Abstract:
:A molecular epidemiologic study of HIV-1 in Greenland showed distinct transmission clusters correlated with demographic and behavioral data. Resistance mutations were found in a majority of the pol sequences. The objective of the present study was to estimate prevalence of drug resistance in Greenland and identify transmission chains by comparing resistance data with phylogeny and treatment history. Of 60 untreated patients, 15 (25%) had primary resistance mutations. The most prevalent mutations were T69D/N (15%), K70R (15%), and M184V (10%). Four possible transmission chains were identified based on phylogeny and mutation profiles. The clusters consisted of treated and untreated patients and showed the same mutation profiles in both resistance and nonresistance positions. Prevalence of transmitted drug resistance in Greenland (25%) is higher than in Denmark where only 3% transmission was observed. Suboptimal use of nucleoside reverse transcriptase inhibitor (NRTI) in Greenland was reflected in the high prevalence of NRTI-related resistance in the patients. A combination of phylogeny and genotypic resistance tests enabled us to study the number of transmissions and how the virus was transmitted. Resistance mutations detected in untreated patients were backed up by the treatment history of index patients in the possible transmission chains and indicated that these drug-resistant variants were in fact transmitted and had not emerged due to unregistered drug intake.
journal_name
AIDS Res Hum Retrovirusesjournal_title
AIDS research and human retrovirusesauthors
Madsen TV,Lohse N,Jensen ES,Obel N,Ladefoged K,Gerstoft J,Petersen AB,Nielsen C,Jørgensen LBdoi
10.1089/aid.2008.0049subject
Has Abstractpub_date
2008-08-01 00:00:00pages
1073-7issue
8eissn
0889-2229issn
1931-8405journal_volume
24pub_type
杂志文章abstract::Mitochondrial impairment is reported in HIV-infected children receiving antiretroviral therapy (ART), as well as those naive to ART. Whether mitochondrial function recovers with early initiation of ART and sustained viral suppression on long-term ART is unclear. In this study, we evaluate mitochondrial markers in well...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2018.0182
更新日期:2020-01-01 00:00:00
abstract::Human T cell leukemia virus type-1 (HTLV-1) is prevalent worldwide with foci of high prevalence. However, to date no effective vaccine or drug against HTLV-1 infection has been developed. In efforts to define the role of antibodies in the control of HTLV-1 infection, we capitalized on the use of our previously defined...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2013.0214
更新日期:2014-06-01 00:00:00
abstract::New HIV infections among younger men who have sex with men (MSM) in the United States are escalating. Data on HIV infections in college students are limited. In 2010, three MSM college students presented to our clinic with primary HIV infection (PHI) in a single month. To determine the number of college students among...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2012.0130
更新日期:2013-01-01 00:00:00
abstract::We describe four full-length genomic sequences of HIV-1 subtype B isolates from Russia. These full-length HIV-1 genomes were amplified by nested polymerase chain reaction and sequenced. The sequences obtained were subjected to neighbor-joining phylogenetic analysis using a Kimura two-parameter model and to detailed se...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.22.1192
更新日期:2006-11-01 00:00:00
abstract::We investigated whether V3-binding assays might be useful to analyze human immunodeficiency virus type 1 (HIV-1) variants in different geographic regions. We showed that strong cross-reactivity between subtype-specific V3 peptides is almost inevitable in standard indirect enzyme-linked immunosorbent assays (EIA), impa...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1996.12.1279
更新日期:1996-09-01 00:00:00
abstract::Cessation of highly active antiretroviral therapy (HAART) in HIV-infected individual leads to a rebound of viral replication due to reactivation of a viral reservoir composed largely of latently infected memory CD4(+) T cells. Efforts to deplete this reservoir have focused on reactivation of transcriptionally silent l...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2015.0347
更新日期:2016-02-01 00:00:00
abstract::A potential strategy to combat the worldwide AIDS epidemic is to develop a vaginal microbicide that prevents the sexual transmission of HIV-1. One approach for preventing vaginal HIV transmission is to block the viral coreceptor CCR5 with naturally occurring chemokine ligands. In this study, we used a cynomolgus macaq...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.0076
更新日期:2007-01-01 00:00:00
