Impact of alendronate on bone resorption at the bone-screw interface / 中国临床药理学与治疗学
Chinese Journal of Clinical Pharmacology and Therapeutics
;
(12)2000.
Article
in Chinese
| WPRIM
| ID: wpr-562895
ABSTRACT
AIM:
To investigate the impact of alendronate on bone resorption of normal and ovariectomized rats at the bone-screw interface through radiographic and histologic findings.METHODS:
Thirty-two female Wister rats with a mean body weight of 332 g(287-351 g)were divided into four groups at random.Rats in group C and D were ovariectomized.8 weeks later,the proximal one-third of the left tibia of all rats were inserted into self-drilling mini cortical screws.After operations,alendronate were used in group A and C and saline were given in group B and D.The rats were euthanized at 5 weeks after screws having been attached.Radiographic and histologic findings subsequently were analyzed.RESULTS:
Radiographs confirmed that no osteolytic area was present around screws immediately after insertion,whereas 5 weeks after insertion,a wide and low-density area corresponding to the screw hole was evident in the saline groups compared with the alendronate groups.On histologic observation,the width of the fiber membrane and the number of TRAP-positive cells were decreased in the alendronate groups than those in the saline groups,and the difference was statistically significant.CONCLUSION:
Alendronate effectly inhibits bone resorption of either normal or ovariectomized rats at the bone-screw interface in rats.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Clinical Pharmacology and Therapeutics
Year:
2000
Type:
Article
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