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https://www.readbyqxmd.com/read/29775724/biological-activities-and-phytocompounds-of-northwest-algeria-ajuga-iva-l-extracts-partial-identification-of-the-antibacterial-fraction
#1
Saida Medjeldi, Lamjed Bouslama, Amina Benabdalla, Rim Essid, Soumaya Haou, Salem Elkahoui
The use of synthetic food additive and the appearance of antibiotic resistance are at the basis of important human health problems. The substitution of synthetic compounds with new natural substances extracted from plants or microorganisms is therefore the ideal solution to this scourge. The objective of this work was to evaluate the phyto-constituents (polyphenols, flavonoids and condensed tannins), and to test the biological activities (antioxidant, antibacterial and antiviral) of the Ajuga iva (L) aerial part extracts...
May 15, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29674446/polysialic-acid-is-a-cellular-receptor-for-human-adenovirus-52
#2
Annasara Lenman, A Manuel Liaci, Yan Liu, Lars Frängsmyr, Martin Frank, Bärbel S Blaum, Wengang Chai, Iva I Podgorski, Balázs Harrach, Mária Benkő, Ten Feizi, Thilo Stehle, Niklas Arnberg
Human adenovirus 52 (HAdV-52) is one of only three known HAdVs equipped with both a long and a short fiber protein. While the long fiber binds to the coxsackie and adenovirus receptor, the function of the short fiber in the virus life cycle is poorly understood. Here, we show, by glycan microarray analysis and cellular studies, that the short fiber knob (SFK) of HAdV-52 recognizes long chains of α-2,8-linked polysialic acid (polySia), a large posttranslational modification of selected carrier proteins, and that HAdV-52 can use polySia as a receptor on target cells...
April 19, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29664909/higher-parental-occupational-social-contact-is-associated-with-a-reduced-risk-of-incident-pediatric-type-1-diabetes-mediation-through-molecular-enteroviral-indices
#3
Anne-Louise Ponsonby, Angela Pezic, Fergus J Cameron, Christine Rodda, Andrew S Kemp, John B Carlin, Heikki Hyoty, Amirbabak Sioofy-Khojine, Terence Dwyer, Justine A Ellis, Maria E Craig
We aimed to examine the association between parental occupational social contact and hygiene factors on type 1 diabetes (T1D) risk and possible mediation of these effects through child enteroviral infection. We interviewed 333 incident T1D cases and 660 controls from 2008-2011 in Melbourne, Australia. Enteroviral indices (ribonucleic acid by reverse transcription polymerase chain reaction and Coxsackie B virus antibody levels) in peripheral blood were measured in nested case control samples. Parent occupational social contact was assessed by the number of well or sick children, adults or animals contacted daily through work...
2018: PloS One
https://www.readbyqxmd.com/read/29609251/-epidemiological-characteristics-of-coxsackie-virus-a16-caused-hand-foot-and-mouth-disease-cases-in-guangdong-province-2012-2016
#4
L M Sun, S L Wu, X H Tan, H Li, F Yang, H R Zeng, H Y Zheng, L Liu, J F He
Objective: To analyze the epidemiological characteristics of hand foot and mouth disease (HFMD) cases caused by Coxsackie virus A16 (Cox A16) in Guangdong province from 2012 to 2016. Methods: The data of mild HFMD cases caused by Cox A16 were collected from 8 sentinel hospitals in 8 prefecture-level cities in Guangdong to estimate Cox A16 infection status and its population and time distribution characteristics. Results: (1) The highest estimated incidence of Cox A16 infection was in 2014 (113.0/100 000), followed by 2016 (86...
March 10, 2018: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/29554706/discovery-of-bioactive-natural-products-for-the-treatment-of-acute-respiratory-infections-an-integrated-approach
#5
Ulrike Grienke, Christina E Mair, Johannes Kirchmair, Michaela Schmidtke, Judith M Rollinger
In this work, an integrated approach for the identification of new antiviral agents from natural sources for the treatment of acute respiratory infections is presented. The approach comprises (i) the selection of starting material based on traditional knowledge, (ii) phenotypic screening of extracts for antiviral activity, and (iii) the implementation of in silico predictions to identify antiviral compounds and derive the molecular mechanism underlying their biological activity. A variety of starting materials from plants and fungi was selected for the production of 162 extracts...
