نتایج جستجو برای: abacavir

تعداد نتایج: 949  

2017
Ruth L. Goodall David T. Dunn Peter Nkurunziza Lincoln Mugarura Theresa Pattery Paula Munderi Cissy Kityo Charles Gilks Pontiano Kaleebu Deenan Pillay Ravindra K. Gupta

Background Lack of viral load monitoring of ART is known to be associated with slower switch from a failing regimen and thereby higher prevalence of MDR HIV-1. Many countries have continued to use thymidine analogue drugs despite recommendations to use tenofovir in combination with a cytosine analogue and NNRTI as first-line ART. The effect of accumulated thymidine analogue mutations (TAMs) on ...

Journal: :Immunity 2008
Diana Chessman Lyudmila Kostenko Tessa Lethborg Anthony W Purcell Nicholas A Williamson Zhenjun Chen Lars Kjer-Nielsen Nicole A Mifsud Brian D Tait Rhonda Holdsworth Coral Ann Almeida David Nolan Whitney A Macdonald Julia K Archbold Anthony D Kellerher Debbie Marriott Simon Mallal Mandvi Bharadwaj Jamie Rossjohn James McCluskey

The basis for strong immunogenetic associations between particular human leukocyte antigen (HLA) class I allotypes and inflammatory conditions like Behçet's disease (HLA-B51) and ankylosing spondylitis (HLA-B27) remain mysterious. Recently, however, even stronger HLA associations are reported in drug hypersensitivities to the reverse-transcriptase inhibitor abacavir (HLA-B57), the gout prophyla...

Journal: :The Journal of infectious diseases 2006
Alessandro Cozzi-Lepri Andrea De Luca Andrew N Phillips Marco Bongiovanni Simona Di Giambenedetto Maurizio Mena Maria Cristina Moioli Massimo Arlotti Laura Sighinolfi Pasquale Narciso Miriam Lichtner Roberto Cauda Antonella d'Arminio Monforte

BACKGROUND Our objective was to compare the rate of viral rebound and therapy failure in patients receiving abacavir or efavirenz as the third drug (in addition to 2 non-abacavir nucleosides) in combination antiretroviral therapy (cART) and to compare the rate of metabolic alteration associated with these regimens. METHODS We conducted a multicohort prospective observational study of human im...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
David A Ostrov Barry J Grant Yuri A Pompeu John Sidney Mikkel Harndahl Scott Southwood Carla Oseroff Shun Lu Jean Jakoncic Cesar Augusto F de Oliveira Lun Yang Hu Mei Leming Shi Jeffrey Shabanowitz A Michelle English Amanda Wriston Andrew Lucas Elizabeth Phillips Simon Mallal Howard M Grey Alessandro Sette Donald F Hunt Soren Buus Bjoern Peters

Idiosyncratic adverse drug reactions are unpredictable, dose-independent and potentially life threatening; this makes them a major factor contributing to the cost and uncertainty of drug development. Clinical data suggest that many such reactions involve immune mechanisms, and genetic association studies have identified strong linkages between drug hypersensitivity reactions to several drugs an...

2011
Thomas A Rasmussen Martin Tolstrup Jesper Melchjorsen Christian A Frederiksen Ulla S Nielsen Bente L Langdahl Lars Østergaard Alex L Laursen

BACKGROUND Our objective was to evaluate and compare the effect of abacavir on levels of biomarkers associated with cardiovascular risk. METHODS In an open-label randomized trial, HIV-infected patients were randomized 1:1 to switch from zidovudine/lamivudine to abacavir/lamivudine or tenofovir/emtricitabine. In the present analysis, we measured levels of interleukin-6 (IL-6), high-sensitivity...

2017
Kunchok Dorjee Sanjiv M Baxi Arthur L Reingold Alan Hubbard

BACKGROUND There is ongoing controversy regarding abacavir use in the treatment of HIV infection and the risk of subsequent development of cardiovascular disease. It is unclear how the risk varies as exposure accumulates. METHODS Using an administrative health-plan dataset, risk of cardiovascular disease events (CVDe), defined as the first episode of an acute myocardial infarction or a corona...

Journal: :Enfermedades infecciosas y microbiologia clinica 2010
Diana Nieves Calatrava Oscar de la Calle-Martín José A Iribarren-Loyarte Antonio Rivero-Román Laura García-Bujalance Isabel Pérez-Escolano Max Brosa-Riestra

INTRODUCTION Approximately 4% to 8% of patients with HIV-1 treated with abacavir present a hypersensitivity reaction (HSR). Various studies have shown a direct association between human leukocyte antigen (HLA)-B*5701 and HSR to abacavir. The objective of this study was to analyze whether systematic HLA-B*5701 testing to prevent HSR in patients treated with abacavir is a cost-effective option fo...

2012
Pallavi Vukkum Girish R. Deshpande J. Moses Babu R. Muralikrishna Pavani Jagu

A novel, stability-indicating UHPLC method was developed for the quantitative determination of Abacavir sulfate, its related substances, and forced degradation impurities in bulk drugs. The chromatographic separation was achieved on a Waters Acquity BEH C(8), 50 mm × 2.1 mm, 1.7 μm particle size column with a mobile containing a gradient mixture of solution A (0.10 % v/v o-phosphoric acid in wa...

2011
Sharad Pawar

The present study deals with the development of an accurate, economical and reproducible UV spectrophotometric method for the simultaneous estimation of abacavir, lamivudine and zidovudine in pure bulk drug and in combined tablet dosage form. The stock solutions were prepared in acetonitrile followed by the further required dilutions with distilled water. The λ max for abacavir, lamivudine, and...

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