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Watch Paralyzed Dogs Walk Again After Nose Cell Transplants

• Rebecca Boyle via

For the past few years, scientists at Cambridge University have been working with dogs who were paralyzed in accidents to test therapies and new cell treatments that reverse the damage. A new study shows that their methods can work, restoring dogs' ability to walk by using cells grown from the lining of the animals’ noses. In the study, 23 dogs with transplanted cells were able to walk again.

These are called olfactory ensheathing cells, and they surround olfactory neurons that allow us to smell. These are the only part of the body where nerve cells continually regenerate in adults, and as such they’ve long been a promising target for scientists studying nerve injuries--especially spinal cord injuries, as the BBC points out. This is the first study to use them in animals with real-life injuries, rather than animal models of paralysis.

The trial involved 34 pet dogs, 23 of which received the treatment and 11 of which didn’t, serving as controls. The 23 dogs in the study had olfactory ensheathing cells removed from their inner noses, and the cells were multiplied and refined in a lab. Then the animals had them injected into the sites of their injuries. Many of the dogs that received the transplant saw improvement in their ability to walk, the BBC reports. None in the control group regained the use of their hind legs.

In this video, Jasper the dachshund can't use his hind legs at the start of the trial. After the injection, he can walk with all four legs and has a huge smile on his face.

Jasper's owner, May Hay, said before the trial, Jasper was unable to walk at all.

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