation of the heart muscle that can follow various viral infections. Why children only rarely develop life-threatening acute viral myocarditis (AVM), given that the causal viral infections are common, is unknown. Genetic lesions might underlie such susceptibilities. Mouse genetic studies demonstrated that interferon (IFN)-α/β immunity defects increased susceptibility to virus-induced myocarditis. Moreover, variations in human TLR3, a potent inducer of IFNs, were proposed to underlie AVM...
April 4, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28352303/paediatric-virology-a-rapidly-increasing-educational-challenge
#7
Ioannis N Mammas, Maria Theodoridou, Anna Kramvis, Prakash Thiagarajan, Sharryn Gardner, Georgia Papaioannou, Angeliki Melidou, Maria Koutsaki, Georgia Kostagianni, Vassilis Achtsidis, Chryssie Koutsaftiki, Marcos Calachanis, Apostolos Zaravinos, Anne Greenough, Demetrios A Spandidos
The '2nd Workshop on Paediatric Virology', which took place on Saturday the 8th of October 2016 in Athens, Greece, provided an overview on recent views and advances on Paediatric Virology. Emphasis was given to HIV-1 management in Greece, a country under continuous financial crisis, hepatitis B vaccination in Africa, treatment options for hepatitis C virus in childhood, Zika virus in pregnancy and infancy, the burden of influenza on childhood, hand-foot-mouth disease and myocarditis associated with Coxsackie viruses...
February 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28303224/aromatic-compounds-from-an-aqueous-extract-of-ban-lan-gen-and-their-antiviral-activities
#8
Yufeng Liu, Minghua Chen, Qinglan Guo, Yuhuan Li, Jiandong Jiang, Jiangong Shi
A pair of new diphenyl glycerol ether enantiomers (-)-1 and (+)-1 and two new methyl benzamidobenzoates 2 and 3, named (-)-(R)- and (+)-(S)-isatindigotrioic acid [(-)-1 and (+)-1] and isatindigoticamides A (2) and B (3), respectively, were isolated from an aqueous decoction of the roots of Isatis indigotica (ban lan gen). Their structures were elucidated by spectroscopic data analysis including 2D NMR experiments. The absolute configurations of (-)-1 and (+)-1 were assigned based on the CD exciton chirality method...
March 2017: Acta Pharmaceutica Sinica. B
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
#9
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/28263801/umifenovir-effectively-inhibits-il-10-dependent-persistent-coxsackie-b4-virus-infection
#10
Shilin Zhang, Chenyang Zhi, Hongrui Li, Dianshuai Huang, Qingjie Fan, Jiuwei Cui, Chongyang Liang
Coxsackie virus cannot be completely eliminated due to restrictive replication and impaired immune response, thus causing persistent infection. IL-10 plays a decisive role in the course of persistent viral infection. Umifenovir is a broad-spectrum antiviral drug, with certain treatment effects on Coxsackie virus infection. Previously, we showed that in addition to inhibiting Coxsackie B4 (CVB4) infection, Umifenovir also down-regulates IL-10 induced by persistent CVB4 virus infection in vitro and in vivo...
March 2, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28218574/corrigendum-three-capsid-amino-acids-notably-influence-coxsackie-b3-virus-stability
#11
Steven D Carson, Steven Tracy, Zac G Kaczmarek, Abdulaziz Alhazmi, Nora M Chapman
No abstract text is available yet for this article.
January 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28196967/coxsackie-myocarditis-and-hepatitis-with-reactivated-epstein-bar-virus-ebv-a-case-report
#12
Varunsiri Atti, Nathan M Anderson, Mathew B Day
BACKGROUND Myocarditis, defined as inflammation of myocardial tissue of the heart, is an uncommon cardiac presentation and is due to a variety of causes. It affects 1% of the US population, 50% of which is caused by coxsackie B virus. Cardiac tissue is the prime target, and destruction of myocardium results in cardiac failure with fluid overload. CASE REPORT Our patient was a 57-year-old woman with fever, headache, neck pain, and generalized malaise. Her white blood cell count was 13×10³ cells/mm³. Interestingly, lumbar puncture ruled out meningitis...
February 15, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28179628/the-impact-of-hand-foot-and-mouth-disease-control-policies-in-singapore-a-qualitative-analysis-of-public-perceptions
#13
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/28161113/-myocarditis
#14
G Hékimian, A Combes
Acute myocarditis must be considered in patients with recent onset of cardiac failure or arrhythmia. Fulminant myocarditis is a distinct entity characterized by sudden onset of severe congestive heart failure or cardiogenic shock, usually following a flu-like illness, parvovirus B19, human herpesvirus 6, coxsackie virus and adenovirus being the most frequently viruses responsible for the disease. In this setting, early recognition of patients rapidly progressing to refractory cardiac failure and their immediate transfer to a medical-surgical center experienced in mechanical circulatory support is warranted...
