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- 2017
组织蛋白酶K抑制剂对正畸牙移动牙周组织改建的影响
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Abstract:
摘要 目的: 探究组织蛋白酶K抑制剂对大鼠正畸牙移动阶段牙周组织改建的影响。方法: 42只Wistar雄性大鼠,建立正畸牙移动模型,在牙移动第0天时处死6只大鼠作为基线,其余随机分为实验组和对照组,分别给予同剂量的组织蛋白酶K抑制剂和生理盐水局部注射,牙移动后第3、7、14天处死,取上颌骨第一磨牙远中根周围的牙周组织,进行HE染色、组织蛋白酶K及I型胶原免疫组织化学染色。结果: 组织蛋白酶K主要在压力区表达,实验组组织蛋白酶K的阳性表达少于对照组,第7、14天时的表达量差异性显著(P<0.05)。I型胶原主要在张力区表达,实验组I型胶原的阳性表达多于对照组,第7、14天时的表达差异显著(P<0.05)。结论: 组织蛋白酶K抑制剂影响正畸牙移动过程牙周组织的改建,可抑制牙周组织中组织蛋白酶K的表达,促进I型胶原的分泌
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