Journal
BRITISH JOURNAL OF ORAL & MAXILLOFACIAL SURGERY
Volume 48, Issue 8, Pages 633-636Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.bjoms.2009.11.009
Keywords
TP508; Thrombin peptide; Distraction osteogenesis; Rat; Tibia
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Funding
- Istanbul University [T-949/06102006]
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We aimed to find out whether a single local injection of two different doses of thrombin peptide 508 (TP508) could accelerate consolidation of bone in sites of tibial distraction osteogenesis in rats. Forty-eight adult male Sprague Dawley rats were divided equally (n = 16 in each group) into controls (given saline alone), and two experimental groups, given injections of TP508 10 mu g or 100 mu g. The animals were killed on days 14 and 28 after distraction. Histomorphometric evaluation showed that the TP508 resulted in significantly larger areas of newly formed bone (p < 0.003 and p < 0.0001) than saline alone. At 2 weeks, more new bone had formed in the group given TP508 100 jig than in the group given 10 mu g, but the difference was not significant (p = 0.8). However, the difference was significant at 4 weeks (p = 0.03). These findings suggest that a single injection of TP508 given at the end of the distraction period increased the degree of consolidation. The higher dose was more effective at the later time point. (C) 2009 The British Association of Oral and Maxillofacial Surgeons. All rights reserved.
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