Chinese Journal of Tissue Engineering Research

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A method for elevating survival rate of models of steroid-induced necrosis of femoral head

Li Rui-qi, Zhang Guo-ping, Li Yi-jiong, Li Ya-li, Ren Li-zhong, Zhang Yu-chen, Wang Wei, Gao Hong-yang, L   

  1. Ya-jun (Department of Orthopedics, the First Hospital of Hebei Medical University, Shijiazhuang  050031, Hebei Province, China
  • Revised:2013-11-02 Online:2013-12-10 Published:2013-12-10
  • About author:Li Rui-qi★, Master, Associate chief physician, Department of Orthopedics, the First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China li_ruiqi2008@126.com

Abstract:

BACKGROUND: Animal death is a main influential factor for experimental results in establishment of animal models of steroid-induced necrosis of femoral head.
OBJECTIVE: To observe models of femoral head necrosis established using lipopolysaccharide and dexamethasone so as to elevate success rate of model induction.
METHODS: A total of 48 New Zealand white rabbits were equally and randomly divided into model group, gentamicin group, gentamicin + lansoprazole group and control group. The first three groups were injected with lipopolysaccharide for 2 consecutive days via the ear vein, and then they were injected with dexamethasone via intramuscular injection in the buttocks for 3 consecutive days to establish models of femoral head necrosis. The rabbits of gentamicin group, gentamicin + lansoprazole group were intragastrically administered gentamicin for 7 consecutive days after success model induction. Simultaneously, gentamicin + lansoprazole group received intramuscular injection with lansoprazole. Rabbits in the control group were only injected with saline.
RESULTS AND CONCLUSION: Models were successfully established in the model, gentamicin, gentamicin + lansoprazole groups. Their conditions were best in the gentamicin + lansoprazole group. Mortalities in above-mentioned groups were 33.3%, 25% and 8.3%, respectively. Significant differences in the number of dead rabbits were detected in the model, gentamicin, gentamicin + lansoprazole and control groups (P < 0.05). Results indicated that the combined use of gentamicin and lansoprazole can elevate survival rate of experimental animals during the establishment of rabbit models of steroid-induced necrosis of femoral head.



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


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Key words: femur head necrosis, endotoxins, lipopolysaccharides, dexamethasone, gentamicins, disease models, animal

CLC Number: