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Intervirology

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https://www.readbyqxmd.com/read/28723690/distribution-of-human-papillomavirus-genotypes-among-women-in-mashhad-iran
#1
Eskandar Taghizadeh, Forough Taheri, Hamed Abdolkarimi, Pedram Ghorbani Renani, Seyed Mohammad Gheibi Hayat
OBJECTIVE: Cervical cancer is the third most common malignancy in females. Since the human papillomavirus (HPV) genotype can vary geographically, it is essential to define its genotypic distribution before establishing health care policies and vaccination programs in any given area. The aim of this study was to determine the frequency of HPV types in women in Mashhad, Iran. METHODS: We used nested PCR and reverse dot-blot hybridization for genotyping. The study included 143 cervical cytology samples from Mashhad with confirmed papillomavirus infection by molecular methods...
July 20, 2017: Intervirology
https://www.readbyqxmd.com/read/28683463/middle-east-respiratory-syndrome-coronavirus-and-pulmonary-tuberculosis-coinfection-implications-for-infection-control
#2
Sarah H Alfaraj, Jaffar A Al-Tawfiq, Talal A Altuwaijri, Ziad A Memish
Coinfection of Middle East respiratory syndrome coronavirus (MERS-CoV) with tuberculosis (TB) has not been previously reported. Here, we present 2 cases with both MERS-CoV and pulmonary TB. The first case was a 13-year-old patient who was admitted with a 2-month history of fever, weight loss, night sweats, and cough. The second patient was a 30-year-old female who had a 4-week history of cough associated with shortness of breath and weight loss of 2 kg. The 2 patients were diagnosed with pulmonary TB and had positive MERS-CoV...
July 6, 2017: Intervirology
https://www.readbyqxmd.com/read/28614823/resistance-of-enteric-viruses-on-fomites
#3
Enagnon Kazali Alidjinou, Famara Sane, Swan Firquet, Pierre-Emmanuel Lobert, Didier Hober
Human enteric viruses are associated with several clinical features, especially gastroenteritis. Large amounts of these viruses can be released in the environment and spread to people. Enteric viruses are nonenveloped viruses and have displayed good survival in the environment. They can be significantly resistant in food and water but also on fomites, and this is thought to play a role in transmission, leading to sporadic cases or outbreaks. The survival of enteric viruses on fomites relies on many factors including the virus itself, fomite properties, and extrinsic environmental factors such as temperature or relative humidity...
June 15, 2017: Intervirology
https://www.readbyqxmd.com/read/28675900/hiv-1-subtype-diversity-and-prevalence-of-primary-drug-resistance-in-a-single-center-pediatric-cohort-in-germany
#4
Jennifer Neubert, Nadja Michalsky, Hans-Jürgen Laws, Arndt Borkhardt, Björn Jensen, Nadine Lübke
OBJECTIVES: Data on drug-resistant mutations (DRMs) in HIV-1-infected therapy-naïve children are scarce. The aim of this study was to determine the HIV-1 subtype distribution and the prevalence of DRMs in therapy-naïve HIV-1-infected children who received routine care at the University Hospital Düsseldorf, Düsseldorf, Germany. METHODS: Records of all HIV-1-infected children who received routine care between January 2005 and December 2015 were analyzed retrospectively...
2016: Intervirology
https://www.readbyqxmd.com/read/28668959/contribution-of-next-generation-sequencing-to-aquatic-and-fish-virology
#5
Andriniaina Andy Nkili-Meyong, Laurent Bigarré, Ingrid Labouba, Tatiana Vallaeys, Jean-Christophe Avarre, Nicolas Berthet
The recent technological advances in nucleic acid sequencing, called next-generation sequencing (NGS), have revolutionized the field of genomics and have also influenced viral research. Aquatic viruses, and especially those infecting fish, have also greatly benefited from NGS technologies, which provide a huge amount of molecular information at a low cost in a relatively short period of time. Here, we review the use of the current high-throughput sequencing platforms with a special focus on the associated challenges (regarding sample preparation and bioinformatics) in their applications to the field of aquatic virology, especially for: (i) discovering novel viruses that may be associated with fish mortalities, (ii) elucidating the mechanisms of pathogenesis, and finally (iii) studying the molecular epidemiology of these pathogens...
