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Surgical procedure repairs severed nerves
Saturday February 04, 2012 05:06:35 PM,
IANS
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Washington: A
revolutionary surgical procedure could repair severed nerves
within minutes and set the patient firmly on the road to recovery
within mere days or weeks, reveals a study.
The study, led by researcher George Bittner, professor at
University of Texas, used a cellular mechanism similar to that of
many invertebrates to repair damage to axons, an extension of the
nerve cell that chats with other nerve cells or with muscles.
"We have developed a procedure which can repair severed nerves
within minutes so that the behaviour they control can be partially
restored within days and often largely restored within two to four
weeks," said Bittner, the Journal of Neuroscience Research
reported.
"If further developed in clinical trials this approach would be a
great advance on current procedures that usually imperfectly
restore lost function within months at best," added Bittner,
according to a university statement.
This research success arises from Bittner's discovery that nerve
axons of invertebrates severed from their cell body do not
degenerate within days, as happens with mammals, but can survive
for months, or even years.
"Severed invertebrate nerve axons can reconnect...within seven
days, allowing a rate of behavioural recovery that is far superior
to mammals," said Bittner.
Bittner's team were able to repair severed sciatic nerves in the
upper thigh, with results showing the rats were able to use their
limb within a week and had much function restored within two to
four weeks, in some cases to almost full function.
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