Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (40): 6402-6407.doi: 10.3969/j.issn.2095-4344.2015.40.002

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Effects of zoledronic acid on bone metabolism disturbance in the femur of type 1 diabetic rat models

Cao Lu-ning, Cui Min, Yu Ling-zhi, Zhang Na, Zhao Xu   

  1. Department of Pain Management, Jinan Central Hospital Affiliated to Shandong University, Jinan 250013, Shandong Province, China
  • Online:2015-09-30 Published:2015-09-30
  • Contact: Yu Ling-zhi, M.D., Chief physician, Department of Pain Management, Jinan Central Hospital Affiliated to Shandong University, Jinan 250013, Shandong Province, China
  • About author:Cao Lu-ning, Studying for master’s degree, Department of Pain Management, Jinan Central Hospital Affiliated to Shandong University, Jinan 250013, Shandong Province, China
  • Supported by:

    the Science and Technology Project of Shandong Province of China, No. 2011GSF11817

Abstract:

BACKGROUND: Osteoporosis caused by diabetes mellitus as common secondary osteoporosis has been paid more and more attention recently. Zoledronic acid serves as a novel drug for osteoporosis, and its effect on osteoblasts in vivo remains unclear.

OBJECTIVE: To investigate the changes of the expression of bone morphogenetic protein 2 and Noggin in the femur of type 1 diabetes mellitus rats and the effect of zoledronic acid on them.

METHODS: Models of type 1 diabetes mellitus were established by intraperitoneal injection of streptozotocin in 130 Wistar rats. 3 days later, rats with blood sugar > 16.7 mmol/L for three consecutive times were considered as successful models, 120 in total. These models were randomly divided into model, prevention and treatment groups. Rats in the prevention and treatment groups were intravenously administered zoledronic acid (0.1 mg/kg) on the day of modeling and 2 weeks after model establishment. An additional 40 rats were injected with citrate buffer solution as control group.

RESULTS AND CONCLUSION: Compared with the control group, femur bone mineral density, serum alkaline phosphatase levels, and femur bone morphogenetic protein 2 mRNA expression levels were significantly lower in the model group (P < 0.05), but Noggin mRNA expression significantly increased (P < 0.05). Compared with the model group, bone mineral density and bone morphogenetic protein 2 mRNA expression levels were significantly higher in the prevention and treatment groups (P < 0.05), but Noggin mRNA expression significantly lower (P < 0.05), and serum alkaline phosphatase levels gradually restored. These results indicated that the bone metabolic disturbance occurs in early stage in rats with type 1 diabetes mellitus. Zoledronic acid can promote bone formation, increase bone density, and improve bone metabolism.

中国组织工程研究杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程

Key words: Diabetes Mellitus, Type 1, Osteoporosis, Bone Diseases, Metabolic, Bone Density

CLC Number: