LONDON, Feb. 17 (Xinhua) -- British scientists are developing a treatment
which could allow damaged nerve fibers to regenerate within the spinal cord.
Researchers from the University of Cambridge have identified a bacteria
enzyme called chondroitinase, which is capable of digesting molecules within
scar tissue to allow some nerve fibers to regrow, according to the BBC on
Sunday.
Spinal injuries are difficult to treat because the body cannot repair
damage to the brain or spinal cord. Nerves could regenerate, but they are
blocked by the scar tissue that forms at the site of the spinal injury.
The enzyme also promotes nerve plasticity, which potentially means that
remaining undamaged nerve fibers have an increased likelihood of making new
connections that could bypass the area of damage, said the report.
Preliminary tests show that combining chondroitinase with rehabilitation
produces better results than using either technique alone. However, trials have
yet to begin in patients.
"Chondroitinase offers us hope in two ways: firstly it allows some nerve
fibers to regenerate and secondly it enables other nerves to take on the role of
those fibers that cannot be repaired," lead scientist James Fawcett was quoted
as saying.
"Along with rehabilitation we are very hopeful that at last we may be able
to offer paralyzed patients a treatment to improve their condition," he added.
In Britain, there are more than 40,000 people suffering from spinal
injuries, which can cause anything from loss of sensation to full paralysis.