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Virology Journal

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https://www.readbyqxmd.com/read/29228983/characterization-of-interactions-between-hepatitis-c-virus-ns5b-polymerase-annexin-a2-and-rna-effects-on-ns5b-catalysis-and-allosteric-inhibition
#1
Sara M Ø Solbak, Eldar Abdurakhmanov, Anni Vedeler, U Helena Danielson
BACKGROUND: Direct acting antivirals (DAAs) provide efficient hepatitis C virus (HCV) therapy and clearance for a majority of patients, but are not available or effective for all patients. They risk developing HCV-induced hepatocellular carcinoma (HCC), for which the mechanism remains obscure and therapy is missing. Annexin A2 (AnxA2) has been reported to co-precipitate with the non-structural (NS) HCV proteins NS5B and NS3/NS4A, indicating a role in HCC tumorigenesis and effect on DAA therapy...
December 11, 2017: Virology Journal
https://www.readbyqxmd.com/read/29212520/the-relationship-between-human-leukocyte-antigen-dp-dq-gene-polymorphisms-and-the-outcomes-of-hcv-infection-in-a-chinese-population
#2
Peng Huang, Haozhi Fan, Ting Tian, Peiwen Liao, Jun Li, Rongbin Yu, Xueshan Xia, Yue Feng, Jie Wang, Yuan Liu, Yun Zhang, Ming Yue
BACKGROUND: Recently, human leukocyte antigen (HLA) class-II gene polymorphisms have been reported to be related to Hepatitis C virus (HCV) infection and chronicity. The objective of this study was to explore the relationship of HLA-DP rs9277535 and HLA-DQ rs7453920 with the outcomes of HCV infection. METHODS: The rs9277535 and rs7453920 were genotyped in 370 subjects with chronic HCV infection, 194 subjects with spontaneous HCV clearance, and 973 subjects with non-HCV infection from the Chinese population using the ABI TaqMan allelic discrimination assay...
December 6, 2017: Virology Journal
https://www.readbyqxmd.com/read/29202792/the-cc-chemokine-ligand-ccl-1-upregulated-by-the-viral-transactivator-tax-can-be-downregulated-by-minocycline-possible-implications-for-long-term-treatment-of-htlv-1-associated-myelopathy-tropical-spastic-paraparesis
#3
Mineki Saito, Hiroe Sejima, Tadasuke Naito, Hiroshi Ushirogawa, Toshio Matsuzaki, Eiji Matsuura, Yuetsu Tanaka, Tatsufumi Nakamura, Hiroshi Takashima
BACKGROUND: Chemokine (C-C motif) ligand 1 (CCL1) is produced by activated monocytes/ macrophages and T-lymphocytes, and acts as a potent attractant for Th2 cells and a subset of T-regulatory (Treg) cells. Previous reports have indicated that CCL1 is overexpressed in adult T-cell leukemia cells, mediating an autocrine anti-apoptotic loop. Because CCL1 is also known as a potent chemoattractant that plays a major role in inflammatory processes, we investigated the role of CCL1 in the pathogenesis of human T-cell leukemia virus type 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis (HAM/TSP)...
December 4, 2017: Virology Journal
https://www.readbyqxmd.com/read/29183342/the-ph-stability-of-foot-and-mouth-disease-virus
#4
REVIEW
Hong Yuan, Pinghua Li, Xueqing Ma, Zengjun Lu, Pu Sun, Xingwen Bai, Jing Zhang, Huifang Bao, Yimei Cao, Dong Li, Yuanfang Fu, Yingli Chen, Qifeng Bai, Jie Zhang, Zaixin Liu
ᅟ: This review summarized the molecular determinants of the acid stability of FMDV in order to explore the uncoating mechanism of FMDV and improve the acid stability of vaccines. BACKGROUND: The foot-and-mouth disease virus (FMDV) capsid is highly acid labile and tends to dissociate into pentameric subunits at acidic condition to release viral RNA for initiating virus replication. However, the acid stability of virus capsid is greatly required for the maintenance of intact virion during the process of virus culture and vaccine production...
November 28, 2017: Virology Journal
https://www.readbyqxmd.com/read/29169354/development-of-a-novel-newcastle-disease-virus-ndv-neutralization-test-based-on-recombinant-ndv-expressing-enhanced-green-fluorescent-protein
#5
Ana Chumbe, Ray Izquierdo-Lara, Katherine Calderón, Manolo Fernández-Díaz, Vikram N Vakharia
BACKGROUND: Newcastle disease is one of the most important infectious diseases of poultry, caused by Newcastle disease virus (NDV). This virus is distributed worldwide and it can cause severe economic losses in the poultry industry due to recurring outbreaks in vaccinated and unvaccinated flocks. Protection against NDV in chickens has been associated with development of humoral response. Although hemagglutination inhibition (HI) assay and ELISA do not corroborate the presence of neutralizing antibodies (nAbs); they are used to measure protection and immune response against NDV...
