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https://www.readbyqxmd.com/read/28105928/computer-aided-identification-of-a-hevein-like-antimicrobial-peptide-of-bell-pepper-leaves-for-biotechnological-use
#1
Patrícia Dias Games, Elói Quintas Gonçalves daSilva, Meire de Oliveira Barbosa, Hebréia Oliveira Almeida-Souza, Patrícia Pereira Fontes, Marcos Jorge deMagalhães-Jr, Paulo Roberto Gomes Pereira, Maura Vianna Prates, Gloria Regina Franco, Alessandra Faria-Campos, Sérgio Vale Aguiar Campos, Maria Cristina Baracat-Pereira
BACKGROUND: Antimicrobial peptides from plants present mechanisms of action that are different from those of conventional defense agents. They are under-explored but have a potential as commercial antimicrobials. Bell pepper leaves ('Magali R') are discarded after harvesting the fruit and are sources of bioactive peptides. This work reports the isolation by peptidomics tools, and the identification and partially characterization by computational tools of an antimicrobial peptide from bell pepper leaves, and evidences the usefulness of records and the in silico analysis for the study of plant peptides aiming biotechnological uses...
December 15, 2016: BMC Genomics
https://www.readbyqxmd.com/read/28098552/hepatitis-e-virus-infection-in-solid-organ-transplant-recipients-france
#2
Sebastien Lhomme, Laurent Bardiaux, Florence Abravanel, Pierre Gallian, Nassim Kamar, Jacques Izopet
The rate of transfusion-transmitted hepatitis E virus (HEV) in transplant recipients is unknown. We identified 60 HEV-positive solid organ transplant patients and retrospectively assessed their blood transfusions for HEV. Seven of 60 patients received transfusions; 3 received HEV-positive blood products. Transfusion is not the major route of infection in this population.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28096411/hepatitis-e-virus-orf3-is-a-functional-ion-channel-required-for-release-of-infectious-particles
#3
Qiang Ding, Brigitte Heller, Juan M V Capuccino, Bokai Song, Ila Nimgaonkar, Gabriela Hrebikova, Jorge E Contreras, Alexander Ploss
Hepatitis E virus (HEV) is the leading cause of enterically transmitted viral hepatitis globally. Of HEV's three ORFs, the function of ORF3 has remained elusive. Here, we demonstrate that via homophilic interactions ORF3 forms multimeric complexes associated with intracellular endoplasmic reticulum (ER)-derived membranes. HEV ORF3 shares several structural features with class I viroporins, and the function of HEV ORF3 can be maintained by replacing it with the well-characterized viroporin influenza A virus (IAV) matrix-2 protein...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28093535/hepatitis-e-in-singapore-a-case-series-and-viral-phylodynamics-study
#4
Esmeralda Chi-Yuan Teo, Boon-Huan Tan, Michael A Purdy, Pui-San Wong, Pei-Jun Ting, Pik-Eu Jason Chang, Lynette Lin-Ean Oon, Amanda Sue, Chong-Gee Teo, Chee-Kiat Tan
The incidence of hepatitis E in Singapore appears to be increasing. A retrospective case-series study of patients diagnosed with hepatitis E in a tertiary hospital from 2009 to 2013 was conducted. Of 16 cases, eight (50%) were solid-organ transplant recipients (SOTRs), and 14 (88%) were found infected by genotype 3 hepatitis E virus (HEV-3). Bayesian inferences based on HEV subgenomic sequences from seven cases suggest that HEV-3 strains were introduced to Singapore as two principal lineages. Within limitations of the study, it can be inferred that one lineage, in the 3efg clade, emerged about 83 years ago, probably originating from Japan, whereas the other, in the 3abchij clade, emerged about 40 years ago, from the United States...
January 16, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28089613/high-frequency-of-hepatitis-e-virus-infection-in-swine-from-south-brazil-and-close-similarity-to-human-hev-isolates
#5
Ana Maria Passos-Castilho, Celso Francisco Hernandes Granato
Hepatitis E virus is responsible for acute and chronic liver infections worldwide. Swine hepatitis E virus has been isolated in Brazil, and a probable zoonotic transmission has been described, although data are still scarce. The aim of this study was to investigate the frequency of hepatitis E virus infection in pigs from a small-scale farm in the rural area of Paraná State, South Brazil. Fecal samples were collected from 170 pigs and screened for hepatitis E virus RNA using a duplex real-time RT-PCR targeting a highly conserved 70nt long sequence within overlapping parts of ORF2 and ORF3 as well as a 113nt sequence of ORF2...
