Category Health/Medical

Scientists develop biofuel cells that can power wearable electronics purely by using human sweat. Wearable electronic devices and biosensors are great tools for health monitoring, but it has been difficult to find convenient power sources for them. Now, a group of scientists has successfully developed and tested a wearable biofuel cell array that generates electric power from the lactate in the wearer’s sweat, opening doors to electronic health monitoring powered by nothing but bodily fluids.

It cannot be denied that, over the past few decades, the miniaturization of electronic devices has taken huge strides...

A new source of energy-expending brown fat cells has been uncovered by researchers at the Joslin Diabetes Center, which they say points towards potential new therapeutic options for obesity. According to the new report, published in Nature Metabolism, the key lies in the expression of a receptor called Trpv1 (temperature-sensitive ion channel transient receptor potential cation subfamily V member 1) — a protein known to sense noxious stimuli, including pain and temperature.

Specifically, the authors point to smooth muscle cells expressing the Trpv1 receptor...

A new biosealant therapy may help to stabilize injuries that cause cartilage to break down, paving the way for a future fix or — even better — begin working right away with new cells to enhance healing, according to a new animal-based study by researchers at the Perelman School of Medicine at the University of Pennsylvania. Their research was published in Advanced Healthcare Materials.

“Our research shows that using our hyaluronic acid hydrogel system at least temporarily stops cartilage degeneration that commonly occurs after injury and causes pain in joints,” said the study’s senior author, Robert Mauck, PhD, a professor of Orthopaedic Surgery and the director of Penn Medicine’s McKay Orthopaedic Research Laboratory...

A team of scientists has analyzed how microbes in the gut process the plant-based, sulfur-containing sugar sulfoquinovose. Their study discovered that specialized bacteria cooperate in the utilization of the sulfosugar, producing hydrogen sulfide. This gas has disparate effects on human health: at low concentrations, it has an anti-inflammatory effect, while increased amounts of hydrogen sulfide in the intestine, in turn, are associated with diseases such as cancer.

With the consumption of a single type of vegetable such as spinach, hundreds of chemical components enter our digestive tract. There, they are further metabolized by the gut microbiome, a unique collection of hundreds of microbial species...