Effect of vitamin C on fracture healing in elderly Osteogenic Disorder Shionogi rats.
We studied the effect of vitamin C on fracture healing in the elderly. A total of 80 elderly Osteogenic Disorder Shionogi rats were divided into four groups with different rates of vitamin C intake. A closed bilateral fracture was made in the middle third of the femur of each rat. Five weeks after fracture the femora were analysed by mechanical and histological testing. The groups with the lower vitamin C intake demonstrated a lower mechanical resistance of the healing callus and a lower histological grade. The vitamin C levels in blood during healing correlated with the torque resistance of the callus formed (r = 0.525). Therefore, the supplementary vitamin C improved the mechanical resistance of the fracture callus in elderly rats. If these results are similar in humans, vitamin C supplementation should be recommended during fracture healing in the elderly.
Alcantara-Martos
T
T
Hospital San Agustin, Avda de San Cristobal S/N, 23700 Linares, Jaén, Spain. toalma@telefonica.net
Delgado-Martinez
A D
AD
Vega
M V
MV
Carrascal
M T
MT
Munuera-Martinez
L
L
D000818:Animals; D001205:Ascorbic Acid / Q000008:administration & dosage* / Q000097:blood; D001206:Ascorbic Acid Deficiency / Q000473:pathology / Q000503:physiopathology; D001696:Biomechanical Phenomena; D019587:Dietary Supplements; D004195:Disease Models, Animal; D005260:Female; D005264:Femoral Fractures / Q000473:pathology / Q000503:physiopathology*; D005269:Femur / Q000473:pathology / Q000503:physiopathology; D017102:Fracture Healing / Q000187:drug effects* / Q000502:physiology; D051381:Rats; D011922:Rats, Mutant Strains; D013314:Stress, Mechanical; D014815:Vitamins / Q000008:administration & dosage*
D014815:Vitamins; D001205:Ascorbic Acid