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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.

Chikungunya can infect central nervous system and impair cognitive, motor functions

A study conducted by an international team of researchers with FAPESP's support shows that infection by chikungunya virus can produce even more severe manifestations than the typical symptoms of the disease, such as acute fever, headache, rash, and intense joint and muscle pain.

4 Nov 2020

Discoverey of four SARS-CoV-2 Mpro inhibitors, boceprevir, calpain inhibitors II and XII and GC-376

A team of scientists from the United States has recently revealed that small molecule inhibitors of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) main protease exhibit potent antiviral activity. These inhibitors show better efficacy when used in combination with antiviral medicine Remdesivir. The study is currently available on the bioRxiv* preprint server.

3 Nov 2020

Adaptive evolution of human coronaviruses may necessitate frequent reformulation of vaccines

Researchers from the Vaccine and Infectious Disease Division at the Fred Hutchinson Cancer Research Center, USA, have revealed that adaptive evolution in the antigenic regions facilitates seasonal coronaviruses to escape the host immune responses and to cause recurrent infections.

3 Nov 2020

Rapid generation of divergent synthetic antibodies against SARS-CoV-2 in a cell-free engineering platform

In a groundbreaking bioRxiv paper, a research group from the Massachusetts Institute of Technology (MIT), Harvard University and Howard Hughes Medical Institute in the US engineered antibodies against the receptor-binding domain (RBD) of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike glycoprotein by using a novel approach. In doing so, they also identified more than 800 predicted binder families.

3 Nov 2020

Remdesivir metabolite GS-441524 inhibits SARS CoV-2 in mouse model, finds study

This new study titled, "Remdesivir Metabolite GS-441524 Efficiently Inhibits SARS-CoV-2 Infection in Mouse Model," was released online as a preprint on the bioRxiv* server, prior to undergoing the peer-review process.

2 Nov 2020

Research finds detectable but low-level SARS-CoV-2 contamination on public surfaces

A team of researchers at Tufts University found that 8.3 percent of surface samples tested positive for SARS-CoV-2, including crosswalk buttons, trash can handles, and door handles of essential business entrances such as grocery stores, banks, gas stations, and liquor stores.

2 Nov 2020

New project aims to find the effect of COVID-19 infection on the next generation

So far, 50 Covid-19 patients between 30 and 40 have delivered a sperm sample. Students are next in line. The plan is that participants will return after 12 months for more testing.

2 Nov 2020

Research shows how remdesivir inhibits SARS-CoV-2 replication

In a recent bioRxiv preprint, a research team from Germany, Goran Kokic et al. study the molecular mechanism of remdesivir-induced stalling of RdRp - using synthetic RNA chemistry, biochemistry, and cryo-electron microscopy.

2 Nov 2020

Ethacridine blocks SARS-CoV-2 with a distinct mode of action

Now, researchers from the University of California, San Francisco, and Stanford University, California, USA, reported a safe and potent antiseptic for use in humans named ethacridine, which effectively inhibits SARS-CoV-2 even at very low concentrations of EC50 ~ 0.08 µM. Their work has is published on the preprint server bioRxiv*.

1 Nov 2020

5-amino levulinic acid inhibits SARS-CoV-2 infection in vitro

Researchers tested 5-amino levulinic acid in vitro in human-derived cells and found it prevents severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Because it is safe and ubiquitous in plants and animals, it could be a potential drug against SARS-CoV-2.

1 Nov 2020

First-of-its-kind synthetic DNA vaccine designed against Powassan virus

Scientists at The Wistar Institute have designed and tested the first-of-its-kind synthetic DNA vaccine against Powassan virus (POWV), targeting portions of the virus envelope protein.

30 Oct 2020

Washing hands and Halloween candy can reduce COVID-19 exposure risk

New research shows that COVID-19 exposure risk from contaminated candy could be successfully mitigated both by washing hands and washing candy using a simple at-home method. A team of researchers published this work today in mSystems, an open-access journal of the American Society for Microbiology.

