Category Biology/Biotechnology

A team at the Technical University of Munich (TUM) has induced stem cells to emulate the development of the human heart. The result is a sort of “mini-heart” known as an organoid. It will permit the study of the earliest development phase of our heart and facilitate research on diseases.

The human heart starts forming approximately three weeks after conception. This places the early phase of heart development in a time when women are often still unaware of their pregnancy...

Exposure to female odours and pheromones causes weight loss and extend the lifespans of mice, which may have implications for humans, University of Otago researchers have found.

Lead researcher Dr Michael Garratt, of the Department of Anatomy, says while it was already known that sensory cues in humans and animals influence the release of sex hormones, this study shows that these cues could have more wide-spread physiological effects on metabolism and ageing.

“Our studies show that female odours slow the sexual development of female mice, but consequently extends their lifespan. And we also show that the smell of females can increase male mouse energy expenditure, which subsequently influences their body weight and body fat levels,” he says.

Newborn mice were exposed to odour...

White blood cells called neutrophils have an unappreciated role in eradicating solid tumors, according to a surprise discovery from a team led by Weill Cornell Medicine scientists.

In the study, published March 30 in Cell, the researchers investigated how a T cell-based immunotherapy was able to destroy melanoma tumors even though many of the tumor cells lacked the markers or “antigens” targeted by the T cells...

Researchers have developed a flexible electronic bandage for use on chronic wounds, particularly in diabetic patients. The bandage monitors signs of inflammation, collecting medical data, providing medication as needed and stimulate tissue growth.

These kinds of chronic wounds are not just debilitating for the people suffering from them. They are also a drain on healthcare systems, representing a $25 billion financial burden in the United States alone each year.

A new kind of smart bandage developed at Caltech may make treatment of these wounds easier, more effective, and less expensive...