Abstract:
:Human immunodeficiency virus (HIV) infection has altered both the epidemiology and outcome of enteric opportunistic parasitic infections. This study was done to determine the prevalence and species/genotypes of intestinal coccidian and microsporidial infections among HIV/AIDS patients with diarrhea and/or a history of diarrhea alternately with an asymptomatic interval, and their association with CD4 T cell count. This cross-sectional study was done from May 2010 to May 2011 in Shiraz University of Medical Sciences, South of Iran. A blood sample was obtained from HIV-positive patients for a CD4 T cell count upon enrollment. Sociodemographic data and a history of diarrhea were collected by interviewing 356 consecutive participants (273 males and 83 females). Whenever possible more than a fecal sample was collected from all the participants and examined for parasites using direct, physiological saline solution ethyl acetate, an acid-fast trichrome stain, nested polymerase chain reaction, and sequencing techniques for the detection, confirmation, and genotyping of Cryptosporidium spp., Cyclospora cayetanensis, Isospora belli, and intestinal microsporidia (Enterocytozoon bieneusi). The most common opportunistic and nonopportunistic pathogens were Cryptosporidium spp. (C. parvum and C. andersoni), E. bieneusi, Giardia lamblia, Sarcocystis spp., and Blastocystis homonis affecting 34, 8, 23, 1, and 14 patients, respectively. C. cayetanensis, I. belli, Enterobius vermicularis, and Hymenolepis nana were observed in few patients. A CD4 count <200 cells/μl was significantly associated with the presence of opportunistic parasites and diarrhea (p<0.05). Opportunistic intestinal parasites should be suspected in any HIV/AIDS patient with chronic diarrhea. Tropical epidemic nonopportunistic enteric parasitic infections among such patients should not be neglected in Iran.
journal_name
AIDS Res Hum Retrovirusesjournal_title
AIDS research and human retrovirusesauthors
Agholi M,Hatam GR,Motazedian MHdoi
10.1089/AID.2012.0119subject
Has Abstractpub_date
2013-01-01 00:00:00pages
35-41issue
1eissn
0889-2229issn
1931-8405journal_volume
29pub_type
杂志文章abstract::Neutralizing antibodies (NA) against HIV-1MN and HIV-1IIIB, and antibodies binding to synthetic peptides (BA) derived from the gp120 envelope V3 region principal neutralizing determinants (PND) of the HIV-1MN, HIV-1IIIB, and HIV-1Z3 virus strains were assayed in HIV-1 antibody-positive sera from the United States, Hai...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1991.7.831
更新日期:1991-10-01 00:00:00
abstract::Previous studies have demonstrated that lopinavir/ritonavir monotherapy maintained plasma HIV-1 RNA suppression in a large proportion of antiretroviral naive subjects. However, more subjects receiving lopinavir/ritonavir monotherapy experienced confirmed virologic rebound >50 copies/ml compared to a standard three-dru...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,随机对照试验
doi:10.1089/aid.2008.0217
更新日期:2009-03-01 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
pub_type: 杂志文章
doi:10.1089/088922299309784
更新日期:1999-11-20 00:00:00
abstract::HIV-1 disease is associated with many infectious and neoplastic complications. This is particularly true of the genitourinary tract, where high rates of renal disease, neoplasms, voiding and erectile dysfunction, hematuria, opportunistic genitourinary infections, and epididymo-orchitis are found in HIV-1-infected indi...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:
更新日期:1998-04-01 00:00:00
abstract::We previously reported mother-to-child transmission of HIV-1 in nine (6.7%) of 135 children on nevirapine prophylaxis in Vietnam. In the current study, we investigated the appearance and profile of antiretroviral drug (ARV) resistance mutations, the predicted coreceptor usage, and the genetic diversity of HIV-1 strain...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2014.0335
更新日期:2015-08-01 00:00:00
abstract::To investigate how human immunodeficiency virus type 1 (HIV-1) escapes from antibodies directed against the neutralization domain in the third variable region (V3) of gp120, we examined precisely which amino acid contributed to antibody binding. From six HIV-1-infected individuals, sequential sera were tested for anti...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1995.11.1153
