Drug design, antiretroviral therapy (ART), and drug resistance studies have focused almost exclusively on human immunodeficiency virus type 1 (HIV-1), resulting in limited information for patients infected with HIV-2 and for those dually infected with HIV-1 and HIV-2. In this study, 20 patients, 12 infected with HIV-2 and 8 dually infected with HIV-1 and HIV-2, all treated with zidovudine (ZDV), lamivudine (3TC), and lopinavir-ritonavir (LPV/r), were followed up longitudinally for about 3 years. For 19/20 patients, viral loads were reduced to undetectable levels; the patient whose viral load remained detectable reported adverse effects associated with LPV/r that had caused him to stop taking all the drugs. HIV-2 strains containing mutations in both the protease and the reverse transcriptase gene that may confer drug resistance were observed in two patients with viral rebound, as early as 130 days (4.3 months) after the initiation of therapy. We conclude that the combination of ZDV, 3TC, and LPV/r is able to provide efficient and durable suppression of HIV-1 and HIV-2 for as long as 3 years in HIV-2-infected and dually infected patients. However, the emergence of HIV-1 and HIV-2 strains containing drug-resistant mutations can compromise the efficacy of this highly active ART.
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http://dx.doi.org/10.1128/JCM.01654-08 | DOI Listing |
Biomolecules
December 2024
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russia.
The review examines recent advances in the design and synthesis of 1,3-selenazole derivatives since 2000. Various synthetic approaches to 1,3-selenazoles and reaction conditions are discussed. The beneficial properties of 1,3-selenazoles, especially their biological activity, are emphasized.
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December 2024
Infectious Diseases, Hospital Garcia de Orta, Lisbon, PRT.
Extra-cavitary primary effusion lymphoma (PEL), often associated with human herpes virus 8 (HHV8) infection, represents a rare and aggressive form of non-Hodgkin lymphoma, which is predominantly found in individuals with severe immunosuppression. As an acquired immunodeficiency syndrome (AIDS)-associated lymphoma, PEL typically manifests in the context of advanced human immunodeficiency virus (HIV) infection, requiring tailored therapeutic approaches to manage both the lymphoma and underlying immunodeficiency. A 53-year-old male patient from Cape Verde presented with a three-day history of fever, night sweats, right iliac fossa pain, hematochezia, and an unintentional weight loss of five kilograms over the previous two months.
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January 2025
Viroscience Department, Erasmus MC, Rotterdam, The Netherlands.
Background: The treatment management of human immunodeficiency virus (HIV)-2 infection presents greater challenges compared to HIV-1 infection, primarily because of inherent resistance against non-nucleoside reverse transcriptase inhibitors. Integrase strand transfer inhibitors, particularly dolutegravir, have improved treatment outcomes for people with HIV-2. Lenacapavir, a novel and potent antiretroviral capsid inhibitor, offers additional therapeutic options.
View Article and Find Full Text PDFBioorg Chem
January 2025
Laboratory of Molecular Chemistry, Materials and Environment (LCM2E), Department of Chemistry, Multidisciplinary Faculty of Nador, University Mohamed I, 60700 Nador, Morocco. Electronic address:
Given the ease of synthetic accessibility and the promising biological profile demonstrated by both imidazo[1,2-a]pyridine and Chalcone derivatives, a series of Chalcone-based imidazo[1,2-a]pyridine derivatives were synthesized and characterized using H NMR, C NMR, Mass Spectrometry and FTIR techniques. Density functional theory (DFT) was employed to investigate the structural and electronic properties, providing insights into potential reactive sites. The synthesized compounds were evaluated in vitro for their antiviral properties against human immunodeficiency virus type-1 (HIV-1) and human immunodeficiency virus type-2 (HIV-2) in MT-4 cells.
View Article and Find Full Text PDFClin Infect Dis
December 2024
Université Paris Cité, Inserm, IAME, F-75018, Paris, France.
Lenacapavir is the first capsid inhibitor, its use is currently approved for multidrug resistant HIV-1 infection. We report that, despite an initial efficacy of a LEN-containing regimen in patients with multi-drug resistant HIV-2 viruses, virological suppression was not achieved after a year and most patients selected capsid drug-resistance associated mutations.
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