Aldosterone is a steroid hormone made by the adrenal cortex (the outer layer of the adrenal gland). It helps control the balance of water and salts in the kidney by keeping sodium in and releasing potassium from the body. Too much aldosterone can cause high blood pressure and a build-up of fluid in body tissues. Aldosterone is a type of mineralocorticoid hormone.
Using new techniques for resurrecting ancient genes, scientists have for the first time reconstructed the Darwinian evolution of an apparently "irreducibly complex" molecular system.
A new model developed at the University of Washington provides an accurate estimate of one-, two-, and three-year survival rates and average years of survival for patients with heart failure.
New research at UT Southwestern Medical Center shows that on a biochemical level, hormone-like molecules in tiny worms called nematodes work similarly to the way in which certain hormones work in humans - findings that one day may help eradicate worm infections that afflict a third of the world's population.
Researchers have linked a hormone known to adjust levels of key brain chemicals to the quality of our hearing as we age. The more of the hormone that older people have in their bloodstream, the better their hearing is, and the less of the hormone, the worse their hearing is.
A bi-polar hormone that can contribute to strokes and minimize their damage is emerging as a therapeutic target in the battle against these brain attacks, researchers say.
Scientists at Wake Forest University School of Medicine have created a better research rat – the first to enable them to study how declining estrogen after menopause can affect hypertension, heart failure and kidney damage.
During the last ten to 15 years, treatment of CHF has been dramatically improved by pharmacological therapy and devices. Treatment also has become more complicated.
In the first thirty days following a heart attack, one in three deaths among patients with signs of heart failure may be preventable by early treatment with a drug called eplerenone (Inspra, Pfizer Ltd), according to new data published in the Journal of the American College of Cardiology (JACC).
Oral Hormone Replacement Therapy (HRT) seems to have a beneficial impact on cardiovascular health in hypertensive postmenopausal women, researchers reported at the American Society of Hypertension Twentieth Annual Meeting held in San Francisco.
Patients who have had a recent heart attack with ST-elevation (ST-Elevation Myocardial Infarction, or STEMI), complicated by heart failure should be treated with aldosterone blockers according to new guidelines issued recently by the American College of Cardiology (ACC) and the American Heart Association (AHA).
Some patients with hypertension or other cardiovascular diseases should be closely monitored in order to maintain safe potassium levels in the body when prescribed certain medications, counsels a nephrologist at UT Southwestern Medical Center at Dallas.
Government and private sector health experts now estimate that 65 percent of America’s adults are overweight and 31 percent of adults are obese and at risk for chronic diseases such as diabetes and hypertension. The link between obesity and hypertension is well known, but the exact nature of the association between the two disorders remains unclear.
The small study found that endothelial function is abnormal in eye blood vessels of patients who have early-stage hypertension, but that treatment with an angiotensin-receptor blocker (ARB) drug improves endothelial function. The endothelium is the lining of vessel walls and plays a key role in the vessels’ ability to relax and to constrict.