更新日期:1995-10-01 00:00:00
abstract::We sought to determine the frequency and profile of HIV-1 BF recombinants in vitro and in vivo. Laboratory HIV-1 strains from subtypes B and F were cocultured and evaluated. Clinical samples from the city of Santos, Brazil, where the first HIV-1 B/F circulating recombinant forms (CRF) were described, were also assesse...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2010.0023
更新日期:2010-09-01 00:00:00
abstract::HIV type 1 (HIV-1) envelope glycoproteins (Env) mediate virus entry and are the target of neutralizing antibodies. Binding of the metastable HIV-1 Env trimer to the CD4 receptor triggers structural rearrangements that mediate Env conformational transitions from a closed conformation to a more open state through an int...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,评审
doi:10.1089/AID.2018.0102
更新日期:2018-09-01 00:00:00
abstract::To evaluate the course of liver fibrosis, 328 HIV-hepatitis C virus (HCV)-coinfected patients (210 HCV treated and 118 HCV untreated) were followed-up for 38-42 months. Liver fibrosis was assessed by biopsy or elastometry at baseline and by elastometry afterward, in addition to other noninvasive indexes. A combined li...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2012.0108
更新日期:2013-02-01 00:00:00
abstract::Studies of HIV molecular evolution and pathogenesis have relied on the polymerase chain reaction (PCR) to provide sequence information from infected tissues. Until recently, studies have been constrained by the limited length of fragments that can be reliably amplified. The addition of a thermostable 3'-exonuclease ac...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1996.12.303
更新日期:1996-03-01 00:00:00
abstract::T epitope mapping in human immunodeficiency virus proteins provides a useful tool for AIDS vaccine design. We have previously shown that four peptides selected from the Gag polyprotein of HIV-1 were able to prime mice for in vitro lymphoproliferative responses. These responses were shown to be MHC restricted, and a po...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1994.10.1241
更新日期:1994-10-01 00:00:00
abstract::The Kento-Mwana project was carried out in Pointe Noire, Republic of the Congo, to prevent mother-to-child HIV-1 transmission. To determine the prevalence of different subtypes and transmitted drug resistance-associated mutations, 95 plasma samples were collected at baseline from HIV-1-positive naive pregnant women en...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2015.0105
更新日期:2015-08-01 00:00:00
abstract::Cross-sectional estimation of HIV incidence could misclassify some established or chronic HIV infections as recent. Usually long-term nonprogressors, elite and viremic controllers, and individuals on ART contribute to misclassification. Local data on the false recent rate (FRR) could minimize misclassification during ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2016.0127
更新日期:2017-01-01 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::Acquisition of cellular proteins by HIV-1 virions is known to alter the physiology of the virus in vitro. Reported studies of this aspect have been largely limited to transformed T cell lines. In this study, we investigated the incorporation of major histocompatibility antigens (HLAs) on a primary macrophage-tropic is...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299311682
更新日期:1999-01-01 00:00:00
abstract::Preexposure prophylaxis (PrEP) with antiretroviral drugs constitutes a promising strategy for HIV prevention. Potent PrEP regimens with reverse transcriptase inhibitors can prevent detectable SHIV infection in a repeated low-dose macaque model that resembles human transmission, supporting plans to quickly move this ap...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2007.0222
更新日期:2008-04-01 00:00:00
abstract::Human T cell leukemia virus protein induces T cells to permanent IL-2-dependent growth. These cells occasionally convert to factor independence. The viral oncoprotein Tax acts as an essential growth factor of transformed lymphocytes and stimulates the cell cycle in the G(1) phase. In T cells and fibroblasts Tax enhanc...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/08892220050193146
更新日期:2000-11-01 00:00:00
abstract::Data indicate the presence in the Seychelles Islands of a high level of human T cell leukemia/lymphoma virus type I (HTLV-I) endemicity as well as the presence of tropical spastic paraparesis/HTLV-I-associated myelopathy (TSP/HAM). We present here the results of an hospital survey performed since 1988 in La Réunion Is...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1994.10.745
更新日期:1994-06-01 00:00:00
abstract::Osteopenia is a common and debilitating side-effect of HAART, yet little is known concerning the effects of HAART on bone metabolism. We reported previously that zidovudine (AZT) stimulates osteoclastogenesis in vitro and causes osteopenia in mice. Here, we confirmed that the AZT-induced osteoclastogenesis is dependen...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.22.1131
更新日期:2006-11-01 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
pub_type: 杂志文章
doi:10.1089/aid.2004.20.1364
更新日期:2004-12-01 00:00:00
abstract::Nucleoside analog-associated sensory neuropathy (NRTI-SN) attributed to stavudine, didanosine, or zalcitabine (the dNRTIs) and distal sensory polyneuropathy (DSP) attributed to HIV are clinically indistinguishable. As inflammatory cytokines are involved in DSP, we addressed a role for inflammation in NRTI-SN by determ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2007.0168
更新日期:2008-02-01 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::Inhibitory factors to human immunodeficiency virus type 1 (HIV-1) in saliva may be responsible for the infrequent isolation of virus from saliva and also may account for the marked infrequency of salivary and/or oral transmission of HIV-1. Incubation of HIV-1 with human saliva followed by addition of the mixture to su...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1990.6.1425
更新日期:1990-12-01 00:00:00
abstract::The purpose of this study was to investigate the mechanism of acquired cellular resistance to AZT, a mechanism that has been described as a potential source of drug resistance in addition to viral mutations. To study this phenomenon the kinetics parameters of thymidine kinase (TK) activity have been defined in CEMazt,...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1996.12.223
更新日期:1996-02-10 00:00:00
abstract::Despite the availability of antiretroviral therapy (ART), HIV-infected drug users, particularly crack cocaine users, continue to have high HIV-related morbidity and mortality. We conducted a cross-sectional analysis of the baseline data for hospitalized HIV-infected crack cocaine users recruited for Project HOPE (Hosp...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2011.0329
更新日期:2012-09-01 00:00:00
abstract::We studied 123 samples from adult chronic HIV patients initiating HAART from various centers around a newly established clinical trial site in Pretoria. Each sample was sequenced in at least one structural gene (pol, gag, and env) or functional gene (vif, vpr, and vpu). A subset of 25 samples was subjected to near ful...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,多中心研究
doi:10.1089/AID.2011.0285
更新日期:2012-09-01 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::Nucleoside analog reverse transcriptase inhibitors (NRTIs) constitute the most commonly used drugs in antiretroviral therapy. NRTIs differ with respect to their host cell toxicity. We compared the in vitro effect of zidovudine (AZT; 2 μg/ml), lamivudine (3TC; 5 μg/ml), stavudine (d4T; 1 μg/ml), and tenofovir (TFV; 1 μ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2010.0067
更新日期:2011-01-01 00:00:00
abstract::To better understand the emergence of HIV-1 variants in Barbados and the association with transmission modes, we analyzed phylogenetic relationships and genetic variability among HIV-1 strains collected in 1996 from 36 antiretroviral therapy-naive patients. Only subtype B variants were present in this sampling, based ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922203764969519
更新日期:2003-04-01 00:00:00
abstract::We have previously used immunotoxins to select for HIV-1 variant cells that transcribe HIV at extremely low levels and fail to produce HIV proteins. Further observation of one of these variants (E9) demonstrated spontaneous in vitro activation of HIV production. The mechanism of activation is different from that of U1...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,评审
doi:10.1089/088922299310052
更新日期:1999-10-10 00:00:00