Abstract:
BACKGROUND:In countries where antiretroviral therapy has been available or is being rapidly expanded, the World Health Organization (WHO) recommends surveillance for transmitted HIV drug resistance (HIVDR) by threshold surveillance methods using specimens from antenatal clinics or voluntary counselling and testing (VCT) sites. The aim of this study was to implement the HIVDR threshold survey in VCT sites in Vietnam, where HIV prevalence is high. Estimating transmitted resistance in the infected population will enable the appropriateness of current antiretroviral drug regimens to be assessed and will inform plans for future HIVDR surveillance. METHODS:Consecutive blood specimens were collected from 70 newly diagnosed HIV-positive clients 18-24 years of age at two sites in Hanoi, Vietnam. Informed consent and serum specimens were obtained from each eligible client, with serum frozen at -70 degrees C until shipping to Thailand for resistance testing using the TruGene system. RESULTS:From February until August 2006, 559 clients were eligible to participate in this survey. Of the 535 clients (95.7%) who agreed to participate, 70 (13%) were HIV-positive and were included in the survey. Of the 70 specimens sent for genotyping, 52 consecutive samples were amplified, 49 of which could be genotyped. Only 1 of 49 genotyped specimens had mutations associated with drug resistance (L74V and Y181C) in the reverse transcriptase gene, indicating that the prevalence of transmitted HIVDR to all drugs and drug classes evaluated was <5%. CONCLUSION:The prevalence of transmitted HIVDR was low in Hanoi as determined using threshold surveillance methods. The Ministry of Health plans to repeat this survey methodology in one more province and to confirm these findings by expanded HIVDR surveillance.
journal_name
Antivir Therjournal_title
Antiviral therapyauthors
Nguyen HT,Duc NB,Shrivastava R,Tran TH,Nguyen TA,Thang PH,McNicholl JM,Leelawiwat W,Chonwattana W,Sidibe K,Fujita M,Luu CM,Kakkar R,Bennett DE,Kaplan J,Cosimi L,Wolfe MIsubject
Has Abstractpub_date
2008-01-01 00:00:00pages
115-21eissn
1359-6535issn
2040-2058journal_volume
13 Suppl 2pub_type
杂志文章,多中心研究abstract:BACKGROUND:This study evaluates the added benefit when estimating antiretroviral drug resistance of combining all available resistance test results in a cumulative genotype relative to using the latest genotype alone. METHODS:The prevalence of resistance and genotypic sensitivity scores (GSS) predicted by the latest a...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP1753
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Tenofovir disoproxil fumarate (TDF)-based regimen is a treatment option for HIV-infected patients. TDF dose adjustment is recommended in patients with impaired renal function. We assessed the impact of TDF dose adjustment on renal function and tenofovir trough concentration. METHODS:Fourteen HIV patients fo...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3137
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Protease inhibitors (PI) have relatively low penetration into the genital tract, raising concerns about the potential for genital HIV RNA shedding in patients taking PI-based regimens, particularly PI monotherapy (PI-mono). METHODS:We measured HIV RNA and PI drug concentrations in samples of semen, cervico-...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3340
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND/AIMS:The role of antibody in hepatitis C virus (HCV) infection remains unclear although many reports attest to its role in viral clearance. Here we describe epitopes that are recognized by antibody present in the serum of infected patients and show that such epitopes can induce neutralizing antibodies. METH...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:Cerebrospinal fluid (CSF) HIV RNA is commonly used as a marker of compartmental antiviral activity in HIV-positive patients. Undetectable CSF HIV RNA levels have been associated with low CSF neopterin levels and better neurocognitive performances. The aim of this study was to analyse the prevalence and predi...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3140
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Proton magnetic resonance spectroscopy (1H-MRS) and neuropsychological tests may be useful for monitoring the effectiveness of highly active antiretroviral therapy (HAART) in HIV-associated brain injury. We aimed to evaluate whether brain abnormalities will improve 3 months after HAART. METHOD:Thirty-three ...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:
更新日期:2003-02-01 00:00:00
abstract:BACKGROUND:A complete virological response is closely related to the long-term outcome of patients with chronic hepatitis B and prevention of emerging HBV mutations. We aimed to evaluate the efficacy of tenofovir disoproxil fumarate (TDF) monotherapy compared to entecavir-adefovir dipivoxil (ETV-ADV) combination therap...
