(H/T – Kevin Binversie)
ScienceDaily reports that researchers at a Big Ten university found a way to do the naturally-impossible using stem cells – create new cartilage in adults:
Northwestern University researchers are the first to design a bioactive nanomaterial that promotes the growth of new cartilage in vivo and without the use of expensive growth factors. Minimally invasive, the therapy activates the bone marrow stem cells and produces natural cartilage. No conventional therapy can do this….
Damaged cartilage can lead to joint pain and loss of physical function and eventually to osteoarthritis, a disorder with an estimated economic impact approaching $65 billion in the United States. With an aging and increasingly active population, this is expected to grow….
Type II collagen is the major protein in articular cartilage, the smooth, white connective tissue that covers the ends of bones where they come together to form joints.
“Our material of nanoscopic fibers stimulates stem cells present in bone marrow to produce cartilage containing type II collagen and repair the damaged joint,” Shah said. “A procedure called microfracture is the most common technique currently used by doctors, but it tends to produce a cartilage having predominantly type I collagen which is more like scar tissue.”
The Northwestern gel is injected as a liquid to the area of the damaged joint, where it then self-assembles and forms a solid. This extracellular matrix, which mimics what cells usually see, binds by molecular design one of the most important growth factors for the repair and regeneration of cartilage. By keeping the growth factor concentrated and localized, the cartilage cells have the opportunity to regenerate.
As Kevin noted, embryonic stem cells are (once again) not involved. Why do I get the feeling that UW backed the wrong end of stem-cell research?
Now if researchers can grow spines for implantation in Congressional Republicans, then we’re talk progress.
You assume that the average Congressional Pubbie wants a spine. Do remember what they say about assumptions.
Point taken, although I think it’s a safe assumption that your typical Congress Critter wants to stay at his or her post. Given the continued disillusionment in the country with the Obama-Pelosi-Reid triumvirate, standing up to the powers-that-be may ironically be the safest thing a politician can do for the upcoming election cycle. It reminds me of Stalin’s quote, “It takes a brave man to be a coward in the Red Army.” Except, it would take a very brave Democrat to continue on the suicidal course of this last year. And Obama doesn’t strike me as a general who leads from the front.