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Increased viral replication and shedding in nonhuman primates carrying SARS-CoV-2 B.1.1.7 variant

A team of researchers from the US and UK used the AGM intranasal model of SARS-CoV-2 infection to determine differences between a contemporary SARS-CoV-2 D614G variant circulating in summer 2020 and the B.1.1.7 UK variant of concern that emerged in late 2020.

16 Jun 2021

Cissampelos pareira (velvetleaf) exhibits anti-SARS-CoV-2 potential

Cissampelos pareira (Cipa), also known as velvetleaf, is a widely used hormone modulator used to treat reproductive disorders and fever. Research has shown that it can inhibit three serotypes of Dengue virus (DENV) and affect various hormones.

16 Jun 2021

Prior vaccination against diphtheria and tetanus associated with less severe COVID-19

The researchers found that individuals with registered diphtheria or tetanus vaccinations were less likely to develop severe COVID-19 than people who had only received other vaccinations. The results of this study are posted to the medRxiv* preprint server.

16 Jun 2021

A study on SARS-CoV-2 proteins for the development of COVID-19 drugs

The authors of the review have grouped the virus proteins into three categories, (a) host-entry, (b) self-acting, and (c) host-interacting. Additionally, individual SARS-CoV-2 proteins are evaluated to be either directly targeted by drugs or block virus-host interactions.

16 Jun 2021

Rapidly evolving SARS-Cov-2 strains may give rise to escape variants

The number of COVID-19 variants is growing rapidly, so much that the scale and scope of mutation may pose a threat to the continuing successful use of the current vaccines and therapies.

16 Jun 2021

Two vaccines elicit durable neutralizing antibody responses to SARS-CoV-2 in pre-clinical study

A group of scientists led by researchers at the University of North Carolina at Chapel Hill, Weill Cornell Medicine and NewYork-Presbyterian reported that the Moderna mRNA vaccine and a protein-based vaccine candidate elicited durable neutralizing antibody responses to SARS-CoV-2 in pre-clinical research. There were no adverse effects.

16 Jun 2021

Studies shed new light on disease processes in tuberculosis

Two new studies have cast unprecedented light on disease processes in tuberculosis, identifying key genetic changes that cause damage in the lungs and a drug treatment that could speed up recovery.

16 Jun 2021

Researchers identify specific cells and proteins that control the sneeze reflex

A tickle in the nose can help trigger a sneeze, expelling irritants and disease-causing pathogens. But the cellular pathways that control the sneeze reflex go far beyond the sinuses and have been poorly understood.

16 Jun 2021

Chronic inflammation causes aging of the pituitary gland

Stem cell biologist Hugo Vankelecom (KU Leuven) and his colleagues have discovered that the pituitary gland in mice ages as the result of an age-related form of chronic inflammation. It may be possible to slow down this process or even partially repair it. The researchers have published their findings in PNAS.

15 Jun 2021

Scientists to present new findings on protein biochemistry, glycobiology at Life Science Symposium 2021

How does human life begin, which processes influence the human gut microbiome, and what do researchers know about the collective intelligence of honeybees? Members of the German National Academy of Sciences Leopoldina will answer these and other questions at the virtual symposium of Class II - Life Sciences.

15 Jun 2021

Researchers determine patterns of nuclear alignment responsible for LR-asymmetrical changes in invertebrates

On the outside, animals often appear bilaterally symmetrical with mirror-image left and right features. However, this balance is not always reflected internally, as several organs such as the lungs and intestines are left-right (LR) asymmetrical.

15 Jun 2021

Chronic fatigue a significant challenge for most long COVID patients

Researchers in Canada have conducted a study suggesting that the majority of patients living with long COVID (coronavirus disease) following infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) experience chronic fatigue that is at least as severe as that seen in several other clinical conditions.

15 Jun 2021