In cells, proteins tightly package the long thread of DNA into pearl necklace-like complexes known as chromatin. Scientists now show for the first time how chromatin moves, answering longstanding questions about how its structure helps regulate gene expression.
Seasonal flu viruses continually undergo mutations that help them evade the human immune system, but some of these mutations can reduce a virus's potency. According to new research, certain mutations in the genome of influenza A may help counteract the weakening effects of other mutations.
Neurons in mice afflicted with the genetic defect that causes Fragile X syndrome (FXS) appear similar to those in healthy mice, but these neurons fail to interact normally, resulting in the long-known cognitive impairments, shows a new study.
In what is being described as 'The Teddy Roosevelt effect,' a deadly fungus in the Pacific Northwest may have arrived from Brazil via the Panama Canal, according to a new study. Cryptococcus gattii -- which until a 1999 outbreak in British Columbia's Vancouver Island was considered primarily a tropical fungus -- can cause deadly lung and brain infections in both people and animals.
In a scientific first, researchers have turned skin cells from mice into stem cells by activating a specific gene in the cells using CRISPR technology. The innovative approach offers a potentially simpler technique to produce the valuable cell type and provides important insights into the cellular reprogramming process.
Scientists have shown in the laboratory that an inhibitor can be developed to break down the herpes virus. Kaposi's sarcoma-associated herpes virus, or KSHV, is one of two viruses known to cause cancer in humans.
Sports scientists have found that the performance enhancing benefits of caffeine are more apparent in athletes who do not drink caffeine-rich drinks such as tea, coffee, and energy drinks on a daily basis.
Viruses are the most abundant and one of the least understood biological entities on modern Earth. They might also exist in space, but as of yet scientists have done almost no research into this possibility. Portland State University’s Professor Ken Stedman and co-authors hope to inspire integration of virus research into astrobiology. Viruses are an [...]
Researchers have devised new methods to create interesting input states for quantum computations and simulations. The new methods can be used to simulate certain electronic systems to arbitrarily high accuracy.
Americans believe they have less stamina for strenuous mental activity than their European counterparts -- an indication that people in the US perceive their willpower or self-control as being in limited supply, suggests a new study.
A new study found that women who took a specially prepared blend of minerals and nutrients for a month saw their 3-mile run times drop by almost a minute. The women who took the supplement also saw improvements in distance covered in 25 minutes on a stationary bike and a third test in which they stepped on and off a bench, according to new research.
The results from the largest ever study of septic shock could improve treatment for critically ill patients and save health systems worldwide hundreds of millions of dollars each year. Researchers studied whether the use of steroids as an additional treatment to septic shock -- a severe life threatening infection -- would improve survival.
Animal carnivores living in and around human habitation are declining at an unprecedented rate -- but they may provide crucial benefits to human societies. Researchers have revealed that predators and scavengers ranging from bats to leopards and vultures are valuable to human health and well-being.
Scientists have discovered insights for a possible new therapy for eczema that also reduces the severity of asthma. The findings are an important next step in understanding the relationship between the two inflammatory diseases and to developing effective therapies.
Using data from NASA’s Cassini spacecraft, a team of planetary researchers led by Cornell University has produced a new global topographic map of Titan, the largest moon of Saturn. The new map, described in two papers in the December 16 issue of the journal Geophysical Review Letters, combines all of the Titan topography data from [...]