journal_title:Antiviral therapy
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.3851/IMP3169
更新日期:2018-01-01 00:00:00
abstract::Treatment of primary human immunodeficiency virus (HIV) infection (PHI) may provide an opportunity to achieve a long lasting suppression of viral replication. Although there is growing evidence of the benefit of treating PHI, clinical data are still very limited. Special therapeutic considerations in this clinical set...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract::Here, we describe a case of an HIV-infected patient with right lower limb oedema that appeared after initiation of tenofovir and emtricitabine treatment. The patient was fully investigated by serial heart and vessel echo-Doppler examination. Oedema of the lower limb was attributed to a transient drug-induced fivefold ...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP1302
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:This study investigated survival in people living with HIV being followed-up from 5 and 10 years after antiretroviral therapy (ART) initiation in a multi-country Asian cohort. METHODS:We included patients in follow-up >5 years after ART initiation. Factors associated with mortality beyond 5 and 10 years on ...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3358
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Serum HBV DNA level is crucial in the management of chronic hepatitis B (CHB); however, the assay is expensive and cannot be used widely. Therefore, we explored the possibility of hepatitis B surface antigen (HBsAg) quantification as a surrogate marker for HBV DNA level in CHB patients. METHODS:A total of 2...
journal_title:Antiviral therapy
pub_type: 杂志文章,随机对照试验
doi:10.3851/IMP1696
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Eczema vaccinatum is the most common severe pathology associated with smallpox vaccination (vaccinia virus), occurring at high rates among individuals with a previous history of atopic dermatitis (atopic eczema). METHODS:Monoclonal antibodies capable of neutralizing vaccinia virus, anti-H3 and anti-B5, were...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP1717
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Hepatitis delta virus (HDV) infection therapy is unclear. This systematic analysis aimed to clarify the evidence on the efficacy of interferon (IFN)-α-based therapy in HDV. METHODS:We performed a systematic search on electronic databases including MEDLINE (1970 to January 2011), Web of Science, The Cochrane...
journal_title:Antiviral therapy
pub_type: 杂志文章,评审
doi:10.3851/IMP2306
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Pegylated interferon/ribavirin combination is currently the standard treatment for chronic hepatitis C virus (HCV) infection. Body weight adjustment of ribavirin is crucial for response. However, previous studies found no relation between ingested dose and plasma concentration. The aim of this study was to d...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Insulin resistance (IR) was one of the first reported complications in HIV-positive patients who were receiving antiretroviral therapy (ART). However, the metabolic effects of newer fixed-dose ART combinations are unclear. METHODS:This Phase I prospective randomized open-label study evaluated the effects on...
journal_title:Antiviral therapy
pub_type: 杂志文章,随机对照试验
doi:10.3851/IMP3049
更新日期:2016-01-01 00:00:00
abstract::Transmission of drug-resistant variants is influenced by several factors, including the prevalence of drug resistance in the population of HIV-1-infected patients, HIV-1 RNA levels and transmission by recently infected patients. In order to evaluate the impact of these factors on the transmission of drug-resistant var...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:
更新日期:2004-06-01 00:00:00
abstract::The effectiveness of current antiretroviral therapies has led to more patients receiving long-term therapy, and increasing numbers of older patients. The complex interactions between HIV infection, ageing, comorbid conditions and drug-related toxicities, and their combined effects on patient health and quality of life...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP1470
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:With the advent of the protease inhibitors boceprevir and telaprevir a novel therapy approach for HCV genotype 1 infected subjects has become standard of care. Quantification of HCV viral load (VL) represents an important predictor of treatment response. METHODS:Two different real-time PCR platforms, the CO...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP2723
更新日期:2014-01-01 00:00:00
abstract::To our knowledge, there are no previously published cases of enteroviral infection complicated by pityriasis lichenoides et varioliformis acuta (PLEVA). A 30-year-old woman is reported with a severe form of PLEVA, preceded by hand, foot and mouth disease. Immunosuppressive treatment with cyclosporin A resulted in rapi...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3012
更新日期:2016-01-01 00:00:00
abstract::In order to study the inhibitory effect of various reverse transcriptase inhibitors (RTIs) on cell-free HIV, we adapted a recently described in vitro system, based on co-cultures of dendritic cells and resting CD4 T cells, modelling early target cells during sexual transmission. The compounds tested included the secon...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVE:To assess the impact of nucleoside analogue reverse transcriptase inhibitor (NRTI) combination therapy on muscle and liver lactate metabolism in HIV-infected patients. METHODS:This cross-sectional study involved HIV-infected patients who were either antiretroviral-naive (Group 1) or were receiving either a s...
