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immunology hiv

Marco Gelpi, Hans J Hartling, Kristina Thorsteinsson, Jan Gerstoft, Henrik Ullum, Susanne D Nielsen
BACKGROUND: Symptomatic primary HIV infection is associated with an adverse prognosis, and immediate initiation of combination antiretroviral therapy (cART) is recommended. However, little is known about immunological predictors of immune recovery. Thymic Stromal Lymphopoietin (TSLP) is a cytokine that promotes CD4+ T cells homeostatic polyclonal proliferation and regulates Th17/regulatory T-cell balance, immunological functions known to be affected during primary HIV infection. The aim of this study was to describe immune recovery in primary and chronic HIV infection and possible impact of TSLP...
October 21, 2016: BMC Infectious Diseases
Seema T Meloni, Charlotte A Chang, Geoffrey Eisen, Toyin Jolayemi, Bolanle Banigbe, Prosper I Okonkwo, Phyllis J Kanki
BACKGROUND: While there has been a rapid global scale-up of antiretroviral therapy programs over the past decade, there are limited data on long-term outcomes from large cohorts in resource-constrained settings. Our objective in this evaluation was to measure multiple outcomes during first-line antiretroviral therapy in a large treatment program in Nigeria. METHODS: We conducted a retrospective multi-site program evaluation of adult patients (age ≥15 years) initiating antiretroviral therapy between June 2004 and February 2012 in Nigeria...
2016: PloS One
Rafael E Pedro, Débora A Guariglia, Sidney B Peres, Solange M Moraes
BACKGROUND: Human immunodeficiency virus-associated lipodystrophy syndrome (HALS) is a major problem among people living with HIV/aids. The exercise training has been used for its treatment; however, the knowledge about benefits and safety still is emerging. The aim was systematically review the literature for physiological, metabolic, immunologic, and morphologic adaptations to aerobic, resistance, and concurrent training in people living with HALS. METHODS: A search of the Medline, Embase, Cinahl, Lilacs, Scielo, Web of Science, the Cochrane Controlled Trials Register Library and PEDro was performed...
October 20, 2016: Journal of Sports Medicine and Physical Fitness
Robert Battat, Marc Jhonson, Lorne Wiseblatt, Cruff Renard, Laura Habib, Manouchka Normil, Brian Remillard, Timothy F Brewer, Galit Sacajiu
BACKGROUND: Recent calls for reform in healthcare training emphasize using competency-based curricula and information technology-empowered learning. Continuing Medical Education programs are essential in maintaining physician accreditation. Haitian physicians have expressed a lack access to these activities. The Haiti Medical Education Project works in alliance with Haitian medical leadership, faculty and students to support the Country's medical education system. We present the creation, delivery and evaluation of a competency-based continuing medical education curriculum for physicians in rural Haiti...
October 19, 2016: BMC Medical Education
Sanjiv M Baxi, Rebecca Scherzer, Vasantha Jotwani, Michelle M Estrella, Alison G Abraham, Chirag R Parikh, Michael R Bennett, Mardge H Cohen, Marek J Nowicki, Deborah R Gustafson, Anjali Sharma, Mary A Young, Michael G Shlipak
BACKGROUND: Urine biomarkers have helped identify persons at risk for progressing to kidney disease in the setting of HIV infection. We explored factors associated with changes in three urine biomarkers over 10 years among women living with HIV. METHODS: Prospective cohort of 294 HIV-infected women from the multicenter Women's Interagency HIV Study (WIHS). Predictors included HIV viral and immunological parameters, co-morbid conditions and health-related behaviors...
October 18, 2016: Journal of Acquired Immune Deficiency Syndromes: JAIDS
Madhavan Nair, Vidya Sagar, Sudheesh Pilakka-Kanthikeel
Interplay between lncRNAs and mRNAs is rapidly emerging as a key epigenetic mechanism in controlling various cell functions. HIV can actively infect and/or can persist latently for years by manipulating host epigenetics; however, its molecular essence remains undiscovered in entirety. Here for the first time, we delineate the influence of HIV on global lncRNAs expression in monocytic cells lines. Our analysis revealed the expression modulation of nearly 1060 such lncRNAs which are associated with differentially expressed mRNAs in active and latent infection...
October 19, 2016: Scientific Reports
Claudia Colomba, Marcello Trizzino, Claudia Gioè, Danilo Di Bona, Alessandra Mularoni, Antonio Cascio
Here we describe the case of a HIV-infected patient with polycystic kidney disease and end stage renal diseases not transplantable due to the persistence of a CD4 count <200 notwithstanding a good virological response to highly active antiretroviral therapy and suggest that such limitation to kidney transplantation in such as cases might be bypassed.
