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Exposure of microbial communities to antibiotics could facilitate the spread of plasmid-encoded genes

DNA molecules called plasmids – some of which protect bacteria from antibiotics – can spread rapidly through bacterial "communities" that are treated with antibiotics, new research shows.

27 May 2022

A 6.4 million genome analysis predicts dominant SARS-CoV-2 variants

In this new study in the journal Science, researchers have developed a hierarchical Bayesian regression model, named, PyR0, which can analyze the complete set of publicly available SARS-CoV-2 genomes.

26 May 2022

Sustained weight loss can help improve semen quality in men with obesity

Men all over the world are suffering from deteriorating semen quality – often referred to as an outright fertility crisis.

23 May 2022

Potential new diagnostic marker predicts successful, efficient development of mammalian egg cells

Researchers at the Centre for Genomic Regulation in Barcelona have identified a potential new diagnostic marker that predicts the successful and efficient development of mammalian egg cells.

23 May 2022

Epistatic drift leads to unpredictability in protein evolution

A critical goal in genetics and evolution is predicting the effects of mutations that may happen in the future and inferring the effects of those that happened in the past.

19 May 2022

Male pheromones may be the fountain of youth for aging females' eggs

Male pheromones just might be the fountain of youth for aging female animals' eggs, according to a new Northwestern University study.

19 May 2022

New micro-device could be a game-changer for thousands of people with infertility

A research team led by the University of Adelaide, in partnership with medical technology company Fertilis, has delivered a ground-breaking new micro-device to streamline the only fertility treatment procedure available for men with low sperm counts.

16 May 2022

Novel technique to measure sperm age may help predict pregnancy success

A novel technique to measure the age of male sperm has the potential to predict the success and time it takes to become pregnant, according to a newly published study by researchers at the Wayne State University School of Medicine.

13 May 2022

Discovery of new structure in the egg cells of zebrafish could provide insights into human reproduction

It is humbling to realize that we humans share about 70% of our genes with zebrafish. There are also a whole host of other similarities that make these small transparent fish an ideal animal model for the study of many human diseases and biological processes.

12 May 2022

Research highlight reports on the observed differences in transmissibility and pathogenicity of Omicron vs. earlier variants of SARS-CoV-2

A new paper published in Signal Transduction and Targeted Therapy reports the observed differences in transmissibility and pathogenicity of Omicron vs. earlier variants of SARS-CoV-2.

10 May 2022

Study highlights the cascading ecosystem consequences of sublethal parasitic infections in wild animals

Deer, caribou, bison and other similar animals are often infected by a range of internal parasites, including worms called helminths. Although many of these infections are not lethal, they can still impact health or animal behavior.

9 May 2022

Variolation - Face masks might reduce COVID-19 severity

In a recent study published in the Journal of the Royal Society Interface, researchers developed an epidemiological model to demonstrate that mask-induced variolation causes milder severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.

5 May 2022

SARS-CoV-2 BA.2 poses greater risk to global health than BA.1

In a recent study published in the journal Cell, researchers investigated distinguishing virological characteristics of Omicron sub-variant BA.2.

3 May 2022

Higher contact among vaccinated people may negatively influence vaccine effectiveness

In a new study, researchers reported that contact among vaccinated people could influence the effectiveness of COVID-19 vaccines.

2 May 2022

Scientists explore mixing of unvaccinated and vaccinated and implications for SARS-CoV-2 transmission

A recent study published in the Canadian Medical Association Journal (CMAJ) explored the effects of unvaccinated and vaccinated population mixing on coronavirus disease 2019 (COVID-19) transmission.

28 Apr 2022

Within-host model for the description of SARS-CoV-2 viral dynamics in the upper respiratory tract

A team of UK-based scientists has recently developed a within-host model to determine the dynamics of SARS-CoV-2 infection in the upper respiratory tract of affected individuals.

25 Apr 2022

Discovery can lead to new antiviral treatments against Crimean-Congo hemorrhagic fever

Researchers at Karolinska Institutet in Sweden have identified key signaling pathways that when blocked by existing drug candidates limit reproduction of the Crimean-Congo hemorrhagic fever (CCHF) virus.

19 Apr 2022

Scientists investigate how gut bacteria directly control the activity of specific neurons

Gut microbiota by-products circulate in the bloodstream, regulating host physiological processes including immunity, metabolism and brain functions.

15 Apr 2022

Study determines hemagglutinin inhibition seroprevalence against swine influenza viruses circulating in Hong Kong and Guangzhou

Researchers performed a quantitative assessment of the age-stratified seroprevalence of hemagglutination inhibition antibodies against five swine influenza viruses circulating in the Guangzhou and Hong Kong cities of China.

13 Apr 2022

Does COVID-19 vaccination affect IVF treatments?

A new study assesses the impact of COVID-19 vaccination in women undergoing assisted reproduction.

12 Apr 2022