نتایج جستجو برای: ribavirin
تعداد نتایج: 6051 فیلتر نتایج به سال:
The precise mechanism by which the broad-spectrum anti-RNA virus agent ribavirin elicits its in vitro antiviral effect has remained a matter of debate. We have demonstrated that inhibition of cellular inosine monophosphate dehydrogenase (IMPDH) activity, and thus depletion of intracellular GTP pools, is the predominant mechanism by which ribavirin inhibits the replication of four flavi- and two...
BACKGROUND & AIMS Improved therapies for peginterferon/ribavirin null or partial responders are needed. This study evaluated daclatasvir (NS5A inhibitor) and asunaprevir (NS3 protease inhibitor) plus peginterferon alfa-2a and ribavirin in this patient population. METHODS This open-label, phase 3 study (HALLMARK-QUAD; NCT01573351) treated patients with chronic hepatitis C virus (HCV) genotype ...
BACKGROUND Greater cumulative exposure to ribavirin increases response to interferon-ribavirin combination therapy for hepatitis C but also induces more severe anaemia. Polymorphisms in the ITPA gene protect against ribavirin-induced anaemia. The maximum dosage of ribavirin that can be tolerated by patients with different ITPA polymorphisms remains unknown. METHODS We developed a mathematical...
In vitro, ribavirin acts as a lethal mutagen in Hantaan virus (HTNV)-infected Vero E6 cells, resulting in an increased mutation load and viral population extinction. In this study, we asked whether ribavirin treatment in the lethal, suckling mouse model of HTNV infection would act similarly. The HTNV genomic RNA (vRNA) copy number and infectious virus were measured in lungs of untreated and rib...
BACKGROUND Hepatitis C virus (HCV) genotype 4 accounts for about 13% of global HCV infections. Because interferon-containing treatments for genotype 4 infection have low efficacy and poor tolerability, an unmet need exists for effective all-oral regimens. We examined the efficacy and safety of an all-oral interferon-free regimen of ombitasvir, an NS5A inhibitor, and paritaprevir (ABT-450), an N...
Interstitial pneumonitis is a rare but potentially fatal side effect occurring from 2 weeks to 16 weeks after the initiation of treatment with pegylated interferon alpha and ribavirin for chronic hepatitis C.Herein, we present a 68-year-old man with chronic hepatitis C virus infection who developed interstitial pneumonitis association with pegylated interferon after 36 weeks initiation of pegyl...
BACKGROUND New regimens for hepatitis C virus (HCV) have shorter treatment durations and increased rates of sustained virologic response compared with existing therapies but are extremely expensive. OBJECTIVE To evaluate the cost-effectiveness of these treatments under different assumptions about their price and efficacy. DESIGN Discrete-event simulation. DATA SOURCES Published literature...
نتایج درمان ترکیبی با اینترفرون و ریباویرین در بیماران مبتلا به هپاتیت مزمن C ، براساس ژنوتایپ ویروس
Background and purpose: About 200,000 of Iranian population are infected with Hepatitis C Virus. On the basis of Iranian consensus on management of chronic hepatitis C (CHC) infection in 2004, combination therapy with conventional α-Interferon (IFN) plus Ribavirin is the first therapeutic choice in CHC patients. Data are limited on treatment response rate in most areas of the country. To asse...
The present study was planned to evaluate the toxic effects of ribavirin on the reproductive parameters in the male Wistar rat. Rats (11--13 weeks old) were treated with 5 injections (i.p.) of 20, 100 or 200 mg/kg/day ribavirin at intervals of 24 h. The testes were processed for histopathological analysis on days 14, 35, 70 and 105 after the last exposure. The parameters studied were body weigh...
In this study, epigallocatechin gallate (EGCG) palmitate was synthesized and its anti-porcine reproductive and respiratory syndrome virus (PRRSV) activity was studied. Specifically, EGCG palmitate was evaluated for its ability to inhibit PRRSV infection in MARC-145 cells when administered as pre-, post-, or co-treatment. EGCG and ribavirin were used as controls. The results showed that a 50% cy...
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