ScienceDaily: Heart Disease News

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Read current medical research on risk factors, causes and prevention of heart disease, strokes, and peripheral arterial disease. What new treatment options are under development?
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Yoga and aerobic exercise together may improve heart disease risk factors

Thu, 10/19/2017 - 10:09
Heart disease patients who practice yoga in addition to aerobic exercise saw twice the reduction in blood pressure, body mass index and cholesterol levels when compared to patients who practiced either Indian yoga or aerobic exercise alone, according to new research.
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Mouse studies shed light on how protein controls heart failure

Wed, 10/18/2017 - 09:02
A new study on two specially bred strains of mice has illuminated how abnormal addition of the chemical phosphate to a specific heart muscle protein may sabotage the way the protein behaves in a cell, and may damage the way the heart pumps blood around the body.
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Newborns with trisomy 13 or 18 benefit from heart surgery, study finds

Wed, 10/18/2017 - 09:02
Heart surgery significantly decreases in-hospital mortality among infants with either of two genetic disorders that cause severe physical and intellectual disabilities, according to a new study.
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High blood pressure linked to common heart valve disorder

Tue, 10/17/2017 - 15:31
For the first time, a strong link has been established between high blood pressure and the most common heart valve disorder in high-income countries.
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Saving hearts after heart attacks: Overexpression of a gene enhances repair of dead muscle

Tue, 10/17/2017 - 09:19
Biomedical engineers report a significant advance in efforts to repair a damaged heart after a heart attack, using grafted heart-muscle cells to create a repair patch. The key was overexpressing a gene that activates the cell-cycle of the grafted muscle cells, so they grow and divide more than control grafted cells.
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Physically active white men at high risk for plaque buildup in arteries

Mon, 10/16/2017 - 14:48
White men who exercise at high levels are 86 percent more likely than people who exercise at low levels to experience a buildup of plaque in the heart arteries by middle age, a new study suggests.
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Gestational diabetes and cardiovascular disease risk

Mon, 10/16/2017 - 12:21
A history of gestational diabetes was associated with a modest higher long-term risk of cardiovascular disease in women in a new study, although the absolute rate of cardiovascular disease was low in the study's younger group of predominantly white women and adhering to a healthy lifestyle over time appeared to help mitigate the risk, according to a new article.
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Blood pressure medication does not completely restore vascular function

Mon, 10/16/2017 - 08:32
Treatments for high blood pressure do not totally reverse its damaging effects on the vascular rhythms that help circulation of the blood say researchers.
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Men develop irregular heartbeat earlier than women; extra weight a factor

Mon, 10/16/2017 - 08:19
The onset of an irregular heartbeat jumps sharply in men after age 50 and in women after 60. The risk of developing the irregular rhythm known as atrial fibrillation rises with increasing age and weight. Having atrial fibrillation more than tripled the risk of dying during average 13-year study.
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Worms reveal secrets of aging

Fri, 10/13/2017 - 12:51
Investigators have identified a new molecular pathway that controls lifespan and healthspan in worms and mammals. Researchers have shown that worms with excess levels of certain proteins lived longer and healthier than normal worms. In addition, mice with excess levels of these proteins demonstrated a delay in blood vessel dysfunction associated with aging. The study has major implications for our understanding of aging and age-associated disorders.
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3D packaging of DNA regulates cell identity

Thu, 10/12/2017 - 15:18
The ability of a stem cell to differentiate into cardiac muscle (and by extension other cell types) depends on what portions of the genome are available for activation, which is controlled by the location of DNA in a cell's nucleus, new research suggests.
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Mitochondrial DNA could predict risk for sudden cardiac death, heart disease

Wed, 10/11/2017 - 12:13
The level, or 'copy number,' of mitochondrial DNA -- genetic information stored not in a cell's nucleus but in the body's energy-creating mitochondria -- is a novel and distinct biomarker that is able to predict the risk of heart attacks and sudden cardiac deaths a decade or more before they happen, researchers report.
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Tai chi holds promise as cardiac rehab exercise

Wed, 10/11/2017 - 09:17
The slow and gentle movements of Tai Chi -- which can increase in pace -- hold promise as an alternative exercise option for patients who decline traditional cardiac rehabilitation. The study is the first to suggest that Tai Chi may improve exercise behaviors in this high-risk group.
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Traumatic events take toll on the heart

Wed, 10/11/2017 - 09:17
Today it seems about everything has been shown to lead to heart disease. Of course smoking is bad for you, as is high blood pressure. There's even mounting evidence that psychosocial factors can cause heart problems. A new study demonstrates how traumatic experiences can affect vascular health and, ultimately, heart disease.
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New congenital heart disease genes uncovered

Mon, 10/09/2017 - 12:31
A new study has helped shed new light on some of the underlying genetic causes of cases of CHD as well as the long-term outlook for patients who carry these mutations.
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Fruit fly muscles with a hypertrophic cardiomyopathy mutation don't relax properly

Mon, 10/09/2017 - 08:43
Using fruit flies, researchers have figured out why a particular inherited human heart condition that is almost always due to genetic mutations causes the heart to enlarge, thicken and fail. They found that one such mutation interferes with heart muscle's ability to relax after contracting, and prevents the heart from fully filling with blood and pumping it out.
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Low serum calcium may increase risk of sudden cardiac arrest

Thu, 10/05/2017 - 14:18
In a new study, researchers found that individuals with lower levels of calcium in the blood, which is easily monitored, are more likely to experience SCA than those with higher calcium levels.
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How much can watching hockey stress your heart?

Thu, 10/05/2017 - 10:27
A new study suggests that both the thrill of victory and the agony of defeat can have a substantial effect on the cardiovascular system. Investigators took the pulse of fans during a hockey game and found that on average, their heart rate increased by 75 percent when watching on TV, and by a whopping 110 percent (more than doubled, equivalent to the cardiac stress with vigorous exercise) when watching in person.
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A need for bananas? Dietary potassium regulates calcification of arteries

Thu, 10/05/2017 - 10:27
Researchers have shown, for the first time, that reduced dietary potassium promotes elevated aortic stiffness in a mouse model. Such arterial stiffness in humans is predictive of heart disease and death from heart disease, and it represents an important health problem for the nation. The researchers also found that increased dietary potassium levels lessened vascular calcification and aortic stiffness. Furthermore, they unraveled the molecular mechanism underlying the effects of low or high dietary potassium.
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Advanced heart failure reversed in an animal model

Wed, 10/04/2017 - 14:01
Researchers have discovered a previously unrecognized healing capacity of the heart. In a mouse model, they were able to reverse severe heart failure by silencing the activity of Hippo, a signaling pathway that can prevent the regeneration of heart muscle.
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