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局部应用血管内皮生长因子对兔下颌牵张成骨的作用 被引量:1

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摘要 [目的]研究局部应用外源性血管内皮生长因子对兔下颌牵张成骨的作用。[方法]将16只大耳白兔随机分为A、B两组,每组8只。在兔双侧下颌骨前部行骨切开术后用牵张器延长双侧下颌骨7 mm。从牵张开始第1天在A组动物牵张区每日注射VEGF 100 ng,每日2次,连续7 d。注射生理盐水的B组动物用作对照。在牵张结束后第2、4、6、8周分别处死A、B两组各2只动物,取双侧牵张区新生骨痂进行组织学检查。在牵张结束后不同时期(第l天、第2、4、6、8周),分别拍摄下颌骨X线片,观察下颌骨延长情况及其牵张区骨密度变化。[结果]放射学和组织学分析结果显示,注射VEGF的A组动物牵张间隙内新骨形成的速度及数量和B组动物相比无明显差异。[结论]外源性导入血管内皮生长因子可能没有促进兔下颁牵张成骨的作用。
出处 《中山大学学报(医学科学版)》 CAS CSCD 北大核心 2006年第B04期19-22,共4页 Journal of Sun Yat-Sen University:Medical Sciences
基金 广东省科技计划项目(2003C32706)
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参考文献12

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