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Eur J Med Chem 2021 Mar 31;218:113395. Epub 2021 Mar 31.

Key Laboratory of Computational Chemistry Based Natural Antitumor Drug Research & Development, Liaoning Province, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China. Electronic address:

A series of flavonoid-triazolyl hybrids were synthesized and evaluated as novel inhibitors of hepatitis C virus (HCV). The results of anti-HCV activity assays showed that most of the synthesized derivatives at a concentration of 100 μg/mL inhibited the generation of progeny virus. Among these derivatives, 10m and 10r exhibited the most potent anti-HCV activity and inhibited the production of HCV in a dose-dependent manner. Read More

Curr Opin Virol 2021 Apr 7;48:23-29. Epub 2021 Apr 7.

Institute of Medical Virology, University of Zurich, 8057 Zurich, Switzerland. Electronic address:

Influenza A viruses (IAV) are a major burden for human health and thus the topic of intense research efforts. The entry of IAV into host cells is of particular interest as early infection steps are the ideal target for intervention strategies. Here, we review recent key findings in the field of IAV entry. Read More

Environ Toxicol Pharmacol 2021 Apr 7:103657. Epub 2021 Apr 7.

Gazi University, Faculty of Medicine, Department of General Surgery, Ankara, Turkey.

Diesel exhaust particles (DEP) are the major components of atmospheric particulate matter (PM) and chronic exposure is recognized to enhance respiratory system complications. Although the spread of SARS-CoV-2 was found to be associated with the PMs, the mechanism by which exposure to DEP increases the risk of SARS-CoV-2 infection is still under discussion. However, diesel fine PM (dPMs) elevate the probability of SARS-CoV-2 infection, as it coincides with the increase in the number of ACE2 receptors. Read More

Environ Toxicol Pharmacol 2021 Apr 7:103656. Epub 2021 Apr 7.

Department of Neurobiology and Behavior, University of California Irvine, Irvine, CA, 92697, USA. Electronic address:

Evidence in humans suggests a correlation between nicotine smoking and severe respiratory symptoms with COVID-19 infection. In lung tissue, angiotensin-converting enzyme 2 (ACE2) appears to mechanistically underlie viral entry. Here, we investigated whether e-cigarette vapor inhalation alters ACE2 and nicotinic acetylcholine receptor (nAChR) expression in male and female mice. Read More

Clin Microbiol Infect 2021 Apr 7. Epub 2021 Apr 7.

Unité d'Epidémiologie des Maladies Émergentes, Institut Pasteur, Paris, France. Electronic address:

Objectives: A massive scale-up of testing and treatment is indicated to globally eliminate hepatitis B virus (HBV) infection. However, access to a polymerase chain reaction (PCR), a key test to quantify HBV DNA levels and determine treatment eligibility, is limited in resource-limited countries. We developed and evaluated loop-mediated isothermal amplification (LAMP) assay to diagnose clinically important HBV DNA thresholds defined by WHO (≥20,000 and ≥200,000 IU/mL). Read More