In what promises to be an eye-opener for many doctors and patients who routinely depend on cholesterol testing, a study led by researchers at the Johns Hopkins University School of Medicine found that the standard formula used for decades to calculate low-density lipoprotein (LDL) cholesterol levels is often inaccurate.

In a study of the impact of weight loss on reversing heart damage from obesity, Johns Hopkins researchers found that poor heart function in young obese mice can be reversed when the animals lose weight from a low-calorie diet.

An abdominal aortic aneurysm - a bulge in the large artery that carries blood away from the heart - can be immediately life-threatening if it grows large enough to rupture.

Researchers have found a genetic variant that doubles the likelihood that people will have calcium deposits on their aortic valve.

Researchers at the Johns Hopkins University School of Medicine and Sanford-Burnham Medical Research Institute in California have created a laboratory-grown cell model of an inherited heart condition known as arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C).