9,900-year-old Mexican female skeleton distinct from other early American settlers

A new skeleton discovered in the submerged caves at Tulum sheds new light on the earliest settlers of Mexico, according to a study published February 5, 2020 in the open-access journal PLOS ONE by Wolfgang Stinnesbeck from Universität Heidelberg, Germany. Humans have been living in Mexico’s Yucatán Peninsula since at least the Late Pleistocene (126,000-11,700 years ago). … Read more

Genomics experts dispute nine genes linked to congenital heart condition

Geneticists and heart specialists around the world had previously reported 17 genes to cause long QT syndrome, a little-known inherited heart condition. However, the Clinical Genome Resource’s (ClinGen) expert panel has critically reevaluated the scientific evidence for all 17 reported genes, disputing nine of the genes and revealing only three of the genes to be definitively … Read more

Tendon stem cells could revolutionize injury recovery

The buildup of scar tissue makes recovery from torn rotator cuffs, jumper’s knee, and other tendon injuries a painful, challenging process, often leading to secondary tendon ruptures. New research led by Carnegie’s Chen-Ming Fan and published in Nature Cell Biology reveals the existence of tendon stem cells that could potentially be harnessed to improve tendon healing and … Read more

A step in a new direction

Dr. Michael Fehlings, a Senior Scientist at the Krembil Research Institute, and his research team have discovered a network of nerve cells that plays a key role in controlling our ability to walk. The group’s findings, published in Nature Neuroscience, challenge conventional perceptions of how the brain instructs and regulates the body while walking. Although walking may … Read more

Protein imaging at the speed of life

To study the swiftness of biology – the protein chemistry behind every life function – scientists need to see molecules changing and interacting in unimaginably rapid time increments – trillionths of a second or shorter. Imaging equipment with that kind of speed was finally tested last year at the European X-ray Free-Electron Laser, or EuXFEL. … Read more

Omega-3 shows protection against heart disease-related death, without prostate cancer risk

Should you take omega-3 pills? Or try to have two to servings of omega-3 rich fish a week, as the American Heart Association recommends? It may seem a bit murky if you follow headlines about nutrition and health. That’s why researchers at the Intermountain Healthcare Heart Institute continue to research the potential benefits and risks … Read more

3D printing, bioinks create implantable blood vessels

A biomimetic blood vessel was fabricated using a modified 3D cell printing technique and bioinks, which were formulated from smooth muscle cells from a human aorta and endothelial cells from an umbilical vein. The result is a fully functional blood vessel with a dual-layer architecture that outperforms existing engineered tissue and brings 3D-printed blood vessels … Read more