March 19, 2018: Planta Medica
https://www.readbyqxmd.com/read/29534739/comparison-of-two-different-combined-test-strips-with-fluorescent-microspheres-or-colored-microspheres-as-tracers-for-rotavirus-and-adenovirus-detection
#6
Na Jiang, Lei Shi, Jieping Lin, Lifang Zhang, Yanxia Peng, Huiying Sheng, Ping Wu, Qingjun Pan
BACKGROUND: Rotavirus (RV) and enteric adenovirus (AdV) mainly cause infantile infectious gastroenteritis. Several separate test methods for the detection of RV or AdV are currently available, but few tests are able to simultaneously detect both RV and AdV viruses, especially in primary medical institutions. METHODS: The present study was mainly designed to compare the performance of two combined test strips for the detection of RV and AdV: a rotavirus-adenovirus strip with fluorescent microspheres for tracers (FMT); and the CerTest rotavirus-adenovirus blister strip with colored microspheres for tracers (CMT)...
March 13, 2018: Virology Journal
https://www.readbyqxmd.com/read/29445265/new-frontiers-in-oncolytic-viruses-optimizing-and-selecting-for-virus-strains-with-improved-efficacy
#7
REVIEW
Kenneth Lundstrom
Oncolytic viruses have demonstrated selective replication and killing of tumor cells. Different types of oncolytic viruses - adenoviruses, alphaviruses, herpes simplex viruses, Newcastle disease viruses, rhabdoviruses, Coxsackie viruses, and vaccinia viruses - have been applied as either naturally occurring or engineered vectors. Numerous studies in animal-tumor models have demonstrated substantial tumor regression and prolonged survival rates. Moreover, clinical trials have confirmed good safety profiles and therapeutic efficacy for oncolytic viruses...
2018: Biologics: Targets & Therapy
https://www.readbyqxmd.com/read/29444614/in-vitro-anti-influenza-virus-effect-of-total-flavonoid-from-trollius-ledebouri-reichb
#8
Yongping Liu, Jiming Tong, Ying Tong, Ping Li, Xiaolan Cui, Hongbao Cao
Objective To investigate the in vitro antivirus effect of total flavonoid from Trollius ledebouri Reichb (TFTLR). Methods Madin-Darby canine kidney (MDCK) and Human epithelial type 2 (HEp-2) cell lines were used to test the antivirus effect of TFTLR on nine virus subtypes: four H1N1, one H3N2, and four other subtypes prevalent in North China. Tamiflu, Ribavirin and Lianhua Qingwen were used as active comparators. Comprehensive molecular pathway analyses of TFTLR-H1N1 and TFTLR-H3N2 relationships were also conducted...
April 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29425680/new-coxsackievirus-2a-pro-and-3c-pro-protease-antibodies-for-virus-detection-and-discovery-of-pathogenic-mechanisms
#9
Olli H Laitinen, Emma Svedin, Sebastian Kapell, Minna M Hankaniemi, Pär G Larsson, Erna Domsgen, Virginia M Stone, Juha A E Määttä, Heikki Hyöty, Vesa P Hytönen, Malin Flodström-Tullberg
Enteroviruses (EVs), such as the Coxsackie B-viruses (CVBs), are common human pathogens, which can cause severe diseases including meningitis, myocarditis and neonatal sepsis. EVs encode two proteases (2Apro and 3Cpro ), which perform the proteolytic cleavage of the CVB polyprotein and also cleave host cell proteins to facilitate viral replication. The 2Apro cause direct damage to the infected heart and tools to investigate 2Apro and 3Cpro expression may contribute new knowledge on virus-induced pathologies...
May 2018: Journal of Virological Methods
https://www.readbyqxmd.com/read/29375831/pancreatitis-and-myocarditis-coexistence-due-to-infection-by-coxsackie-b1-and-b4-viruses
#10
Konstantinos Lampropoulos, George Bazoukis, Athanasios Kolyviras, Gary Tse, Athanasios Saplaouras, Themistoklis Iliopoulos
Myocarditis can be a rare late manifestation of acute pancreatitis caused by Coxsackie virus infection. Clinicians should be aware of potentially life-threatening myocarditis because immediate recognition and management are the cornerstones in achieving a better outcome.
