中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (30): 4837-4841.doi: 10.3969/j.issn.2095-4344.2015.30.016

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

聚四氟乙烯联合Ⅰ型胶原作为隆鼻高分子材料的生物相容性

尹中普1,孙  晓2   

  1. 南阳市中心医院,1耳鼻喉头颈外科,
    2消化内科,河南省南阳市 473003
  • 出版日期:2015-07-16 发布日期:2015-07-16
  • 作者简介:尹中普,男,1981年生,河南省南阳市人,硕士,副主任医师,主要从事消化及耳鼻咽喉-头颈外科及生物免疫治疗方面的研究。

Biocompatibility of polytetrafluoroethylene combined with type I collagen as a nose filler material

Yin Zhong-pu1, Sun Xiao2   

  1. 1Department of Otolaryngology-Head and Neck Surgery, Nanyang Centre Hospital, Nanyang 473003, Henan Province, China; 
    2Department of Gastroenterology, Nanyang Centre Hospital, Nanyang 473003, Henan Province, China
  • Online:2015-07-16 Published:2015-07-16
  • About author:Yin Zhong-pu, Master, Associate chief physician, Department of Otolaryngology-Head and Neck Surgery, Nanyang Centre Hospital, Nanyang 473003, Henan Province, China

摘要:

背景:高分子材料聚四氟乙烯膨体作为隆鼻填充材料具有耐腐蚀、化学性质稳定等优点,但其线膨胀系数较大,易引发感染及排异反应,故应用有一定局限性。

目的:对比聚四氟乙烯和聚四氟乙烯联合Ⅰ型胶原作为隆鼻填充材料的细胞毒性、埋植后的炎性浸润及体内生物相容性。

方法:采用MTT法检测聚四氟乙烯浸提液和聚四氟乙烯联合Ⅰ型胶原浸提液培养L929细胞的细胞增殖。采用电子显微镜观察聚四氟乙烯浸提液和聚四氟乙烯联合Ⅰ型胶原浸提液培养L929细胞后的细胞生长情况。将聚四氟乙烯和聚四氟乙烯联合Ⅰ型胶原材料分别埋置于新西兰白兔鼻背筋膜下7 d,苏木精-伊红染色观察鼻黏膜上皮组织炎性浸润情况。兔耳缘静脉分别注射聚四氟乙烯浸提液和聚四氟乙烯联合Ⅰ型胶原浸提液后,观察兔的全身毒性、过敏、热源反应及死亡情况。

结果与结论:作为隆鼻填充材料,聚四氟乙烯联合Ⅰ型胶原材料在细胞毒性、埋植后的炎性浸润方面均优于单纯聚四氟乙烯材料(P < 0.05);兔耳缘静脉注射聚四氟乙烯联合Ⅰ型胶原材料后发生的过敏反应、热源反应少于注射单纯聚四氟乙烯材料(P < 0.05)。表明聚四氟乙烯联合Ⅰ型胶原作为隆鼻填充材料具有良好的生物相容性。

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

关键词: 生物材料, 材料相容性, 聚四氟乙烯, 聚四氟乙烯联合Ⅰ型胶原, 鼻填充材料, 生物相容性

Abstract:

BACKGROUND: Polytetrafluoroethylene (PTEE) as a nose filler material has advantages on the resistant to corrosion, chemical stability and so on. However, its linear expansion coefficient is large easily leading to infection and rejection, and its application has some limitations.

OBJECTIVE: To compare the cell toxicity, inflammatory infiltrates and biocompatibility indexes in vivo between PTEE and PTEE combined with type I collagen.

METHODS: MTT method was used to detect the relative proliferation rate of L929 cells cultured with PTEE extract or PTEE combined with type I collagen extract; an electron microscope was used to observe the cell growth. PTEE or PTEE combined with type I collagen was embedded under the nasal dorsal fascia of New Zealand white rabbits for 7 days, and hematoxylin-eosin staining was used to detect whether nasal mucosa epithelial tissue had inflammatory infiltration. Systemic toxicity, allergies, pyrogen reaction and deaths of rabbits were observed after injection of two kinds of material extracts by ear vein.

RESULTS AND CONCLUSION: The cytotoxicity and inflammatory infiltration were milder in PTEE combined with type I collagen group than PTEE group (P < 0.05). The allergic reactions and pyrogen reactions were fewer in PTEE combined with type I collagen group than PTEE group (P < 0.05). These findings indicate that PTEE 
combined with type I collagen as the nose filler material has better biocompatibility. 

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

Key words: olytetrafluoroethylene, Collagen Type I, Biocompatible Materials

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