J Dent Sci:血管内皮生长因子和双相磷酸钙在股骨缺损的骨内愈合过程中的作用

2019-03-23 不详 网络

足够的骨量是牙齿修复的关键。尽管使用了许多有希望的同种异体,但由于局部生物反应差,刺激骨形成的作用有限。研究已经引入生长因子来刺激血管生成和新骨形成。这项组织学和组织形态学研究旨在评估血管内皮生长因子(VEGF)和双相异体移植材料(BA)对大鼠骨内缺损愈合的影响。使用20只雄性Wistar大鼠。在每只大鼠的右股骨和左股骨中都产生了两个临界尺寸的骨缺损。每个缺损随机分配用VEGF,BA或VEGF +

足够的骨量是牙齿修复的关键。尽管使用了许多有希望的同种异体,但由于局部生物反应差,刺激骨形成的作用有限。研究已经引入生长因子来刺激血管生成和新骨形成。这项组织学和组织形态学研究旨在评估血管内皮生长因子(VEGF)和双相异体移植材料(BA)对大鼠骨内缺损愈合的影响。

使用20只雄性Wistar大鼠。在每只大鼠的右股骨和左股骨中都产生了两个临界尺寸的骨缺损。每个缺损随机分配用VEGF,BA或VEGF + BA处理,或作为对照留空。1周后处死一半动物,2周后处死剩余的一半。通过组织学和组织形态学分析评估炎症,坏死和新骨区域。

结果显示,与对照组相比,单独用VEGF或与BA组合治疗的缺损在第7天显示出更高的骨形成率(33.10-46.60%)。另外,VEGF显着减少炎症和坏死(P <0.001)。但是,在第14天,这些差异消失。

总之,该研究结果表明,VEGF在骨缺损愈合的早期阶段对血管生成和骨生成中作用明显,并且其与骨传导性移植材料(BA)的组合可以进一步增强新骨形成。

原始出处:

Bedeloğlu E, Ersanlı S, Arısan V. Vascular endothelial growth factor and biphasic calcium phosphate in the endosseous healing of femoral defects: An experimental rat study. J Dent Sci. 2017 Mar;12(1):7-13. doi: 10.1016/j.jds.2016.04.005. Epub 2016 Jul 9.

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    2019-03-29 329523732

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    2019-03-25 lfcmxl
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