A high frequency of defective vif genes in peripheral blood mononuclear cells from HIV type 1-infected individuals.

abstract：:In this study, the relationship between biological phenotypes, coreceptor usages, and sequence patterns of V1V2 or V3 regions on HIV-1 envelope gp 120 was carefully analyzed based on the existing isolates in the Los Alamos National Laboratory sequence database. Obviously, SI/NSI phenotypes were closely linked to the c...

journal_title：AIDS research and human retroviruses

authors： Dong XN,Chen X,Chen Y,Ablimit A,Ye Z,Wu Y,Chen YH

更新日期：2005-03-01 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

authors： Puppo F,Brenci S,Bosco O,Lanza L,Barocci S,Nocera A,Ghio M,Contini P,Setti M,Scudeletti M,Indiveri F

更新日期：1997-11-20 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

authors： Jamaluddin MS,Hu PW,Jan Y,Siwak EB,Rice AP

更新日期：2016-02-01 00:00:00

abstract：:The proportion of human immunodeficiency virus type 1 (HIV-1) among Vietnamese injecting drug users (IDUs) in Melbourne, Australia exceeds that of the background population. To investigate the molecular epidemiology of HIV-1 among this group, the C2-V4 region of the HIV-1 envelope was directly sequenced from 11 Vietna...

journal_title：AIDS research and human retroviruses

authors： Ryan CE,Elliott JH,Middleton T,Mijch AM,Street AC,Hellard M,Crofts N,Crowe SM,Oelrichs RB

更新日期：2004-12-01 00:00:00

abstract：:To investigate HIV-1-related B cell disorders, the quantity of CD27 positive (CD27+) B cells and their CD38, CD95, and bcl-2 intensities were examined by flow cytometry analysis in 16 drug-naive patients, 27 highly active antiretroviral therapy (HAART)-treated patients, and 20 uninfected controls. CD27+ B cells have b...

journal_title：AIDS research and human retroviruses

authors： Chong Y,Ikematsu H,Kikuchi K,Yamamoto M,Murata M,Nishimura M,Nabeshima S,Kashiwagi S,Hayashi J

更新日期：2004-02-01 00:00:00

abstract：:Assays to determine HIV incidence from cross-sectional surveys have exhibited a high rate of false-recent misclassification in Kenya and Uganda where HIV subtypes A and D predominate. Samples from individuals infected with HIV for at least 2 years with known infecting subtype (133 subtype A, 373 subtype D) were tested...

journal_title：AIDS research and human retroviruses

authors： Mullis CE,Munshaw S,Grabowski MK,Eshleman SH,Serwadda D,Brookmeyer R,Nalugoda F,Kigozi G,Kagaayi J,Tobian AA,Wawer M,Gray RH,Quinn TC,Laeyendecker O

更新日期：2013-08-01 00:00:00

abstract：:It is known that transmitted drug resistance (TDR) will most likely emerge in regions where antiretroviral therapy (ART) has been widely available for years. However, after a decade of rapid scale-up of ART in China, there are few data regarding TDR among HIV-infected patients prior to initiating first-line ART in Chi...

journal_title：AIDS research and human retroviruses

authors： Wang X,He C,Xing H,Liao L,Xu X,He J,Liu Y,Ling H,Liang S,Hsi JH,Ruan Y,Shao Y

更新日期：2012-12-01 00:00:00

abstract：:Entry inhibitor is a new class of drugs that target the viral envelope protein. This region is variable; hence resistance to these drugs may be present before treatment. The aim of this study was to analyze the frequency of patients failing treatment with transcriptase reverse and protease inhibitors that would respon...

journal_title：AIDS research and human retroviruses

authors： Alencar CS,Nishiya AS,Ferreira S,Giret MT,Diaz RS,Sabino EC

更新日期：2010-12-01 00:00:00

abstract：:Mutant HIV virions, encoding C-terminally truncated Env proteins, exhibit a cell-specific replication defect, i.e., they can replicate in a few T cell lines (termed permissive cells) but not in the majority of T cell lines (termed nonpermissive cells). We have studied the properties of two mutant virions (pNL-Tr712 an...

journal_title：AIDS research and human retroviruses

authors： Holtkotte D,Pfeiffer T,Bosch V

更新日期：2007-05-01 00:00:00

abstract：:We have evaluated the genetic diversity of HIV-1 strains infecting injecting drug users (IDUs) in Lisbon, Portugal. Heteroduplex mobility assay and/or phylogenetic analysis revealed that env (C2V3C3 or gp41) subtype B is present in 63.7% of the 135 viral samples studied, followed by subtypes G (23.7%), A (6.7%), F (5....

journal_title：AIDS research and human retroviruses

authors： Esteves A,Parreira R,Piedade J,Venenno T,Franco M,Germano de Sousa J,Patrício L,Brum P,Costa A,Canas-Ferreira WF

更新日期：2003-06-01 00:00:00

abstract：:Although the effect of highly active antiretroviral therapy (HAART) on HIV-1 replication has been established, the mechanisms involved in restoration of immune responses and reconstitution remain unknown. This study provides evidence of changes in expression of type 1 and type 2 cytokine-specific mRNA occurring during...

journal_title：AIDS research and human retroviruses

authors： Imami N,Antonopoulos C,Hardy GA,Gazzard B,Gotch FM

更新日期：1999-11-20 00:00:00

abstract：:Two cynomolgus macaques were infected with a genetically complex challenge stock of simian immunodeficiency virus (SIVmac251-32H). The polymerase chain reaction (PCR) was used to amplify the env gp41, rev, and nef overlapping coding sequences from provirus present in the blood of both animals at 1, 6, and 15 months po...

journal_title：AIDS research and human retroviruses

authors： Slade A,Jones S,Almond N,Kitchin P

更新日期：1993-02-01 00:00:00

abstract：:Gag-specific immune responses and changes in HIV-1 RNA levels were evaluated in eight HIV-1-infected persons, in order to assess the immunotherapeutic potential HIV-1 p17/p24: Ty virus-like particles (p24-VLP). All treated subjects showed transient and dose-dependent proliferative responses to the Ty-VLP carrier (stim...

journal_title：AIDS research and human retroviruses

authors： Klein MR,Veenstra J,Holwerda AM,Roos MT,Gow I,Patou G,Coutinho RA,De Wolf F,Miedema F

更新日期：1997-03-20 00:00:00

abstract：:C-C chemokine receptor (CCR) 5 (CCR5) is the main HIV-1 coreceptor involved in virus entry and cell-to-cell spread during acute and chronic infections: such CCR5 and T cell tropic viruses are adapted to and replicate in CD4+ memory T cells. Polymorphisms in CCR5 regulate CCR5 expression, which, in turn, influences HIV...

journal_title：AIDS research and human retroviruses

authors： Mehlotra RK

更新日期：2020-10-01 00:00:00

abstract：:Pathogenic microorganisms encode proteins that antagonize specific aspects of innate or adaptive immunity. Just as the study of the HIV-1 accessory protein Vif led to the identification of cellular cytidine deaminases as host defense proteins, the study of HIV-1 Vpu recently led to the discovery of the interferon-indu...

journal_title：AIDS research and human retroviruses

authors： Tokarev A,Skasko M,Fitzpatrick K,Guatelli J

更新日期：2009-12-01 00:00:00

abstract：:To design a vaccine that will remain potent against HIV-1, the immunogenic regions in the viral envelope that tend to change as well as those that remain constant over time must be identified. To determine the neutralization profiles of sequential viruses over time and study whether neutralization patterns correlate w...

journal_title：AIDS research and human retroviruses

authors： Nyambi P,Burda S,Urbanski M,Heyndrickx L,Janssens W,Vanham G,Nadas A

更新日期：2008-12-01 00:00:00

abstract：:HIV inhibitors targeted at the virus-associated reverse transcriptase (RT) can be divided into two groups, depending on whether they are targeted at the substrate or nonsubstrate binding site. To the first group belong the 2',3'-dideoxynucleosides (i.e., DDC, DDI), 3'-azido-2',3'-dideoxynucleosides (i.e., AZT), 3'-flu...

journal_title：AIDS research and human retroviruses

authors： De Clercq E

更新日期：1992-02-01 00:00:00

abstract：:HIV infection is associated with qualitative and functional immune deficiencies. It has been shown that the in vitro infection of CD4+ cells with HIV was associated with sustained elevation of cAMP and cGMP. In the present report the role of cAMP on HIV replication in MT-4 cells was investigated. The MT-4 cells were i...

journal_title：AIDS research and human retroviruses

authors： Nokta MA,Pollard RB

更新日期：1992-07-01 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

authors： Barin F,Lahbabi Y,Buzelay L,Lejeune B,Baillou-Beaufils A,Denis F,Mathiot C,M'Boup S,Vithayasai V,Dietrich U,Goudeau A

更新日期：1996-09-01 00:00:00

abstract：:Six morphine-dependent and three control macaques were infected with a mixture of SIV/SHIV. Half of the animals in the morphine group developed accelerated disease (rapid progressor) and died within 20 weeks postinfection. The evolution of the envelope gene in the brain of the rapid progressor and morphine-dependent g...

journal_title：AIDS research and human retroviruses

authors： Rivera-Amill V,Noel RJ Jr,Román IR,Flores YG,Buch S,Kumar A

更新日期：2009-05-01 00:00:00

abstract：:Evidence derived from studies concerning brain metabolism and brain electrical activity suggests that temporal lobe functioning is impaired in the course of HIV infection. To test the hypothesis of temporal lobe dysfunction in HIV infection, we utilized computerized electroencephalogram (EEG) analysis to evaluate temp...

