Results 111 to 120 of about 206,533 (287)

High prevalence and incidence of HIV-1 in a counseling and testing center in the city of Itajaí, Brazil

Brazilian Journal of Infectious Diseases, 2015
Itajaí is a port city in southern Brazil with one of the highest incidence and mortality rates from AIDS in the country. The prevalence and incidence of HIV infection were investigated in 1085 of 3196 new HIV-1 infection cases evaluated in the counseling
Gorki Grinberg, Leila Bertoni Giron, Rosalie Kupka Knoll, Juliana Galinskas, Michelle Camargo, Muhammad Shoaib Arif, Sadia Samer, Luiz Mario Ramos Janini, Maria Cecilia Araripe Sucupira, Ricardo Sobhie Diaz   +9 more
doaj   +1 more source

KDM4A Erases the H3R17me2a Mark, Facilitating Chromosome Condensation

Advanced Science, EarlyView.
This study reveals a reversible histone modification switch governing chromosome condensation during mitosis. PKCα‐activated KDM4A removes H3R17me2a, permitting Suv39h1‐driven H3K9me3 deposition. This epigenetic transition recruits the chromosomal passenger complex and triggers Aurora B‐dependent H3S10 phosphorylation, coordinating chromatin remodeling
Yena Cho, Jee Won Hwang, Gyu Hwan Hyun, Sangkyu Lee, Dae‐Geun Song, Su‐Nam Kim, Yong Kee Kim   +6 more
wiley   +1 more source

Decoding the Integrated Stress Response of Pancreatic Cancer: Identifying a Serine‐dependent Tumor Subset Under Metabolic Relationships With CAFs.

Advanced Science, EarlyView.
Researchers identified a pancreatic cancer subset with low global protein synthesis but heightened translation of stress‐response genes like ATF4, rendering cells resistant to chemotherapy and apoptosis. These tumors depend on serine and cysteine from surrounding cancer‐associated fibroblasts (CAFs), which shift to produce serine by curbing collagen ...
Sauyeun Shin, Mehdi Liauzun, Jacobo Solorzano, Morgane Le Bras, Christine Jean, Benjamin Fourneaux, Margaux Dore, Lea Fevrier, Ismahane Belhabib, Alexia Brunel, Cindy Neuzillet, Marion Larroque, Carine Joffre, Stephane Rocchi, Nicolas Fraunhoffer, Aurelie Perraud, Muriel Mathonnet, Vera Pancaldi, Laetitia Linares, Juan Iovanna, Nelson Dusetti, Ola Larsson, Remy Nicolle, Stephane Pyronnet, Corinne Bousquet, Yvan Martineau   +25 more
wiley   +1 more source

Synthesis of Quinolin-2-one Alkaloid Derivatives and Their Inhibitory Activities against HIV-1 Reverse Transcriptase

Molecules, 2011
Based on an established common pharmacophore of HIV-1 non-nucleoside reverse transcriptase inhibitors (NNTTIs), a series of quinolin-2-one derivatives were synthesized and assayed for their in vitro activities against HIV-1 reverse transcriptase (RT) for
Pi Cheng, Qiong Gu, Wei Liu, Jian-Feng Zou, Yang-Yong Ou, Zhong-Yong Luo, Jian-Guo Zeng   +6 more
doaj   +1 more source

Natural Negative Feedback Loops Confer Indica‐Japonica Differentiation for Grain Size Homeostasis in Rice

Advanced Science, EarlyView.
This study reveals the genetic and molecular mechanisms controlling grain size homeostasis through fine‐tuning OsGRX8 self‐expression by two natural negative feedback loops functioning in redox‐dependent or ‐independent manners and identifies two self‐regulatory haplotypes (SRHs) for the subspecies differentiation in rice.
Xingxing Li, Meng‐en Wu, Ziqi Qiao, Junkui Huang, Juncheng Zhang, Yang Ding, Junqing Zhu, Jingyue Xu, Yuxin Huang, Wei Li, Xiaomin Su, Yue Ding, Jianwei Zhang, Yibo Li   +13 more
wiley   +1 more source

Production of positive controls for calcivirus-specific PCR using recombinant baculiovirus technology [PDF]

, 1997
Recent advances in our knowledge of the genetic structure of human caliciviruses (HuCVs) and small round-structured viruses (SRSVs) have led to the development of polymerase chain reaction (PCR)-based molecular tests specific for these viruses.
Butcher, S.A., Gould, E.A.
core  

CRP Deficiency Rescues Periodontitis‐Induced Hippocampal Neurogenesis Impairment by Suppressing OPC‐Derived BMP4 Signaling in Rats

Advanced Science, EarlyView.
Chronic periodontitis elevates circulating CRP, which enters the hippocampus to upregulate BMP4 in oligodendrocyte precursor cells (OPCs), thereby impairing neurogenesis and inducing anxiety/depression‐like behaviors in rats. Counteracting this pathway, CRP deficiency helps confer functional resilience to OPCs.
Lingjie Li, Ping Deng, Siyu Hou, Xianbo Xia, Wei Zhao, Xingyu Zhu, Yang Zhang, Chao Wang, Ling Xu, Jinlin Song   +9 more
wiley   +1 more source

LINE-1 retrotransposon activation drives age-associated inflammation via cytoplasmic cDNA-STING/type I interferon signalling: therapeutic potential of reverse transcriptase inhibition

Contemporary Oncology
Retrotransposable elements are harmful at several levels, and host surveillance systems fail to consider all these elements in severe effects. The key role of retrotransposon in aging and age-associated diseases remains unclear. We summarise whether LINE-
Arshad Mehmood, Yue Zhu Xue, Habab Merghani Yassin, Mohammad Zubair, Syed Adnan Rahmat, Aftab Ahmad   +5 more
doaj   +1 more source

Highly active antiretroviral therapies are effective against HIV-1 cell-to-cell transmission.

PLoS Pathogens, 2014
HIV-1 cell-to-cell transmission allows for 2-3 orders of magnitude more efficient viral spread than cell-free dissemination. The high local multiplicity of infection (MOI) observed at cell-cell contact sites may lower the efficacy of antiretroviral ...
Luis M Agosto, Peng Zhong, James Munro, Walther Mothes   +3 more
doaj   +1 more source

Transposable Elements, Inflammation, and Neurological Disease. [PDF]

, 2019
Transposable Elements (TE) are mobile DNA elements that can replicate and insert themselves into different locations within the host genome. Their propensity to self-propagate has a myriad of consequences and yet their biological significance is not well-
Macia, Angela, Muotri, Alysson R, Saleh, Aurian   +2 more
core