中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (30): 5511-5517.doi: 10.3969/j.issn.2095-4344.2013.30.015

• 骨与关节损伤基础实验 basic experiments of bone and joint injury • 上一篇    下一篇

不同长度兔桡骨缺损区骨形态发生蛋白2的表达

詹玉林1,安智全1,孙鲁源1,张长青1,曾炳芳1,许  锋2,侯国柱3,李文举2,朱小萌2,宋兴华2   

  1. 1上海交通大学附属上海市第六人民医院骨科,上海市  200033
    2新疆医科大学第一附属医院骨科,新疆维吾尔自治区乌鲁木齐市  830054
    3解放军第一五二中心医院骨科,河南省平顶山市  467000
  • 收稿日期:2013-04-09 修回日期:2013-05-21 出版日期:2013-07-23 发布日期:2013-07-23
  • 通讯作者: 詹玉林☆,男,1971年生,汉族,甘肃省人,2008年新疆医科大毕业,博士,副主任医师,主要从事骨与脊柱脊髓损伤的治疗工作。bondwe@163.com 宋兴华,男,博士、副教授、主任医师,硕士生导师。新疆医科大学第一附属医院骨科,新疆维吾尔自治区乌鲁木齐市 830054 songxinhua19@yahoo.com.cn
  • 作者简介:詹玉林☆,男,1971年生,汉族,甘肃省人,2008年新疆医科大毕业,博士,副主任医师,主要从事骨与脊柱脊髓损伤的治疗工作。bondwe@163.com 并列第一作者:许锋★,男,汉族,湖北省人,2011年新疆医科大学毕业,硕士,主要从事骨科临床工作。 xufeng798@163.com
  • 基金资助:

    国家自然科学基金资助项目(81060144)。

Bone morphogenetic protein 2 expression in rabbit radial defect site with different lengths

Zhan Yu-lin1, An Zhi-quan1, Sun Lu-yuan1, Zhang Chang-qing1, Zeng Bing-fang1, Xu Feng2, Hou Guo-zhu3, Li Wen-ju2, Zhu Xiao-meng2, Song Xing-hua2   

  1. 1Department of Orthopedics, the Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University, Shanghai  200033, China
    2Department of Orthopedics, the First Affiliated Hospital of Xinjiang Medical University, Urumqi  830054, Xinjiang Uygur Autonomous Region, China
    3Department of Orthopedics, the 152 Central Hospital of PLA, Pingdingshan  467000, Henan Province, China
  • Received:2013-04-09 Revised:2013-05-21 Online:2013-07-23 Published:2013-07-23
  • Contact: Zhan Yu-lin and Xu Feng contributed equally to this paper. Zhan Yu-lin, M.D., Associate chief physician, Department of Orthopedics, the Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200033, China bondwe@163.com Song Xing-hua, M.D., Associate professor, Chief physician, Master’s supervisor, Department of Orthopedics, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China songxinhua19@yahoo.com.cn
  • About author:Zhan Yu-lin☆, M.D., Associate chief physician, Department of Orthopedics, the Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200033, China bondwe@163.com Xu Feng★, Master, Department of Orthopedics, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China xufeng798@163.com
  • Supported by:

    National Natural Science Foundation of China, No. 81060144

摘要:

背景:有研究表明在骨缺损的状态下,骨形态发生蛋白2的分布存在一定的规律。
目的:观察不同长度兔桡骨骨缺损部位骨形态发生蛋白2的表达。
方法:将48只新西兰大白兔随机分成2组,分别在麻醉下用线锯造成兔左前臂桡骨中段0.5和3.0 cm的骨缺损。
结果与结论:Western blot检测显示,0.5 cm骨缺损组骨缺损部位骨形态发生蛋白2蛋白表达量在损伤后1,3,4周呈逐渐增多的趋势,且每组均较损伤即刻明显增加(P < 0.05);3.0 cm骨缺损组骨缺损部位的骨形态发生蛋白2的相对表达量在损伤后3周达到高峰(P < 0.05),其峰值水平明显高于0.5 cm骨缺损组(P < 0.05),基本维持在较高水平。对骨痂的生成情况进行量化评估结果显示,损伤后3,4周,3.0 cm骨缺损组的骨痂生成量较0.5 cm骨缺损组明显减少(P < 0.05)。证实,兔桡骨3.0 cm的骨缺损部位骨形态发生蛋白2表达明显上调,但还不能使该长度的骨缺损自行愈合。

关键词: 骨关节植入物, 骨关节损伤基础实验, 骨缺损, 骨形态发生蛋白2, 长度, 骨愈合, 兔, 桡骨, 国家自然科学基金

Abstract:

BACKGROUND: It has been studied that the distribution of bone morphogenetic protein 2 is regular under bone defect situation.
OBJECTIVE: To observe the expression of bone morphogenetic protein 2 in rabbit radial defect site with different lengths.
METHODS: Forty-eight New Zealand rabbits were divided into two groups randomly, 0.5 cm bone defect and 3.0 cm bone defect were made by wire saw at the middle part of radius bone after anaesthesia.
RESULTS AND CONCLUSION: Western blot results showed that in the 0.5 cm bone defect group, the expression of bone morphogenetic protein 2 of the tissues in the bone defect site was increased gradually at 1, 3, 4 weeks after operation, and the expression in each defect group was increased when compared with that immediately after injury (P < 0.05). In the 3.0 cm bone defect group, the expression of bone morphogenetic protein 2 of tissues in bone defect site was increased gradually and reached to its peak at 3 weeks after the operation (P < 0.05), and the peak value in the 3.0 cm bone defect group was significantly higher than that in
0.5 cm bone defect group (P < 0.05). The peak value was maintained in high level. The comparison of bone callus formation showed that the bone callus formation of 3.0 cm bone defect group was less than that of the 0.5 cm bone defect group at 3 and 4 weeks after operation (P < 0.05). The results indicate that expression of the bone morphogenetic protein 2 in 3.0 cm bone defect site is increased significantly, but the expression level cannot make the bone defect heal itself.

Key words: bone and joint implants, basic experiment of bone joint injury, bone defect, bone morphogenetic protein 2, length, bone healing, rabbits, radius bone, National Natural Science Foundation of China

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