January 3, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28078736/investigation-of-underlying-comorbidities-as-risk-factors-for-symptomatic-human-hepatitis-e-virus-infection
#6
S Zhang, C Chen, J Peng, X Li, D Zhang, J Yan, Y Zhang, C Lu, J Xun, W Li, Y Ling, Y Huang, L Chen
BACKGROUND: Symptomatic Hepatitis E virus (HEV) infection occurs in few infected subjects, and the risk factors are not completely known. AIMS: To explore the risk factors for adverse clinical outcomes in acute HEV infections. METHODS: A large retrospective study was conducted. The baseline characteristics, clinical outcomes, and laboratory data of 512 acute HEV infection cases were analysed using logistic regression models. RESULTS: All patients exhibited autochthonous sporadic HEV infections, and most were elderly...
January 12, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28077520/hepatitis-e-virus-infection-in-anti-hev-igg-carryinfing-patients-after-successful-hcv-treatment-reactivation-or-reinfection
#7
Antonio Rivero-Juarez, Mario Frias, Pedro Lopez-Lopez, María de Los Angeles Risalde, Teresa Brieva, Isabel Machuca, Angela Camacho, Antonio Martinez-Peinado, Jose Carlos Gomez-Villamandos, Antonio Rivero
Although Hepatitis E (HEV) is regarded asa self-limiting infection and anti-HEV antibodies seem toprotect against reinfection, its pathogenesis is not well established. We describe two cases of acute symptomatic HEV infection after Hepatitis C therapy in patients carrying anti-HEV IgG antibodies raising two major questions: reactivation or reinfection?
January 11, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28077314/biological-or-pharmacological-activation-of-protein-kinase-c-alpha-constrains-hepatitis-e-virus-replication
#8
Wenshi Wang, Yijin Wang, Yannick Debing, Xinying Zhou, Yuebang Yin, Lei Xu, Elena Herrera Carrillo, Johannes H Brandsma, Raymond A Poot, Ben Berkhout, Johan Neyts, Maikel P Peppelenbosch, Qiuwei Pan
Although hepatitis E has emerged as a global health issue, there is limited knowledge of its infection biology and no FDA-approved medication is available. Aiming to investigate the role of protein kinases in hepatitis E virus (HEV) infection and to identify potential antiviral targets, we screened a library of pharmacological kinase inhibitors in a cell culture model, a subgenomic HEV replicon containing luciferase reporter. We identified protein kinase C alpha (PKCα) as an essential cell host factor restricting HEV replication...
January 8, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28067990/familial-hepatitis-e-outbreak-linked-to-wild-boar-meat-consumption
#9
A Rivero-Juarez, M Frias, A Martinez-Peinado, M A Risalde, D Rodriguez-Cano, A Camacho, I García-Bocanegra, F Cuenca-Lopez, J C Gomez-Villamandos, A Rivero
An HIV-infected patient was diagnosed with acute hepatitis E infection in our hospital. An epidemiological inquiry was performed to collect demographic, food and animal exposure variables in order to identify the potential route of transmission. The patient reported that his family traditionally hunted wild boar for food. All family members were analysed for hepatitis E virus infection. Additionally, route of transmission by wild boar meat consumption and prevalence of HEV infection among wild boar from the same hunting area were investigated...
January 9, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28064293/epidemiological-and-clinical-features-of-enteroviral-acute-lower-respiratory-tract-infections-in-hospitalized-paediatric-patients-in-a-malaysian-tertiary-center
#10
J W Y Tan, R Nuryasmin, Y Apandi, V Nethiya, H Hussin, A L Zuraidah
BACKGROUND: Human enteroviruses (HEVs) have been recognized to cause a significant number of respiratory tract infections in many regions. Previous studies conducted to analyse enteroviral respiratory tract infections focused on outbreaks. Data in the Southeast Asian region is still rather limited to date. OBJECTIVES: We conducted a prospective analysis to understand the epidemiological characteristics of enteroviral lower respiratory tract infections (LRTIs) among paediatric patients admitted to Hospital Ampang, a tertiary hospital in Malaysia...
