Effect of targeted delivery of bone morphogenetic protein-2 on bone formation in type 1 diabetes.

Effect of targeted delivery of bone morphogenetic protein-2 on bone formation in type 1 diabetes.
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骨形态发生蛋白 2 靶向递送对 1 型糖尿病骨形成的影响。

DOI:
10.11607/jomi.3956
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发表时间:
2015
期刊:
The International journal of oral & maxillofacial implants
影响因子:
--
通讯作者:
Trackman,PhillipC
Trackman,PhillipC
中科院分区:
--
文献类型:
--
作者:
deSantana,RonaldoBarcellos;Trackman,PhillipC

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目的:实验性1型糖尿病患者的骨形成和愈合减少。本研究探讨局部控释重组人骨形态发生蛋白-2(rhBMP-2)能否通过促进骨合成代谢促进糖尿病大鼠骨缺损的愈合。材料和方法:在BALB/cByJ小鼠颞骨造成双侧实验性环状骨缺损。以脱细胞胶原海绵+0.4或1.8µg重组人骨形态发生蛋白-2作为对照,对缺损区进行修复。对糖尿病小鼠和非糖尿病小鼠14天后的缺陷愈合情况进行了组织形态计量学分析。结果:糖尿病抑制了未经治疗和BMP治疗的骨缺损处的骨形成。局部控释rhBMP-2显著刺激糖尿病动物的骨形成,使其接近正常水平,并促进正常动物的骨再生。结论:重组人BMP-2可用于治疗糖尿病膜内骨形成缺陷。
Purpose: Bone formation and healing are diminished in experimental type 1 diabetes. The present study investigated whether controlled local release of recombinant human bone morphogenetic protein 2 (rhBMP-2) stimulates bone defect healing in diabetes as a consequence of its anabolic effects on bone. Materials and Methods: Bilateral experimental circular bone defects were created in the temporal bones of 64 BALB/cByJ mice. Defects were treated with acellular collagen sponge plus 0.4 or 1.8 µg of rhBMP-2 per defect, and untreated defects served as controls. The healing of the defects over a 14-day period in diabetic and nondiabetic mice was analyzed histomorphometrically. Results: Diabetes inhibited bone formation in both untreated and BMP-treated bone defects. Controlled local release of rhBMP-2 significantly stimulated bone formation in diabetic animals, bringing it nearly to normal levels, and enhanced bone regeneration in normal animals. Conclusion: Recombinant human BMP-2 may be beneficial in treating deficient intramembranous bone formation in diabetes.
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期刊: The British journal of ophthalmology
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