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.
The new version of GPT-3 is much better behaved (and should be less toxic)
OpenAI has trained its flagship language model to follow instructions, making it spit out less unwanted text—but there's still a way to go.
A horrifying new AI app swaps women into porn videos with a click
Deepfake researchers have long feared the day this would arrive.
We can’t afford to stop solar geoengineering research
It is the wrong time to take this strategy for combating climate change off the table.
Meet Altos Labs, Silicon Valley’s latest wild bet on living forever
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