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Influenza A virus NS2 protein acts on vRNA-resident polymerase to drive the transcription to replication switch.
Nucleic Acids Res
January 2025
CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
The heterotrimeric RNA-dependent RNA polymerase (RdRp) of influenza A virus catalyzes viral RNA transcription (vRNA→mRNA) and replication (vRNA→cRNA→vRNA) by adopting different conformations. A switch from transcription to replication occurs at a relatively late stage of infection. We recently reported that the viral NS2 protein, expressed at later stages from a spliced transcript of the NS segment messenger RNA (mRNA), inhibits transcription, promotes replication and plays a key role in the transcription-to-replication switch.
View Article and Find Full Text PDFNorovirus-associated diarrhea and asymptomatic infection in children aged under 4 years: a community-cohort study in the Philippines.
IJID Reg
March 2025
Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Objectives: This study aimed to estimate the incidence of norovirus (NoV)-associated diarrhea and asymptomatic infections in children under 4 years of age and identify the genotypes of multiple NoV infections.
Methods: A community-based cohort study was conducted in Tarlac, Philippines. Children aged 0-2 years were followed up for 2 years.
Lignin-Based Mucus-Mimicking Antiviral Hydrogels with Enzyme Stability and Tunable Porosity.
ACS Appl Mater Interfaces
January 2025
Institute for Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany.
Mucus is a complex hydrogel that acts as a defensive and protective barrier in various parts of the human body. The rise in the level of viral infections has underscored the importance of advancing research into mucus-mimicking hydrogels for the efficient design of antiviral agents. Herein, we demonstrate the gram-scale synthesis of biocompatible, lignin-based virus-binding inhibitors that reduce waste and ensure long-term availability.
View Article and Find Full Text PDFDeciphering the therapeutic effects of Xiyanping injection: insights into pulmonary and gut microbiome modulation, SerpinB2/PAI-2 targeting, and alleviation of influenza a virus-induced lung injury.
Virol J
January 2025
Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010, China.
Infection with Influenza A virus (IAV) induces severe inflammatory responses and lung injury, contributing significantly to mortality and morbidity rates. Alterations in the microbial composition of the lungs and intestinal tract resulting from infection could influence disease progression and treatment outcomes. Xiyanping (XYP) injection has demonstrated efficacy in clinical treatment across various viral infections.
View Article and Find Full Text PDFDifferences in clinical characteristics between coronavirus disease 2019 (COVID-19) and influenza: a systematic review and meta-analysis.
NPJ Prim Care Respir Med
January 2025
Department of Orthopaedics, The Second Hospital of Jilin University, Changchun, Jilin Province, China.
The coronavirus disease 2019 (COVID-19) epidemic has brought major challenges to the global health system, and influenza is also a problem that cannot be ignored. We aimed to explore and compare the clinical characteristics of COVID-19 and influenza to deepen the understanding of these two diseases and provide some guidance for clinicians to make differential diagnoses. We searched PubMed, Embase and Web of Science for articles and performed a meta-analysis using Stata 14.
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