Human adenovirus (HAdV) has a worldwide distribution and remains a major pathogen that leads to infections of the respiratory tract. No specific treatments or vaccines are yet available for HAdV infection. , an edible seaweed, has attracted a lot of attention for its various bioactivities. has been reported to exhibit antiviral activity. However, research studies about its anti-HAdV activity are few. In this research, we found that had low cytotoxicity and possessed anti-human adenovirus type 7 (HAdV7) activity , and the most effective ingredient was alginate. The time of addition assay demonstrated inhibitory effects that were observed in all life stages of the virus. In addition, we observed that the antiviral activity of alginate against HAdV7 infection might be closely related to the endoplasmic reticulum stress (ERS) pathway. Taken together, these results suggest that extracts have potential application in the prevention and treatment of HAdV infection.
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http://dx.doi.org/10.3389/fcimb.2022.860559 | DOI Listing |
Viruses
November 2024
Department of Microbiology, University of Washington School of Medicine, Seattle, WA 98109, USA.
Certain species D human adenoviruses (HAdV-D19, -D37, and -D64) are causative agents of epidemic keratoconjunctivitis. HAdV-D37 has previously been shown to bind CD46 (membrane cofactor protein) and sialic acid as adhesion receptors. HAdV-D64 is genetically highly similar to HAdV-D37, with an identical fiber protein sequence, but differs substantially in its penton base and hexon proteins, two other major capsid components, due to genetic recombination.
View Article and Find Full Text PDFPathogens
December 2024
Department of Infectious Diseases, University Hospital of Split, Spinciceva 1, 21000 Split, Croatia.
Human adenoviruses (HAdVs) are known to be highly contagious pathogens. They are commonly associated with mild respiratory infections in young children but can also cause severe life-threatening infections. Human adenovirus types 4 and 7 have frequently been reported to cause pneumonia in immunocompetent youths and adults.
View Article and Find Full Text PDFFood Environ Virol
January 2025
School of Environmental and Natural Sciences, Bangor University, Bangor, Gwynedd, LL57 2UW, UK.
Nat Commun
December 2024
Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institutes of Respiratory Diseases, School of Medicine, Shanghai Jiao Tong University and Shanghai Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai, China.
Human adenovirus (HAdV) is a widely spread respiratory pathogen that can cause infections in multiple tissues and organs. Previous studies have established an association between HAdV species B (HAdV-B) infection and severe community-acquired pneumonia (SCAP). However, the connection between SCAP-associated HAdV-B infection and host factor expression profile in patients has not been systematically investigated.
View Article and Find Full Text PDFJ Med Virol
December 2024
Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, People's Republic of China.
Human adenovirus (HAdV) is an important pathogen causing pediatric acute respiratory illness (ARI) before COVID-19 pandemic. Since January 2023, China has reported ARI outbreaks attributed to Mycoplasma pneumoniae and other respiratory viruses. In this study, a total of 276 737 pediatric patients with ARI were enrolled from January 2023 to April 2024.
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