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Research sheds doubt on the Pangolin link to SARS-CoV-2

A startling new study by researchers at the Broad Institute of MIT and the University of British Columbia and published on the preprint server bioRxiv* in July 2020 casts doubt on the hypothesis that the current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was transmitted from pangolins acting as the intermediate host. Instead, the authors suggest, the pangolins themselves were incidentally infected from other animals in captivity or from humans.

8 Jul 2020

Evolutionary snapshot reveals genetic stability of SARS-CoV-2

A multinational study currently available on the bioRxiv preprint server shows that in the early large genome of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) only a handful of amino acids are exchanged, implying a relatively low mutation rate and selection pressure.

7 Jul 2020

NPHS1 is a disease-susceptibility gene for steroid-sensitive nephrotic syndrome, reveals study

An international research collaboration, including Professor IIJIMA Kazumoto et al. (of the Department of Pediatrics, Kobe University Graduate School of Medicine) has revealed that NPHS1 is a disease-susceptibility gene for steroid-sensitive nephrotic syndrome in children.

3 Jul 2020

Researchers find possible cause for SARS-CoV-2 reactive T cells in uninfected individuals

The current pandemic of COVID-19 is caused by the severe acute respiratory syndrome coronavirus (SARS-CoV) -2, leading to severe pneumonia, acute respiratory distress syndrome, and death in a sizable minority of cases. However, the most significant number are asymptomatic or have only mild infection from which they rapidly recover.

2 Jul 2020

Structure of the full SARS-CoV-2 RNA genome in infected cells

The current COVID-19 pandemic caused by a single-stranded RNA virus, thought to have jumped across species barriers to infect humans, has spread rapidly across the globe infecting over 10 million individuals. The virus, now known as the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is the causative agent of COVID-19 disease. COVID-19 disease is a respiratory illness where symptoms can range from very mild to severe and include fever, coughing, a sore throat, and shortness of breath.

2 Jul 2020

Specific SARS-CoV-2 genetic elements found in different insect species

In a recent bioRxiv paper, researchers from Norway and the US demonstrate the presence of a highly conserved, mobile genetic element (thus far with unknown function) in genomes of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and a large number of insects – opening the door for hitherto unexplored treatment opportunities.

30 Jun 2020

Newly identified molecules can help develop COVID-19 therapeutics

SARS-CoV-2, the coronavirus causing the global COVID-19 pandemic, uses a protein called polymerase to replicate its genome inside infected human cells.

30 Jun 2020

Spike protein and human ACE2 binding ability shows SARS-CoV-2 viral adaptation

A new study published on the preprint server bioRxiv in June 2020 reports some important findings that could shed light on this question. As the pandemic marches on, having claimed over 500,000 lives and caused well over 10 million infections to date, the task of defining and predicting factors that predispose to infectivity across species becomes ever more critical.

30 Jun 2020

A glycan analysis of SARS-CoV-2 ACE2 complex

Researchers in the U.S. have produced molecular dynamic simulations of the Spike protein found on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its interaction with the host cell receptor angiotensin-converting enzyme 2 (ACE2).

29 Jun 2020

Evidence of link between ACE2 genotype and COVID-19 disease severity

A new study published on the preprint server medRxiv in June 2020 shows that variants in the ACE2 gene which encodes the enzyme receptor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes COVID-19 disease, are linked to the risk of severe disease.

24 Jun 2020

Growth, adaptation and neutralization of SARS-CoV-2 with acute-phase serum

One recent study published on the preprint server bioRxiv in June 2020 reports the results of growing and characterizing the virus, as well as the development of neutralizing antibodies in the serum of acutely infected hospitalized patients with COVID-19.

22 Jun 2020

Favipiravir has weak effect on SARS-CoV-2 and Hydroxychloroquine none at all in hamster model

A new study from Belgian researchers shows that antiviral drug Favipiravir could have a weak effect against the dreaded novel coronavirus or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as seen in hamster models. However, the study also finds there is no efficacy of the much-touted drug Hydroxychloroquine.

22 Jun 2020

Blood types and COVID-19 risk confirmed

Blood type may play a pivotal role in driving disease severity among coronavirus disease (COVID-19) patients. Genetic analysis of COVID-19 patients has shown that people with blood type O seemed to be protected against severe disease. In contrast, those with blood type A may experience complications tied to the viral infection.

18 Jun 2020

Study reveals new insight into Fuchs’ endothelial corneal dystrophy

The molecular changes that lead to Fuchs' endothelial corneal dystrophy (FECD) occur decades before the disease causes blurry vision and other noticeable symptoms in patients, new research by UT Southwestern scientists shows.

17 Jun 2020

Highly conserved RNA structures are essential for SARS-CoV-2 replication and pathogenesis

A recent study from the University of North Carolina at Chapel Hill revealed how selective pressure helps in preserving secondary RNA structures in coronavirus genomes, unveiling a pivotal role of these elements in viral replication and pathogenesis. The paper is currently available on the bioRxiv* preprint server.

17 Jun 2020

Scientists examine SARS-CoV-2 cell entry in different species

Researchers in China have demonstrated the ability of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to interact with the host cell receptors of multiple species of animals.

17 Jun 2020

Mapping RNA sequences of therapeutic value in the SARS-CoV-2 genome

Now, in new research published on the preprint server bioRxiv European scientists have performed RNA structure probing to obtain a single-base resolution secondary structure map of the full SARS-CoV-2 coronavirus genome.

17 Jun 2020

Tracing coronavirus habitats with genomics

Now, a new study by researchers at the University of Ottawa and published on the preprint server bioRxiv in June 2020 reports the differences in genomes of viruses that are exposed to antiviral proteins vs. those that are not. This host-derived pressure on the virus to adapt may help devise newer ways to build an effective vaccine.

15 Jun 2020

Case series: COVID-19 in teriflunomide-treated patients with MS

During the COVID-19 pandemic, patients with multiple sclerosis (MS) and their clinicians have had questions and concerns about whether immunotherapies for MS could influence risk for infection or lead to an unfavorable outcome.

12 Jun 2020

Unique mutations could weaken Indian SARS-CoV-2 strain

A new study published on the preprint server bioRxiv in June 2020 suggests that the presence of unique mutations in the viral strains circulating in India has led to their attenuation.

9 Jun 2020