journal_title:Antiviral therapy
pub_type: 杂志文章,多中心研究
doi:
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Porcine reproductive and respiratory syndrome virus (PRRSV) causes significant economic loss in the swine industry. Currently, there is no effective way to prevent PRRSV infection. Sodium tanshinone IIA sulfonate (STS), a natural compound derived from Salvia miltiorrhiza, was shown to possess anti-PRRSV acti...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP2694
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Neuraminidase (NA) inhibitors (NAIs), including oseltamivir and zanamivir, play an important therapeutic role against influenza infections in immunocompromised patients. In such settings, however, NAI therapy may lead to the emergence of resistance involving mutations within the influenza surface genes. The ...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3344
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Ribavirin augments sustained virological response when administered with pegylated interferon for the treatment of chronic HCV infection. The impact of ribavirin plasma concentration on outcome in individuals receiving interferon-free regimens has not been evaluated. METHODS:Stored plasma samples were retri...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP2984
更新日期:2016-01-01 00:00:00
abstract::HBV is a hepatotropic and non-cytopathic virus that causes more than one million deaths annually from liver cirrhosis and hepatocellular carcinoma. As the virus itself is non-cytopathic, it is widely accepted that both viral control and liver pathology are mediated by the host immune system. Until recently, the focus ...
journal_title:Antiviral therapy
pub_type: 杂志文章,评审
doi:10.3851/IMP1620
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Nucleoside (or nucleotide) reverse transcriptase inhibitors (NRTIs) cause side effects in some patients, prompting the use of either partly or fully NRTI-sparing regimens. METHODS:We used data from the Swiss HIV Cohort Study to estimate the effectiveness of two new dolutegravir dual regimens relative to the...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3310
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Rilpivirine-based regimens are now preferred or alternative first-line regimens according to many HIV treatment guidelines. Recently, a surveillance study conducted in Argentina determined that prevalence of pretreatment resistance to first-generation non-nucleoside reverse transcriptase inhibitors (NNRTIs) ...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3147
更新日期:2017-01-01 00:00:00
abstract::Oseltamivir phosphate is an FDA-approved treatment for influenza that has been available for prescription use in the USA since 1999. The present report describes findings from a post-marketing safety study of skin reactions associated with oseltamivir use. All patients in the claims-derived Ingenix Research Database w...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:
更新日期:2004-04-01 00:00:00
abstract::Varicella zoster virus (VZV) is less susceptible than herpes simplex virus to acyclovir. The optimal acyclovir regimen during VZV encephalitis remains unknown. We report two cases of acute renal failure after an increase in acyclovir dosage from 10 mg to 15 mg/kg/8 h during the treatment of VZV encephalitis according ...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP3313
更新日期:2019-01-01 00:00:00
abstract::The current prevalence of cognitive impairment in HIV-infected individuals is surprisingly high, even in those with undetectable plasma HIV RNA. The aetiology is unknown but one possibility is inadequate control of persistent central nervous system (CNS) HIV infection. The CNS Penetration Effectiveness (CPE) rank has ...
journal_title:Antiviral therapy
pub_type: 杂志文章
doi:10.3851/IMP2951
更新日期:2015-01-01 00:00:00