A major health problem in older people is age-associated osteoporosis — the thinning of bone and the loss of bone density that increases the risk of fractures. Researchers have now detailed an underlying mechanism leading to that osteoporosis. When this mechanism malfunctions, progenitor cells stop creating bone-producing cells, and instead create fat cells. Knowledge of this mechanism can provide targets in the search for novel bone-loss.
Group A Streptococcus bacteria cause illnesses ranging from mild nuisances like strep throat to life-threatening conditions such as flesh-eating disease, also known as necrotizing fasciitis. Life-threatening infections occur when the bacteria spread underneath the surface of the skin or throat and invade the underlying soft tissue. Researchers have found two group A Streptococcus genes involved in invasive infections, which may be potential targets for therapeutics.
When a nitrogen atom is next to the space vacated by a carbon atom, it forms what is called a nitrogen-vacancy center. Now, researchers have shown how they can create more NV centers, which makes sensing magnetic fields easier, using a relatively simple method that can be done in many labs.
A new study demonstrated that people of normal weight tend to associate natural foods such as apples with their sensory characteristics. On the other hand, processed foods such as pizzas are generally associated with their function or the context in which they are eaten. But that’s not all. The research also highlighted the ways in which underweight people pay greater attention to natural foods and overweight people to processed foods.