Washington, DC - Researchers at the National Institutes of Health have cured mice with Chuvash polycythemia, a life-threatening disorder that involves the overproduction of red blood cells. They treated the mice using Tempol, an experimental drug being studied for treatment of diabetes, cancer and other diseases. The findings offer hope that Tempol or a similar drug may treat polycythemias that affect humans, such as mountain sickness—a serious blood complication experienced in low-oxygen, high-altitude settings. The study appears in The Journal of Clinical Investigation.

Rochester, Minnesota - Calcium is important for bone health. The mineral is also a component of the plaque that develops in your heart arteries if you have atherosclerosis, or hardening of the arteries. Does this mean taking calcium increases your risk of heart disease and heart attack?

Washington, DC - Datasets characterizing individual cells in rheumatoid arthritis and systemic lupus erythematosus disease tissue from the Accelerating Medicines Partnership for Rheumatoid Arthritis and Systemic Lupus Erythematosus (AMP RA/SLE) Phase I study are now available to the research community. Scientists from across the biomedical research community can access the AMP RA/SLE datasets to explore important research questions about these autoimmune conditions.

Rochester, Minnesota - Encephalitis caused by the immune system attacking the brain is similar in frequency to encephalitis from infections, Mayo Clinic researchers report in Annals of Neurology.

Scottsdale, Arizona - Heart disease can be improved - or even prevented - by making certain lifestyle changes. The following changes can help anyone who wants to improve heart health:

Scottsdale, Arizona - Exercising at your target heart rate can boost the cardiovascular benefit of your workouts. It's the point at which your heart is being exercised and conditioned but not overworked. But how do you know if you're reaching the mark?