January 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29367266/the-novel-oncolytic-adenoviral-mutant-ad5-3%C3%AE-a20t-retargeted-to-%C3%AE-v%C3%AE-6-integrins-efficiently-eliminates-pancreatic-cancer-cells
#11
Y K Stella Man, James A Davies, Lynda Coughlan, Constantia Pantelidou, Alfonso Blázquez-Moreno, John F Marshall, Alan L Parker, Gunnel Halldén
Metastatic pancreatic ductal adenocarcinomas (PDAC) are incurable due to the rapid development of resistance to all current therapeutics. Oncolytic adenoviral mutants have emerged as a promising new strategy that negates such resistance. In contrast to normal tissue, the majority of PDACs express the αvβ6 integrin receptor. To exploit this feature, we modified our previously reported oncolytic adenovirus, AdΔΔ, to selectively target αvβ6 integrins to facilitate systemic delivery. Structural modifications to AdΔΔ include the expression of the small but potent αvβ6-binding peptide, A20FMDV2, and ablation of binding to the native coxsackie and adenovirus receptor (CAR) within the fiber knob region...
February 2018: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29362406/epidemiological-and-serological-surveillance-of-hand-foot-and-mouth-disease-in-shanghai-china-2012-2016
#12
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/29352387/current-perspectives-on-erythema-multiforme
#13
REVIEW
Marianne Lerch, Carlo Mainetti, Benedetta Terziroli Beretta-Piccoli, Thomas Harr
Recognition and timely adequate treatment of erythema multiforme remain a major challenge. In this review, current diagnostic guidelines, potential pitfalls, and modern/novel treatment options are summarized with the aim to help clinicians with diagnostic and therapeutic decision-making. The diagnosis of erythema multiforme, that has an acute, self-limiting course, is based on its typical clinical picture of targetoid erythematous lesions with predominant acral localization as well as histological findings...
February 2018: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/29325864/infections-genetic-and-environmental-factors-in-pathogenesis-of-autoimmune-thyroid-diseases
#14
REVIEW
Sanjeev Kumar Shukla, Govind Singh, Shahzad Ahmad, Prabhat Pant
In Autoimmune disease a combination of infection, genetic and environmental factors causes an autoimmune response to the thyroid gland (characterized by lymphocytic infiltrations), thyroid stimulating hormone receptor (TSHR) and different thyroid antigens. Graves' and Hashimoto disease are autoimmune disorders with genetic predisposition. CD40 that stimulates the proliferation and differentiation of lymphocytes is an essential immunomodulatory component for follicular cells in the thyroid and the cell that present the antigen...
March 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29323107/serological-survey-of-neutralizing-antibodies-to-eight-major-enteroviruses-among-healthy-population
#15
Rui Zhu, Tong Cheng, Zhichao Yin, Dongxiao Liu, Longfa Xu, Yongchao Li, Wei Wang, Jian Liu, Yuqiong Que, Xiangzhong Ye, Qiyi Tang, Qinjian Zhao, Shengxiang Ge, Shuizhen He, Ningshao Xia
Human enteroviruses (EVs) are the most common causative agents infecting human, causing many harmful diseases, such as hand, foot, and mouth disease (HFMD), herpangina (HA), myocarditis, encephalitis, and aseptic meningitis. EV-related diseases pose a serious worldwide threat to public health. To gain comprehensive insight into the seroepidemiology of major prevalent EVs in humans, we firstly performed a serological survey for neutralizing antibodies (nAbs) against Enterovirus A71 (EV-A71), Coxsackie virus A16 (CV-A16), Coxsackie virus A6 (CV-A6), Coxsackie virus A10 (CV-A10), Coxsackie virus B3 (CV-B3), Coxsackie virus B5 (CV-B5), Echovirus 25 (ECHO25), and Echovirus 30 (ECHO30) among the healthy population in Xiamen City in 2016, using micro-neutralization assay...
