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BOSTON - Physical activity that conforms to medical and health association guidelines is associated with a lower risk of atrial fibrillation (Afib) and stroke, according to a study by researchers at Massachusetts General Hospital (MGH), who analyzed nearly 100,000 individuals equipped with wrist-worn accelerometers to measure their movement. The researchers findings suggest that data from wearables, including a new generation of devices with sensors that allow for Afib detection, could provide an opportunity for the public health community to promote moderate physical activity as an effective way to improve health outcomes. The study was published in the Although some population-based studies have observed a lower risk of atrial fibrillation with exercise, the link has remained inconclusive in part because those studies relied on self-reporting by participants, a less than exact science, says senior author Steven Lubitz, MD, MPH, an investigator in the Division of Card
/PRNewswire/ NEJM Group, in collaboration with Education Management Solutions (EMS), today launched NEJM Healer an online learning application to teach.
Cilia are Discovered to be Crucial to the Lymphatic System
In recent years, researchers have been learning more about why cellular antennas called cilia are so important. Cilia can act as sensors of the cell s environment and can send and receive signals. Dysfunction in these structures have been associated with many different diseases, which are sometimes referred to as ciliopathies. More and more cells are being found to have cilia, and they are being connected with more aspects of human physiology.
Scientists have now found that in humans and mice, cells called lymphatic endothelial cells (LECs), which line the inside and outside of lymphatic vessels, have primary cilia. The primary cilia on LECs may be playing a crucial role in the development and maintenance of the lymphatic network throughout life as the network responds to wounds and cancer. In a mouse model, the researchers found that when primary cilia don t form on LECs, the lymphatic vessels will grow too much in certain
Researchers have, for decades, tried to catalogue racial disparities and identify what causes them. The first part of that task turns out to be the easy part. National records of heart disease, cancer, stroke and diabetes all tell the same grim story about a disproportionate harm to Black people in the United States. But only part of those statistics can be directly traced to