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J Periodontal Res:葡萄糖浓度对II型糖尿病大鼠骨髓来源的间充质干细胞在纳米改性钛表面成骨分化的影响

2017-07-29 MedSci MedSci原创

糖尿病(DM)是一种常见病。与健康人相比,DM患者的牙齿丧失风险增加。种植体是部分或完全牙缺失的治疗标准,并且最近出现了各种种植体表面处理方法以增加种植体的稳定性。然而,一些研究报道,DM可抑制种植体的骨结合,降低成功率。这项研究的目的是确定高血糖水平对纳米级改性钛表面硬组织形成的影响。

糖尿病(DM)是一种常见病。与健康人相比,DM患者的牙齿丧失风险增加。种植体是部分或完全牙缺失的治疗标准,并且最近出现了各种种植体表面处理方法以增加种植体的稳定性。然而,一些研究报道,DM可抑制种植体的骨结合,降低成功率。这项研究的目的是确定高血糖水平对纳米级改性钛表面硬组织形成的影响。

在含或不含10MNaOH溶液处理后,将钛盘在600℃下加热1小时。在暴露于四种葡萄糖溶液(浓度5.5,8.0,12.0或24.0mM)之前,将钛盘与II型DM大鼠骨髓来源的间充质基质细胞一起孵育。评估不同葡萄糖浓度对纳米级改性钛表面骨髓间充质基质细胞成骨和炎症细胞因子的影响。

结果:碱性磷酸酶活性随着葡萄糖浓度的增加而降低。相比之下,在浓度为8.0mM时,骨钙素的产生和钙沉积明显降低,但随着葡萄糖浓度超过8.0mM其产生增加。与不同葡萄糖浓度相关的钙/磷酸盐比例的差异与骨钙素产生和钙沉积相似。炎症细胞因子在高葡萄糖浓度下表达,但纳米级改性钛表面抑制高葡萄糖浓度的影响。

结论:高葡萄糖浓度促进硬组织形成,但矿化组织的质量下降。此外,纳米级改性钛表面促进矿化组织形成,加强抗炎,但硬组织的质量依赖于葡萄糖浓度。

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    2017-12-19 feather89
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    2017-12-23 30397613
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    2017-11-06 HinsMax
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    2017-07-31 zhaojie88
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