中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (15): 2385-2390.doi: 10.3969/j.issn.2095-4344.1161

• 组织构建与生物活性因子 tissue construction and bioactive factors • 上一篇    下一篇

桡骨骨折模型兔骨折愈合:特异性环氧化酶2抑制剂与非特异性环氧化酶抑制剂的比较

陈海涛,安玉光   

  1. (南宁市邕宁区人民医院外科,广西壮族自治区南宁市   530299)
  • 收稿日期:2018-11-30 出版日期:2019-05-28 发布日期:2019-05-28
  • 通讯作者: 安玉光,硕士,主治医师,南宁市邕宁区人民医院外科,广西壮族自治区南宁市 530299
  • 作者简介:陈海涛,男,1966年生,广西壮族自治区贵港市人,汉族,研究生,主任医师,主要从事骨科创伤、四肢骨折、人工关节置换术的研究。
  • 基金资助:

    南宁市科学研究与技术开发项目(20153087),项目负责人:陈海涛

Efficacy of specific versus non-specific cyclooxygenase-2 inhibitors in the healing of rabbit models of tibial fractures

Chen Haitao, An Yuguang     

  1. (Department of Surgery, People’s Hospital of Yongning District, Nanning 530299, Guangxi Zhuang Autonomous Region, China)
  • Received:2018-11-30 Online:2019-05-28 Published:2019-05-28
  • Contact: An Yuguang, Master, Attending physician, Department of Surgery, People’s Hospital of Yongning District, Nanning 530299, Guangxi Zhuang Autonomous Region, China
  • About author:Chen Haitao, Master candidate, Chief physician, Department of Surgery, People’s Hospital of Yongning District, Nanning 530299, Guangxi Zhuang Autonomous Region, China
  • Supported by:

    the Scientific Research and Technology Development Project of Nanning, No. 20153087 (to CHT)

摘要:

文章快速阅读:

文题释义:
环氧化酶抑制剂:是对环氧化酶具有抑制作用的化合物。环氧化酶抑制剂包括两大类:一类为非特异性环氧化酶抑制剂,即可同时抑制环氧化酶1和环氧化酶2,如阿司匹林等;第二大类为特异性的环氧化酶2抑制剂,如塞来考昔是第一个由FDA批准的用于家族性腺瘤性息肉病治疗的环氧化酶2特异性抑制剂。研究发现,许多抑制环氧化酶2的非类固醇类抗炎药几乎都能同时抑制环氧化酶1,对环氧化酶1的抑制作用越强则不良反应越大,对环氧化酶2抑制作用越大则其消炎、止痛效果越显著。
应激反应:各种紧张性刺激物(应激源)引起的个体非特异性反应。包括生理反应和心理反应两大类。生理反应表现为交感神经兴奋、垂体和肾上腺皮质激素分泌增多、血糖升高、血压上升、心率加快和呼吸加速等;心理反应包括情绪反应与自我防御反应、应对反应等。应激反应是刺激物同个体自身的身心特性交互作用的结果,而不仅仅由刺激物引起,还与个体对应激源的认识、个体处理应激事件的经验等有关。
摘要
背景:
非特异性环氧化酶抑制剂和特异性环氧化酶抑制剂都是常用的镇痛、消炎类非类固醇类药,两种药物治疗对骨折创伤愈合的效果及用药时间的比较缺乏相关实验依据。
目的:对比非特异性环氧化酶2抑制剂与特异性环氧化酶2抑制剂对兔桡骨骨折愈合的效果。
方法:3-5月龄新西兰大白兔36只,雌雄不限,实验动物由广西医科大学实验动物中心提供。建立兔单侧桡骨骨折(3 mm)模型共36只,随机分为3组:模型组予以等剂量蒸馏水灌胃;特异性环氧化酶2抑制剂组予以1.15 mg/(kg•d)依托考昔灌胃;非特异性环氧化酶抑制剂组予以7.6 mg/(kg•d)阿司匹林灌胃,每组12只。在术后2,4,8周对各组兔桡骨组织进行大体观察和组织病理切片染色观察,检测兔血清骨钙素及骨组织转化生长因子β1、血管内皮生长因子水平。
结果与结论:①术后观察发现非特异性环氧化酶抑制剂组造模侧桡骨组织在骨痂的形成改建及愈合情况上均要优其他2组;②术后的各个时间点非特异性环氧化酶抑制剂组血清骨钙素水平明显高于特异性环氧化酶2抑制剂组(P < 0.05);③苏木精-伊红染色结果:非特异性环氧化酶抑制剂组在胶原纤维、软骨组织、骨小梁及骨基质的形成时期均早于特异性环氧化酶2抑制剂组;④术后第4周非特异性环氧化酶抑制剂组转化生长因子β1和血管内皮生长因子免疫组织化学平均吸光度值均明显大于特异性环氧化酶2抑制剂组(P < 0.05);⑤结果说明,特异性环氧化酶2抑制剂修复兔桡骨骨折的时间相对非特异性环氧化酶更长,说明环氧化酶2特异性抑制剂对骨折愈合的效率低于非特异性环氧化酶抑制剂。