abstract::The HIV-1 envelope glycoprotein complex (Env) can be stabilized by the introduction of a disulfide bond between the gp120 and gp41 subunits. The resulting protein is monomeric, but trimerization can be improved by the introduction of a single helix-breaking residue at the conserved Ile559 site in the N-terminal heptad...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/0889222041524544
更新日期:2004-07-01 00:00:00
abstract::The antiretroviral (ARV) service at Edendale Hospital in Pietermaritzburg, KwaZulu-Natal, South Africa has initiated more than 9,000 adults on therapy since 2004; however, virological outcomes among this patient cohort have not been systematically assessed. We conducted a retrospective chart review of patients initiat...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2014.0011
更新日期:2014-06-01 00:00:00
abstract::Interleukin-15 (IL-15) enhances the effector mechanisms of anti-HIV immune responses and thus is considered a potential adjuvant of HIV-1 vaccine. However, there are a lack of data concerning the relationships between IL-15 expression and regulation in HIV-1-infected patients and the course of disease progression. We ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2010.0317
更新日期:2012-07-01 00:00:00
abstract::The expression of HLA class I antigens is downregulated in CD4+ T cells following in vitro HIV-1 infection. We determined whether the expression of HLA class I antigens is downmodulated in peripheral blood lymphocytes (PBLs) of HIV-1-positive subjects and whether this defect correlates with disease progression. A coho...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1997.13.1509
更新日期:1997-11-20 00:00:00
abstract::The reduction of risk of non-AIDS events after combined antiretroviral therapy (cART) initiation and the crude incidence rate (CIR) of these events in patients who control the viral load without cART (controllers) in a cohort of 574 antiretroviral-naive patients with a baseline CD4 T cell count above 500 cells/mm³ wer...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2012.0367
更新日期:2013-08-01 00:00:00
abstract::The concept that HIV causes AIDS only by directly killing CD4 cells has been questioned by a number of investigators. There has been experimental support for a number of indirect mechanisms such as apoptosis, anergy, superantigen-induced cell proliferation and depletion, defective signaling, molecular mimicry, and aut...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,评审
doi:10.1089/aid.1993.9.287
更新日期:1993-03-01 00:00:00
abstract::The majority of early cases of HIV in Russia were among men who have sex with men (MSM). Despite this and the current resurgence of HIV among MSM globally, little systematic work has been done to assess current HIV risks. We conducted a rapid assessment of HIV and associated risk behaviors among MSM in Russia. An anon...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2011.0264
更新日期:2012-08-01 00:00:00
abstract::Human T lymphotropic virus type I trans-activator Tax protein regulates expression of several cellular genes that are involved in cellular activation, proliferation, and transformation. Tax mediates its regulatory activity through interaction with cellular transcription factors such as members of the cAMP-responsive e...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299310728
更新日期:1999-06-10 00:00:00
abstract::Using blood samples from primary HIV-1 infection (PHI) patients obtained in Lyon, France, we characterized the newly transmitted HIV-1 variants in this area during the 1992-1996 period. As PHI samples allowed the precise timing of the transmission event, we were able to date the introduction of non-B subtypes or recom...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/0889222041524607
更新日期:2004-07-01 00:00:00
abstract::Nucleotide sequences for long terminal repeat (LTR), gag, the protease gene, and pol of a human T-lymphotropic virus type 1 (HTLV-1) isolate of probable Caribbean origin (HTLV-1CH) and a Zairian isolate (HTLV-1EL) were determined providing complete proviral sequences for these isolates. These sequences were compared w...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1991.7.923
更新日期:1991-11-01 00:00:00
abstract::To assess the impact of chronic viral liver disease (CVLD) on hospital admissions and death in HIV-infected patients since the introduction of highly active antiretroviral therapy, all hospital charts, from January 1996 to December 2000, in a large HIV/AIDS reference center in Madrid were reviewed. Discharge diagnosis...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/08892220152644160
更新日期:2001-11-01 00:00:00
abstract::In recent years, increasing numbers of patients infected with HIV-1 non-B subtypes have been treated with modern antiretroviral regimens. Therefore, a better knowledge of HIV drug resistance in non-B strains is crucial. Thus, we compared the mutational pathways involved in drug resistance among the most common non-B s...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2011.0142
