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Inhaled steroids reduce ACE2 expression in COPD lungs

A new study by scientists at Imperial College London, University of Newcastle and Prokarium, and published on the preprint server bioRxiv* in June 2020 examines the role played by inhaled corticosteroids (ICS) in the risk of acquisition of COVID-19 infection by COPD patients.

15 Jun 2020

Creating the first 3D neural map of a heart

News-Medical spoke to Dr. Vadigepalli and Dr. Schwaber about their groundbreaking research in which they managed to map the neurons in the heart.

15 Jun 2020

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

Steroidal drugs subvert SARS-CoV-2 interaction with ACE2 receptors

A new study by Italian researchers and published online on the preprint server bioRxiv* in June 2020 reports the ability of several existing steroidal drugs to reduce the binding of the SARS-CoV-2 to the ACE2 receptor. This could help define newer strategies using viral entry blockers to reduce viral load.

14 Jun 2020

Remdesivir prevents replication of SARS-CoV-2 in human intestinal organoids

A new German study published on the preprint server bioRxiv* in June 2020 shows that the drug remdesivir can reduce the replication of SARS-CoV-2 in human intestinal organoids.

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

Synthetic nanobodies potent neutralizers for SARS-CoV-2

Researchers at the Chinese Academy of Sciences report the generation of potent synthetic nanobodies that selectively and efficiently neutralize severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pseudovirus.

11 Jun 2020

Race-related differences in genetic determinants of COVID-19 severity

Researchers at the University of Iowa have identified differences in gene expression levels between African Americans and European Americans that may explain the disproportionately higher rates of coronavirus disease 2019 (COVID-19) cases and related deaths among African Americans.

11 Jun 2020

Protein design can solve the puzzle of Parkinson's disease

Dopamine is a neurotransmitter involved in everything from higher cognitive functions to motor control, motivation, arousal, reinforcement, and sexual gratification, the receptors it acts on have been a longstanding target for treating disorders like Parkinson's disease, which is caused by the degeneration of dopamine-using neurons that control movement.

11 Jun 2020

Examining dopamine receptors in their natural environment

Dopamine, a chemical that sends messages between different parts of the brain and body, plays a key role in a variety of diseases and behaviors by interacting with receptors on cells.

11 Jun 2020

Hydroxychloroquine suppresses 'trained immunity'

A new study published on the preprint server medRxiv in June 2020 shows that the drug hydroxychloroquine (HCQ) suppresses a form of immunity called ‘trained immunity,’ with repercussions for its potential use to treat COVID-19.

11 Jun 2020

Scientists investigate immune responses to SARS-CoV-2 spike immunogens

The coronavirus pandemic is actively spreading across the globe, with millions of people infected. Amid the global health crisis, scientists race to develop an effective vaccine against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.

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

Texas A&M scientists develop 2D nanosheets to advance cancer treatment

Scientists in the Department of Biomedical Engineering at Texas A&M University are developing new ways to advance the field of regenerative medicine and cancer treatment. They are developing a 2D nanosheet that is 1,000 times smaller than a strand of hair.

10 Jun 2020

Metabolic diseases alter ACE2 expression and increase COVID-19 severity

A new study published on the preprint server medRxiv in June 2020 reports that one mechanism for this variable severity is the differential expression of the ACE2 receptor in various metabolic conditions, thereby facilitating viral entry into the host cells.

9 Jun 2020

Indirect viral infection of the kidneys by SARS-CoV-2-induced inflammatory reaction

SARS-CoV-2-associated acute kidney injury is not uncommon. Many hospitalized COVID-19 patients - as many as 80% of critically ill COVID-19 patients, according to a current study - develop acute kidney injury, but without requiring dialysis in most cases. Proteinuria and hematuria are present in about half the cases.

8 Jun 2020

Virginia Tech researcher develops new ‘fat burning’ molecule with potential to treat obesity

Obesity affects more than 40 percent of adults in the United States and 13 percent of the global population.

8 Jun 2020

Researchers discover important molecular mechanism of Charcot-Marie-Tooth disease

Charcot-Marie-Tooth (CMT) disease is the most common form of inherited neuropathies. A genetic mutation causes the insulating myelin layer of peripheral nerves to become progressively damaged, resulting in severe disabilities in the case of CMT type 4B, for instance.

8 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

SARS-CoV-2 invasion of central nervous system through olfactory tract

As the COVID-19 pandemic continues to claim lives throughout the world, the evidence is mounting that the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) affects the respiratory tract as well as the central nervous system. Now, a new study by German researchers published on the preprint server bioRxiv in June 2020 describes various neurological manifestations of COVID-19, as well as the underlying pathophysiology.

7 Jun 2020