Cut Nerve Fibers Are Repaired In An Animal Model of Spinal Cord Injury; May Help Repair Nerve Damage In Humans

WASHINGTON, D.C. April 1 -- Scientists have found success in animals with a promising new way to rejoin severed nerves quickly.

"The technique rejoins the cut or crushed ends of severed central and peripheral nerve cells so that the repaired cells again conduct electrical signals through the severed area within seconds to minutes after they are rejoined," says George Bittner, Ph.D., of the University of Texas at Austin. The central nervous system (CNS) includes the brain and spinal cord; the peripheral nervous system (PNS) includes nerves found in the rest of the body.

Several hundred thousand central and peripheral nervous system injuries occur annually in the United States, primarily due to trauma and stroke. There is currently no technique in humans or other mammals which can repair severed nerves in the brain or spinal cord or speed up the repair of severed peripheral nerves.

"The technique opens up a completely novel approach to restoring physiological continuity in the injured nervous system," says Michael Selzer, M.D., Ph.D., a neurologist at the University of Pennsylvania.

Bittner's study, funded in part by the National Institutes of Health, is published in the April 1 issue of The Journal of Neuroscience.

Nerve cells possess axons, extensions that transmit electrical signals over long distances in the body. When these biological transmission lines are cut, their electrical signals can no longer be transmitted. Nerve cells in mammals, including humans, usually cannot regenerate axons that are severed in the CNS. At present, the functions once controlled by those axons cannot be restored. Severed PNS axons regenerate very slowly, about one millimeter or 1/25th of an inch per day.

In the new study, Bittner and his colleagues applied a calcium-free solution of polyethylene glycol (PEG) for one to two minutes to the cut ends of severed axons. PEG causes the cell membrane

Contact: George Bittner, Ph.D.
Society for Neuroscience

Page: 1 2 3

Related medicine news :

1. Nerve damage from alcoholism reversed after liver transplantation
2. Nerve navigation findings prompt new direction for spinal cord research
3. Vagus Nerve Stimulation Therapy (TM) more effective in epilepsy patients when used earlier
4. Nerve Cells Live Long And Talkative Lives In Sculpted Colonies On Silicon Chips
5. Percutaneous Electrical Nerve Stimulation May Offer Dramatic Short-Term Relief For Chronic Back Pain
6. Hunter College Biologist Marie Filbin Identifies Mechanism That Blocks All Inhibitors Of Nerve Regeneration; Breakthrough Reported In Neuron Magazine
7. Electrical Nerve Stimulation May Help Reduce Chronic Pain In Cancer Patients, Say UT Southwestern Researchers
8. Nerve Agent Sensor A Million Times More Sensitive
9. Study Shows Potential For Quelling AIDS Nerve Pain
10. Animal study shows link between nicotine and atrial flutter
11. Animal studies show stem cells might make biological pacemaker

Post Your Comments:

(Date:9/17/2019)... , ... September 17, 2019 , ... ... availability of the newly updated International Audit Protocol Consortium (IAPC) EHS audit protocol ... protocols to understand the scope of their EHS regulatory obligations and rapidly collect, ...
(Date:9/14/2019)... ... September 13, 2019 , ... ... studies on the detection and treatment of infectious diseases at its annual ... studies were noninvasive detection of residual HIV infected cell persistence and the ...
(Date:9/11/2019)... , ... September 11, 2019 , ... A September 2 ... had undergone weight loss surgery were significantly less likely to suffer heart attacks, strokes, ... not undergo bariatric surgery. Los Angeles-based weight loss surgery specialists Dr. Feiz and Associates ...
(Date:9/11/2019)... ... , ... Autopsies don’t lie. They report the causes of death as ... harms the heart. It increases risks of heart attack and death. Autopsies ... damage occurs. , An August 1, 2019 article in U.S. News ...
(Date:9/11/2019)... (PRWEB) , ... September 10, 2019 , ... ... to the team. Dr. Hesano is an understanding, caring and highly skilled Obstetrician/Gynecologist. ... high-risk obstetrical medicine. Dr. Hesano strives to ensure that each visit is comfortable, ...
Breaking Medicine News(10 mins):
(Date:9/17/2019)... Calif. (PRWEB) , ... September 17, 2019 , ... Summer is a time for barbecues, ... is good for our teeth and gums. Dr. Douglas Ng, family dentist in San ... weather is the time for ice cream, and popsicles and ice-filled cold drinks to go ...
(Date:9/14/2019)... ... 13, 2019 , ... Corey Stern , a partner at Levy Konigsberg, ... Archibald over at least 3 decades while employed by Rockefeller University Hospital (“RUH”). ... Court - Southern District of New York, No. 1:19-cv-01403), the first case filed against ...
(Date:9/14/2019)... ... September 14, 2019 , ... On ... with peritoneal mesothelioma, a jury in Middlesex County found Johnson & Johnson liable ... alleging their mesotheliomas were caused by asbestos-containing J&J talc products. , ...
Breaking Medicine Technology:
Cached News: