• COVID-19 Detected in Gastrointestinal Tract and Feces

COVID-19 Detected in Gastrointestinal Tract and Feces

SARS-CoV-2  (COVID-19) and its receptor are present in the gastrointestinal tract, even after clearance of the virus from respiratory tract, researchers report in Gastroenterology. Infection with COVID-19 causes respiratory illnesses including severe respiratory syndrome (SARS), so it infects respiratory epithelial cells and spreads via respiratory tract. However, the viral target

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  • A New Pathway for Transmitting HBV DNA?

A New Pathway for Transmitting HBV DNA?

Extracellular vesicles carry HBV DNA as cargo that can be transmitted to other hepatocytes, researchers report in the March issue of Cellular and Molecular Gastroenterology and Hepatology. Their findings identify an antibody-neutralization–resistant route of HBV infection. Approximately 350 million people are chronically infected by HBV worldwide, and some of these

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Mapping HCV Infection in the Liver

Using single-cell laser capture and high-resolution analysis, researchers show that hepatitis C virus (HCV) infects hepatocytes in the human liver in nonrandom clusters, whereas expression of anti-viral molecules is scattered among hepatocytes. The findings are presented in the December issue of Gastroenterology. HCV predominantly infects hepatocytes, but most hepatocytes in

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New Ways to Study HCV, Genotypes 3 and 4

Researchers can now study replication of Hepatitis C virus genotypes 3 and 4 in cultured cells, described in 2 articles in the January issue of Gastroenterology. These new tools will improve our understanding of how they cause liver disease, and could lead to new treatments. HCV leads to chronic infection

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