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J Clin Periodontol:新型水凝胶可用于治疗牙周缺损

2019-07-14 不详 网络

本研究旨在评估全身甲状旁腺激素(PTH)和局部递送的中性自组装肽(SAP)水凝胶的体内联合治疗牙周病的效果。使用WST-1测定评估中性SAP纳米纤维水凝胶(SPG-178)中大鼠牙周韧带细胞的活力/增殖。在40只Wistar大鼠的上颌第一磨牙中间产生牙周缺损,填充或未填充1.5%SPG-178。每2天注射PTH(1-34)或盐水。微计算机断层扫描,组织学和免疫组化检查评估愈合。结果显示,在72小时

本研究旨在评估全身甲状旁腺激素(PTH)和局部递送的中性自组装肽(SAP)水凝胶的体内联合治疗牙周病的效果。

使用WST-1测定评估中性SAP纳米纤维水凝胶(SPG-178)中大鼠牙周韧带细胞的活力/增殖。在40只Wistar大鼠的上颌第一磨牙中间产生牙周缺损,填充或未填充1.5%SPG-178。每2天注射PTH(1-34)或盐水。微计算机断层扫描,组织学免疫组化检查评估愈合。

结果显示,在72小时,与0.8%SPG-178或未处理对照中的细胞相比,1.5%SPG-178中的细胞显示出活力/增殖的增加。在体内,全身PTH在4周时未填充组中的骨体积显著高于盐水对照组(p <0.0001)。在PTH / SPG-178和PTH /未填充组中观察到较盐水/ SPG-178组中明显更大的骨体积(p = 0.004-0.0003)。组织学上,在4周时在PTH / SPG-178中观察到比其他组中更大的骨形成。在PTH / SPG-178组中,在治疗部位观察到PCNA-,VEGF-和Osterix阳性细胞的比例增加。

总之,这些研究结果表明,间歇性全身性PTH和局部递送的中性SAP水凝胶可增强牙周愈合。

原始出处:

Wataru Y, Matsugami D, et al., Combined effects of systemic parathyroid hormone (1-34) and locally delivered neutral self-assembling peptide hydrogel in the treatment of periodontal defects: an experimental in vivo investigation.  J Clin Periodontol. 2019 Jul 11. doi: 10.1111/jcpe.13170.

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    2020-05-30 feather89
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    2019-07-16 tastas
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    2019-07-16 lishizhe
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