Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (15): 2320-2324.doi: 10.3969/j.issn.2095-4344.2015.15.005

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Topical application of nerve growth factor in early fracture healing after peripheral nerve injury

Zhao Chong-xi, Ma Jun, He Ning, Chen Zhao-hui   

  1. Second Department of Orthopedics, Guangyuan Hospital of Traditional Chinese Medicine, Guangyuan 628000, Sichuan Province, China
  • Revised:2015-03-13 Online:2015-04-09 Published:2015-04-09
  • About author:Zhao Chong-xi, Associate chief physician, Associate professor, Second Department of Orthopedics, Guangyuan Hospital of Traditional Chinese Medicine, Guangyuan 628000, Sichuan Province, China

Abstract:

BACKGROUND: Fracture healing mechanism is complex and affected by many factors, and delayed fracture healing or nonunion often occurs. How to promote fracture healing has become a serious problem.
OBJECTIVE: To observe the effect of local application of nerve growth factor on early fracture healing after peripheral nerve injury.
METHODS: Thirty-six healthy male Wistar rats were selected to establish tibial fracture models, which were randomly divided into four groups, with 18 limbs in each group. Group A: tibial fracture+normal saline injection via bilateral gastrocnemius muscles; group B: tibial fracture+nerve injury+normal saline injection; group C: tibial fracture+local injection of nerve growth factor; group D: tibial fracture+nerve injury+local injection of nerve growth factor. Callus metrology results were compared among different groups.
RESULTS AND CONCLUSION: The callus volume was the most in the group B at 4 weeks of intervention, but there were no different among the other three groups (P > 0.05). At 2 weeks of intervention, the bone resorption area was significantly larger in the group B than the group D (P < 0.05), and the osteoclast index was significantly higher in the group A than the group C (P < 0.05); while at 4 weeks of intervention, the mineralized bone trabecular width was significantly lower in the group A than the group C (P < 0.05) as well as lower in the group C than the group D (P < 0.05). These findings indicate that after peripheral nerve injury, local application of nerve growth factor can enhance the osteogenic ability, effectively inhibit osteoclast activity, and promote the early healing of fracture.



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


全文链接:

Key words: Nerve Growth Factor, Fractures, Bone, Fracture Healing

CLC Number: