华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

组织工程化口腔黏膜载体材料聚乳酸羟基乙酸膜在兔皮下的埋植实验

祁兵1,李宏卫2,温玉明3,王昌美3,李龙江3,宋晓陵1   

  1. 1.南京医科大学附属口腔医院病理科;2.领面外科,江苏 3.四川大学华西口腔医院口腔领面外科,四川成都南京210029 610041
  • 收稿日期:2004-10-25 修回日期:2004-10-25 出版日期:2004-10-20 发布日期:2004-10-20
  • 通讯作者: 祁兵,Tei:025-85031921
  • 作者简介:祁兵(1967-),男,江苏人,讲师,学士
  • 基金资助:
    江苏省教育厅自然科学基金资助项目(03ICJD3201)

An Experimental Study on PLGA Carrier for Oral Tissue Engineered Mucosa by Subcutaneous Implantation in Rabbits

QI Bing1,Ll Hong-weiz2,WEN Yw nting3,WANG Chang-mei3,LI Long-jiang3,SONG Xiao-ling1   

  1. 1.Dept.of Oral Pathol- 0g),Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China;2. Dept.of Oral and Maxillofacial Sur- gery, Stornatological Hospital of Nanjing Medical Uni_rsity, Nanjing 210029, China;3. Dept.of Oral and Maxillofacial Sur- gery, West China College of Stomatology,Sichuan University, Chengdu 610041,China
  • Received:2004-10-25 Revised:2004-10-25 Online:2004-10-20 Published:2004-10-20

摘要:

目的为组织工程化口腔豁膜的培养筛选合适的载体材料。方法在兔皮下手术埋人8种不同组分的聚乳酸经基乙酸(PLGA),手术后第1,2,3,4周取出,分别观察其质量变化和周围组织反应情况。结果PLGA工、 II、班分别在术后第2,3,4周时全部降解吸收,其余组PLGA在4周时仅降解50%左右;组织学观察,PLGA工、n、班在动物体内反应符合一般生物相容性材料的组织反应过程。结论PLGA II降解速度符合临床需要,且其具有良好的组织相容性,可用作口腔勃膜组织工程载体材料。

关键词: 聚乳酸经基乙酸, 生物材料, 生物相容性

Abstract:

Objective To look for the best carrier for cultivating oral tissue engineered mucosa. Methods A series of mem- brane of scaffold materials of polycleelide-co-plycoclide (PLGA)were studied on their weight and biocompatibilityafter they had been implanted subcutaneously in rabbits for 1, 2 , 3 , 4 weeks respectively. Results PLGAI,II,III degraded completely in rab- bits after 2,3,4 weeks respectively. The other PLGA membrane degraded about 50% after 4 weeks. Histologically, the reactions of PLGAI,II,III with surrounding tissues were normal and membranes had a good biocompatibility. Conclusion The biode- grading rate of PLGA II is suitable for clinic practice. PLGA II~a promising carrier for oral tissue-engineered mucosa due to its excellent biocompatibility and biodegrading rate..

Key words: polyclechde-co-plycochde, biomaterials, biocompatibility