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
ORCID: 0000-0002-2951-7359(陈海涛);0000-0001-6858-3781(安玉光)

关键词: 特异性环氧化酶2抑制剂, 非特异性环氧化酶抑制剂, 骨折, 转化生长因子β1, 血管内皮生长因子

Abstract:

BACKGROUND: Non-specific cyclooxygenase inhibitor and specific cyclooxygenase inhibitor are commonly used nonsteroidal anti-inflammatory and analgesic drugs, but there is a lack of experimental evidence concerning the effect of these drugs on the fracture healing and the administration time.
OBJECTIVE: To investigate the effect of non-specific cyclooxygenase-2 inhibitor versus specific cyclooxygenase-2 inhibitor on the healing of tibial fractures in rabbits.
METHODS: Thirty-six 3-5-month-old New Zealand rabbits either in sexes were selected (provided by Laboratory Animal Center of Guangxi Medical University). Rabbit models of unilateral tibial fractures (3 mm) were established and randomly divided into modeling group (same volume of distilled water via gavage), specific cyclooxygenase-2 inhibitor group (1.15 mg/kg?d etoricoxib via gavage), and non-specific cyclooxygenase-2 inhibitor group (7.6 mg/kg?d aspirin via gavage), with 12 rabbits in each group. At 2, 4 and 8 weeks postoperatively, the fracture healing was observed and assessed by gross observation and histopathological sections. The serum level of osteocalcin, and levels of transforming growth factor β1 and vascular endothelial growth factor were detected.
RESULTS AND CONCLUSION: (1) The non-specific cyclooxygenase-2 inhibitor group was superior to the other two groups in the formation and remodeling of callus and healing. (2) The serum level of osteocalcin in the non-specific cyclooxygenase-2 inhibitor group was significantly higher than that in the specific cyclooxygenase-2 inhibitor group (P < 0.05). (3) Hematoxylin-eosin staining results: the non-specific cyclooxygenase-2 inhibitor group was earlier than the specific cyclooxygenase-2 inhibitor group in the formation of collagen fibers, cartilage tissue, trabecular bone and bone matrix. (4) The average absorbance value of transforming growth factor and vascular endothelial growth factor in the non-specific cyclooxygenase-2 inhibitor group was significantly higher than those in the specific cyclooxygenase-2 inhibitor group at 4 weeks postoperatively (P < 0.05). (5) These results suggest that specific cyclooxygenase-2 inhibitor for rabbit tibia fractures took longer time than non-specific cyclooxygenase-2 inhibitor, indicating that cyclooxygenase-2 specific inhibitor is less effective than non-specific cyclooxygenase-2 inhibitor in fracture healing.

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

Key words: Fractures, Bone, Cyclooxygenase 2, Transforming Growth Factor beta1, Vascular Endothelial Growth Factors, Tissue Engineering

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