Chinese Journal of Tissue Engineering Research ›› 2018, Vol. 22 ›› Issue (20): 3178-3183.doi: 10.3969/j.issn.2095-4344.0236

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Shaoyang Shenggu formula for fracture healing in rat models and the expression change of transforming growth factor beta 1 after repair

Guo Xiao-guang1, 2, Zhang Lei1, 2, Guan Tai-yuan1, 2, Zhou Xin1, 2, Liu Gang1, 2, Yi Gang1, 2, Liu Yang1, 2, Fu Shi-jie1, 2   

  1. 1Department of Bone and Joint, the Affiliated TCM Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China; 2Academician Workstation in Luzhou, Luzhou 646000, Sichuan Province, China
  • Received:2018-03-01 Online:2018-07-18 Published:2018-07-18
  • Contact: Fu Shi-jie, Professor, Chief physician, Master supervisor, Department of Bone and Joint, the Affiliated TCM Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China; Academician Workstation in Luzhou, Luzhou 646000, Sichuan Province, China
  • About author:Guo Xiao-guang, Master candidate, Department of Bone and Joint, the Affiliated TCM Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Supported by:

    the Science and Technology Support Project of Sichuan Province, No. 2014SZ0185; Academician Workstation Construction Project of Luzhou, No. 20180101; Luzhou Science and Technology Program, No. 2014-S-46(8/11); A Joint Special Project of the Southwest Medical University-the Affiliated Hospital of Chinese Medicine of Southwest Medical University, No. 2016-4-31 and 2016-4-4

Abstract:

BACKGROUND: Shaoyang Shenggu formula has been shown to significantly promote cartilage repair, but its effect on fracture healing is unclear. Transforming growth factor β1 (TGF-β1) can inhibit the activity of osteoclasts, stimulate the activation of osteoblasts, accelerate the synthesis and accumulation of bone matrix, and reflect the speed of fracture healing to a certain extent.
OBJECTIVE: To explore the effect of Shaoyang Shenggu formula on the fracture healing in rats and the underlying mechanism.
METHODS: Seventy-two Sprague-Dawley rats were subjected to left tibial fracture modeling, and then equivalently randomized into Shaoyang Shenggu, Ossotide and control groups. At 7, 15, 30 and 56 days after modeling, six rats from each group were selected for X-ray examination. The wet weight of the broken tibia was measured. The serum level of TGF-β1 was tested by ELISA, and the expression level of TGF-β1 in the bone stump was detected by immunohistochemistry.
RESULTS AND CONCLUSION: The X-ray examination revealed that in the Shaoyang Shenggu and Ossotide groups, the amount of callus formation in the bone stump was significantly higher than that in the control group, and the density of callus was higher, and the line of fracture was indistinct. The fracture healing degree in the Shaoyang Shenggu and Ossotide groups was obviously better than that in the control group. The tibial wet weight in the Shaoyang Shenggu group was gradually increased over time but no significant difference was observed as compared with the Ossotide group (P > 0.05). The wet weight of tibia in the Shaoyang Shenggu and Ossotide groups was significantly higher than that in the control group (P < 0.05). At 7 days after modeling, there was no significant difference in the serum level of TGF-β1 among groups (P > 0.05). At 15, 30 and 56 days after injury, the serum level of TGF-β1 in the Shaoyang Shenggu and Ossotide groups was significantly higher than that in the control group (P < 0.05). The expression level of TGF-β1 in the bone stump did not differ significantly between Shaoyang Shenggu and Ossotide groups (P > 0.05), but the level in the Shaoyang Shenggu and Ossotide groups was significantly higher than that in the control group (P < 0.05). These findings suggest that Shaoyang Shenggu formula can increase the expression level of TGF-β1 in the rat serum and bone stump, promote the formation of callus in the tibial lesions, and accelerate bone 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: Transforming Growth Factor beta 1, Drug Combinations, Fracture Healing, Tissue Engineering

CLC Number: