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地塞米松长期间断用药对大鼠骨骼的影响
引用本文:卢丽,王秀丽,蔡惠宁,陈珺,杨国柱,程晴,李青南.地塞米松长期间断用药对大鼠骨骼的影响[J].中国医药导报,2011,8(23):5-6.
作者姓名:卢丽  王秀丽  蔡惠宁  陈珺  杨国柱  程晴  李青南
作者单位:1. 广东药学院生命科学与生物制药学院,广东广州,510006
2. 北京海军总医院门诊部,北京,100048
基金项目:2009国家基金面上项目资助课题,2010广系省科技计划项目
摘    要:目的:研究长期、间断使用地塞米松(dexamethasone,Dex)对大鼠骨骼的影响。方法:20只雄性SD大鼠随机分为Dex组和NC组,Dex组肌注Dex,0.25ms/100g,NC组给予等体积的生理盐水,1周2次,共给药90d。取胫骨分析皮质骨及松质骨的形态变化,股骨行骨生物力学检测。结果:Dex组皮质骨骨量明显低于NC组,骨髓腔增大(P〈0.05);Dex降低骨内、外膜骨形成及矿化,但促进了骨内膜的骨吸收;Dex没有弱化股骨的力学性能。结论:长期、间断使用Dex,仅使皮质骨丢失,其几何形状的变化并不改变生物力学的性能,提示长期、间断使用Dex可以减轻该药对骨骼的不良影响。

关 键 词:地塞米松  骨形态计量学  骨生物力学

Effects of long-term and intermittent use of the Dexamethasone on rat bone
LU Li,WANG Xiuli,CAI Huining,CHEN Jun,YANG Guozhu,CHENG Qing,LI Qingnan.Effects of long-term and intermittent use of the Dexamethasone on rat bone[J].China Medical Herald,2011,8(23):5-6.
Authors:LU Li  WANG Xiuli  CAI Huining  CHEN Jun  YANG Guozhu  CHENG Qing  LI Qingnan
Institution:LU Li1,WANG Xiuli2,CAI Huining1,CHEN Jun1,YANG Guozhu1,CHENG Qing1,LI Qingnan1* 1.School of Life Science and Biopharmacy,Guangdong Pharmaceutical University,Guangzhou 510006,China,2.Depart-ment of Outpatient,Beijing Navy Hospital,Beijing 100048
Abstract:Objective: To study the long-term and intermittent use of the Dexamethasone(Dex) on rat bone.Methods: 20 cases of male SD rats were randomly divided into Dex group and normal control group(NC group).Dex group were given Dex by intramuscular,0.25 mg/100 g,NC group were given physiological saline with the same volume.Twice a week last-ing for 90 days.The tibia was taken for bone histomorphometry,and the femur were taken for bone biomechanical experi-ment.Results: Dex was found to significantly reduce cortical...
Keywords:Dexamethasone  Bone histmorphmetry  Bone biomechanics  
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