更新日期:2012-10-01 00:00:00
abstract::In an attempt to develop an immunization strategy to induce mucosal and circulatory antibodies against SIV antigens, we have investigated the potential of attenuated recombinant vaccinia virus to deliver SIV antigens (gp160 of SIVmac239) to mucosal surfaces of mice. After systemic or mucosal (intragastric, intranasal,...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299309982
更新日期:1999-11-01 00:00:00
abstract::HIV-1 infection causes functional defects in T cells. It also leads to a progressive reduction in numbers of such cells and both CD4+ and CD8+ cells have been reported to undergo apoptosis in culture. A corresponding reduction in B cells has not been described, but these cells are also functionally altered, with repor...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1997.13.1031
更新日期:1997-08-10 00:00:00
abstract::Serologic reactivities of serum or plasma from 55 HIV-1 subjects in four countries--Brazil, Rwanda, Thailand, and Uganda--were examined by V3 peptide immunoassay. Forty-seven (85.5%) of the 55 specimens tested positive to the homologous peptide. A strong correlation between serotype (i.e., pattern of serologic reactiv...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1994.10.1369
更新日期:1994-11-01 00:00:00
abstract::CCR5 has preferentially been used by all circulating HIV-1 subtype C viruses for cell entry. Recently, we reported the highest proportion of CXCR4-utilizing primary isolates among a cohort of 20 South African AIDS patients. This study describes and compares the Env genotypic characteristics from these 20 HIV-1 subtype...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2007.0304
更新日期:2008-05-01 00:00:00
abstract::We characterized two immune escape viruses (SHIV(KU-1/105w52) and SHIV(KU-1/105w98)) from a macaque immunized with DeltavpuDeltanef SHIV-4 and challenged with pathogenic SHIV(KU-1). This macaque developed neutralizing antibodies as well as virus-specific CTLs against the challenge virus. However, the two new viruses c...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922200750006092
更新日期:2000-10-10 00:00:00
abstract::To provide a better understanding of the role of placenta in vertical human immunodeficiency virus (HIV) transmission, we have studied the infection of placental trophoblast in a group of 15 mother-neonate pairs. By nested PCR amplification of the C2V3 env gene region, HIV-1 has been found to infect the placenta in fi...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299309711
更新日期:1999-12-10 00:00:00
abstract::We investigated the Th1 protective and regulatory T and B cell (Treg and Breg) responses to pH1N1 monovalent influenza vaccine (IIV1) in HIV-infected pregnant women on combination antiretroviral therapy (cART). Peripheral blood mononuclear cells (PBMCs) from 52 study participants were cryopreserved before and after va...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2015.0151
更新日期:2015-11-01 00:00:00
abstract::An EBV-transformed lymphoblastoid B cell clone (A12) derived from peripheral blood lymphocytes of an HIV-1-infected individual is described. The immunoglobulin isotype produced by this clone was IgM, and Southern blot analysis of immunoglobulin gene rearrangement showed a monoclonal pattern. The A12 monoclonal antibod...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1989.5.73
更新日期:1989-02-01 00:00:00
abstract::Multiple impairments in HIV-1-specific cytotoxic T cells (CTL) have been reported, but derangements in HIV-1-specific CD8+ T-cell chemotaxis have not been described previously. We assessed migration to SDF-1alpha (stromal cell-derived factor 1-alpha) and CX3CL1 in vitro and expression of cognate receptors, CXCR4 and C...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2007.0259
更新日期:2008-07-01 00:00:00
abstract::The efficacy and safety of recombinant human interferon gamma (rIFN-gamma) in the reduction of opportunistic disease in patients with advanced HIV-1 infection are assessed. A 12-month double-blind, placebo-controlled, multicenter, Phase III trial of rIFN-gamma in HIV-positive patients with CD4 < 100 x 10(9)/liter on s...
journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1089/088922201750251981
更新日期:2001-06-10 00:00:00
abstract::Abstract The effectiveness of any biomedical prevention technology relies on both biological efficacy and behavioral adherence. Microbicide trials have been hampered by low adherence, limiting the ability to draw meaningful conclusions about product effectiveness. Central to this problem may be an inadequate conceptua...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2013.0099
更新日期:2014-01-01 00:00:00