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Pàgina 1 des de 1911 resultats
Antiviral Activity of Basidiomycetous Fungi Against Groundnut Bud Necrosis Virus in Tomato
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Tomato is an important vegetable crop which is severely affected by Groundnut bud necrosis virus (GBNV). Until now effective antiviral agents have not been reported for the management of necrosis disease caused by GBNV. Therefore, a study was undertaken to manage the necrosis disease caused by GBNV
Progressive outer retinal necrosis syndrome: successful treatment with a new combination of antiviral drugs.
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OBJECTIVE
To describe a case of progressive outer retinal necrosis syndrome, successfully treated with a new combination of antiviral drugs.
METHODS
The patient was treated with a combined therapy of antiviral drugs that includes: intravenous acyclovir 10 mg/kg, three intravitreal injections of
Evaluation on the antiviral activity of ribavirin against infectious hematopoietic necrosis virus in epithelioma papulosum cyprini cells.
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Infectious hematopoietic necrosis virus (IHNV) causes high mortality in several economically important salmonid fishes, but there is no approved therapy up to now. To address the urgent need for therapeutics to combat IHNV infection, we investigate the anti-IHNV activities of 14 common antiviral
The role of interferon-beta 1 and the 26-kDa protein (interferon-beta 2) as mediators of the antiviral effect of interleukin 1 and tumor necrosis factor.
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This study confirms our earlier finding that human interleukin (IL)-1 beta exerts an antiviral effect on diploid fibroblasts and on MG-63 osteosarcoma cells. It also extends the observation in that a similar effect was noted on aged but not freshly trypsinized HEp-2 cells, and that not only IL-1
Antiviral effect and virus-host interactions in response to alpha interferon, gamma interferon, poly(i)-poly(c), tumor necrosis factor alpha, and ribavirin in hepatitis C virus subgenomic replicons.
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The recently developed hepatitis C virus (HCV) subgenomic replicon system was utilized to evaluate the efficacy of several known antiviral agents. Cell lines that persistently maintained a genotype 1b replicon were selected. The replicon resident in each cell line had acquired adaptive mutations in
Evaluation on the antiviral effect of a hydroxycoumarin against infectious hematopoietic necrosis virus infection in vitro and in vivo.
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Infectious hematopoietic necrosis (IHN) caused by the viral pathogen infectious hematopoietic necrosis virus (IHNV) is a highly contagious disease of salmonid species, resulting in significant economic impact. The previous study showed a hydroxycoumarin derivative 7-[6-(2-methylimidazole) hexyloxy]
Antiviral selection in the management of acute retinal necrosis.
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There is no consensus on the optimal antiviral regimen in the management of acute retinal necrosis, a disease caused by herpetic viruses with devastating consequences for the eye. The current gold standard is based on retrospective case series. Because the incidence of disease is low, few
Tumor necrosis factor genetic polymorphisms and response to antiviral therapy in patients with chronic hepatitis C.
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OBJECTIVE
Hepatitis C virus (HCV) is the major causal agent of non-A, non-B hepatitis and the leading indication for liver transplantation worldwide. The emerging field of immunogenetics has confirmed the significant role of heritability in host immune responses to infectious pathogens. Both the
Antiviral function of tilapia hepcidin 1-5 and its modulation of immune-related gene expressions against infectious pancreatic necrosis virus (IPNV) in Chinook salmon embryo (CHSE)-214 cells.
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Antimicrobial peptides, small cysteine-rich molecules, play vital roles in host defense mechanisms against pathogen infection. Recently, tilapia hepcidin (TH)1-5, was characterized, and its antimicrobial functions against several pathogens were reported. Herein, we investigated the antiviral
Cytotoxic T lymphocyte control of acute lymphocytic choriomeningitis virus infection: interferon gamma, but not tumour necrosis factor alpha, displays antiviral activity in vivo.
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Virus-specific cytotoxic T lymphocytes (CTL) mediate their antiviral activity either by direct lysis of infected cells, or by the release of soluble lymphokines, or by a combination of the two. We have examined the role played by interferon-gamma (IFN-gamma) and tumour necrosis factor (TNF alpha) in
Individual differentiation of innate antiviral immunity in humans; the role of endogenous interferons and tumor necrosis factor in the immunity of leukocytes.
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The natural antiviral immunity of human lymphocytes, leukocytes from peripheral blood and whole-blood cultures was studied using the method of infection with two viruses belonging to different taxonomic groups, vesicular stomatitis virus (VSV) and encephalomyocarditis virus (EMCV). The kinetics of
Modulation of antiviral immune responses by exogenous cytokines: effects of tumour necrosis factor-alpha, interleukin-1 alpha, interleukin-2 and interferon-gamma on the immunogenicity of an inactivated rabies vaccine.
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In vivo administration of exogenous cytokines may influence elicited immune responses, and hence may change the efficacy of a vaccine. We investigated the effects of tumour necrosis factor-alpha (TNF-alpha), interleukin-1 alpha (IL-1 alpha), interleukin-2 (IL-2) and interferon-gamma (IFN-gamma) on
Effects of RP 55778, a tumor necrosis factor alpha synthesis inhibitor, on antiviral activity of dideoxynucleosides.
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Tumor necrosis factor alpha (TNF-alpha) is overexpressed during human immunodeficiency virus (HIV) infection. RP 55778, a TNF-alpha synthesis inhibitor, decreases HIV replication in monocytes/macrophages. Therapeutic use of RP 55778 in vivo, like that of other biological response modifiers, would
Systemic side effects of antiviral therapy in a patient with acute retinal necrosis.
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OBJECTIVE
To report a case of Acute Retinal Necrosis (ARN)-developed nephrotoxicity during intravenous acyclovir treatment and toxic hepatitis during oral valacyclovir treatment.
METHODS
Interventional case report.
METHODS
Retrospective chart review.
RESULTS
A 45-year-old male with ARN treated with
Antiviral effects of recombinant human tumor necrosis factor.
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The antiviral action of recombinant human tumor necrosis factor (TNF) was studied using assay systems to determine inhibition of viral cytopathic effect (CPE), as well as suppression of virus growth measured by plaque assays. TNF was cloned and prepared by Asahi Chemical Industry, Japan. Antiviral
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