November 23, 2017: Virology Journal
https://www.readbyqxmd.com/read/29166950/global-phylogenetic-analysis-of-contemporary-aleutian-mink-disease-viruses-amdvs
#6
P Ryt-Hansen, E E Hagberg, M Chriél, T Struve, A G Pedersen, L E Larsen, C K Hjulsager
BACKGROUND: Aleutian mink disease has major economic consequences on the mink farming industry worldwide, as it causes a disease that affects both the fur quality and the health and welfare of the mink. The virus causing this disease is a single-stranded DNA virus of the genus Amdoparvovirus belonging to the family of Parvoviridae. In Denmark, infection with AMDV has largely been restricted to a region in the northern part of the country since 2001, affecting only 5% of the total Danish mink farms...
November 22, 2017: Virology Journal
https://www.readbyqxmd.com/read/29166910/prevalence-and-genetic-diversity-analysis-of-human-coronaviruses-among-cross-border-children
#7
Peilin Liu, Lei Shi, Wei Zhang, Jianan He, Chunxiao Liu, Chunzhong Zhao, Siu Kai Kong, Jacky Fong Chuen Loo, Dayong Gu, Longfei Hu
BACKGROUND: More than a decade after the outbreak of human coronaviruses (HCoVs) SARS in Guangdong province and Hong Kong SAR of China in 2002, there is still no reoccurrence, but the evolution and recombination of the coronaviruses in this region are still unknown. Therefore, surveillance on the prevalence and the virus variation of HCoVs circulation in this region is conducted. METHODS: A total of 3298 nasopharyngeal swabs samples were collected from cross-border children (<6 years, crossing border between Southern China and Hong Kong SAR) showing symptoms of respiratory tract infection, such as fever (body temperature > 37...
November 22, 2017: Virology Journal
https://www.readbyqxmd.com/read/29162143/prevalence-and-risk-of-hepatitis-e-virus-infection-in-the-hiv-population-of-nepal
#8
Ananta Shrestha, Anurag Adhikari, Manjula Bhattarai, Ramanuj Rauniyar, Jose D Debes, André Boonstra, Thupten K Lama, Mamun Al Mahtab, Amna Subhan Butt, Sheikh Mohammad Fazle Akbar, Nirmal Aryal, Sapana Karn, Krishna Das Manandhar, Birendra Prasad Gupta
BACKGROUND: Infection with the hepatitis E virus (HEV) can cause acute hepatitis in endemic areas in immune-competent hosts, as well as chronic infection in immune-compromised subjects in non-endemic areas. Most studies assessing HEV infection in HIV-infected populations have been performed in developed countries that are usually affected by HEV genotype 3. The objective of this study is to measure the prevalence and risk of acquiring HEV among HIV-infected individuals in Nepal. METHODS: We prospectively evaluated 459 Human Immunodeficiency Virus (HIV)-positive individuals from Nepal, an endemic country for HEV, for seroprevalence of HEV and assessed risk factors associated with HEV infection...
November 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/29162124/geraniin-extracted-from-the-rind-of-nephelium-lappaceum-binds-to-dengue-virus-type-2-envelope-protein-and-inhibits-early-stage-of-virus-replication
#9
Siti Aisyah Abdul Ahmad, Uma D Palanisamy, Bimo A Tejo, Miaw Fang Chew, Hong Wai Tham, Sharifah Syed Hassan
BACKGROUND: The rapid rise and spread in dengue cases, together with the unavailability of safe vaccines and effective antiviral drugs, warrant the need to discover and develop novel anti-dengue treatments. In this study the antiviral activity of geraniin, extracted from the rind of Nephelium lappaceum, against dengue virus type-2 (DENV-2) was investigated. METHODS: Geraniin was prepared from Nephelium lappaceum rind by reverse phase C-18 column chromatography. Cytotoxicity of geraniin towards Vero cells was evaluated using MTT assay while IC50 value was determined by plaque reduction assay...
November 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/29157279/coinfection-with-haemophilus-parasuis-serovar-4-increases-the-virulence-of-porcine-circovirus-type-2-in-piglets
#10
Shuqing Liu, Wentao Li, Yang Wang, Changqin Gu, Xiaoli Liu, Catherine Charreyre, Shenxian Fan, Qigai He
BACKGROUND: Postweaning multisystemic wasting syndrome (PMWS) is an emerging disease in swine. Pigs with PMWS are often infected with a variety of other pathogens, including bacteria, viruses and mycoplasm, in addition to porcine circovirus type 2 (PCV2). PCV2 and Haemophilus parasuis serovar 4 (HPS4) coinfection remain epidemic in China. METHODS: Here we report construction of a three-week-old naturally farrowed, colostrum-deprived (NFCD) piglet's infection model and demonstrate that PCV2-infected piglets with the HPS4 coinfection increased the virulence of PCV2 and these pathogens interact acquired PMWS...
