Johns Hopkins researchers have discovered that a drop in blood potassium levels caused by diuretics commonly prescribed for high blood pressure could be the reason why people on those drugs are at risk for developing type 2 diabetes. The drugs helpfully accelerate loss of fluids, but also deplete important chemicals, including potassium, so that those who take them are generally advised to eat bananas and other potassium-rich foods to counteract the effect.

Heart experts at Johns Hopkins have evidence that life-saving coronary angioplasty at community hospitals is safer when physicians and hospital staff have more experience with the procedure.

Naturally produced sex hormones may influence the risk and progression of atherosclerosis, or hardening of the arteries, Johns Hopkins researchers report in a recent study. The findings may help explain the increased risk men have of developing heart disease, which runs about twofold higher than women’s heart disease risk worldwide.

Taking a cue from the way drugs like Viagra put the biological brakes on a key enzyme involved in heart failure, scientists at Johns Hopkins have mapped out a key chemical step involved in blocking the enzyme.

Outstanding researchers in cardiovascular medicine will be honored in The Johns Hopkins Hospital Houck Lobby at 4 p.m., Wednesday, Nov.5, as part of the Johns Hopkins Heart and Vascular Institute’s annual awards ceremony named to commemorate the late Hopkins physician Stanley L. Blumenthal, B.A. ’39 and M.D. ’43.

In a 10-year study of more than a thousand kidney failure patients, sudden cardiac death emerged as the number one cause of death for patients on dialysis, according to a Johns Hopkins researcher. The study, already published online and appearing in the Nov. 2 issue of Kidney International, identified systemic inflammatory response and malnutrition as key risk factors for the fatal heart attacks.

A heart expert at Johns Hopkins is calling for all women with a waistline measuring more than 35 inches to get an annual check-up and detailed risk assessment for heart problems because excess abdominal fat, even in the mildly obese and overweight, leads more than a third of women to underestimate their lifetime risk of having a heart attack, stroke or chest pain (angina.)

The state Medical Examiner's Office cited cardiac arrhythmia, or abnormal heart rhythm,  as the cause of sudden death of 19 year-old U.S. Naval Academy student Kristen Dickmann.

Heart patients often experience lasting problems with memory, language, and other cognitive skills after bypass surgery. However, these problems aren’t caused by the surgery itself or the pump used to replace heart function during surgery, a new study by Johns Hopkins researchers suggests. The findings may lead to better approaches to prevent cognitive decline regardless of which treatment heart disease patients receive.

Volunteer heart experts at Johns Hopkins have embarked on what is believed to be the largest single-day event to date to screen young athletes in the United States for early signs of life-threatening defects in the body’s blood-pumping organ.

A pricy drug used to treat a rare but well-known genetic disorder may hold wider promise as a treatment for millions of Americans with potentially lethal enlarged hearts, due mainly to high blood pressure, a study from Johns Hopkins shows.

Heart specialists at Johns Hopkins and elsewhere report what is believed to be the first wide-scale evidence linking severe overweight to prolonged inflammation of heart tissue and the subsequent damage leading to failure of the body’s blood-pumping organ.

Long known for its role in preventing anemia in expectant mothers and spinal birth defects in newborns, the B vitamin folate, found in leafy green vegetables, beans and nuts has now been shown to blunt the damaging effects of heart attack when given in short-term, high doses to test animals.

An estimated one in 20 patients undergoing a common operation to boost blood supply to the heart and to ward off repeat heart attacks may do better if their surgeons also remold the heart to a near normal size, by cutting and suturing together stretched muscle and scar tissue resulting from the initial attack, according to cardiac surgeons at Johns Hopkins.