A new gene therapy technique to grow bone from gum tissue may make life easier for patients who need bone grafts, by eliminating painful removal of bone from a donor’s hip.
R. Bruce Rutherford and colleagues at the University of Michigan School of Dentistry take a snippet of gum tissue and grow more cells in the lab. They then use recombinant virus to spike the cells with genes for factors that promote bone growth. Next, the researchers seed surgical gel with the treated cells, shape it to fit the area of the graft and implant it. The cells begin producing the growth factors, which prod surrounding bones to grow into the space, and even create new bone themselves. In tests on rats, large areas of bone removed from the animals’ skulls grew back in only one month.
Saudi Arabia plans to spend $1 billion a year discovering treatments to slow aging
The oil kingdom fears that its population is aging at an accelerated rate and hopes to test drugs to reverse the problem. First up might be the diabetes drug metformin.
Yann LeCun has a bold new vision for the future of AI
One of the godfathers of deep learning pulls together old ideas to sketch out a fresh path for AI, but raises as many questions as he answers.
The dark secret behind those cute AI-generated animal images
Google Brain has revealed its own image-making AI, called Imagen. But don't expect to see anything that isn't wholesome.
A quick guide to the most important AI law you’ve never heard of
The European Union is planning new legislation aimed at curbing the worst harms associated with artificial intelligence.
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