2016: IDCases
P Mencarini, R Bellagamba, A Oliva, P Ghirga, M L Giancola, A Corpolongo, T Ascoli Bartoli, P De Nardo, A Baiocchini, F Del Nonno, P Narciso, E Nicastri
The diagnosis of sarcoidosis in a patient living with HIV infection is an uncommon event and a challenge for clinicians. Clinical manifestations are variable and fluctuating depending to adherence to ARV therapy and to the level of CD4 count. We analyze here one chronic case in which sarcoidosis appeared clinically two years after pulmonary tuberculosis. The course of the disease was influenced and prolonged by frequent interruptions of antiretroviral therapy. Moreover the diagnosis and the decision to treat have been delayed by the need of exclusion of other pathologies, principally tuberculosis reactivation/reinfection, other mycobacterial diseases, hematologic malignancies...
2016: Respiratory Medicine Case Reports
Colin M Venner, Immaculate Nankya, Fred Kyeyune, Korey Demers, Cynthia Kwok, Pai-Lien Chen, Sandra Rwambuya, Marshall Munjoma, Tsungai Chipato, Josaphat Byamugisha, Barbara Van Der Pol, Peter Mugyenyi, Robert A Salata, Charles S Morrison, Eric J Arts
INTRODUCTION: Long-term natural history cohorts of HIV-1 in the absence of treatment provide the best measure of virulence by different viral subtypes. METHODS: Newly HIV infected Ugandan and Zimbabwean women (N=303) were recruited and monitored for clinical, social, behavioral, immunological and viral parameters for 3 to 9.5years. RESULTS: Ugandan and Zimbabwean women infected with HIV-1 subtype C had 2.5-fold slower rates of CD4 T-cell declines and higher frequencies of long-term non-progression than those infected with subtype A or D (GEE model, P<0...
October 12, 2016: EBioMedicine
Alan Winston, Wolfgang Stöhr, Andrea Antinori, Helene Amieva, Philippe Perré, Stephane De Wit, Jacques Reynes, Mark Gompels, Antonella d'Arminio Monforte, Jose-Maria Gatell, Jesper Grarup, Anton Pozniak, Abdel Babiker, François Raffi, Laura Richert
BACKGROUND: Improvements in cognitive function are described after initiation of combination antiretroviral therapy (cART), with sparse data on differences between cART strategies. METHODS: We assessed changes in cognition, over 96 weeks, in therapy naïve HIV-positive adults randomised to darunavir/ritonavir (800/100mg once daily) with either raltegravir (400mg twice daily, Arm1) or tenofovir/emtricitabine (245/200mg once daily, Arm2). Seven cognitive tests were administered at baseline and week 96...
October 3, 2016: Journal of Acquired Immune Deficiency Syndromes: JAIDS
Bokai Cao, Xiangnan Kong, Jingyuan Zhang, Philip S Yu, Ann B Ragin
Investigating brain connectivity networks for neurological disorder identification has attracted great interest in recent years, most of which focus on the graph representation alone. However, in addition to brain networks derived from the neuroimaging data, hundreds of clinical, immunologic, serologic, and cognitive measures may also be documented for each subject. These measures compose multiple side views encoding a tremendous amount of supplemental information for diagnostic purposes, yet are often ignored...
December 2015: Brain Informatics
Lauren E Cain, Ellen C Caniglia, Andrew Phillips, Ashley Olson, Roberto Muga, Santiago Pérez-Hoyos, Sophie Abgrall, Dominique Costagliola, Rafael Rubio, Inma Jarrín, Heiner Bucher, Jan Fehr, Ard van Sighem, Peter Reiss, François Dabis, Marie-Anne Vandenhende, Roger Logan, James Robins, Jonathan A C Sterne, Amy Justice, Janet Tate, Giota Touloumi, Vasilis Paparizos, Anna Esteve, Jordi Casabona, Rémonie Seng, Laurence Meyer, Sophie Jose, Caroline Sabin, Miguel A Hernán
OBJECTIVE: To compare regimens consisting of either ritonavir-boosted atazanavir or efavirenz and a nucleoside reverse transcriptase inhibitor (NRTI) backbone with respect to clinical, immunologic, and virologic outcomes. DESIGN: Prospective studies of human immunodeficiency virus (HIV)-infected individuals in Europe and the United States included in the HIV-CAUSAL Collaboration. METHODS: HIV-positive, antiretroviral therapy-naive, and acquired immune deficiency syndrome (AIDS)-free individuals were followed from the time they started an atazanavir or efavirenz regimen...
October 2016: Medicine (Baltimore)
Thomas J Scriba, Anna K Coussens, Helen A Fletcher
Immunology is a central theme when it comes to tuberculosis (TB). The outcome of human infection with Mycobacterium tuberculosis is dependent on the ability of the immune response to clear or contain the infection.In cases where this fails, the bacterium replicates, disseminates within the host, and elicits a pathologic inflammatory response, and disease ensues. Clinical presentation of TB disease is remarkably heterogenous, and the disease phenotype is largely dependent on host immune status. Onward transmission of M...
