[The effect of clioquinol on nerve fiber regeneration following nerve crush injury].

The effect of clioquinol on regeneration of myelinated fibers of the sural nerve in rats was studied. Clioquinol suspended in polyethylen glycol (300 mg/kg body weight/day, test) and polyethylen glycol only (control) were administered for 14 and 21 days starting 7 days before the nerve crush. The number of regenerating myelinated fibers was examined histologically at 7 and 14 days after the nerve crush. In the control and test groups the regenerating fibers reached between 0-5 mm point from the crushed point at 7 days. The regenerating fibers reached between 15-20 mm point in the control group and between 5-10 mm point in the test group at 14 days. The rate of regeneration of myelinated fibers in test rats was significantly reduced compared with control.