October 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28063923/phylogenetic-analysis-of-hepatitis-e-virus-strains-isolated-from-slaughter-age-pigs-in-colombia
#11
Jorge E Forero D, Cristian Gutiérrez-Vergara, Jaime Parra S, Guillermo Correa L, Berardo Rodríguez, Lina A Gutiérrez, Francisco Javier Díaz, Albeiro López-Herrera
Hepatitis E virus (HEV) is a zoonotic virus that causes acute hepatitis in humans, and can be transmitted via the fecal-oral route. Pigs are considered to be a reservoir for this infection-mainly where the disease is not endemic. In a previous study conducted in Antioquia, which is a region in Colombia where the production and consumption of pork meat is higher than in the rest of the country, the presence of anti-HEV IgG-type antibodies was reported in slaughter-age pigs. Aiming to identify the HEV genotype circulating in swine, animal liver, and feces samples from five swine cattle slaughterhouses located in six different sub-regions of Antioquia were collected...
January 4, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28061467/cytological-study-on-the-regulation-of-lymphocyte-homing-in-the-chicken-spleen-during-lps-stimulation
#12
Qian Zhang, Yasir Waqas, Ping Yang, Xuejing Sun, Yi Liu, Nisar Ahmed, Bing Chen, Quanfu Li, Lisi Hu, Yufei Huang, Hong Chen, Bing Hu, Qiusheng Chen
The immune function of the chicken spleen depends on its different compartments of red and white pulps, but little is known about the mechanism underlying lymphocyte homing towards the different compartments. In the present study, the role of lymphocyte homing in the chicken spleen was investigated during lipopolysaccharide (LPS) stimulation. Morphological analysis demonstrated the cuboidal endothelial cells of the splenic sheathed capillary facilitated the passage of lymphocyte homing to the chicken spleen...
January 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28058019/clinical-features-of-acute-hepatitis-e-super-infections-on-chronic-hepatitis-b
#13
Chong Chen, Shu-Ye Zhang, Dan-Dan Zhang, Xin-Yan Li, Yu-Ling Zhang, Wei-Xia Li, Jing-Jing Yan, Min Wang, Jing-Na Xun, Chuan Lu, Yun Ling, Yu-Xian Huang, Liang Chen
AIM: To examine the clinical features and risk factors for adverse outcomes in chronic hepatitis B (CHB) superimposed with hepatitis E virus (HEV). METHODS: This retrospective cohort study included 228 patients with acute HEV infection (showing clinical acute hepatitis symptomology and positivity for anti-HEV immunoglobulin M) with underlying CHB (confirmed by positivity for hepatitis B surface antigen and/or hepatitis B virus (HBV) DNA over 6 mo) who had been admitted to the Shanghai Public Health Clinical Center, which represents the regional tertiary hospital for infectious diseases in Shanghai city, China...
December 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28056844/hepatitis-e-virus-seroprevalence-among-the-general-population-in-a-livestock-dense-area-in-the-netherlands-a-cross-sectional-population-based-serological-survey
#14
Arianne B van Gageldonk-Lafeber, Wim van der Hoek, Floor Borlée, Dick J J Heederik, Sofie H Mooi, Catharina B M Maassen, C Joris Yzermans, Barry Rockx, Lidwien A M Smit, Johan H J Reimerink
BACKGROUND: Recent serological studies indicate that hepatitis E virus (HEV) is endemic in industrialised countries. The increasing trend in the number of autochthonous cases of HEV genotype 3 in Western European countries, stresses the importance to get insight in the exact routes of exposure. Pigs are the main animal reservoir, and zoonotic food-borne transmission of HEV is proven. However, infected pigs can excrete large amounts of virus via their faeces enabling environmental transmission of HEV to humans...
January 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28056216/nuclear-localization-and-secretion-competence-is-conserved-amongst-henipavirus-matrix-proteins
#15
Elisabeth C McLinton, Kylie M Wagstaff, Alexander Lee, Gregory W Moseley, Glenn A Marsh, Lin-Fa Wang, David A Jans, Kim G Lieu, Hans Netter
Viruses of the genus Henipavirus of the family Paramyxoviridae are zoonotic pathogens, which have emerged in South East Asia, Australia and Africa. Nipah virus (NiV) and Hendra virus (HeV) are highly virulent pathogens transmitted from bats to animals and humans, whilst the henipavirus Cedar virus (CedV) seems to be non-pathogenic in infection studies. The full replication cycle of the Paramyxoviridae occurs in the host cell's cytoplasm where viral assembly is orchestrated by the matrix (M) protein. Unexpectedly, the NiV-M protein traffics through the nucleus as an essential step to engage the plasma membrane in preparation for viral budding/release...
January 5, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28051793/%C3%A2-high-clinical-manifestation-rate-in-an-imported-outbreak-of-hepatitis-e-genotype-1-infection-in-a-german-group-of-travellers-returning-from-india
#16
Sven Pischke, Julian Schulze-Zur-Wiesch, Marc Lu Tgehetmann, Benno Kreuels, Stefan Lueth, Petra Kapaun, Daniel Benten, Stefan Schmiedel, Martina Sterneck, Ansgar W Lohse, Susanne Polywka
:  Background. There are only few reports about travel-associated, imported tropical hepatitis E virus (HEV) genotype 1 infections within Western travellers. We describe the clinical course of a single outbreak of hepatitis E in a German travellers group returning from India and compare the results of two commercial HEV-seroassays. MATERIAL AND METHODS: After identifying hepatitis E in an index patient returning from a journey to India all 24 members of this journey were tested for anti-HEV-IgG and IgM using two commercial seroassays (Wantai and Mikrogen), for HEV-RNA by PCR and HEV-Ag by an antigen-assay (Wantai)...
January 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28035774/prevalence-of-hepatitis-e-virus-infection-among-blood-donors-in-mainland-china-a-meta-analysis
#17
Longmu Zhang, Shuxian Jiao, Zhongsi Yang, Lei Xu, Li Liu, Qiuxia Feng, Xia Zhang, Yun Hou, Shuyi He, John Saldanha, Shuang Wang, Bin Wang
BACKGROUND: The risk of hepatitis E virus (HEV) infection from blood transfusion has raised increasing concern in many countries. Several transfusion-transmitted cases have been described in the United Kingdom and Japan. The objective was to investigate the prevalence of HEV infection among Chinese blood donors and analyze the potential risk of HEV infection through blood transfusion in China. STUDY DESIGN AND METHODS: Major English and Chinese research databases were used as background research for the study of locations, years, and the number of HEV infections among blood donors in China...
December 30, 2016: Transfusion
https://www.readbyqxmd.com/read/28033681/high-endothelial-venules-associated-with-t-cell-subsets-in-the-inflamed-gut-of-newly-diagnosed-inflammatory-bowel-disease-patients
#18
Carmen S Horjus Talabur Horje, Carolijn Smids, Jos W R Meijer, Marcel J Groenen, Maaike K Rijnders, Ellen G van Lochem, Peter J Wahab
BACKGROUND: Naive and central memory T lymphocytes (TN and TCM ) can infiltrate the inflamed gut mucosa in Inflammatory Bowel Disease (IBD) patients. Homing of these subsets to the gut might be explained by ectopic formation of tertiary lymphoid organs (TLOs), containing high endothelial venules (HEVs). We aimed to evaluate the presence of HEVs and TLOs in inflamed intestinal mucosa of newly diagnosed, untreated, IBD patients in relation to the presence of TN and TCM lymphocytes. METHODS: IBD patients (n=39) and healthy controls (n=8) were prospectively included...
December 29, 2016: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28033239/seroprevalence-of-hepatitis-e-virus-antibodies-in-portuguese-children
#19
Ricardo Oliveira, João Rodrigo Mesquita, Sara Pereira, Joana Abreu-Silva, Joana Teixeira, Maria São José Nascimento
BACKGROUND: Hepatitis E virus (HEV) has become a growing Public Health concern in industrialized countries. Most of the HEV seroprevalence studies have focused on adult populations and reports regarding HEV seroepidemiology among children are scarce in these countries. The aims of the present work were to perform a nationwide seroprevalence study on HEV infection in Portuguese children and to compare the HEV seropositivity in this 2015 children cohort with results in sera performed 20 years earlier...
December 28, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28024457/haemorrhagic-enteritis-of-turkeys-current-knowledge
#20
Kuldeep Dhama, Vasudevan Gowthaman, Kumaragurubaran Karthik, Ruchi Tiwari, Swati Sachan, M Asok Kumar, M Palanivelu, Yashpal Singh Malik, Raj Kumar Singh, Muhammad Munir
Haemorrhagic enteritis virus (HEV), an adenovirus associated with acute hemorrhagic gastro-intestinal disease of 6-11 weeks old turkeys predominantly hampers both humoral and cellular immunity. Affected birds are more prone to secondary complications (like colibacillosis and clostridiosis) and failure to mount an effective vaccine-induced immune response. HEV belongs to the new genus Siadenovirus. Feco-oral transmission is the main route of entry of the virus and it mainly colonizes bursa, intestine and spleen...
December 27, 2016: Veterinary Quarterly
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