Heart News (78 articles)

Using a new mathematical model of heart cells, University of Iowa investigators have shown how activation of a critical enzyme, calmodulin kinase II (CaM kinase), disrupts the electrical activity of heart cells. The study, which also involved Columbia University, was published online Dec. 3...

Published on 4 December 2009, 13:26

Categories: Calmodulin kinase II CaM kinase Cardiac electrical activity Enzymes Heart Oxidation

Scientists have identified the trigger that leads to the arteries becoming damaged in the disease atherosclerosis, which causes heart attacks and strokes, in research published today in the journal Circulation. The authors of the study, from Imperial College London, say their findings suggest...

Published on 1 December 2009, 06:28

Categories: Stroke Heart diseases Arteries Atherosclerosis TLR-2 Heart Inflammation Artery wall

Study provides first direct evidence of cigarette smoke's role in the death of transplanted heartsA study conducted at the University of Maryland School of Medicine in Baltimore provides the first direct evidence that cigarette smoke exposure prior to a heart transplant in either the donor,...

Published on 24 November 2009, 16:45

Categories: Tobacco Smoke Cigarette smoke Heart Transplantation Immune System Oxidative Stress Transplantation Medicine Smoking Cardiovascular diseases Heart

Two years after teens undergo bariatric surgery for morbid obesity, abnormalities in their hearts that put them at increased risk for heart attacks in adulthood were dramatically reduced, thanks to significant weight loss.A Cincinnati Children’s Hospital Medical Center study shows that the size...

Published on 24 November 2009, 08:06

Categories: Weight Loss Bariatric Surgery Obesity Teenage Heart Pediatrics Cardiology Left ventricle

ORLANDO — Researchers at Emory University and the Georgia Institute of Technology have developed microscopic polymer beads that can deliver an antioxidant enzyme made naturally by the body into the heart.Injecting the enzyme-containing particles into rats' hearts after a simulated heart...

Published on 16 November 2009, 17:13

Categories: Antioxidant Enzyme Enzymes Heart Superoxide Dismutase SOD Heart Attack Polyketals PLGA

Two large studies confirmed that an investigational, reversible anti-clotting medication failed to show greater effectiveness than clopidogrel or a placebo for patients undergoing a procedure to open blocked coronary arteries, according to researchers at the Duke Clinical Research Institute....

Published on 16 November 2009, 09:48

Categories: Anti-Clotting Medication Cangrelor Clopidogrel Coronary arteries Drugs Heart Ischemia-related Revascularization PCI

(Boston) - Researchers from Boston University School of Medicine (BUSM) have shown that fat collection in different body locations, such as around the heart and the aorta and within the liver, are associated with certain decreased heart functions. The study, which appears on-line in Obesity, also...

Published on 13 November 2009, 09:03

Categories: Medicine Obesity BMI Heart Aorta Liver

Animal Study Findings Could Point to More Precise Treatments for Atrial Fibrillation.PHILADELPHIA - While studying how the heart is formed, scientists at the University of Pennsylvania School of Medicine serendipitously found a novel cellular source of atrial fibrillation (AF), the most...

Published on 2 November 2009, 12:04

Categories: Heart Beat Atrial Fibrillation Heart AF DCT Pulmonary veins

CINCINNATI—New research from the University of Cincinnati shows that a common, over-the-counter pain salve rubbed on the skin during a heart attack could serve as a cardiac-protectant, preventing or reducing damage to the heart while interventions are administered.These findings are...

Published on 14 September 2009, 15:38

Categories: Capsaicin Heart Heart Attack Pain Cream Skin

June 29, 2009 -- Pig heart valves used to replace defective aortic valves in human patients failed much earlier and more often than expected, says a report from cardiac surgeons at Washington University School of Medicine in St. Louis. This is the first report to demonstrate this potential...

Published on 29 June 2009, 15:11

Categories: Cardiac surgery Heart Heart valves Pig heart valves

CINCINNATI—New research by a team of scientists at the University of Cincinnati shows that bisphenol A (BPA) may be harmful for the heart, particularly in women.Results of several studies are being presented in Washington, D.C., at ENDO 09, the Endocrine Society’s annual meeting, June...

Published on 10 June 2009, 16:43

Categories: BPA Bisphenol A Heart Estrogen

May 1, 2009- Researchers at the Johns Hopkins University School of Medicine have found that a chemical commonly used in the production of such medical plastic devices as intravenous (IV) bags and catheters can impair heart function in rats. Reporting online this week in the American Journal of...

Published on 1 May 2009, 15:49

Categories: Chemicals Medical Devices Heart Medicine

Sequence of transcription factors may drive process to repair damaged heartsSAN FRANCISCO, CA—April 26, 2009—Scientists at the Gladstone Institute of Cardiovascular Disease (GICD)have identified for the first time key genetic factors that drive the process of generating new heart...

Published on 27 April 2009, 04:47

Categories: Stem Cells Heart Cardiovascular Diseases Cell Biology

ANN ARBOR, Mich. — Can a grape-enriched diet prevent the downhill sequence of heart failure after years of high blood pressure?A University of Michigan Cardiovascular Center study suggests grapes may prevent heart health risks beyond the simple blood pressure-lowering impact that can come...

Published on 23 April 2009, 16:48

Categories: Blood pressure Diet Fruits Grapes Heart Heart failure Phytochemicals

Regular exercise is safe for heart failure patients and may slightly lower their risk of death or hospitalization, according to results from the largest and most comprehensive clinical trial to examine the effects of exercise in chronic heart failure patients. Supported by the National Heart,...

Published on 7 April 2009, 16:10

Categories: Exercises Heart Heart Failure

WINSTON-SALEM, N.C. – New research at Wake Forest University School of Medicine evaluated the link between a common class of drugs used to prevent bone fractures in osteoporosis patients and the development of irregular heartbeat.The study’s findings appear in the current issue of...

Published on 6 April 2009, 13:32

Categories: Osteoporosis Bones Drugs Heart Bisphosphonates

LIVERMORE, Calif. -- By using the amount of carbon 14 in the atmosphere from above-ground nuclear testing in the 1950s and 1960, researchers have determined that cells in the human heart develop into adulthood.But as humans age, the percentage of new heart cells decreases markedly. By age 25,...

Published on 2 April 2009, 13:41

Categories: Heart Attacks Heart Carbon 14 Atmosphere Myocardial damage

Results showed improved walking for participants in the nation’s largest CD34+ adult stem cell study CHICAGO – Preliminary data presented Saturday, March 28, as a late-breaking abstract at the American College of Cardiology's 58th annual scientific session from the largest...

Published on 30 March 2009, 16:48

Categories: Stem Cells Cardiovascular diseases Angina Heart Autologous

Disease Linked to Untreated Risk Factors in Second and Third Decades of Life As many as 1 in 100 black men and women develop heart failure before the age of 50, 20 times the rate in whites in this age group, according to new findings from the National Heart, Lung,...

Published on 19 March 2009, 09:23

Categories: Diseases Heart Heart Failure

Boston, MA - Defibrillators are commonly recommended to patients with heart failure to prevent sudden cardiac death, but there is a lack of criteria to identify the appropriate patients for this therapy beyond having heart failure due to systolic dysfunction. Researchers at Brigham and...

Published on 16 March 2009, 16:01

Categories: Defibrillators Heart Heart failure Treatments