10 results for “RNA replication”

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Research ArticleOpen accessEvery word in the titleEvidences of Hepatitis C Virus Replication in Hepatocytes and Peripheral Blood Monocuclear Cells from Patients Negative for Viral RNA in SerumViviana Falcón, Nelson Acosta-Rivero, Mineko Shibayama et al.In this study, we examined the expression of hepatitis C virus (HCV) components in hepatocytes and peripheral blood mononuclear cells (PBMC) from patients positive for anti-HCV antibodies and negative for serum HCV-RNA. The samples obtained from 25 randomly selected patients (13 of 25 patients showed no histological evidences of chronic hepatitis and had normal serum ALAT and GGTP levels) were … …American Journal of Infectious Diseases, Vol. 1, Issue 1 · 31 Mar 2005 · 7,164 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsThe Murine Charged Multivesicular Body Protein 2A, CHMP2A Interacts with the 5' and 3' Terminal Regions of Dengue Virus Complementary Minus-strand RNASuchita Chaudhry, Sathyamangalam Swaminathan, Navin KhannaDengue (DEN) viruses, of which there are four distinct serotypes (DEN-1, -2, -3 and –4), belong to the Flaviviridae family. Their ‘plus’ sense RNA genomes contain Non-Translated Regions (NTRs) at their 5’ and 3’ ends. Replication of viral genomic RNA, which takes place in close association with host cell membranes, involves the initial synthesis of the complementary minus sense RNA … …American Journal of Infectious Diseases, Vol. 2, Issue 1 · 31 Mar 2006 · 7,314 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Impact of Climate Factors on the Epidemiology and Management of Potato virus YMahabuba Mostafa, Md. Motaher HossainPlant viruses give rise to potential loss to global crop production and have the potential to cause widespread damage. Potato virus Y (PVY) is a plant virus that belongs to the genus Potyvirus and the family Potyviridae and it is considered a major concern, particularly for solanaceous crops such as potatoes. PVY represents the largest cluster of plant viruses, encompassing … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 31 Aug 2024 · 4,758 accessesView PDF Cite

Letter to the EditorOpen accessIn the abstractSofosbuvir May be a Potential Anti-SARS-CoV-2 RdRp DrugMohamed Nabil Ibrahim, Abdo Abdellah ElfikyThe Coronavirus Diseases 2019 (COVID-19) seriously affecting human health all over the world. More than 107 M people are reported positive for SARS-CoV-2, the virus causing COVID-19 pneumonia, from which +2.3 M died. Nucleotide Inhibitors (NI) have promising results in terms of its efficacy against different viral polymerases, including the Hepatitis C Virus (HCV) Non-Structural Protein 5 B (NS5B) RNA … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 2 · 10 May 2021 · 6,568 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEvaluation of Antiviral Activity of Different Medicinal Plants against Newcastle Disease VirusKhaldoun J. Al-HadidNewcastle Disease (ND) is a highly contagious viral disease that has a tremendous negative impact on the poultry industry worldwide. Plant extracts were prepared from five different medicinal plants and applied against Newcastle Disease Virus (NDV) to evaluate the antiviral replication in Specific Pathogen-Free (SPF) chicken embryos. Three dilutions from each plant extract were prepared and mixed with a fixed … …American Journal of Agricultural and Biological Sciences, Vol. 11, Issue 4 · 1 Nov 2016 · 8,871 accessesView PDF Cite

Research ArticleOpen accessIn the abstractDesigning of Disulfide Cyclic Peptide for Inhibiting Polymerase A and B1 (PAC-PB1N) in H1N1 Virus using Molecular Simulation ApproachUsman Sumo Friend Tambunan, Mochammad Arfin Fardiansyah Nasution, Arli Aditya Parikesit et al.The drug resistance A/H1N1 flu virus is emerging rapidly. Therefore, looking for potential therapy is very important. PB2, PB and PA are subunits of viral RNA-dependent RNA polymerase (RdRp). They play an important role in viral replication. The PA and PB1 binding sites can be considered as potential targets for the development of new influenza drugs. The peptide inhibitors can … …OnLine Journal of Biological Sciences, Vol. 16, Issue 3 · 24 Aug 2016 · 7,310 accessesView PDF Cite

Review ArticleOpen accessIn the abstractThe HCV Replicase InteractomeAntonio Mas, Pilar Clemente-Casares, Eugenio Ramírez, Rosario SabariegosViruses are obligate parasites and can only reproduce within host cells because they lack metabolic pathways to complete their replication cycles. Host factors required in viral replication are mainly those involved in lipid metabolism, cell cycle control and apoptosis, cell-to-cell interactions, immune system regulation, etc. Several inhibitors targeting viral polymerases have been designed. However, the rapid appearance of resistant mutants, … …Current Research in Virology, Vol. 5, Issue 1 · 27 Jul 2016 · 13,210 accessesView PDF Cite

Research ArticleOpen accessIn the abstractHigh Frequency of Stop Codons in the Human Immunodeficiency Virus-1 Protease Gene Frame in Human Immunodeficiency Virus+ Individuals with Below Detectable Levels of Plasma Viremia During Highly Active Antiretroviral TherapyMagdalena Czubala, Kabo Matlho, Maria Arriaga et al.We performed sequence analysis of HIV-1 proviral protease gene fragment (560 base pairs) amplified from ex-vivo peripheral blood mononuclear cells of 83 HIV+ individuals with Below Detectable Levels (BDL) (<20-40 RNA copies/ml plasma) and detectable levels of plasma HIV viremia while on HAART. Noteworthy was the systematic presence of stop codons identified only in the BDL group and not in … …American Journal of Infectious Diseases, Vol. 8, Issue 3 · 14 Nov 2012 · 8,073 accessesView PDF Cite

Research ArticleOpen accessIn the abstractInduction of Caspase-dependant Apoptosis by Enterovirus 70 in Human Lens Epithelial SRA01/04 CellsDequan Chen, Chris Duggan, Donald E. Texada et al.Enterovirus 70 (EV70), an etiological agent of acute hemorrhagic conjunctivitis (AHC), induces apoptosis in human Chang’s conjunctival (HCC) cells. EV70 is also able to infect and replicate in some other human cells such as human lens epithelial SRA01/04 cells and U937 cells. EV70 infection was found to induce apoptosis in SRA01/04 cells. During EV70-induced apoptosis of SRA01/04 cells, the expression … …American Journal of Infectious Diseases, Vol. 1, Issue 2 · 30 Jun 2005 · 6,636 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEvidences of Apoptosis in Hepatitis C Virus-Infected Hepatocytes and Peripheral Blood Monocuclear Cells in the Absence of Liver InjuryViviana Falcón, Nelson Acosta-Rivero, Mineko Shibayama et al.Understanding the mechanism of Hepatitis C Virus (HCV) pathogenesis is an important part of HCV research. In this study, the presence of apoptosis in HCV-infected liver and Peripheral Blood Mononuclear Cells (PBMC) from patients positive for anti-HCV antibodies and negative for serum HCV-RNA was investigated. The samples obtained from 21 patients were studied by in situ Hybridization (ISH), Immunofluorescence, TUNEL … …American Journal of Infectious Diseases, Vol. 1, Issue 1 · 31 Mar 2005 · 6,975 accessesView PDF Cite