Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (32): 5210-5214.doi: 10.3969/j.issn.2095-4344.2015.32.023

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Bone marrow mesenchymal stem cells combined with theaflavin for steroid-induced avascular necrosis of femoral head

Zhao Chuan-yong1, Ding Yan-fang1, Zhang Wen-zhi2, Yao Yu-long3   

  1. 1Department of Clinical Pharmacy, General Hospital of Guizhou Shuicheng Coal Mining (Group) Co., Ltd., Liupanshui 553000, Guizhou Province, China; 
    2Zunyi Medical University, Zunyi 563000, Guizhou Province, China; 3People’s Hospital of Liupanshui City, Liupanshui 553000, Guizhou Province, China
  • Online:2015-08-06 Published:2015-08-06
  • Contact: Zhao Chuan-yong, Department of Clinical Pharmacy, General Hospital of Guizhou Shuicheng Coal Mining (Group) Co., Ltd., Liupanshui 553000, Guizhou Province, China; Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • About author:Zhao Chuan-yong, Associate chief pharmacist, Department of Clinical Pharmacy, General Hospital of Guizhou Shuicheng Coal Mining (Group) Co., Ltd., Liupanshui 553000, Guizhou Province, China; Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • Supported by:

    the Science and Technology Fund of Guizhou Provincial Health Department, No. Gzwkj22014-2-1

Abstract:

BACKGROUND: Pathological mechanism of femoral head necrosis is not fully known, and high-dose corticosteroids are prone to induce femoral head necrosis.

OBJECTIVE: To investigate the clinical effect of bone marrow mesenchymal stem cells combined with theaflavin on steroid-induced avascular necrosis of femoral head in rats.

METHODS: Rat bone marrow mesenchymal stem cells were isolated and cultured in vitro and compounded onto gelatin sponge, and then, divided into four groups: model group, decompression group, cell transplantation group and combined group. Models of steroid-induced avascular necrosis of femoral head were established using liquid nitrogen method. In the combined group, gelatin sponge carrying bone marrow mesenchymal stem cells was transplanted and 250 mg theaflavin was given daily after modeling.

RESULTS AND CONCLUSION: At 4 weeks after modeling, the femoral head samples in the four groups were round with exfoliation of articular cartilage that was pale in color. Then, the exfoliation of articular cartilage was aggravated in the model group, and some specimens appeared to collapse; the femoral head specimens in the combined group were round and pale. Until the 8th week after modeling, bone necrosis was increased in the model group; osteoblasts were found in the decompression group with fibrous callus formation; a few of empty bone lacunae appeared with irregular medullary cavity in the cell transplantation group; a large amount of new bone tissues formed in the combined group, and intramedullary adiocytes were in regular array. At 4 and 8 weeks after modeling, the number of empty bone lacunae was significantly lower in the combined group than the other groups (P < 0.05). These findings indicate that bone marrow mesenchymal stem cells combined with theaflavin is an ideal therapy for steroid-induced avascular necrosis of femoral head.

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words: Tissue Engineering, Stem Cells, Femur Head Necrosis, Glucocorticoids

CLC Number: