Results 71 to 80 of about 52,284 (201)

Fitness Impaired Drug Resistant HIV-1 Is Not Compromised in Cell-to-Cell Transmission or Establishment of and Reactivation from Latency

Viruses, 2014
Both the presence of latently infected cells and cell-to-cell viral transmission are means whereby HIV can partially evade the inhibitory activities of antiretroviral drugs.
Sophie M. Bastarache, Thibault Mesplède, Daniel A. Donahue, Richard D. Sloan, Mark A. Wainberg   +4 more
doaj   +1 more source

Structural Comparison of Diverse HIV-1 Subtypes using Molecular Modelling and Docking Analyses of Integrase Inhibitors

Viruses, 2020
The process of viral integration into the host genome is an essential step of the HIV-1 life cycle. The viral integrase (IN) enzyme catalyzes integration. IN is an ideal therapeutic enzyme targeted by several drugs; raltegravir (RAL), elvitegravir (EVG),
Darren Isaacs, Sello Given Mikasi, Adetayo Emmanuel Obasa, George Mondinde Ikomey, Sergey Shityakov, Ruben Cloete, Graeme Brendon Jacobs   +6 more
doaj   +1 more source

Evolutionary and Epidemiological Characterization of Multidrug‐Resistant Escherichia coli Isolated From Pangolins in China

Integrative Zoology, EarlyView.
ABSTRACT Malayan pangolin populations have fallen to a critically endangered level, and illegal trafficking of wild pangolins is a global problem. Little is known about antimicrobial‐resistant bacteria (MDRB) harbored by pangolins, although pangolins are frequently consumed as food or used in traditional medicine. In this study, we report for the first
Yawen Wang, Xue Wang, Jianan Zhao, Jun Zeng, Shijia Hu, Fang Ji, Guoying Dong, Hongxuan He, Chengmin Wang   +8 more
wiley   +1 more source

Structural Insights on Retroviral DNA Integration: Learning from Foamy Viruses

Viruses, 2019
Foamy viruses (FV) are retroviruses belonging to the Spumaretrovirinae subfamily. They are non-pathogenic viruses endemic in several mammalian hosts like non-human primates, felines, bovines, and equines.
Ga-Eun Lee, Eric Mauro, Vincent Parissi, Cha-Gyun Shin, Paul Lesbats   +4 more
doaj   +1 more source

Spatial Patterns and Associated Factors of Intestinal Antibiotic Resistance Genes in Farmed Bullfrogs From Selected Farms Across Major Production Regions in China

Integrative Zoology, EarlyView.
Across selected bullfrog farms in major Chinese production regions, 106 intestinal ARG subtypes were detected, with tetracycline and sulfonamide resistance genes predominating and clear farm‐level variation. High‐risk ARGs, including ermB, floR, and qnrA, were associated with heavy metals, MGEs, and opportunistic pathogens. These findings highlight the
Yang Xu, Rui Chen, Qiang Wei, Zhiming Liu, Jianguo Xiang, Deliang Li, Junhua Li, Xinhua Liu   +7 more
wiley   +1 more source

Hypogonadism in Cisgender Men Living With HIV: Prevalence, Clinical and Metabolic Features

Andrology, EarlyView.
ABSTRACT Background Hypogonadism is frequently observed in men living with human immunodeficiency virus (HIV), although its prevalence, etiology, and predictors remain incompletely understood. Objective To evaluate the prevalence of hypogonadism and its association with metabolic factors in men living with HIV (MLWH), on stable antiretroviral therapy ...
Felipe Augusto Azevedo Leao, Gabriel Cabreira Nunes, Manuela Almeida Ribeiro, Luiza Costa da Fonseca, Aline Cristina Miranda Marinho Costa, Mateus Rodrigues Westin, Unai Tupinambas, Milena Maria Moreira Guimaraes, Leticia Ferreira Gontijo Silveira   +8 more
wiley   +1 more source

HIV-1 integrase tetramers are the antiviral target of pyridine-based allosteric integrase inhibitors

eLife, 2019
Allosteric HIV-1 integrase (IN) inhibitors (ALLINIs) are a promising new class of antiretroviral agents that disrupt proper viral maturation by inducing hyper-multimerization of IN.
Pratibha C Koneru, Ashwanth C Francis, Nanjie Deng, Stephanie V Rebensburg, Ashley C Hoyte, Jared Lindenberger, Daniel Adu-Ampratwum, Ross C Larue, Michael F Wempe, Alan N Engelman, Dmitry Lyumkis, James R Fuchs, Ronald M Levy, Gregory B Melikyan, Mamuka Kvaratskhelia   +14 more
doaj   +1 more source

Effects of HIV type-1 immune selection on susceptability to integrase inhibitor resistance [PDF]

, 2009
Background: All site-specific interactions between HIV type-1 (HIV-1) subtype, human leukocyte antigen (HLA)-associated immune selection and integrase inhibitor resistance are not completely understood.
Chopra, A., Günthard, Huldrych F, John, Mina, James, Ian, Furrer, H, Ahmad, Imran F, Ahmad, I.F., Chopra, A, Rauch, A., Ahmad, I F, Rauch, A, John, M., James, I, Furrer, Hansjakob, Tschochner, M., Furrer, H., Günthard, H., Chopra, Abha, Rauch, Andri, John, M, Mallal, Simon, Maiden, T.M., Günthard, H F, Tschochner, Monika, Mallal, S, Tschochner, M, James, I., Maiden, Tanya M, Mallal, S., Maiden, T M   +29 more
core   +1 more source

The E‐cadherin‐Wnt‐mir‐994 Axis Repurposes a Cadherin Switch for Niche Robustness and Germline Stem Cell Maintenance

Cell Proliferation, EarlyView.
In the Drosophila ovarian niche, an E‐cadherin‐to‐N‐cadherin switch, mediated by Wnt‐mir‐994 signalling, is repurposed to ensure niche resilience. This compensatory mechanism maintains niche integrity and stem cell support upon E‐cadherin loss, revealing a robustness circuit.
Renjun Tu, Hiu Laam Yau, Runzhi Deng, Sarah E. Webb, Shiyuan Chen, Jianquan Ni, Ting Xie   +6 more
wiley   +1 more source

Insights into the Functions of a Prophage Recombination Directionality Factor

Viruses, 2012
Recombination directionality factors (RDFs), or excisionases, are essential players of prophage excisive recombination. Despite the essentially catalytic role of the integrase in both integrative and excisive recombination, RDFs are required to direct ...
Mireille Ansaldi, Vincent Méjean, Gaël Panis, Nathalie Franche   +3 more
doaj   +1 more source