Parents of millennials still living at home aren't the only ones with children that refuse to leave. Many animal species have adult offspring that are slow to take flight, but when and how they leave has been poorly understood by scientists. Now, new research on a desert-dwelling African bird is yielding some answers.
Diets rich in mono-unsaturated fats from plants may lower the risk of death from heart disease and other causes. The largest reductions in the risk of death were found when healthy fats from plant sources replaced saturated fats, trans fats and refined carbohydrates.
Online gift-giving is spreading in social networks and causing people to give more gifts -- online and in person -- according to a new study. About half of these gifts were unlikely to have occurred offline or via another online channel.
Severe traumatic injuries to the cranium have been challenging to heal due to the large missing bone volume. Typically, metal or plastic implants are used. But, these implants can take a long time to be customized for fit and often take a longer than desired time to support bone fixation. This can often lead to multiple revision surgeries if the defect is not properly healed. Moreover, the tissue that adjoins the implant can improperly heal. For the effective treatment of these defects and injuries, it is necessary to reduce the time and improve the accuracy of implantable bone scaffold substitutes. Further, the microarchitecture and materials chemistry of the scaffold must enhance tissue regeneration and growth to hasten the healing process.
The face of American forests is changing, due to climate change-induced shifts in rainfall and temperature that are causing shifts in the abundance of numerous tree species, according to a new article. The result means some forests in the eastern U.S. are already starting to look different, but more important, it means the ability of those forests to soak up carbon is being altered as well, which could in turn bring about further climate change.
Researchers have sequenced the genomes of five Neandertals that lived between 39,000 and 47,000 years ago. These late Neandertals are all more closely related to the Neandertals that contributed DNA to modern human ancestors than an older Neandertal from the Altai Mountains that was previously sequenced. Their genomes also provide evidence for a turnover in the Neandertal population towards the end of Neandertal history.
An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers report that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.
In the largest study of its kind, genetic changes causing neurodevelopmental disorders have been discovered. The study of almost 8,000 families found for the first time that mutations outside of genes can cause rare developmental disorders of the central nervous system. The study is a positive step towards providing an explanation for children with undiagnosed neurodevelopmental disorders.
A resurgence of mumps in the US among vaccinated young adults appears to be due to waning of vaccine-induced immunity, according to a recent analysis. Researchers found vaccine-derived immune protection against mumps lasts about 27 years after the last dose. The findings suggest that, in addition to the currently recommended two doses of mumps vaccine in childhood, a third dose at age 18 may help sustain protection.
Immune cells called microglia can completely repopulate themselves in the retina after being nearly eliminated, according to a new study in mice. The findings point to potential therapies for controlling inflammation and slowing progression of rare retinal diseases such as retinitis pigmentosa (RP) and age-related macular degeneration (AMD).
Mexican cavefish have insulin resistance, a hallmark of many human metabolic disorders and a precursor to type 2 diabetes that can lead to an overworked pancreas, excess fat storage and chronically elevated blood sugar. Despite dysregulated blood sugar, the fish don't suffer the same health consequences people do. Study offers a fresh opportunity to understand how animals thrive with traits that sicken humans and could point the way to new interventions for disease.
Researchers found that obesity increases the liver's production of an enzyme that triggers inflammation in belly fat. Targeting the enzyme in the liver could present a new way to treat type 2 diabetes.
A team of seismologists has developed a new measurement of seismic energy release that can be applied to large earthquakes. It provides a measure of earthquake rupture complexity that better captures variations in the amount and duration of slip along the fault for events that may have similar magnitudes.