The present study deals with the estimation of the anti-HIV activity (log1/C) of a large set of 107 HEPT analogues using molecular descriptors which are responsible for the anti-HIV activity. The study has been undertaken by three techniques MLR, ANN, and SVM. The MLR model fits the train set with R (2)=0.856 while in ANN and SVM with higher values of R (2) = 0.850, 0.874, respectively. SVM model shows improvement to estimate the anti-HIV activity of trained data, while in test set ANN have higher R (2) value than those of MLR and SVM techniques. R m (2) = metrics and ridge regression analysis indicated that the proposed four-variable model MATS5e, RDF080u, T(O⋯O), and MATS5m as correlating descriptors is the best for estimating the anti-HIV activity (log 1/C) present set of compounds.
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http://dx.doi.org/10.1155/2013/795621 | DOI Listing |
AIDS Res Ther
December 2024
Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Malattie Infettive, Largo Agostino Gemelli 8, Rome, 00168, Italia.
Background: Oxidative stress (OS) is the imbalance between oxidant and antioxidant molecules, in favour of oxidants, that has been associated with an increased risk of morbidity and mortality in ART-treated people living with HIV (PLWH). We aimed to assess factors associated with OS in virologically suppressed PLWH on long-term modern ART.
Method: In this cross-sectional study we evaluated OS by measuring both the levels of derivatives-reactive oxygen metabolites (d-ROMs) and the biological antioxidant potential (BAP).
Curr Issues Mol Biol
November 2024
Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, China.
The screening of novel antiviral agents from marine microorganisms is an important strategy for new drug development. Our previous study found that polyether K-41A and its analog K-41Am, derived from a marine Streptomyces strain, exhibit anti-HIV activity by suppressing the activities of HIV-1 reverse transcriptase (RT) and its integrase (IN). Among the K-41A derivatives, two disaccharide-bearing polyethers-K-41B and K-41Bm-were found to have potent anti-HIV-1 activity in vitro.
View Article and Find Full Text PDFAIDS Res Ther
December 2024
Department of Tuberculosis, AIDS and STD Control and Prevention, Shanghai Pudong New Area Center for Disease Control and Prevention, Shanghai, 200136, China.
To explore differences among the elderly people (aged over 50 years old) living with HIV (PLWH) who are receiving antiretroviral therapy (ART), we collected and analyzed data using cross-sectional research methods. Among 520 elderly PLWH on ART, those over 60 years old, compared to those aged 50-60, had lower levels of education, more retirees in occupation distribution, a lower rate of active consultation, a higher proportion of heterosexual transmission, and more complications. Additionally, this study demonstrated a greater incidence of severe disease symptoms and a higher rate of ART failure.
View Article and Find Full Text PDFFront Pharmacol
December 2024
School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, China.
Natural products isolated from have attracted considerable attention from the chemical community due to their unique structures and promising anti-HIV activities. Recent progresses in the isolation and bioactivity studies for these natural molecules were summarized comprehensively. From the 23 previously uncharacterized compounds isolated from the plant , litseaverticillol B demonstrated the most potent anti-HIV activity , with IC ranging from 2 to 3 μg/mL.
View Article and Find Full Text PDFCommun Biol
December 2024
Institut national de la recherche scientifique (INRS)-Centre Armand-Frappier Santé Biotechnologie, 531 boulevard des Prairies, H7V 1M7, Laval, QC, Canada.
We have shown that virus-specific CD4 and CD8 memory T cells (TM) induce autophagy after T cell receptor (TCR) engagement to provide free glutamine and fatty acids, including in people living with HIV-1 (PLWH). These nutrients fuel mitochondrial ATP generation through glutaminolysis and fatty acid oxidation (FAO) pathways, to fulfill the bioenergetic demands for optimal IL-21 and cytotoxic molecule production in CD4 and CD8 cells, respectively. Here, we expand our knowledge on how the metabolic events that occur in the mitochondria of virus-specific TM down-stream of the autophagy are regulated.
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