30 Oct 2020

Study identifies new cause of inflammation in people living with HIV

While current antiretroviral treatments for HIV are highly effective, data has shown that people living with HIV appear to experience accelerated aging and have shorter lifespans - by up to five to 10 years - compared to people without HIV.

30 Oct 2020

Study analyzes the viral load on Halloween candy handled by COVID-19 patients

Like a specter, the question looms: How risky is trick-or-treating with SARS-Cov-2, the virus that causes COVID-19, in the air -- and possibly on the candy?

30 Oct 2020

APS technique shows how SARS-CoV-2 virus camouflages itself inside the human body

Scientists using the Advanced Photon Source have discovered new insights into the ways the SARS-CoV-2 virus camouflages itself inside the human body.

30 Oct 2020

Study examines link between SARS-CoV-2 genomic load and COVID-19 patient outcomes

A new study published online in the Annals of the American Thoracic Society examines whether the amount of RNA, or genomic load, of SARS-CoV-2 detected in swab tests of patients being admitted to the hospital with viral pneumonia is associated with more severe COVID-19.

30 Oct 2020

Researchers identify distinct link between autism and brain cell abnormalities

Johns Hopkins Medicine researchers report that new experiments with genetically engineered mice have found clear connections among a range of autism types and abnormalities in brain cells whose chemical output forges platonic (non-sexual) feelings of love and sociability.

30 Oct 2020

Study: Toxins produced by tube-dwelling anemones have pharmacological potential

Researchers based in Brazil and the United States have completed the first-ever mapping exercise to profile the toxins produced by tube-dwelling anemones, or cerianthids, a family of marine animals belonging to the same phylum (Cnidaria) as sea anemones, jellyfish and corals.

30 Oct 2020

SARS-CoV-2 load varies widely in the community and over time

A new study published on the preprint server medRxiv* in October 2020 reports that there are large differences in the viral load in different communities. Moreover, the authors say that the cycle threshold values required to obtain a positive result for viral RNA by polymerase chain reaction may provide an early warning of an outbreak.

29 Oct 2020

Antiviral inhibitor DDX42 shows broad activity against Chikungunya, HIV and SARS-CoV-2

By exploiting type 1 interferon's ability to foster an antagonistic cellular environment for viral replication, a research group from France pinpointed DEAD-box RNA helicase DDX42 as an intrinsic inhibitor of HIV, but also other pathogenic viruses such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and Chikungunya virus.

29 Oct 2020

RNA News and Research

Further Reading

Chikungunya can infect central nervous system and impair cognitive, motor functions

Discoverey of four SARS-CoV-2 Mpro inhibitors, boceprevir, calpain inhibitors II and XII and GC-376

Adaptive evolution of human coronaviruses may necessitate frequent reformulation of vaccines

Rapid generation of divergent synthetic antibodies against SARS-CoV-2 in a cell-free engineering platform

Remdesivir metabolite GS-441524 inhibits SARS CoV-2 in mouse model, finds study

Research finds detectable but low-level SARS-CoV-2 contamination on public surfaces

New project aims to find the effect of COVID-19 infection on the next generation

Research shows how remdesivir inhibits SARS-CoV-2 replication

Ethacridine blocks SARS-CoV-2 with a distinct mode of action

5-amino levulinic acid inhibits SARS-CoV-2 infection in vitro

First-of-its-kind synthetic DNA vaccine designed against Powassan virus

Washing hands and Halloween candy can reduce COVID-19 exposure risk

Study identifies new cause of inflammation in people living with HIV

Study analyzes the viral load on Halloween candy handled by COVID-19 patients

APS technique shows how SARS-CoV-2 virus camouflages itself inside the human body

Study examines link between SARS-CoV-2 genomic load and COVID-19 patient outcomes

Researchers identify distinct link between autism and brain cell abnormalities

Study: Toxins produced by tube-dwelling anemones have pharmacological potential

SARS-CoV-2 load varies widely in the community and over time

Antiviral inhibitor DDX42 shows broad activity against Chikungunya, HIV and SARS-CoV-2

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