中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (26): 4106-4111.doi: 10.3969/j.issn.2095-4344.2665

• 骨组织构建 bone tissue construction • 上一篇    下一篇

引导骨再生技术结合补肾法修复大鼠股骨骨缺损

 1,张  1,姜自伟2,申  1,冯俊铭1,郝成义1,蔡杨庭3   

  1. 1广州中医药大学,广东省广州市  5104052广州中医药大学第一附属医院,广东省广州市  5104053广东省中医院,广东省广州市  510405

  • 收稿日期:2019-10-22 修回日期:2019-10-24 接受日期:2019-12-13 出版日期:2020-09-18 发布日期:2020-08-29
  • 通讯作者: 蔡杨庭,硕士,主治医师,广东省中医院,广东省广州市 510405
  • 作者简介:谢磊,女,1995年生,汉族,广州中医药大学在读硕士,主要从事中医临床基础研究。
  • 基金资助:
    国家自然科学基金项目(81774337);广东省中医药局科研基金项目(20181080);广东省医学科学技术研究基金项目(B2018097)

Guided bone regeneration combined with kidney-tonifying therapy for repairing femoral bone defect in rats

Xie Lei1, Zhang Yan1, Jiang Ziwei2, Shen Zhen1, Feng Junming1, Hao Chengyi1, Cai Yangting3    

  1. 1Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 2the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 3Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510405, Guangdong Province, China

  • Received:2019-10-22 Revised:2019-10-24 Accepted:2019-12-13 Online:2020-09-18 Published:2020-08-29
  • Contact: Cai Yangting, Master, Attending physician, Guangdong Provincial Hospital of Traditional Chinese Medicine,Guangzhou 510405, Guangdong Province, China
  • About author:Xie Lei, Master candidate, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81774337; the Research Foundation of Traditional Chinese Medicine Bureau of Guangdong Province, No. 20181080; the Medical Science and Technology Research Foundation of Guangdong Province, No. B2018097

摘要:


文题释义:

引导骨再生技术:是指通过生物膜屏障创造出骨组织优势生长的环境,使具有骨组织修复能力的骨细胞优先进入骨缺损腔,为骨缺损的修复、骨折愈合提供新方法。

补肾法是指中医辨证理论指导下,运用补肾中药以固秘肾气、滋养肾精及充养骨髓,从而坚固骨骼,“补肾法”思想在中医骨伤临床实践发挥了重要的指导作用。

背景:引导骨再生技术作为目前应用最广泛的骨缺损修复方法之一已广泛运用于口腔医学领域,但关于引导骨再生技术在长骨骨干骨缺损中应用的研究报道很少。

目的:探究引导骨再生技术结合中药补肾治疗对大鼠股骨骨缺损修复的影响,评估其成骨效能,并探讨其作用机制。

方法36SD大鼠随机分为6(n=6):空白组、引导骨再生组、补肾高剂量组、补肾中剂量组、补肾低剂量组、骨肽片(西药)组,建立大鼠股骨骨缺损模型,除空白组外,其余各组均给予引导骨再生治疗,采用引导骨再生技术植入自体骨及Bio-Gide胶原膜;补肾各剂量组分别给予0.2160.1080.054 g/(kgd)的强骨胶囊灌胃治疗8周;骨肽片组予以0.58 mg/(kgd)骨肽片灌胃治疗8周。术后第12周,以X射线检查、骨组织苏木精-伊红染色及Masson染色为主要评价指标,评估成骨情况;采用实时荧光定量RT-PCR法检测骨组织中碱性磷酸酶、核心结合因子2、血管内皮生长因子及骨形态发生蛋白2 mRNA的表达。

结果与结论X射线检查、骨组织苏木精-伊红染色及Masson染色结果显示,各治疗组Lane-Sandhu X射线评分与Huddleston组织学评分均显著高于空白组(P < 0.001),其中补肾高剂量组和补肾中剂量组明显高于引导骨再生组(P < 0.01);②RT-PCR检测结果显示,与空白组相比较,补肾高剂量组和补肾中剂量组对骨组织中碱性磷酸酶、核心结合因子2、血管内皮生长因子及骨形态发生蛋白2 mRNA的表达有显著上调作用(P < 0.01),且明显优于引导骨再生组(P < 0.05);③提示引导骨再生技术结合中药补肾法治疗能明显促进大鼠股骨骨缺损修复、减少骨组织吸收并改善成骨效能。其作用机制可能是在膜屏障创造出骨组织优势生长的环境中,通过上调相关成骨因子及血管生成因子的表达,促进骨组织新生及血管形成。

 ORCID: 0000-0003-2986-6986(谢磊)


中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 股骨, 骨缺损, 引导骨再生技术, 补肾法, Bio-Gide胶原膜, 成骨效能

Abstract:

BACKGROUND: Guided bone regeneration technology, as a most widely used method for repairing bone defects, has been extensively used in the field of stomatology. However, there are few reports on the guided bone regeneration technology in long bone defects.

OBJECTIVE: To explore the effects of guided bone regeneration combined with kidney-tonifying therapy on the repair of femoral bone defects in rats, and investigate its osteogenic efficacy and underlying mechanism.

METHODS: Thirty-six Sprague-Dawley rats were randomly divided into six groups: blank group, guided bone regeneration group, high-, moderate-, and low-dose kidney-tonifying groups, and ossotide tablets group. The femur bone defect model of rats was established, and was treated by guided bone regeneration except for blank group. Bio-Gide collagen membrane combined with autologous bone was implanted by guided bone regeneration. The kidney-tonifying groups were given 0.216, 0.108 and 0.054 g/(kg•d) Qianggu capsule via gavage for 8 weeks. The ossotide tablets group was given 0.58 mg/(kg•d) ossotide tablets via gavage for 8 weeks. At 12 weeks after surgery, the osteogenesis was evaluated by X-ray examination, hematoxylin-eosin staining and Masson staining of bone tissue. The mRNA expression levels of alkaline phosphatase, Runx-2, vascular endothelial growth factor and bone morphogenetic protein-2 in bone tissues were detected by quantitative real-time RT-PCR.

RESULTS AND CONCLUSION: Results of X-ray examination and hematoxylin-eosin staining and Masson staining of bone tissue showed that the scores of Lane Sandhu and Huddleston in each group were significantly higher than those in the blank group (P < 0.001). The scores in the high- and moderate-dose kidney-tonifying groups were significantly higher than those in the guided bone regeneration group (P < 0.01). RT-PCR results showed that the mRNA expression levels of alkaline phosphatase, Runx-2, vascular endothelial growth factor and bone morphogenetic protein-2 in bone tissue in the high- and moderate-dose kidney-tonifying groups were significantly higher than those in the blank group (P < 0.01), and were superior to the guided bone regeneration group (P < 0.05). In summary, guided bone regeneration combined with kidney-tonifying can significantly promote the repair of femoral bone defects, reduce bone absorption and improve osteogenic efficacy in rats. The mechanism of promoting bone regeneration and angiogenesis may be by up-regulating the expression of related osteogenic factors and angiogenic factors in the environment where the membrane barrier creates a dominant growth of bone tissue.

Key words: femur, bone defects, guided bone regeneration technology, kidney-tonifying therapy, Bio-Gide collagen membrane, osteogenic efficiency

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