中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (10): 1559-1564.doi: 10.3969/j.issn.2095-4344.0716

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

浓缩生长因子在体外模拟体液及模拟唾液中的降解速率

邹新明1,2,黄  娜2,王远勤1,2,李少冰3,唐尤超1,2
  

  1. 1暨南大学口腔医学院,广东省广州市  510000;2暨南大学附属惠州口腔医院·惠州口腔医院,广东省惠州市  516000;3南方医科大学口腔医院牙周种植科,广东省广州市  510055
  • 收稿日期:2018-01-16 出版日期:2018-04-08 发布日期:2018-04-08
  • 通讯作者: 唐尤超,医院院长,主任医师,博士,硕士生导师,暨南大学附属惠州口腔医院·惠州口腔医院,广东省惠州市 516000
  • 作者简介:邹新明,男,1984年生,江西省临川市人,汉族,主治医师,主要从事口腔种植及颌面外科的临床研究。
  • 基金资助:
    广东省医学科学技术研究基金项目(A2016262);惠州科技计划项目(2016Y186)

In vitro degradation rate of concentrated growth factors in simulated body fluid and simulated saliva fluid

Zou Xin-ming1, 2, Huang Na2, Wang Yuan-qin1, 2, Li Shao-bing3, Tang You-chao1, 2
  

  1. 1Stomatological College of Jinan University, Guangzhou 510000, Guangdong Province, China; 2Department of Oral Implantology, Huizhou Stomatological Hospital, Jinan University, Huizhou 516000, Guangdong Province, China; 3Department of Oral Implantology, Hospital of Stomatology, Southern Medical University, Guangzhou 510055, Guangdong Province China
  • Received:2018-01-16 Online:2018-04-08 Published:2018-04-08
  • Contact: Tang You-chao, M.D., Chief physician, Master’s supervisor, Stomatological College of Jinan University, Guangzhou 510000, Guangdong Province, China; Department of Oral Implantology, Huizhou Stomatological Hospital, Jinan University, Huizhou 516000, Guangdong Province, China
  • About author:Zou Xin-ming, Attending physician, Stomatological College of Jinan University, Guangzhou 510000, Guangdong Province, China; Department of Oral Implantology, Huizhou Stomatological Hospital, Jinan University, Huizhou 516000, Guangdong Province, China
  • Supported by:

    the Medical Science and Technology Research Fund of Guangdong Province, No. A2016262; the Scientific Research Plan of Huizhou, No. 2016Y186

摘要:

文章快速阅读:

 

文题释义:
引导组织骨再生术:作为常见的骨增量术式之一,其基本原理为通过生物膜的物理屏障膜功能将骨再生区域与外界隔离,从而形成相对封闭的成骨区域,使成骨细胞在该区域迁移、增殖及分化。
浓缩生长因子:作为第3代的血浆提取物,是一种富含白细胞和血小板的自体纤维蛋白物,还含有自体血小板来源的骨诱导生长因子和和骨诱导性纤维蛋白基质。与富血小板纤维蛋白的制备类似,浓缩生长因子是使用血液体外离心法,但它需要一个特殊的程序离心机,其离心使用的塑料管涂有二氧化硅颗粒,并且不添加外源物质。
 
摘要
背景:可吸收生物材料在组织工程应用中的降解速率至关重要,不同因素均影响降解速率。
目的:比较膜状与块状浓缩生长因子在模拟体液及模拟唾液中的降解特性。
方法:抽取15名健康志愿者静脉血,将每名志愿者血液样本平均分为4等份,其中2份制作块状浓缩生长因子,分别记为A组、B组;另2份制作膜状浓缩生长因子,分别记为C组、D组。将A组、C组样本浸没于模拟体液中,B组、D组样本浸没于模拟唾液中,观察样本完全降解时间,计算每日平均降解速率比。
结果与结论:①A-D组平均完全降解时间分别为(14.0±0.7),(9.7±0.9),(9.9±1.2),(7.2±0.7) d;②在相同模拟液中不同性状浓缩生长因子的每日平均降解速率比,A组显著低于C组(P < 0.05),B组显著低于D组(P < 0.05);相同性状浓缩生长因子在不同模拟液中的每日平均降解速率比,A组显著低于B组(P < 0.05),C组显著低于D组(P < 0.05);③结果表明,在相同降解环境中,膜状浓缩生长因子的降解速率高于块状浓缩生长因子;在相同性状下,浓缩生长因子在模拟唾液中的降解速率高于在模拟体液中的降解速率。

关键词: 浓缩生长因子, 体外降解, 模拟体液, 模拟唾液, 组织再生, 生物材料

Abstract:

BACKGROUND: Bioabsorbable biomaterials are of crucial importance in tissue engineering applications, and various factors affect their degradation.
OBJECTIVE: To compare the degradation characteristics of concentrated growth factor (CGF) clot and CGF membrane in simulated body fluid (SBF) and simulated saliva fluid (SSF).
METHODS: Fifteen volunteers were selected, and human blood samples were collected for the preparation of CGF clot or CGF membrane. All specimens from each subject were averagely divided into four groups: group A, CGF clot in SBF; group B, CGF clot in SSF; group C, CGF membrane in SBF; group D, CGF membrane in SSF. The specimens were subjected to the immersion test. The average daily rate of degradation of each group was calculated after the samples were thoroughly degraded, and weight loss ratio per unit time was also determined.
RESULTS AND CONCLUSION: (1) The mean degradation time in groups A-D were (14.0±0.7), (9.7±0.9), (9.9±1.2) and (7.2±0.7) days, respectively. (2) By comparing CGF membrane with CGF clot in the same simulated fluid, the average daily degradation rate of CGF clot (groups A, B) was statistically significantly lower than counterparts of CGF membrane (groups C, D) (P < 0.05). By comparison between SBF and SSF, the average daily degradation rate in the SBF (groups A, B) was significantly lower than counterparts in the SSF (groups C, D) (P < 0.05). Overall, the degradation rate of CGF membrane is higher than that of CGF clot under the same degradation environment; for CGF membrane or CGF clot, the degradation rate in SSF is higher than that in SBF.

Key words: Guided Tissue Regeneration, Saliva, Blood Platelets, Fibrin, Tissue Engineering

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