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中华口腔医学研究杂志(电子版) ›› 2008, Vol. 02 ›› Issue (01) : 46 -51. doi: 10.3877/cma.j.issn.1674-1366.2008-01-010

基础研究

辛伐他汀对骨质疏松大鼠骨代谢的影响
杜志斌1, 陈江1,(), 黄文秀1, 简小冲1, 闫福华1   
  1. 1. 350002 福州,福建医科大学附属口腔医院种植中心
  • 收稿日期:2007-06-06 出版日期:2008-02-01
  • 通信作者: 陈江
  • 基金资助:
    福建省科技攻关计划重点项目(2003Y025)福建医科大学教授学术发展基金(JS06104)

Effects of simvastatin on bone metabolism in osteoporosis rats

Zhi-bin DU1, Jiang CHEN1,(), Wen-xiu HUANG1, Xiao-chong JIAN1, Fu-hua YAN1   

  1. 1. Department of Oral Implant, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350002, China
  • Received:2007-06-06 Published:2008-02-01
  • Corresponding author: Jiang CHEN
引用本文:

杜志斌, 陈江, 黄文秀, 简小冲, 闫福华. 辛伐他汀对骨质疏松大鼠骨代谢的影响[J/OL]. 中华口腔医学研究杂志(电子版), 2008, 02(01): 46-51.

Zhi-bin DU, Jiang CHEN, Wen-xiu HUANG, Xiao-chong JIAN, Fu-hua YAN. Effects of simvastatin on bone metabolism in osteoporosis rats[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2008, 02(01): 46-51.

目的

观察辛伐他汀对骨质疏松大鼠骨代谢的影响。

方法

将54 只雌性SD 大鼠随机分为假手术组、卵巢切除组和卵巢切除加辛伐他汀组,每组18 只。适应性喂养后进行造模手术。8 周时确认大鼠形成骨质疏松后开始给药,实验组给予辛伐他汀5 mg·kg-1·d-1;其余两组用等量生理盐水灌服。 分别在第12、20 周时分两批处死大鼠,取血观察各组大鼠的碱性磷酸酶、钙、磷、骨源性碱性磷酸酶(BALP)、骨钙素(BGP)的代谢情况。

结果

与对照组相比,12 周时卵巢切除加辛伐他汀组的血清BALP 水平升高(3.73±0.46,P<0.01),20 周时血清BGP 水平升高(9.24±1.98,P<0.01);与12 周比较,20 周时假手术组、卵巢切除组和卵巢切除加辛伐他汀组的大鼠血清BALP 水平均下降(2.33±0.77,1.50±0.34,2.22±0.28,P<0.05,P<0.01),卵巢切除组的血清BGP 水平也显著下降(4.02±0.72,P<0.05)。

结论

辛伐他汀能够显著影响大鼠的骨代谢,辛伐他汀对去卵巢大鼠有促进成骨的作用。

Objective

To investigate the effect of Simvastatin on bone metabolism in Osteoporosis rats.

Methods

Fifty four female SD Rats aged 3 months were divided into three groups by randomized block design. They were Sham-operated groups (SHAM), ovariectomized group (OVX) and Simvastatin with ovariectomized rats group (OVX+SIM). When osteoporosis model was established at 8 weeks,Simvastatin were administered orally 5 mg·kg-1·d-1 to OVX+SIM group and normal saline to the other two groups. The rats were sacrificed separately at 12th week and 20th week. Blood sample were collected to obtain serum levels of alkaline phosphatase (ALP), Ca, P, bone specific alkaline phosphatase (BALP),and bone gla protein (BGP) at the time of killing.

Results

The level of BALP was significantly increased in the OVX+SIM group as compared with two other groups at 12 weeks (3.73±0.46, P<0.01). At 20 weeks,the level of BGP in the OVX+SIM group was significantly increased too (9.24±1.98, P<0.01). Compared with 12 weeks, the levels of BALP were significantly decreased at 20 weeks in all groups(2.33±0.77, 1.50±0.34, 2.22±0.28, P<0.05, P<0.01), and the level of BGP of OVX group was significantly decreased too(4.02±0.72, P<0.05).

Conclusion

Our results demonstrate that Simvastatin can affect bone metabolism and has a general beneficial effect on bone formation of Osteoporosis rats.

图1 卵巢切除术后8 周子宫对照(HE 染色×4) 注:a(假手术组)与b(卵巢切除组)比较:假手术组组子宫腔大小正常、腺体发达;卵巢切除组组子宫腔、腺体均萎缩
图2 卵巢切除术后8 周大鼠胫骨近中端比较(HE 染色×4) 注:a(假手术组)与b(卵巢切除组)比较:假手术组松质骨骨小梁排列规则,连续性好;卵巢切除组组松质骨骨小梁出现断裂,不连续
图3 假手术组、卵巢切除组、卵巢切组加辛伐他汀组大鼠体重变化 与假手术组比较,*P<0.05
表1 造模12、20 周后各组血清Ca、P 测量结果(±s)mmol/L
表2 造模12、20 周后血清碱性磷酸酶、骨源性碱性磷酸酶、骨钙素测量结果(±s)
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