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The expression of vascular endothelial growth factor in the condyle during forward mandibular positioning
Author(s): 
Pages: 3-5
Year: Issue:  1
Journal: JOURNAL OF CLINICAL STOMATOLOGY

Keyword:  功能性矫治血管内皮细胞生长因子下颌前伸;
Abstract: 目的:探讨引导大鼠下颌前伸后,髁突软骨中血管内皮细胞生长因子(VEGF)表达水平的变化.方法:50只35 d龄雌性SD大鼠随机分为5组,每组随机分为实验组(5只)和对照组(5只);实验组大鼠24 h佩戴自制功能性矫治器引导下颌前伸;实验后3 d、7 d、14 d、21 d和30 d分别处死各组大鼠;免疫组化方法检测髁突软骨中VEGF的表达.结果:对照组髁突软骨VEGF表达随时间延长而减弱,后部区域VEGF表达强于前部和中部;实验后第14 d,21 d和30 d实验组VEGF表达强于相应对照组(P<0.05),其中14 d时软骨后部VEGF表达较对照组增强幅度最大.结论:下颌前伸后大鼠髁突软骨细胞VEGF表达增强,说明其参与了软骨内骨化过程.
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