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超分支聚-l-氨酸修改型表面具有增强的骨整合,细菌静止和植入物应用的抗炎性质:实验性体外研究:实验性体外研究

Qifeng Jiang¹, Xiaoru Qin¹, Zhaolong Wang²

¹School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Stomatology Hospital, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China.

Clinical oral implants research

|September 12, 2024

概括

超分支聚-l-氨酸 (HBPL) 改性 (Ti) 表面显著改善了骨整合,减少了细菌生长和炎症. 这些HBPL-Ti表面显示出提高牙植入物性能的前景.

科学领域:

生物材料科学生物材料科学
牙科植入物学牙科植入物学
表面工程是什么?表面工程是什么?

背景情况:

(Ti) 是牙科植入物中广泛使用的材料.
加强骨整合和预防感染仍然是植入学中的关键挑战.
探索表面修改策略以提高植入物性能.

研究的目的:

为了研究高分支聚烯 (HBPL) 涂层 (Ti) 表面的影响.
在体内评估骨质整合,细菌静止和抗炎性质.
在三种不同的动物模型中评估HBPL-Ti植入物.

主要方法:

在Ti表面上对HBPL进行共价接种.
植入物放置在常规,受感染的狗无牙部位和糖尿病老鼠部.
使用SEM,EDX,微CT,组织形态测量,临床参数和细菌培养物的分析.

主要成果:

HBPL-Ti表面表现出显著增强的骨质整合,由更高的骨体积,骨植入物接触和椎数量表明.
感染模型显示感染的临床迹象减少,HBPL-Ti表面的细菌负荷较低.
糖尿病老鼠模型显示骨愈合改善和调节炎症标志物 (调低TNF-α,IL-1β;调高IL-10,OCN).

结论:

与未涂层Ti相比,HBPL修饰的Ti表面促进了优异的骨整合.
HBPL-Ti表面具有显著的细菌静止特性,减少了细菌的殖民.
修改后的表面表现出抗炎作用,这对于糖尿病等具有挑战性的疾病的愈合至关重要.

关键词:

这是一种抗炎药,是一种抗炎药.细菌静止症是一种细菌静止症.皮格尔犬皮格尔犬是一只小狗.糖尿病大鼠糖尿病大鼠超分支的聚-l-氨酸.植入物表面植入物表面植入物表面骨质整合骨质整合

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