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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.

Will mRNA vaccine boosters be required for SARS-CoV-2 variants?

A new study shows that the highly effective mRNA Moderna vaccine designed against the original SARS-CoV-2 strain may lose some efficacy as new variants arise.

30 Aug 2021

Can SARS-CoV-2 be transmitted in the food cold chain?

A new study reports that the risk of transmitting SARS-CoV-2 through such fomites is very low.

30 Aug 2021

Development of extra protective broad-spectrum antimicrobial face shield

In a new study available on the preprint server Preprints*, researchers have innovated a transparent face shield with intrinsic antimicrobial activity.

30 Aug 2021

New study analyzes altered gene expression in severe COVID-19

In a paper recently uploaded to the bioRxiv* preprint server, the genetic link between COVID-19 severity and gene expression is investigated, hoping to allow early identification of otherwise healthy individuals that will likely require hospitalization if infected.

30 Aug 2021

Antisense oligonucleotides engineered to inhibit SARS-CoV-2

In a paper recently uploaded to the bioRxiv* preprint server, structure-based ASOs are developed against SARS-CoV-2, intended to bond with RNA in its structured in situ form, rather than the more rarely encountered linear section, achieving greater affinity and specificity than linear ASOs, and demonstrating inhibition of virus replication in human cells.

30 Aug 2021

The impact of mild SARS-CoV-2 infection on maternal-fetal immunity

Recently, a new study published on the pre-print server bioRxiv* examined the effect that maternal asymptomatic COVID-19 had on decidual and peripheral immune cells during the later stage of pregnancy.

30 Aug 2021

Polymeric and lipid nanoparticles in self-amplifying RNA vaccines result in higher protein expression and immunogenicity

Self-amplifying RNA (saRNA) is an advanced platform for nucleic acid vaccine development. The backbone is typically derived from an alphaviral genome and encodes a gene of interest (GOI) and a viral replicase that can amplify the genomic and subgenomic RNA.

30 Aug 2021

Large Israeli study offers detailed look at safety profile of mRNA vaccine against SARS-CoV-2

A deep look into a nationwide mass vaccination setting in Israel revealed that the BNT162b2 (Pfizer–BioNTech) vaccine is not linked with an elevated risk of a majority of the adverse events under study, with the exception of myocarditis. However, even that potentially severe adverse event is much more pervasive following the infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), found a new study published in the New England Journal of Medicine (NEJM).

30 Aug 2021

Next-gen COVID vaccine to make persistent neutralizing antibodies

Presently, there is a need to develop improved versions of COVID-19 vaccines that are effective against the SARS-CoV-2 variants of concern (VOC) and can confer long-term protection. Considering the need of the hour, scientists from the University of Sydney in Australia have generated a new COVID-19 vaccine CoVac-II and evaluated its effect against COVID-19 strains. The findings from this study are published on the bioRxiv* preprint server while awaiting peer review.

30 Aug 2021

Mystery of roe deer embryonic diapause revealed

Everyone is familiar with the roe deer, either from crossword puzzles or from real-life encounters during a jog or a hike in the forest: majestic creatures with elegant big black eyes.

28 Aug 2021

Research analyzes the role of RNA tags in Alzheimer’s disease

Understanding the role of tau protein in Alzheimer's disease (AD) has led to new ways to diagnose it as well as the creation of medicines now in clinical trials to treat it.

28 Aug 2021

Northwestern researchers continue investigation on all aspects of COVID-19 pandemic

Northwestern Medicine scientists continue to investigate all aspects of the COVID-19 pandemic: from molecular mechanisms of infection, to child hospitalization and single-dose vaccine response.

28 Aug 2021

SARS-CoV-2 destabilizes host RNA to improve fitness

In a study recently published in the journal Nature Communications, scientists have mapped the interactions between SARS-CoV-2 RNA and host RNA. They have observed that the virus heavily methylates its genome using the methylation machinery of the host RNA, leading to an improvement in viral fitness.

27 Aug 2021

Recognizing viral genomes in quick, ‘CRISP’ ways

Researchers from China recently reviewed the latest advancements, applications, and prospects of virus detection using CRISPR-Cas systems.

27 Aug 2021

New machine learning techniques help resolve structural biology challenges

Determining the 3D shapes of biological molecules is one of the hardest problems in modern biology and medical discovery. Companies and research institutions often spend millions of dollars to determine a molecular structure – and even such massive efforts are frequently unsuccessful.

27 Aug 2021

New machine learning method enhances computational prediction of RNA structures

Researchers present ARES (Atomic Rotationally Equivariant Scorer) – a machine learning method that significantly improves the computational prediction of RNA structures over previous approaches. Like proteins, RNA molecules twist and fold into intricate three-dimensional shapes that are crucial to their function.

27 Aug 2021

Two mRNA vaccines are effective even without post-shot symptoms or prior SARS-CoV-2 infection

Vaccination with the two messenger RNA (mRNA) vaccines for SARS-CoV-2, the virus that causes COVID-19, yields a robust antibody response, even if a person did not develop significant symptoms following vaccination or did not have a prior SARS-CoV-2 infection.

26 Aug 2021