Nerve cells 're-grown' in rats after spinal injury

US scientists say they have made progress in repairing spinal cord injuries in paralysed rats.

Rats regained some bladder control after surgery to transplant nerve cells into the spinal cord, combined with injections of a cocktail of chemicals.

The study, published in the Journal of Neuroscience, could raise hopes for one day treating paralysed patients.

But UK experts say it will take several years of research before human clinical trials can be considered.

Scientists have tried for decades to use transplants of nerve cells to restore function in paralysed animals by bridging the gap in the broken spinal cord.

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