November 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/29149857/putative-progressive-and-abortive-feline-leukemia-virus-infection-outcomes-in-captive-jaguarundis-puma-yagouaroundi
#11
Claudia Filoni, A Katrin Helfer-Hungerbuehler, José Luiz Catão-Dias, Mara Cristina Marques, Luciana Neves Torres, Manfred Reinacher, Regina Hofmann-Lehmann
BACKGROUND: Feline leukemia virus (FeLV) is an exogenous gammaretrovirus of domestic cats (Felis catus) and some wild felids. The outcomes of FeLV infection in domestic cats vary according to host susceptibility, virus strain, and infectious challenge dose. Jaguarundis (Puma yagouaroundi) are small wild felids from South and Central America. We previously reported on FeLV infections in jaguarundis. We hypothesized here that the outcomes of FeLV infection in P. yagouaroundi mimic those observed in domestic cats...
November 17, 2017: Virology Journal
https://www.readbyqxmd.com/read/29137680/correction-to-development-of-molecular-confirmation-tools-for-swift-and-easy-rabies-diagnostics
#12
Kore Schlottau, Conrad M Freuling, Thomas Müller, Martin Beer, Bernd Hoffmann
After publication of the article [1], it has been brought to our attention that an incorrect genetic sequence has been cited. On page 4, paragraph 1 the following sequence is cited "ATG GAT GCC GAC AAG ATT GTM TTY AAA GTY AAT A 3". This is an error and the correct sequence should be "GGG GGC TTT YCC TAG GGT KAT ACW GGG CTT T 3".
November 14, 2017: Virology Journal
https://www.readbyqxmd.com/read/29137673/a-cheap-and-open-hiv-viral-load-technique-applicable-in-routine-analysis-in-a-resource-limited-setting-with-a-wide-hiv-genetic-diversity
#13
Elodie Téclaire Ngo-Malabo, Paul Alain Ngoupo T, Martin Zekeng, Valérie Ngono, Laure Ngono, Serge Alain Sadeuh-Mba, Richard Njouom, Anfumbom Kfutwah
BACKGROUND: HIV infection in Cameroon is characterized by a great viral diversity with all HIV-1 groups (M, N, O, and P) and HIV-2 in circulation. HIV group determination is very important if tailored viral load analysis and treatments are to be applied. In our laboratory, HIV viral load is carried out using two platforms; Biocentric and Abbott depending on the HIV group identified. Biocentric which quantifies HIV-1 group M is a cheap and open system useful in resource limited settings...
November 14, 2017: Virology Journal
https://www.readbyqxmd.com/read/29137637/molecular-evolution-of-hiv-1-integrase-during-the-20%C3%A2-years-prior-to-the-first-approval-of-integrase-inhibitors
#14
Karolin Meixenberger, Kaveh Pouran Yousef, Maureen Rebecca Smith, Sybille Somogyi, Stefan Fiedler, Barbara Bartmeyer, Osamah Hamouda, Norbert Bannert, Max von Kleist, Claudia Kücherer
BACKGROUND: Detailed knowledge of the evolutionary potential of polymorphic sites in a viral protein is important for understanding the development of drug resistance in the presence of an inhibitor. We therefore set out to analyse the molecular evolution of the HIV-1 subtype B integrase at the inter-patient level in Germany during a 20-year period prior to the first introduction of integrase strand inhibitors (INSTIs). METHODS: We determined 337 HIV-1 integrase subtype B sequences (amino acids 1-278) from stored plasma samples of antiretroviral treatment-naïve individuals newly diagnosed with HIV-1 between 1986 and 2006...
November 14, 2017: Virology Journal
https://www.readbyqxmd.com/read/29132394/comparative-epidemiology-of-porcine-circovirus-type-3-in-pigs-with-different-clinical-presentations
#15
Shao-Lun Zhai, Xia Zhou, He Zhang, Ben M Hause, Tao Lin, Runxia Liu, Qin-Ling Chen, Wen-Kang Wei, Dian-Hong Lv, Xiao-Hui Wen, Feng Li, Dan Wang
BACKGROUND: Porcine circovirus type 3 (PCV3), as an emerging circovirus species, was reported to be widely circulating in the United States, China, South Korea and Poland. Previous studies revealed that PCV3 was mainly concentrated in sick animals with respiratory disease, skin disease, reproductive disorders and so on. However, the circulating status of PCV3 in pigs with other clinical presentations (especilly asymptomatic or diarrhea) was not well established. FINDINGS: In this study, to conduct a comparative epidemiological survey of PCV3, 80 weaned pig serum samples with severe respiratory disease (SRD), 175 weaned pig serum samples with mild respiratory disease (MRD), 216 asymptomatic weaned pig serum samples, 35 diarrheal weaned pig samples and 35 non-diarrheal weaned pig samples were collected from eight provinces of China...
