Promotion of fracture healing by vitamin E in rats.
We investigated the effects of the antioxidant alphae-tocopherol on early- and late-phase fracture healing in a rat model. Sixty male Sprague-Dawley rats were randomized into two groups. The right tibia of each rat was fractured manually under anaesthesia, and fracture sites fixed with intramedullary Kirschner wires. The alpha-tocopherol group received 20 mg/kg alpha-tocopherol intraperitoneally; the control group received intraperitoneal saline injections. Ten rats from each group were sacrificed on day 15, day 45 and day 60. In the alpha-tocopherol group, malondialdehyde concentrations, a measure of lipid peroxidation associated with oxygen free radicals, were significantly decreased on day 15 and day 45 compared with the control group, but had regained the 15-day value on day 60. On histopathological and radiological assessment, fracture healing on day 60 was significantly more advanced in the alpha-tocopherol group. We conclude that alpha-tocopherol has a positive effect on both early and late-phase fracture healing, and may be beneficial in clinical fracture
Turk
Cy
C
Department of Orthopaedics and Traumatology, Medical Faculty, Erciyes University, Kayseri, Turkey.
Halici
M
M
Guney
A
A
Akgun
H
H
Sahin
V
V
Muhtaroglu
S
S
D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D004912:Erythrocytes / Q000378:metabolism; D017102:Fracture Healing / Q000187:drug effects*; D008297:Male; D008315:Malondialdehyde / Q000097:blood; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley; D013977:Tibia / Q000033:anatomy & histology / Q000378:metabolism / Q000473:pathology*; D014810:Vitamin E / Q000008:administration & dosage / Q000494:pharmacology*
D000975:Antioxidants; D014810:Vitamin E; D008315:Malondialdehyde