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Science News for March 17, 2019


Expansion of transposable elements offers clue to genetic paradox

A recent study reveals that transposable element insertions drive rapid phenotypic variation in plants, enabling them to adapt to novel environments. Researchers found that transposable elements are enriched in the gene promoter regions of a plant species with limited genetic variation, associated with changes in gene expression.

SourceChinese Academy of Sciences Headquarters·JournalProceedings of the National Academy of Sciences·DateMar 17, 2019

New cardiac pump clinically superior, safer for patients

The final results of MOMENTUM 3 show that the HeartMate 3 left-ventricular assist device markedly reduced re-operation due to pump malfunctions, lowering risk of bleeding events and strokes. The study found significant reductions in pump-related thrombosis, strokes and mucosal bleeding compared to the previous generation of cardiac pumps.

SourceBrigham and Women's Hospital·JournalNew England Journal of Medicine·DateMar 17, 2019

Low-risk patients benefit from minimally invasive transcatheter aortic valve replacement

Results from the PARTNER 3 trial demonstrate that low-risk patients with severe aortic stenosis can significantly benefit from minimally invasive TAVR, leading to shorter recovery times and lower complication rates. This groundbreaking procedure has the potential to transform treatment options for patients with heart disease.

SourceNorthwestern Memorial HealthCare·JournalNew England Journal of Medicine·DateMar 17, 2019