2016: Intervirology
https://www.readbyqxmd.com/read/28641298/generation-of-a-dna-launched-reporter-replicon-based-on-dengue-virus-type-2-as-a-multipurpose-platform
#6
Jose A Usme-Ciro, Jaime A Lopera, Diego A Alvarez, Luis Enjuanes, Fernando Almazán
Dengue viruses (DENV) have become the most important arthropod-borne viruses, causing dengue and severe dengue fever in at least 50-100 million cases each year, mainly in tropical and subtropical countries. During recent years, important advances in the molecular biology concerning the life cycle of these viruses have allowed the manipulation and generation of recombinant viruses and replicons with multiple applications, mainly in viral biology and the screening of antiviral compounds. In the present study, we describe the construction of an enhanced green fluorescent protein-bearing DENV replicon under the control of the cytomegalovirus immediate early promoter...
2016: Intervirology
https://www.readbyqxmd.com/read/28637040/a-possible-role-of-therapeutic-drug-monitoring-in-virological-breakthrough-during-simeprevir-and-peg-ifn-treatment-in-hcv-4
#7
Lucio Boglione, Tina Ruggiero, Amedeo De Nicolò, Antonio D'Avolio, Giovanni Di Perri
No abstract text is available yet for this article.
2016: Intervirology
https://www.readbyqxmd.com/read/28468008/effect-of-maxing-shigan-tang-on-h1n1-influenza-a-virus-associated-acute-lung-injury-in-mice
#8
Yanchun Zhong, Jie Zhou, Ning Liang, Bihao Liu, Ruirui Lu, Yu He, Chunlin Liang, Junbiao Wu, Yuan Zhou, Miaomiao Hu, Jiuyao Zhou
OBJECTIVE: This study is aimed at examining the effects of Maxing Shigan Tang (MST) treatment on H1N1-associated acute lung injury (ALI) and exploring the possible mechanism. MATERIAL AND METHODS: Mice were randomly divided into a control group, model group, peroxisomal proliferator activator receptor γ (PPARγ) inhibition group (PPARγ-), PPARγ activation group (PPARγ+), and MST group. Influenza A (H1N1) virus of the Fort Monmouth 1 (FM1) strain was used to induce an ALI mice model...
2016: Intervirology
https://www.readbyqxmd.com/read/28402975/frequent-pul27-variations-in-hiv-infected-patients
#9
Azam Mirarab, Alireza Mohebbi, Abdolvahab Moradi, Naeme Javid, Mohammad Ali Vakili, Alijan Tabarraei
OBJECTIVE: Drug-resistant isolates of human cytomegalovirus (HCMV) have led to the development of new anti-HCMV drugs. Maribavir (MBV) is a novel inhibitor of the HCMV viral kinase. Resistance to MBV is mapped to gene UL27, a viral nuclear protein. In this study, we investigated UL27 polymorphisms in MBV-naive HIV-positive and HCMV congenitally infected clinical samples. METHODS: DNA was extracted from 20 CMV-positive HIV (9/20) and congenitally infected (11/20) patients and used for UL27 polymerase chain reaction amplification...
2016: Intervirology
https://www.readbyqxmd.com/read/28402973/low-risk-of-developing-chronic-hepatitis-e-in-heart-transplant-recipients-a-prospective-2-year-follow-up-study
#10
Sven Pischke, Christoph Bara, Patrick Behrendt, Axel Haverich, Michael P Manns, Heiner Wedemeyer
No abstract text is available yet for this article.
2016: Intervirology
https://www.readbyqxmd.com/read/28402970/the-genotyping-resistance-profile-of-the-pol-gene-detected-in-blood-of-newly-diagnosed-hiv-positive-men-is-durably-archived-in-the-gut-whatever-the-time-of-initiation-of-cart
#11
Anne Emmanuelle Depincé, Elodie Dussert, Delphine Vergnon-Miszczycha, Abdelaye Keita, Sylvie Pillet, Elisabeth Botelho-Nevers, Anne Frésard, Amandine Gagneux-Brunon, Frédéric R Lucht, Xavier Roblin, Bruno Pozzetto, Stéphane Paul, Thomas Bourlet
OBJECTIVE: To evaluate the mutational patterns on the pol gene of the main HIV-1 strain archived in cell genome of 10 chronically infected men according to their clinical and therapeutic history. The genotyping resistance profiles were compared between the first blood plasma available at the time of HIV diagnosis and rectal biopsies and PBMC sampled 1-5 years after the initiation of combined antiretroviral therapy (cART). METHODS: HIV-1 RNA and cell-associated HIV-1 DNA were quantified by Abbott Real-Time HIV-1 and Generic HIV® DNA cell (Biocentric) assays...
