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Study: Spinal cord can repair itself

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posted on Feb, 15 2007 @ 12:20 PM
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Proven in Rats not humans but this is promissing:

U.S. scientists say they have disproved the long-held theory that the spinal cord is incapable of repairing itself. The Johns Hopkins University researchers say human nerve stem cells they transplanted into damaged spinal cords of rats have survived, grown and in some cases connected with the rats' own spinal cord cells.
n their experiments, the scientists gave anesthetized rats a range of spinal cord injuries to lesion or kill motor neurons or performed sham surgeries. They varied experimental conditions to see if the presence or absence of spinal cord lesions had an effect on the survival and maturation of human stem cell grafts. Two weeks after lesion or sham surgery, they injected human neural stem cells into the left side of each rat’s spinal cord.

After six months, the team found more than three times the number of human cells than they injected in the damaged cords, meaning the transplanted cells not only survived but divided at least twice to form more cells. Moreover, says Koliatsos, the cells not only grew in the area around the original injection, but also migrated over a much larger spinal cord territory.
Three months after injection, the researchers found evidence that some of the transplanted cells developed into support cells rather than nerve cells, while the majority became mature nerve cells. High-powered microscopic examination showed that these nerve cells appear to have made contacts with the rat’s own spinal cord cells.

Source: Johns Hopkins University

Imagine Mr hopkins taking abenefit from this later on if this is rewarding as it sounds!

posted on Feb, 15 2007 @ 12:23 PM
Other Cool research by this university:

Replicating an Eel's Nerve Circuitry May Aid Paralyzed People:

Image above:
"Researchers at Johns Hopkins are devising microchips to guide robotic legs as a first step in efforts to make an implant that could someday help paralyzed people walk again.
Photo by Will Kirk"

[edit on 2/15/2007 by a1ex]

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