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Influence of nano‐hydroxyapatite coating implants on gene expression of osteogenic markers and micro‐CT parameters. An in vivo study in diabetic rats
Journal of Biomedical Materials Research Part A ( IF 3.9 ) Pub Date : 2020-06-30 , DOI: 10.1002/jbm.a.37052
Paula Gabriela Faciola Pessôa de Oliveira 1 , Mariana Sales de Melo Soares 1 , Adriana Maria Mariano Silveira E Souza 1 , Mário Taba 1 , Daniela Bazan Palioto 1 , Michel Reis Messora 1 , Bruna Ghiraldini 2 , Felipe Anderson de Sousa Nunes 1 , Sérgio Luís Scombatti de Souza 1
Affiliation  

This study evaluated the response of a nano‐hydroxyapatite coating implant through gene expression analysis (runt‐related transcription factor 2 (Runx2), alkaline phosphatase (Alp), osteopontin (Opn), osteocalcin (Oc), receptor activator of nuclear factor‐kappa B (Rank), receptor activator of nuclear factor‐kappa B ligand (Rank‐L), and osteoprotegerin (Opg)). Three‐dimensional evaluation (percent bone volume (BV/TV); percent intersection surface (BIC); bone surface/volume ratio (BS/BV); and total porosity (To.Po)) were also analyzed. Mini implants were surgically placed in tibias of both healthy and diabetic rats. The animals were euthanized at 7 and 30 days. Evaluating all factors the relative expression of Rank showed that NANO surface presented the best results at 7 days (diabetic rats). Furthermore the levels of Runx2, Alp, Oc, and Opn suggest an increase in osteoblasts proliferation, especially in early stages of osseointegration. %BIC in healthy and diabetic (7 days) depicted statistically significant differences for NANO group. BV/TV, BS/BV and To.Po demonstrated higher values for NANO group in all evaluated time point and irrespective of systemic condition, but BS/BV 30 days (healthy rat) and 7 and 30 days (diabetic rat). Microtomographic and gene expression analyses have shown the benefits of nano‐hydroxyapatite coated implants in promoting new bone formation in diabetic rats.

中文翻译:

纳米羟基磷灰石涂层植入物对成骨标志物基因表达和显微CT参数的影响。糖尿病大鼠的体内研究

本研究通过基因表达分析(runt 相关转录因子 2 (Runx2)、碱性磷酸酶 (Alp)、骨桥蛋白 (Opn)、骨钙素 (Oc)、核因子-kappa 受体激活剂)评估了纳米羟基磷灰石涂层植入物的反应。 B(Rank)、核因子-κB配体的受体激活剂(Rank-L)和骨保护素(Opg))。还分析了三维评估(骨体积百分比(BV/TV);相交表面百分比(BIC);骨表面/体积比(BS/BV);和总孔隙率(To.Po))。微型植入物被手术放置在健康和糖尿病大鼠的胫骨中。在第 7 天和第 30 天对动物实施安乐死。评估所有因素Rank的相对表达表明NANO表面在7天(糖尿病大鼠)呈现最佳结果。此外,Runx2、Alp、Oc 的水平,和 Opn 表明成骨细胞增殖增加,尤其是在骨整合的早期阶段。健康和糖尿病患者(7 天)中的 %BIC 描述了 NANO 组的统计学显着差异。BV/TV、BS/BV 和 To.Po 在所有评估的时间点均显示 NANO 组更高的值,无论全身状况如何,但 BS/BV 为 30 天(健康大鼠)和 7 天和 30 天(糖尿病大鼠)。显微断层扫描和基因表达分析显示了纳米羟基磷灰石涂层植入物在促进糖尿病大鼠新骨形成方面的益处。Po 在所有评估的时间点显示出更高的值,无论全身状况如何,但 BS/BV 为 30 天(健康大鼠)和 7 天和 30 天(糖尿病大鼠)。显微断层扫描和基因表达分析显示了纳米羟基磷灰石涂层植入物在促进糖尿病大鼠新骨形成方面的益处。Po 在所有评估的时间点显示出更高的值,无论全身状况如何,但 BS/BV 为 30 天(健康大鼠)和 7 天和 30 天(糖尿病大鼠)。显微断层扫描和基因表达分析显示了纳米羟基磷灰石涂层植入物在促进糖尿病大鼠新骨形成方面的益处。
更新日期:2020-06-30
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