2016: Intervirology
https://www.readbyqxmd.com/read/28384626/complete-genome-sequence-of-proteus-mirabilis-phage-ppm_01-isolated-from-raw-sewage
#12
Ira Aryani Wirjon, Nyok-Sean Lau, Yahya Mat Arip
OBJECTIVES: Phage pPM_01 was previously isolated from a raw sewage treatment facility located in Batu Maung, Penang, Malaysia, and it was highly lytic against Proteus mirabilis, which causes urinary tract infections in humans. In this paper, we characterize the biology and complete genome sequence of the phage. METHODS AND RESULTS: Transmission electron microscopy revealed phage pPM_01 to be a siphovirus (the first reported virus to infect P. mirabilis), with its complete genome sequence successfully determined...
2016: Intervirology
https://www.readbyqxmd.com/read/28334725/predominance-of-g9p-4-rotavirus-from-children-with-acute-gastroenteritis-in-northwestern-mexico
#13
Leticia Felix-Valenzuela, Dora Patricia Cooley-García, Manuel Alberto Cano-Rangel, Maria de Los Angeles Durazo-Arvizu, Veronica Mata-Haro
In Mexico, group A rotavirus (RVA) infections remain the most common cause of severe dehydrating diarrhea in children. This study was conducted to examine the circulating RVA strains in the northwest region of Mexico. RVA strains collected from stool samples of children were genotyped, and their partial sequences were analyzed. RT-PCR of the VP4 and VP7 genes showed the partial G9P[4] genotype in all the samples. Sequencing and phylogenetic analysis of the partial VP7 gene amplicons of 10 strains showed that they clustered in the RVA G9 lineage III, and 7 of them showed 100% identity with the reference strain LB1562, which was collected in the USA 2 years earlier...
2016: Intervirology
https://www.readbyqxmd.com/read/28329744/antiviral-and-immunomodulatory-effects-of-norantea-brasiliensis-choisy-on-dengue-virus-2
#14
Luciana Gomes Fialho, Vagner Pereira da Silva, Sônia Regina Nogueira Ignácio Reis, Elzinandes Leal Azeredo, Maria Auxiliadora Coelho Kaplan, Maria Raquel Figueiredo, Claire Fernandes Kubelka
BACKGROUND/AIMS: Severe dengue fever is a result of exacerbated immune responses and no specific treatments are available. We evaluated the antiviral and immunomodulatory effects of Norantea brasiliensis Choisy. METHODS: Human adherent monocytes infected in vitro with dengue virus (DENV)-2 were incubated with the crude ethanol extract from leaves (NB1) or 3 derived fractions: dichloromethane (NB3), ethyl acetate (NB5), and butanolic (NB6) partitions. The antiviral and immunomodulatory activities were determined by intracellular detection of DENV antigen within monocytes and by secreted NS1 viral protein and cytokines...
2016: Intervirology
https://www.readbyqxmd.com/read/28329739/peptides-derived-from-glycoproteins-h-and-b-of-herpes-simplex-virus-type-1-and-herpes-simplex-virus-type-2-are-capable-of-blocking-herpetic-infection-in-vitro
#15
Abraham Cetina-Corona, Uriel López-Sánchez, Juana Salinas-Trujano, Alfonso Méndez-Tenorio, Blanca Lilia Barrón, Jesus Torres-Flores
AIMS: The aim of this study was to design peptides derived from glycoproteins H (gH) and B (gB) of herpes simplex viruses type 1 (HSV-1) and type 2 (HSV-2) with the potential to block herpetic infection and to evaluate their ability to inhibit HSV-1 and HSV-2 infection in vitro. METHODS: A library of continuous 15-25 residue stretches (CRSs) located at the surface of gH and gB from HSV-1 and HSV-2 was created. These CRSs were analyzed, and only those that were highly flexible and rich in charged residues were selected for the design of the antiviral peptides (AVPs)...
2016: Intervirology
https://www.readbyqxmd.com/read/28278509/evaluation-of-the-automated-qiasymphony-sp-as-workflow-for-cytomegalovirus-dna-extraction-and-amplification-from-dried-blood-spots
#16
Daniela Spalletti-Cernia, Sara Barbato, Rosanna Sorrentino, Luca Vallefuoco, Caterina Rocco, Pasquale Di Costanzo, Antonella Giannattasio, Francesco Raimondi, Claudia Mazzarella, Roberta De Mattia, Giuseppe Portella
OBJECTIVE: Human cytomegalovirus (CMV) can be considered the most important agent of congenital infection. Long-term sequelae of congenital infection occur in about 15% of infants asymptomatic at birth. To avoid long-term sequelae or to reduce their burden, it is necessary to identify infected children for early interventions. CMV DNA can be detected in dried blood spots (DBSs). DBSs have been used in several studies for the retrospective diagnosis of congenital CMV (CCMV). It has been proposed to use DBSs for the newborn screening of CMV infection; however, manual methods are not suitable for newborn screening of CCMV...