January 10, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29245918/interleukin-13-reduces-cardiac-injury-and-prevents-heart-dysfunction-in-viral-myocarditis-via-enhanced-m2-macrophage-polarization
#16
Honghui Yang, Yan Chen, Chuanyu Gao
Viral myocarditis is one of the major causes of congestive heart failure and dilated cardiomyopathy. Recent reports have demonstrated an essential role of cytokines, like interleukin-13 (IL-13), in the pathogenesis of viral myocarditis, while the underlying mechanisms remain poorly defined. Here, using a coxsackie virus B3 (CVB3)-infection model in BALB/C mice, we showed that IL-13 protected mouse heart function in viral myocarditis, seemingly through reduction in T lymphocyte immunity and induction of M2 macrophage polarization...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29209895/antiviral-activity-and-metal-ion-binding-properties-of-some-2-hydroxy-3-methoxyphenyl-acylhydrazones
#17
M Carcelli, E Fisicaro, C Compari, L Contardi, D Rogolino, C Solinas, A Stevaert, L Naesens
Here we report on the results obtained from an antiviral screening, including herpes simplex virus, vaccinia virus, vesicular stomatitis virus, Coxsackie B4 virus or respiratory syncytial virus, parainfluenza-3 virus, reovirus-1 and Punta Toro virus, of three 2-hydroxy-3-methoxyphenyl acylhydrazone compounds in three cell lines (i.e. human embryonic lung fibroblast cells, human cervix carcinoma cells, and African Green monkey kidney cells). Interesting antiviral EC50 values are obtained against herpes simplex virus-1 and vaccinia virus...
February 2018: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29182793/atypical-hand-foot-and-mouth-disease-caused-by-coxsackievirus-a6-in-denmark-a-diagnostic-mimicker
#18
Hans-Henrik Horsten, Michael Kemp, Thea K Fischer, Kim H Lindahl, Anette Bygum
Since 2008, outbreaks of atypical hand, foot, and mouth disease (HFMD) in children and adults have been reported worldwide. The majority of these outbreaks are caused by a new lineage of Coxsackie virus A6 (CV-A6) presenting a more severe clinical phenotype than the classical childhood HFMD caused by CV-A16. Between June 2014 and January 2016, 23 cases of atypical HFMD disease presented at a Dermatology Department at a regional University Hospital in Denmark. Patients were referred by general practitioners and dermatologists with a variety of clinical diagnoses, including eczema herpeticum, vasculitis, syphilis, dermatophytid, erythema multiforme and Stevens-Johnson syndrome...
March 13, 2018: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29174007/-acute-hemorrhagic-edema-of-infancy-associated-with-coxsackie-virus-infection
#19
A Debray, V Ollier, A Coutard, F Arditty, S Bekkar, C Bodemer, M Leruez-Ville, A Mirand, F Lesage, P Foucaud
Acute hemorrhagic edema of infancy is a rare but benign vasculitis occurring in infants aged from 4 to 24 months. Skin lesions can take various forms, including extensive hemorrhagic purpura, and can therefore be mistaken for purpura fulminans if associated with fever, which leads to initiating broad-spectrum antibiotic treatment. In the present case, we describe a 7-month-old boy with acute hemorrhagic edema of infancy and rapidly extensive purpura lesions that led to intravenous cefotaxime and amikacin treatment...
December 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29164007/adult-onset-still-s-disease-is-this-truly-a-diagnosis-of-exclusion
#20
Caleb W Anderson, Phalgoon A Shah, Jefferson R Roberts
Adult-onset Still's Disease is a rare, idiopathic, inflammatory disorder characterized by arthralgia, evanescent, salmon-colored rash, and daily fevers as well as lymphadenopathy, pharyngitis, splenomegaly, myalgias, and serositis. The inciting etiology of this syndrome is unknown, though it has been hypothesized that infection triggers an autoimmune response. The Yamaguchi Criteria, the most sensitive and widely used diagnostic criteria, requires both a minimum set of criteria to be met as well other potential etiologies to be excluded...
November 2017: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
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