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One-off injection may drastically reduce heart attack risk

Doctors in the US have announced plans for a radical gene therapy that aims to drastically reduce the risk of heart attack, the world’s leading cause of death, with a one-off injection.

The researchers hope to trial the therapy within the next three years in people with a rare genetic disorder that makes them prone to heart attacks in their 30s and 40s. If the treatment proves safe and effective in the patients, doctors will seek approval to offer the jab to a wider population.

“The therapy will be relevant, we think, to any adult at risk of a heart attack,” said Sekar Kathiresan, a cardiologist and geneticist at Harvard Medical School who will lead the effort. “We want this not only for people who have heart attacks at a young age because of a genetic disorder, but for garden variety heart attacks as well.”

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Treatment to restore natural heartbeat could be on the horizon for heart failure

A new therapy to re-engage the heart’s natural electrical pathways—instead of bypassing them—could mean more treatment options for heart failure patients who also suffer from electrical disturbances, such as arrhythmias, according to research led by the University of Chicago Medicine.

In a first-ever , called the His SYNC trial, researchers compared the effectiveness of two different cardiac resynchronization therapies, or treatments to correct irregularities in the heartbeat through implanted pacemakers and defibrillators. The current standard of care, known as biventricular pacing, uses two pacing impulses in both lower chambers, whereas the newer approach, called His bundle pacing, attempts to work toward engaging and restoring the heart’s natural physiology. The two approaches have never before been directly compared in a head-to-head clinical trial.

“This is the first prospective study in our field to compare outcomes between different ways to achieve cardiac resynchronization,” said cardiologist Roderick Tung, MD, FHRS, the Director of Cardiac Electrophysiology & EP Laboratories at the University of Chicago Medicine. “Through His bundle pacing, we’re trying to tap into the normal wiring of the heart and restore conduction the way nature intended. Previously, we have just accepted that we had to bypass it through pacing two ventricles at a time.”

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How a Woman’s Donated Body Became a Digital Cadaver | National Geographic

Follow the life, death, and groundbreaking 3D resurrection of Susan Potter whose body became a high resolution digital cadaver.
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Susan Potter knew in exquisite and grisly detail what was going to happen to her body after death. It seems that for the last 15 years of her life, she lived for Vic Spitzer, the scientist committed to fulfilling her dream of helping medical students become compassionate doctors. For the past 16 years, National Geographic has followed Potter’s life and death and her 3D resurrection to the highest resolution.

Experience the interactive story “Susan Potter Will Live Forever” featured in the special single-topic January 2019 issue of National Geographic: https://on.natgeo.com/2Ekgq1Z

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