In a match-up of Japan's top drug-releasing stent and a new device featuring a biodegradable coating, the newcomer delivered statistically comparable one-year results, according to new data.

The new Sapien XT aortic valve showed a non-significantly lower rate of death and strokes at 30 days than the original model, and both valves demonstrated notably better short-term outcomes than seen with the Sapien system in PARTNER I, according to the first results from the PARTNER II study.

High doses of a popular cholesterol-lowering drug significantly reduced the rate of acute kidney injury caused by dye used in imaging in acute coronary syndrome patients who underwent a coronary procedure, according to new research. This group of patients is at high risk for kidney damage related to contrast agents used in imaging tests.

In recent years, the notion that there is a single mechanism by which antibiotics wipe out bacteria has permeated the field of microbiology. Now, new research questions that hypothesis.

Investigators have described what may be a newly identified disease that appears to explain some cases of widespread chronic pain and other symptoms in children and young adults.

Scientists have developed a novel assembly solution for facilitating heterozygous genomes research.

A recent clinical trial found that interferon²-1a (INF) and glatiramer acetate (GA), two of the most commonly prescribed drugs for multiple sclerosis (MS), provide no additional clinical benefit when taken together. While findings suggest that taking both INF and GA together was not superior to GA monotherapy in reducing relapse risk; the combination therapy does appear to reduce new lesion activity and total lesion volume.

Has your paternal or maternal grandfather broken their hip on any occasion? In that case there is a greater risk that your own bones are more fragile as an adult. This has been demonstrated in a study of over 1,000 young adults, which identified those factors increasing the risk of bone fragility in men.

Researchers have been using bioinformatics techniques to probe the world of proteins for answers to questions about the origins of life. 

Drinking just two cups of coffee a day is associated with the risk of low birth weight, according to a study on 59,000 women.

When people are denied the chance to cheat or steal, they get frustrated -- and turn to violent video games for release.

Like nearly 4.6 million Americans, ancient hunter-gatherers also suffered from clogged arteries, revealing that the plaque build-up causing blood clots, heart attacks and strokes is not just a result of fatty diets or couch potato habits.

A new study has found that women who take aspirin have a reduced risk of developing melanoma -- and that the longer they take it, the lower the risk. The findings suggest that aspirin's anti-inflammatory effects may help protect against this type of skin cancer.

Studies show that the protein receptor Mer is overexpressed in many leukemias, and that inhibition of this Mer receptor results in the death of leukemia cells -- without affecting surrounding, healthy cells.

Once the initial episode of influenza has passed, the chronic effects tend to be overlooked. The results of a new study indicate that the cytokine interleukin-22 (IL-22) plays a critical role in normal lung repair following influenza infection.

Researchers have found that a commonly used drug to treat anemia in heart failure patients -- darbepoetin alfa -- does not improve patients' health, nor does it reduce their risk of death from heart failure.

For years, researchers have developed thin films of bismuth telluride (Bi2Te3) -- which converts heat into electricity or electricity to cooling -- on top of gallium arsenide (GaAs) to create cooling devices for electronics. But while they knew it could be done, it was not clear how -- because the atomic structures of those unlikely pair of materials do not appear to be compatible. Now researchers have solved the mystery, opening the door to new research in the field.

Good news for the ozone layer above the Arctic. The Montreal Protocol is showing effects: according to recent measurements, the ozone layer over the North Pole should recover by the end of the century.

Strokes are the most common cause of physical disability among the elderly. This often result in paralysis of one side of the body, and many patients suffer much reduced physical mobility and are often unable to walk on their own. Scientists are currently developing a robotic system designed to help stroke patients re-train their bodies.

Roughnecks working on oil and gas installations in the Arctic need clothes that monitor the health. Research scientists are developing a jacket with built-in sensors. It will monitor both body temperature and workers’ activity, and may become a useful tool for supporting decision-making.