Heart
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Researchers studying healthy centenarians have homed in on a gene mutation that plays a crucial role in maintaining cardiovascular health in old age. Across a series of experiments the researchers demonstrated how gene therapy could rejuvenate aging hearts.
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A new study is offering evidence expensive vitamin supplements may be a waste of money finding six common heart-health formulations are ineffective at reducing cholesterol levels or markers of inflammation.
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Ordinarily, pacemakers correct irregular heartbeats by delivering an electric shock to the entire heart – which can be painful. An experimental new one takes a different approach, and it does so by encompassing the heart with light-emitting "petals."
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A new study has demonstrated that an app designed to turn a smartphone into an electronic stethoscope can capture reliable, quality recordings of user heartbeats across the population, which could be used to remotely monitor heart conditions.
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Soft tissues don’t fossilize well, so scientists have to infer organ anatomy from bones. But an unexpected treasure trove of new information has been discovered in Australia, with a 380-million-year-old fish fossil preserving the oldest heart ever found.
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Scientists have demonstrated a new system that can restore crucial molecular and cellular functions in pigs one hour after death. The experiments could help widen the organ transplantation pool and may even lead to new treatments for heart attacks.
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Researchers have announced success from a pair of experimental pig-to-human heart transplant procedures completed on recently deceased human subjects who were kept on mechanical ventilation for three days while the organs were monitored in their bodies.
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A new article has offered insights into the world’s first pig-to-human heart transplant, which took place earlier this year. Researchers report the patient died unexpectedly two months after the procedure and the exact cause of death is still unclear.
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Researchers have demonstrated a new technique for helping heart cells regenerate after a heart attack, using mRNA to return the cells to a stem-cell-like state. Tests in mice showed drastic improvements to heart function a month after a heart attack.
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Last year, scientists at Northwestern University announced a transient pacemaker that dissolves when no longer needed. They've now improved the device, and incorporated it into a linked suite of wearable sensors.
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Scientists have demonstrated a novel approach to tackling arterial plaque that relies on laser, ultrasound and exploding microbubbles to destroy it with greater safety and efficiency, while hinting at unique long-term advantages.
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When conducting cardiac research, it would be ideal if experiments could be performed on actual living human hearts. Scientists have developed what may be the next-best thing, in the form of a tiny mechanical heart powered by real cardiac cells.
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