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Ribonucleic acid (RNA) is a biologically important type of molecule that consists of a long chain of nucleotide units. Each nucleotide consists of a nitrogenous base, a ribose sugar, and a phosphate.

Why SARS-CoV-2 B.1.1.7 is more virulent

A new preprint research paper by scientists from Sweden and India attempts to provide a preliminary answer to these questions using computational modeling. The research, which appears on the bioRxiv* server, predicts increased virulence with the new variant. If validated, this could help public health authorities prepare for new variants' possible impact as they emerge.

2 Feb 2021

Elevated ACE2 and inflammation levels increase risk for pregnant women infected with SARS-CoV-2

Among the hundred million or so cases of coronavirus disease 2019 (COVID-19) that have occurred since the pandemic began, pregnant women have been a conspicuous risk group. However, the exact nature of the risk they and their fetuses face, and the mechanism by which it operates, is far from clear.

2 Feb 2021

Urinary shedding of spike protein in COVID-19 patients

A team of scientists from the United States has recently revealed that about 25% of people with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection develop renal complications and that the viral spike protein can be detected in the urine samples of these patients. The study is currently available on the medRxiv* preprint server.

1 Feb 2021

New platform using green algae tests for SARS-CoV-2 virus

Researchers at the University of California, San Diego, have demonstrated the potential of using green algae to make recombinant viral proteins that could be used in large scale assays to detect antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) - the agent that causes coronavirus disease 2019 (COVID-19).

1 Feb 2021

Ivermectin may not be the ‘silver bullet’ antiviral against COVID-19

A team of researchers based in Peru and the U.S. recently examined the role of the anti-parasitic drug ivermectin in treating COVID-19.

1 Feb 2021

Inhaled single dose vaccine creates antibodies and prevents infection in rhesus macaques

Now, a new preprint research paper describes a chimpanzee adenovirus-vectored vaccine that, when administered intranasally in rhesus macaques, led to a robust immune response and demonstrated protection against infection by the virus that causes COVID-19, namely, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The preprint is published on the bioRxiv server.

1 Feb 2021

Phase III study of (m)RNA expression did not confer significant advantage for stage II-III lung cancer

A phase III study examining whether messenger (m)RNA expression correlated with sensitivity or resistance to chemotherapy did not confer a statistically significant advantage in overall survival for patients with resected stage II-III non-small cell lung cancer (NSCLC), according to research presented at the International Association for the Study of Lung Cancer World Conference on Lung Cancer.

31 Jan 2021

E484K mutation is potentially associated with SARS-CoV-2 adaptive fitness

A team of Brazilian scientists has recently conducted genomic and phylogenetic analyses of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) genome to understand the viral evolution process better. Their analyses reveal that the E484K mutated variant of SARS-CoV-2 is present in three different lineages in four Brazilian regions and that the mutation may serve as a common solution for viral evolution.

31 Jan 2021

Scientists study how different genes dance to the circadian rhythm

In 2017, the Nobel Prize in Physiology or Medicine went to three scientists who uncovered the molecular mechanisms that control the circadian rhythm, otherwise known as the "wake-sleep" cycle.

29 Jan 2021

Researchers develop ‘next-generation vaccine platform’ against SARS-CoV-2

Researchers have designed a subunit vaccine based on the SARS-CoV-2 spike protein co-administered with CpG (Oligodeoxyribonucleotides) adjuvant.

29 Jan 2021

Researchers release first Japanese reference genome

The Japanese now have their own reference genome thanks to researchers at Tohoku University who completed and released the first Japanese reference genome (JG1).

29 Jan 2021

Viruses like SARS-CoV-2 may be more widespread than previously thought

Researchers in Cambodia, France, and the United States have conducted a study indicating that viruses related to SARS-CoV-2 – the agent that causes COVID-19 – are far more geographically widespread than previously thought.

28 Jan 2021

David Julius and Ardem Patapoutian receive Frontiers of Knowledge Award in Biology and Biomedicine

The BBVA Foundation Frontiers of Knowledge Award in Biology and Biomedicine has gone in this thirteenth edition to David Julius, from the University of California, San Francisco, and Ardem Patapoutian, from the Scripps Institute, La Jolla (United States), "for identifying the receptors that enable us to sense temperature, pain and pressure."

28 Jan 2021

Plants depend on LEAFY protein that enables cells to change their fate

Cells don't express all the genes they contain all the time. The portion of our genome that encodes eye color, for example, doesn't need to be turned on in liver cells. In plants, genes encoding the structure of a flower can be turned off in cells that will form a leaf.

28 Jan 2021

Viral ExoN regulates the rate of recombination in SARS-CoV-2

Researchers at Vanderbilt University Medical Center (VUMC) and the University of Texas Medical Branch (UTMB) at Galveston have discovered what may be the Achilles' heel of the coronavirus, a finding that may help close the door on COVID-19 and possibly head off future pandemics.

28 Jan 2021

Innovative breakthrough promises to diagnose DNA rearrangement mutations

Doctors are increasingly using genetic signatures to diagnose diseases and determine the best course of care, but using DNA sequencing and other techniques to detect genomic rearrangements remains costly or limited in capabilities.

28 Jan 2021

Melatonin synthesized in the lungs acts as a barrier against SARS-CoV-2

Melatonin synthesized in the lungs acts as a barrier against SARS-CoV-2, preventing expression of genes that encode proteins in cells such as resident macrophages in the nose and pulmonary alveoli, and epithelial cells lining the alveoli, all of which are entry points for the virus.

28 Jan 2021

Study describes a safe potential therapeutic tool for liver regeneration

A new study led by researchers at the Center for Regenerative Medicine at Boston University School of Medicine (BUSM) and Boston Medical Center (BMC) now describes a safe new potential therapeutic tool for the recovery of liver function in chronic and acute liver diseases.

27 Jan 2021

What do we know about the SARS-CoV-2 vaccines so far?

A new study surveys what we know so far about SARS-CoV-2 vaccine candidates from advanced clinical trials.

27 Jan 2021

Suicide mosquitos may prevent the spread of Zika virus

In 2016, the World Health Organization called the Zika virus epidemic a "public health emergency of international concern" due to the virus causing birth defects for pregnant women in addition to neurological problems.

27 Jan 2021