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Glycans "lock and load" the SARS-CoV-2 spike protein for infection

A new study by scientists from the University of California San Diego, USA and Maynooth University, Ireland and published on the preprint server bioRxiv* in June 2020 reports preliminary results showing that the spike protein of the SARS-CoV-2, as well as its glycan coat, has “hitherto unseen functional and structural” properties. These may be useful in designing novel therapeutics to target this molecule.

14 Jun 2020

An entire trimeric S-protein of SARS-CoV-2 is necessary for protective immune response

Researchers from Seattle Children's Research Institute and the University of Washington described a high-throughput and rapid technique to quantify circulating levels of functional antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), suggesting that the entire viral spike protein should be used to characterize the immune response. Their paper is currently available on the medRxiv* preprint server.

14 Jun 2020

Early respiratory distress syndrome caused by SARS-CoV-2 in a newborn

A recent case report from the researchers at the University of São Paulo, published in the journal CLINICS, shows how newborns can also be infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and develop serious symptoms, even though the most likely route of infection in such cases is still not completely clear.

14 Jun 2020

Cannabis plant may harbor SARS-CoV-2 for at least a week

Researchers at the Medicinal Genomics Corporation have warned that cannabis flowers exposed to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may harbor the virus for at least seven days.

14 Jun 2020

NIAID and Moderna scientists describe SARS-CoV-2 vaccine development

Researchers at the National Institute of Allergy and Infectious Diseases and Moderna Inc., have described the potent neutralizing effects of a candidate vaccine for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that is currently being tested in a phase II trial.

14 Jun 2020

Progression and severity of COVID-19 highly dependant on cytokine changes

A new review paper by the researchers from Spain, published in the journal Cytokine & Growth Factor Reviews, demonstrates how changes in the levels of cytokines and other biomolecules are associated with the presence and more serious prognosis of coronavirus disease (COVID-19).

11 Jun 2020

Asymptomatic spread of SARS-CoV-2 appears to be rare, says WHO

The coronavirus disease (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has taken a toll on many countries, infecting more than 7.35 million people. Previously, scientists claimed that the virus could be transmitted via asymptomatic carriers, or those not showing symptoms of the disease.

10 Jun 2020

Unique antiviral action of cholesterol 25-hydroxylase against SARS-CoV-2

A new study by U.S. and Chinese researchers, currently available on the bioRxiv* preprint server, demonstrates how cholesterol 25-hydroxylase and its enzymatic product 25-hydroxycholesterol can inhibit membrane fus

10 Jun 2020

Blood type plays role in SARS-CoV-2 infection

A new meta-analysis from Iran, available on the medRxiv preprint server, showed that the blood group A could be considered a partial risk factor for infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), whereas the blood group O may act as a protective factor; conversely, no significant associations were observed between specific blood groups and coronavirus disease (COVID-19) mortality.

10 Jun 2020

Specific immune signature identified in COVID-19 patients

Researchers at King’s College London and collaborators have identified an “immune signature” that could help researchers better understand coronavirus disease 2019 (COVID-19) and serve as a valuable resource for predicting patient prognosis and informing clinical risk-based stratification.

10 Jun 2020

Research reveals 7 different SARS-CoV-2 strains arrived in California

The coronavirus disease (COVID-19) first emerged in Wuhan City in China in December 2019. From there, it has actively spread across the globe. The United States has been the hardest-hit country in the pandemic, with more than 1.97 million people infected.

10 Jun 2020

Examining the effect of smoking, nicotine and vaping on COVID-19 severity

Researchers at the University of Oxford say they will be conducting the most extensive study to date linking primary and clinical data for the assessment of associations between smoking status and the severity of coronavirus disease 2019 (COVID-19).

9 Jun 2020

COVID-19 produces lung inflammation in non-human primate experiments

A new study published on the online preprint server bioRxiv in June 2020 reports the successful use of three primate species to model the infection, pathogenesis, and clinical features associated with COVID-19. The research provides useful and immediately available models to test new vaccines and treatments.

9 Jun 2020

Inhibition of coronavirus spike protein binding to ACE2

A novel coronavirus, CoV-19, and a later phenotype CoV-2 were identified as the primary cause for severe acute respiratory syndrome (SARS CoV-2). The spike (S) protein of CoV-2 is one target for the development of a vaccine to prevent the viral entry into human cells. The inhibition of the direct interaction between ACE2 and the S-protein could provides a suitable strategy to prevent the membrane fusion of CoV-2 and the viral entry into human cells. Using MD simulations, we investigate the assembly process of a Coronavirus Spike protein fragment, the hexapeptide YKYRYL on the ACE2 receptor and its inhibitzory effect on the aggregation and activation of the CoV-2 spike receptor protein at the same receptor protein.

8 Jun 2020

Kidney enzyme renalase a potential therapy for severe COVID-19

Researchers from Yale School of Medicine have discovered that a low blood level of an enzyme called renalase is associated with severe coronavirus disease 2019 (COVID-19).

7 Jun 2020

SARS-CoV-2 gene deletions may cause milder infections and increase human-to-human transmission

In their recent paper released on the bioRxiv preprint server, a research group from Spain demonstrated how genome changes and deletions in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) could represent a strategy of natural selection used for lessening the impact of infection in order to increase viral transmission potential.

4 Jun 2020