February 1, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28147344/detection-and-localization-of-viral-infection-in-the-pancreas-of-patients-with-type-1-diabetes-using-short-fluorescently-labelled-oligonucleotide-probes
#15
Niels Busse, Federico Paroni, Sarah J Richardson, Jutta E Laiho, Maarit Oikarinen, Gun Frisk, Heikki Hyöty, Eelco de Koning, Noel G Morgan, Kathrin Maedler
Enteroviruses, specifically of the Coxsackie B virus family, have been implicated in triggering islet autoimmunity and type 1 diabetes, but their presence in pancreata of patients with diabetes has not been fully confirmed.To detect the presence of very low copies of the virus genome in tissue samples from T1D patients, we designed a panel of fluorescently labeled oligonucleotide probes, each of 17-22 nucleotides in length with a unique sequence to specifically bind to the enteroviral genome of the picornaviridae family...
February 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28146569/human-gut-on-a-chip-supports-polarized-infection-of-coxsackie-b1-virus-in-vitro
#16
Remi Villenave, Samantha Q Wales, Tiama Hamkins-Indik, Efstathia Papafragkou, James C Weaver, Thomas C Ferrante, Anthony Bahinski, Christopher A Elkins, Michael Kulka, Donald E Ingber
Analysis of enterovirus infection is difficult in animals because they express different virus receptors than humans, and static cell culture systems do not reproduce the physical complexity of the human intestinal epithelium. Here, using coxsackievirus B1 (CVB1) as a prototype enterovirus strain, we demonstrate that human enterovirus infection, replication and infectious virus production can be analyzed in vitro in a human Gut-on-a-Chip microfluidic device that supports culture of highly differentiated human villus intestinal epithelium under conditions of fluid flow and peristalsis-like motions...
2017: PloS One
https://www.readbyqxmd.com/read/28131843/inhibition-of-drp1-attenuates-mitochondrial-damage-and-myocardial-injury-in-coxsackievirus-b3-induced-myocarditis
#17
Lin Lin, Ming Zhang, Rui Yan, Hu Shan, Jiayu Diao, Jin Wei
Viral myocarditis (VMC) is closely related to apoptosis, oxidative stress, innate immunity, and energy metabolism, which are all linked to mitochondrial dysfunction. A close nexus between mitochondrial dynamics and cardiovascular disease with mitochondrial dysfunction has been deeply researched, but there is still no relevant report in viral myocarditis. In this study, we aimed to explore the role of Dynamin-related protein 1 (Drp1)-linked mitochondrial fission in VMC. Mice were inoculated with the Coxsackievirus B3 (CVB3) and treated with mdivi1 (a Drp1 inhibitor)...
March 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28123495/effects-of-the-mapk-pathway-and-the-expression-of-car-in-a-murine-model-of-viral-myocarditis
#18
Ling Niu, Chunli Li, Zhenzhou Wang, Hui Xu, Xinjiang An
The pathogenesis of viral myocarditis (VMC) is not fully understood. This study aimed to examine the relationship between coxsackie-adenovirus receptor (CAR) and the p38 mitogen activated protein kinase (MAPK) pathway mechanisms in a mouse model. Three groups of mice were established: 5 mice in a control group injected with saline, 15 in the model group injected with coxsackie virus B3 (CVB) and 15 in the intervention group injected with CVB3 but treated with the p38 MAPK inhibitor SB203580. Mice were sacrificed at days 1, 5, 10, 15 and 30 and cardiac tissues were isolated to perform the tests...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28074864/a-novel-monoclonal-antibody-targeting-coxsackie-virus-and-adenovirus-receptor-inhibits-tumor-growth-in-vivo
#19
Manabu Kawada, Hiroyuki Inoue, Masunori Kajikawa, Masahito Sugiura, Shuichi Sakamoto, Sakiko Urano, Chigusa Karasawa, Ihomi Usami, Mitsuru Futakuchi, Tohru Masuda
To create a new anti-tumor antibody, we conducted signal sequence trap by retrovirus-meditated expression method and identified coxsackie virus and adenovirus receptor (CXADR) as an appropriate target. We developed monoclonal antibodies against human CXADR and found that one antibody (6G10A) significantly inhibited the growth of subcutaneous as well as orthotopic xenografts of human prostate cancer cells in vivo. Furthermore, 6G10A also inhibited other cancer xenografts expressing CXADR, such as pancreatic and colorectal cancer cells...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28068367/cell-surface-integrins-and-car-are-both-essential-for-adenovirus-type-5-transduction-of-canine-cells-of-lymphocytic-origin
#20
Payal Agarwal, Elizabeth A Gammon, Abdul Mohin Sajib, Maninder Sandey, Bruce F Smith
Adenoviruses are the most widely used vectors in cancer gene therapy. Adenoviruses vectors are well characterized and are easily manipulated. Adenovirus serotype 5 (Ad5) is the most commonly used human serotype. Ad5 internalization into host cells is a combined effect of binding of Ad5 fiber knob with the coxsackie virus and adenovirus receptor (CAR) and binding of RGD motifs in viral penton to cell surface integrins (αvβ3, αvβ5). Ad5's wide range of host-cell transduction and lack of integration into the host genome have made it an excellent choice for cancer therapeutics...
2017: PloS One
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