Repair within the first 48 h in the treatment of acute Achilles tendon ruptures achieves the best biomechanical and histological outcomes.

Purpose: To compare the biomechanical and histological properties of Achilles tendons repaired at different time points during the acute injury period.

Methods: Thirty-six skeletally mature Sprague-Dawley rats underwent bilateral mid-substance Achilles tenotomy. The Achilles tendons were repaired either in the first 24 h (group 1), 24-48 h (group 2), 48-72 h (group 3), or > 72 h (mean: 120 ± 5.

Ultrastructure of rat pup's Purkinje neurons whose mothers were exposed to ethanol during pregnancy and lactation.

This study was intended to investigate the effects of alcohol on the ultrastructure of fetal cerebellar Purkinje cells. Twelve adult female rats of Sprague-Dawley species were utilized. Control and experiment groups were formed.