Effect of different-intensity SEMFs on bone mineral density and histomorphometry in SD rats / 中国骨伤
China Journal of Orthopaedics and Traumatology
;
(12): 933-937, 2014.
Article
Dans Chinois
| WPRIM
| ID: wpr-249251
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effects of different-intensity sinusoidal electromagnetic fields (SEMFs) on bone mineral density (BMD) and histomorphometry in SD rats.</p><p><b>METHODS</b>Thirty female SD rats were randomly divided into three groups group A (a control group), group B (0.1 mT group) and group C (0.6 mT group). The rats in group B and C were exposed to 50 Hz SEMFs 3 hours each day. However,the magnetic intensity was different between group B and group C0.1 mT for group B and 0.6 mT for group C. After 8 weeks, all the animals were killed. Changes of BMD and histomorphometric properties were observed.</p><p><b>RESULTS</b>Compared with group A, the BMD of whole body, femur and vertebrae of rats in group B increased significantly; the area percentage, number and width of bone trabeculae in vertebrae and femur of rats in group B were larger than those of group A; but the resolution of bone trabeculae of rats in group B was lower than that of group A. The trabecular number in group C rats were significantly decreased, compared with that in group A rats. The outcome of double fluorescence labeling in group B was found to be significantly different with that in group A. But the difference between rats in group A and C was not significant.</p><p><b>CONCLUSION</b>This study demonstrates that 50 Hz 0.1 mT SEMFs can increase BMD, improve bone tissue microstructure and, promote bone formation.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Ostéogenèse
/
Anatomopathologie
/
Effets des rayonnements
/
Tibia
/
Densité osseuse
/
Rat Sprague-Dawley
/
Champs électromagnétiques
/
Vertèbres lombales
Limites du sujet:
Animaux
langue:
Chinois
Texte intégral:
China Journal of Orthopaedics and Traumatology
Année:
2014
Type:
Article
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