Q&A: How coronavirus is putting a spotlight on sex differences in medicine

More than six months into the coronavirus crisis, data show that not just age, but also biological sex plays a pivotal role in the manifestation and response to Covid-19, with more men dying from acute infections versus women in the short term. This discrepancy has shined a spotlight on a key theme that has gained traction in … Read more

Q&A: ‘We are only at the beginning of the coronavirus pandemic’ – Prof. Peter Piot

Even if a vaccine for coronavirus is developed, it's likely that we will have to continue to change the way we interact with each other, says Prof. Piot. Image credit - Mick De Paola/Unsplash, licenced under Unsplash licence

By Annette Ekin We’re only at the start of the coronavirus pandemic although the second wave may take a different form to the first one, says veteran virologist Professor Peter Piot, who has spent the past 40 years tracking down and fighting viruses. Prof. Piot, who helped discover Ebola at age 27 and has led … Read more

Genetics could explain how traumatic events affect people’s health

There could be a genetic explanation for why some people are more susceptible to ill health following traumatic life events such as a natural disaster. Image credit - Pfc. Nicholas T. Howes, USMC

by Kelly Oakes Facing the death of a loved one, being given a life-threatening diagnosis, or living through a natural disaster is difficult enough. But those who get through these traumatic life events often face further ill effects. Someone’s chances of developing post-traumatic stress disorder (PTSD), depression, and anxiety all increase after being exposed to significant … Read more

Genetically engineered animals offer fresh hope to heart valve patients

Genetically engineered mutations in cows could pave the way for transplant patients to receive whole animal organs in the future. Image credit - Pexels/Kat Jayne, licensed under Pexels license

Scientists have cloned a genetically engineered bull which they hope will help heart valve transplant patients lead better quality lives and benefit people with red meat allergies. Every year, about 300,000 people worldwide receive a new heart valve. Whenever possible, doctors use valves made of tissue from cows or pigs, because the synthetic alternatives can … Read more

How did the plague reshape Bronze Age Europe?

In the early Bronze Age, there was an infusion of a different genetic makeup in Europe whose origin ancient DNA experts are trying to explain. Image credit - geograph/David Dixon, licensed under CC BY-SA 2.0

Europe changed dramatically during the Bronze Age, with huge population shifts generally ascribed to the rise of new metal technologies, trading and climate change. But scientists believe that there may have been another reason for this social upheaval – the plague, possibly transported by, or on the back of, newly domesticated horses. Plague is forever … Read more