Abstract
We performed morphologic studies on the progression of regeneration in cat hind limb nerves after acute ischemic injury. None of the damaged nerve trunks showed a major increase in endoneurial connective tissue. Despite this fact, regeneration of nerve with transfascicular infarct was far from complete even 16 months after injury as manifested by a striking increase in the small myelinated fibers (MF) number and decrease in large MF number. Restoration of infarcted nerves was less complete than that previously reported after a nerve crush. Changes in the necrotic nerve segment and difficulty in making target contact with muscle and other tissues damaged by ischemia may be limiting factors in the regeneration of infarcted nerves.
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