November 13, 2017: Virology Journal
https://www.readbyqxmd.com/read/29132393/interferon-%C3%AE-inducible-protein-16-ifi16-is-required-for-the-maintenance-of-epstein-barr-virus-latency
#16
Gina Pisano, Arunava Roy, Mairaj Ahmed Ansari, Binod Kumar, Leela Chikoti, Bala Chandran
BACKGROUND: Epstein-Barr virus (EBV) exhibits both lytic and latent (Lat. I, II, and III) phases in an infected individual. It's during the latent phase of EBV that all EBV-associated cancers, including Burkitt's lymphoma, nasopharyngeal carcinoma and lymphoproliferative disease arise. Interferon-γ-inducible protein 16 (IFI16) is a well-established innate immune sensor and viral transcriptional regulator involved in response to invading DNA viruses. During latency, IFI16 remains in the nucleus, in part bound to the EBV genome; however, neither its role in EBV lytic cycle or latency has been established...
November 13, 2017: Virology Journal
https://www.readbyqxmd.com/read/29126448/the-epidemiology-of-norovirus-in-the-middle-east-and-north-africa-mena-region-a-systematic-review
#17
REVIEW
Khalil Kreidieh, Rana Charide, Ghassan Dbaibo, Nada M Melhem
Norovirus (NoV) is considered the second leading cause of viral acute gastroenteritis (AGE). To our knowledge, there are no systematic reviews assessing the role of NoV in AGE in the Middle East and North Africa (MENA) region. Consequently, we conducted an extensive systematic literature review on articles studying NoV in the 24 countries of the MENA region during the past 15 years (2000-2015). The methods and reporting were set according to the 2015 PRISMA-P and based on the elements from the international prospective register of systematic reviews (PROSPERO)...
November 10, 2017: Virology Journal
https://www.readbyqxmd.com/read/29126418/an-image-cytometric-technique-is-a-concise-method-to-detect-adenoviruses-and-host-cell-proteins-and-to-monitor-the-infection-and-cellular-responses-induced
#18
Takao Morinaga, Thảo Thi Thanh Nguyễn, Boya Zhong, Michiko Hanazono, Masato Shingyoji, Ikuo Sekine, Yuji Tada, Koichiro Tatsumi, Hideaki Shimada, Kenzo Hiroshima, Masatoshi Tagawa
BACKGROUND: Genetically modified adenoviruses (Ad) with preferential replications in tumor cells have been examined for a possible clinical applicability as an anti-cancer agent. A simple method to detect viral and cellular proteins is valuable to monitor the viral infections and to predict the Ad-mediated cytotoxicity. METHODS: We used type 5 Ad in which the expression of E1A gene was activated by 5'-regulatory sequences of genes that were augmented in the expression in human tumors...
November 10, 2017: Virology Journal
https://www.readbyqxmd.com/read/29121968/association-of-ifitm3-rs12252-polymorphisms-bmi-diabetes-and-hypercholesterolemia-with-mild-flu-in-an-iranian-population
#19
Parvaneh Mehrbod, Sana Eybpoosh, Fatemeh Fotouhi, Hadiseh Shokouhi Targhi, Vahideh Mazaheri, Behrokh Farahmand
BACKGROUND: IFITM3 has been suggested to be associated with infection in some ethnic groups. Diabetes and hypercholesterolemia are also important clinical conditions that can predispose individuals to infection. The aim of this study was to investigate the association of rs12252 C polymorphism, BMI, diabetes, and hypercholesterolemia with mild flu in an Iranian population. METHODS: We conducted a case-control study, including 79 mild flu and 125 flu-negative individuals attending primary care centers of three provinces of Iran (i...
November 9, 2017: Virology Journal
https://www.readbyqxmd.com/read/29116029/zikv-infection-effects-changes-in-gene-splicing-isoform-composition-and-lncrna-expression-in-human-neural-progenitor-cells
#20
Benxia Hu, Yongxia Huo, Liping Yang, Guijun Chen, Minhua Luo, Jinlong Yang, Jumin Zhou
BACKGROUND: The Zika virus (ZIKV) is a mosquito-borne flavivirus that causes microcephaly and Guillain-Barré syndrome in infected individuals. To obtain insights into the mechanism of ZIKV infection and pathogenesis, we analyzed the transcriptome of ZIKV infected human neural progenitor cells (hNPCs) for changes in alternative splicing (AS), gene isoform (ISO) composition and long noncoding RNAs (lncRNAs) expression. METHODS: We analyzed differentially expressed lncRNAs, AS, ISO from RNA-seq data in ZIKV infected hNPCs...
November 7, 2017: Virology Journal
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