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Higher risk of heart failure in cold weather, study suggests

A study found that cold temperatures and atmospheric pressure increases are associated with a higher risk of hospitalization and death in elderly patients with heart failure. The researchers suggest that elderly patients should avoid fog and low cloud weather in winter to prevent such events.

SourceElsevier·JournalEnvironment International·DateSep 26, 2017

New understanding of how muscles work

A new technique developed at McGill University has made it possible to study the behavior of individual sarcomeres in muscles. The researchers found that neighboring sarcomeres adjust to the activation of one single sarcomere, leading to a cooperative mechanism that is crucial for understanding muscle contraction.

SourceMcGill University·JournalProceedings of the National Academy of Sciences·DateAug 23, 2017

In utero exposure to diesel exhaust could be linked to adult heart failure

A new study published in The FASEB Journal reveals that gestational exposure to diesel exhaust can modify DNA in the developing embryo and increase susceptibility to adult heart failure. Researchers identified specific gene expression effects and DNA methylation changes that may play a role in mediating adult sensitivity to heart failure.

Age and obesity conspire to damage the tiny blood vessels that feed the heart, causing heart failure

A study found that age and obesity create a perfect storm that damages the tiny blood vessels that directly feed the heart muscle, leading to reduced blood flow and increased risk of heart failure. The inflammation caused by both factors thickens the walls of these microvasculature, making them less able to dilate and sustain the heart.

Temple researchers identify novel mechanism underlying efficacy of common heart failure drug

Researchers at Temple University have identified a novel mechanism underlying the efficacy of common heart failure drug beta-blockers. The study reveals that dysfunctional beta-adrenergic receptor 3 and decreased levels of cardioprotective phospholipid sphingosine 1-phosphate contribute to treatment resistance in some patients.

SourceTemple University Health System·JournalJournal of the American College of Cardiology·DateJul 3, 2017

Study of 3.5 million people shows 'healthy' obese people are still at higher risk of cardiovascular disease events than the general population

A study of 3.5 million people found that 'metabolically healthy' obese individuals have a higher risk of cardiovascular disease events, including heart failure and stroke, compared to normal-weight individuals with no metabolic abnormalities. The study also showed that the risk of CVD events increases with the number of metabolic abnor...

Heart failure is as 'malignant' as some common cancers

A new analysis reveals heart failure patients experience worse survival rates than prostate cancer and breast cancer survivors, but better outcomes compared to lung cancer and ovarian cancer. The study highlights the continued burden of heart failure as a major public health concern.

SourceWiley·JournalEuropean Journal of Heart Failure·DateMay 4, 2017

Death rate higher in women than men after discharge from emergency departments for heart arrhythmias

A study published in the Canadian Journal of Cardiology found that women with atrial fibrillation/flutter experienced higher death rates than men 30 and 90 days after discharge from emergency departments. The study analyzed data from 21,062 patients and identified differences in outcomes between male and female patients.

SourceElsevier Health Sciences·JournalCanadian Journal of Cardiology·DateMay 3, 2017