中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (25): 3961-3965.doi: 10.3969/j.issn.2095-4344.2014.25.005

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

数字化珊瑚羟基磷灰石人工骨的致敏实验

林  山1,黄晓梅2,3,芮  钢1,尹庆水4,尤元璋1   

  1. 1厦门大学附属第一医院骨科,福建省厦门市  361003;2漳州职业技术学院食品与生物工程系,福建省漳州市  363000;3中国科学院城市环境研究所,城市生态健康与环境安全研究中心,福建省厦门市   361021;4解放军广州军区广州总医院,全军创伤骨科中心,广东省广州市   510010
  • 收稿日期:2014-04-30 出版日期:2014-06-18 发布日期:2014-06-18
  • 通讯作者: 林山,厦门大学附属第一医院骨科,福建省厦门市 361003
  • 作者简介:林山,男,1981年生,福建省莆田市人,汉族,主治医师,2011年南方医科大学毕业,博士,主要从事骨组织工程与数字骨科研究。
  • 基金资助:

    福建省自然科学基金青年创新项目(2013D013);福建省教育厅科技项目(JA12416);漳州职业技术学院院级科研项目(ZZY1204)

Sensitization test of the digital coralline hydroxyapatite artificial bone scaffold at the maximal dosage

Lin Shan1, Huang Xiao-mei2, 3, Rui Gang1, Yin Qing-shui4, You Yuan-zhang1   

  1. 1Department of Orthopedics, the First Affiliated Hospital of Xiamen University, Xiamen 361003, Fujian Province, China; 2Department of Food and Biological Engineering, Zhangzhou Institute of Technology, Zhangzhou 363000, Fujian Province, China; 3Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Fujian Province, China; 4Orthopedic Trauma Center of PLA, General Hospital of Guangzhou Military Region, Guangzhou 510010, Guangdong Province, China
  • Received:2014-04-30 Online:2014-06-18 Published:2014-06-18
  • Contact: Lin Shan, Department of Orthopedics, the First Affiliated Hospital of Xiamen University, Xiamen 361003, Fujian Province, China
  • About author:Lin Shan, M.D., Attending physician, Department of Orthopedics, the First Affiliated Hospital of Xiamen University, Xiamen 361003, Fujian Province, China
  • Supported by:

    the Natural Science Foundation of Fujian Province, No. 2013D013; the Science and Technology Projects of Fujian Educational Bureau, No. JA12416; the Scientific Research Project of Zhangzhou Institute of Technology, No. ZZY1204

摘要:

背景:前期实验成功制备了数字化珊瑚羟基磷灰石人工骨支架材料,并已通过实验证实其具有骨组织工程支架材料必需的理化性能。
目的:评价数字化珊瑚羟基磷灰石人工骨的致敏性。
方法:将32只白化豚鼠随机分为4组,每组8只:实验组分别采用质量比为3∶1或4∶1原料制备的数字化珊瑚羟基磷灰石人工骨支架浸提液,阳性对照组采用体积分数为5%甲醛溶液,阴性对照组采用生理盐水。根据《GB-T 16886.10-2005 医疗器械生物学评价第10部分刺激与迟发型超敏反应试验》最大剂量致敏试验步骤进行皮内诱导、局部诱导和激发。激发阶段去除贴附物后24,48 h豚鼠皮肤反应按Magnusson和Kligman等级进行分级。激发阶段去除贴附物后48 h后对皮肤进行活检,行苏木精-伊红染色和光镜下观察。
结果与结论:阴性对照组和质量比为3∶1或4∶1原料制备的数字化珊瑚羟基磷灰石人工骨支架浸提液组激发阶段去除贴附物后24,48 h皮肤无致敏反应,而阳性对照组在这任一时间点均有中度以上红斑。活检皮肤光镜下实验组未见皮肤水肿,皮肤棘细胞层水肿,血管周围、弥漫的真皮和表皮单核细胞浸润,见散在少量的嗜碱性细胞。说明质量比为3∶1或4∶1原料制备的数字化珊瑚羟基磷灰石人工骨支架在致敏方面具有生物安全性。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 骨生物材料, 珊瑚羟基磷灰石, 左旋-聚乳酸, 快速成形, 骨组织工程, 生物相容性, 福建省自然科学基金

Abstract:

BACKGROUND: We have successfully prepared digital coralline hydroxyapatite artificial bone scaffold in previous experiments, and it has been confirmed that it has the necessary physical and chemical properties of bone tissue engineering scaffolds.
OBJECTIVE: To evaluate the sensitization of digital coralline hydroxyapatite artificial bone scaffold.
METHODS: A total of 32 guinea pigs were randomly divided into saline group (negative control group, n=8), 5% formaldehyde group (positive control group, n=8), experimental A group (the mass ratio of 3:1, n=8), and experimental B group (the mass ratio of 4:1, n=8). Sensitization test at the maximal dosage was performed 
according to Biological Evaluation of Medical Devices-Part 10: Tests for Irritation and Delayed-Type Hypersensitivity, including intracutaneous induction, local induction, and provocation. Patch was removed after 24 and 48 hours, and the skin response was classified according to Magnusson and Kligman criteria. Patch was removed after 48 hours, and the skin was performed with biopsy, stained with hematoxylin-eosin, and observed under optical microscope.
RESULTS AND CONCLUSION: Sensitization response was not tested in the negative control group, experimental A group and experimental B group at 24 and 48 hours after patch removal; however, moderate erythema was observed in the positive control group. Optical microscope demonstrated that spongiosis, edema, diffuse or perivascular mononuclear infiltration was not observed, and only a small number of basicytes were seen in the experimental A and B groups. These findings indicate that the digital coral hydroxyapatite artificial bone scaffolds, with the mass ratio of 3:1 and 4:1, are biologically safe for sensitization.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: hydroxyapatites, tissue engineering, immunization

中图分类号: