When the spinal cord is injured, the damaged nerve fibers — called axons — are normally incapable of regrowth, leading to permanent loss of function. An NIH-funded research project in mice is providing insight into why nerves fail to regrow following injury and shows that boosting energy levels within damaged nerves may help them heal.

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In this image: After an injury (see damage at the center of the image), nerve fibers (in red) regrow past the injury (right) when energy levels in the tissue are increased.

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Credit: National Institute of Neurological Disorders and Stroke, NIH

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