October 2016: Microbiology Spectrum
Angela Berzi, Stefania Ordanini, Ben Joosten, Daria Trabattoni, Alessandra Cambi, Anna Bernardi, Mario Clerici
DC-SIGN, a C-type lectin mainly expressed by DCs, mediates antigen uptake and can induce specific immune responses, depending on the ligand involved. Owing to these properties, DC-SIGN is an attracting target for approaches aimed at tailoring the immune response towards specific immunologic outcomes. A multivalent DC-SIGN ligand (Polyman26), containing at its core a fluorescent "rod-like" spacer and able to inhibit DC-SIGN mediated HIV infection in nanomolar concentration, has been recently developed by our group...
October 13, 2016: Scientific Reports
D L Fink, L Hedley, R F Miller
Biologic therapies are injectable immunomodulatory agents directed against specific immune cell or chemical targets. They have transformed the lives of HIV-uninfected individuals with severe inflammatory conditions including psoriasis, rheumatoid arthritis, and ulcerative colitis. The perceived increased infection risk associated with these agents means that HIV-infected individuals have not been included in randomised control trials of these drugs. The literature for use of biologic therapies in HIV-infected populations is limited to case reports and case series...
October 12, 2016: International Journal of STD & AIDS
Nicholas J Maness
Decades of research, including the 1996 Nobel Prize in Medicine, confirm the evolutionary and immunological importance of CD8 T lymphocytes (TCD8+) that target peptides bound by the highly variable major histocompatibility complex class I (MHC-I) proteins. However, their perceived importance has varied dramatically over the past decade. Regardless, there remains myriad reasons to consider the diversity of MHC-I alleles and the TCD8+ that target them as enormously important in infectious disease research. Thus, understanding these molecules in the best animal models of human disease could be a necessity for optimizing the translational potential of these models...
October 11, 2016: Toxicologic Pathology
Rumi Minami, Soichiro Takahama, Yu Kaku, Masahiro Yamamoto
The CCR5 antagonist, maraviroc (MVC), is associated with an enhanced CD4+ T-cell response independent of virological suppression; however, its mechanism of action has not been elucidated. In this study, we confirmed the effect of MVC on CD4+ T-cell count recovery in immunological non-responders, and compared the conventional combination antiretroviral therapy (cART) with MVC-intensified cART. We also investigated the effect of MVC on interferon-γ (IFN-γ) production in CD4+ T cells in vitro and in vivo, and evaluated the relationship between the mRNA level of IFN-γ and the degree of CD4+ T-cell count recovery...
October 8, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
Thomas J Scriba, Anna K Coussens, Helen A Fletcher
Immunology is a central theme when it comes to tuberculosis (TB). The outcome of human infection with Mycobacterium tuberculosis is dependent on the ability of the immune response to clear or contain the infection.In cases where this fails, the bacterium replicates, disseminates within the host, and elicits a pathologic inflammatory response, and disease ensues. Clinical presentation of TB disease is remarkably heterogenous, and the disease phenotype is largely dependent on host immune status. Onward transmission of M...
August 2016: Microbiology Spectrum
L Ene, T D Marcotte, A Umlauf, C Grancea, A Temereanca, A Bharti, C L Achim, S Letendre, S M Ruta
We evaluated the impact of latent toxoplasmosis (LT) on neurocognitive (NC) and neurobehavioural functioning in young adults with and without chronic HIV infection, using a standardised NC test battery, self-reported Beck Depression Inventory, Frontal System Behavior Scale, MINI-International Neuropsychiatric Interview and risk-assessment battery. 194 young adults (median age 24years, 48.2% males) with chronic HIV infection (HIV+) since childhood and 51 HIV seronegative (HIV-) participants were included. HIV+ individuals had good current immunological status (median CD4: 479 cells/μl) despite a low CD4 nadir (median: 93 cells/μl)...
October 15, 2016: Journal of Neuroimmunology
Ann M Moormann, Jeffrey A Bailey
Burkitt lymphoma (BL) is >90% EBV-associated when this pediatric cancer is diagnosed in regions heavily burden by endemic Plasmodium falciparum malaria and thus has been geographically classified as endemic BL. The incidence of endemic BL is 10-fold higher compared to BL diagnosed in non-malarious regions of the world. The other forms of BL have been classified as sporadic BL which contain EBV in ∼30% of cases and immunodeficiency BL which occurs in HIV-infected adults with ∼40% of tumors containing EBV...
September 26, 2016: Current Opinion in Virology
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