2016: Intervirology
https://www.readbyqxmd.com/read/28208132/an-outbreak-of-acute-hepatitis-caused-by-genotype-ib-hepatitis-a-viruses-contaminating-the-water-supply-in-thailand
#17
Kriangsak Ruchusatsawat, Jongkonnee Wongpiyabovorn, Chonthicha Kawidam, Laddawan Thiemsing, Somchai Sangkitporn, Sayaka Yoshizaki, Masashi Tatsumi, Naokazu Takeda, Koji Ishii
BACKGROUND: In 2000, an outbreak of acute hepatitis A was reported in a province adjacent to Bangkok, Thailand. AIMS: To investigate the cause of the 2000 hepatitis A outbreaks in Thailand using molecular epidemiological analysis. METHODS: Serum and stool specimens were collected from patients who were clinically diagnosed with acute viral hepatitis. Water samples from drinking water and deep-drilled wells were also collected. These specimens were subjected to polymerase chain reaction (PCR) amplification and sequencing of the VP1/2A region of the hepatitis A virus (HAV) genome...
2016: Intervirology
https://www.readbyqxmd.com/read/28208127/prevalence-of-occult-hepatitis-c-virus-infection-among-blood-donors-in-jiangsu-china
#18
Hong Lin, Xian Chen, Shaowen Zhu, Ping Mao, Shanshan Zhu, Yanchun Liu, Chengyin Huang, Jun Sun, Jin Zhu
OBJECTIVE: In 2010, only 1 donor blood sample was found to be anti-hepatitis C virus (HCV) negative and HCV RNA positive, as detected by nucleic acid testing. In occult HCV infection (OCI), HCV RNA is found in peripheral blood mononuclear cells (PBMCs). We investigated the prevalence of OCI among blood donors. METHODS: We collected 513 samples from 334 eligible and 179 deferred donors, including 55 anti-HCV-positive, 113 alanine aminotransferase (ALT)-elevated, and 11 hepatitis B virus surface antigen (HBsAg)-positive blood donors...
2016: Intervirology
https://www.readbyqxmd.com/read/28178699/identification-of-the-nuclear-localization-signal-region-of-duck-enteritis-virus-ul14-and-its-interaction-with-vp16
#19
FangJie Li, YuWei Zhang, Shun Chen, MingShu Wang, RenYong Jia, DeKang Zhu, MaFeng Liu, KunFeng Sun, Qiao Yang, Ying Wu, XiaoYue Chen, AnChun Cheng
OBJECT: Duck enteritis virus (DEV) is a member of the Alphaherpesvirinae viruses. VP16 and pUL14 are both predicted to be tegument proteins of DEV. METHODS: An indirect immunofluorescence assay (IFA) was performed for preliminary analysis of the colocalization of pUL14 and VP16, which detected their subcellular localization in duck embryo fibroblasts (DEFs) during virus replication. The coexpression of pUL14 and VP16 was detected in transfected DEFs. A bimolecular fluorescence complementation (BiFC) assay was used to confirm a direct interaction between pUL14 and VP16...
2016: Intervirology
https://www.readbyqxmd.com/read/28142135/frequency-and-genotype-of-human-parvovirus-b19-among-iranian-hemodialysis-and-peritoneal-dialysis-patients
#20
Alireza Sharif, Arezoo Aghakhani, Ali Akbar Velayati, Mohammad Banifazl, Mohammad Reza Sharif, Effat Razeghi, Davood Kheirkhah, Monireh Kazemimanesh, Anahita Bavand, Amitis Ramezani
OBJECTIVES: The aim of this study was to evaluate the frequency and genotype of human parvovirus B19 and its relation with anemia among Iranian patients under dialysis. METHODS: Fifty hemodialysis (HD) and 33 peritoneal dialysis (PD) patients were enrolled. B19 IgG and IgM antibodies were assessed by ELISA, and the presence of B19 DNA was evaluated by nested PCR. PCR products were sequenced directly and phylogenetic analysis was performed. RESULTS: In the HD group, the prevalence of B19 antibodies was 54% for IgG and 4% for IgM...
2016: Intervirology
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