journal_title：AIDS research and human retroviruses

authors： Grassi B,Locatelli M,Lazzarin A,Scarone S

更新日期：1996-04-10 00:00:00

abstract：:HIV infection is associated with a state of chronic, generalized immune activation that has been shown in many studies to be a key predictor of progression to AIDS. Consistent with this model, nonpathogenic SIV infections of natural hosts, such as the sooty mangabeys, are characterized by low levels of immune activati...

journal_title：AIDS research and human retroviruses

authors： d'Ettorre G,Paiardini M,Ceccarelli G,Silvestri G,Vullo V

更新日期：2011-04-01 00:00:00

abstract：:We have previously shown that the cell line 6D5(451) chronically infected with the HIV-1 isolate HTLV-III(451), secretes the HIV-1 envelope glycoproteins gp120 and gp160 in the extracellular medium. The HTLV-III(451) gp120 and gp160 were purified by sequential affinity chromatographic steps using a monoclonal antibody...

journal_title：AIDS research and human retroviruses

authors： Kalyanaraman VS,Rodriguez V,Veronese F,Rahman R,Lusso P,DeVico AL,Copeland T,Oroszlan S,Gallo RC,Sarngadharan MG

更新日期：1990-03-01 00:00:00

abstract：:A better understanding of the structure and biochemical properties of the replicative machinery of human immunodeficiency virus type 1 (HIV-1) may be useful in the screening and design of drugs that could be used to treat AIDS. We have previously described a recombinant strain of Escherichia coli that produces HIV-1 r...

journal_title：AIDS research and human retroviruses

authors： Clark PK,Ferris AL,Miller DA,Hizi A,Kim KW,Deringer-Boyer SM,Mellini ML,Clark AD Jr,Arnold GF,Lebherz WB 3rd

更新日期：1990-06-01 00:00:00

abstract：:Human immunodeficiency virus (HIV) infection represents a major global health problem, with HIV now recognized as the fourth leading cause of death on a worldwide basis. One approach to developing effective anti- HIV interventions is to identify and understand the molecular mechanisms by which natural genetic variatio...

journal_title：AIDS research and human retroviruses

authors： Donfack J,Buchinsky FJ,Post JC,Ehrlich GD

更新日期：2006-10-01 00:00:00

abstract：:In Taiwan, sexual transmission is responsible for most HIV-1 infections with two dominant subtypes, subtype B and CRF01_AE, distributing among homosexual and heterosexual groups, respectively. Recently, intravenous drug use has become an emerging route of HIV-1 transmission and contributed to a significant increase of...

journal_title：AIDS research and human retroviruses

authors： Chang SY,Sheng WH,Lee CN,Sun HY,Kao CL,Chang SF,Liu WC,Yang JY,Wong WW,Hung CC,Chang SC

更新日期：2006-11-01 00:00:00

abstract：:Japan is one of the highest endemic areas of the world for human T cell leukemia-lymphoma virus type I (HTLV-I). To gain new insight as to the origin of this virus in Japan and especially in the southern islands of the archipelago, we investigated the long terminal repeat (LTR) of 67 newly isolated HTLV-I proviral DNA...

journal_title：AIDS research and human retroviruses

authors： Vidal AU,Gessain A,Yoshida M,Mahieux R,Nishioka K,Tekaia F,Rosen L,De Thé G

更新日期：1994-11-01 00:00:00

abstract：:To understand the pathogenic potential and the true extent of human T-cell leukemia virus type II (HTLV-II) infection, it is important to develop a specific HTLV-II antigen-based serological test. Plasmid pIIB was constructed and induced in Escherichia coli to express a recombinant protein (RP) containing 140 amino ac...

journal_title：AIDS research and human retroviruses

authors： Chen YM,Essex M

更新日期：1991-05-01 00:00:00

abstract：:The immunoreactivity of HTLV-III-infected individuals and virus-inoculated chimpanzees with gp120 synthetic peptides of the HTLV-III gp120 envelope principle neutralizing domain (amino acid 301-324 sequences), derived from the HTLV-III isolates 3B, RF, MN, WMJ2, and SC were determined. Sequential bleeds from an infect...

journal_title：AIDS research and human retroviruses

authors： Devash Y,Matthews TJ,Drummond JE,Javaherian K,Waters DJ,Arthur LO,Blattner WA,Rusche JR

更新日期：1990-03-01 00:00:00

abstract：:An increasing number of circulating recombinant forms (CRFs) and unique recombinant forms (URFs) all over the world has necessitated being vigilant about new recombinants. Since the first report of a recombinant virus with an A1/C mosaic in 1998 more and more B/C and A/C recombinant viruses are being reported from Ind...

journal_title：AIDS research and human retroviruses

authors： Pandey S,Tripathy S,Paranjape R

更新日期：2013-09-01 00:00:00