中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (31): 4998-5004.doi: 10.3969/j.issn.2095-4344.1458

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

杜仲摄入结合振动训练干预去卵巢联合地塞米松骨质疏松模型大鼠骨密度、骨代谢及骨生物力学的变化

王潇潇1,罗之柱2,刘昊为2   

  1.  (1重庆理工大学体育教学部,重庆市  400054;2西南大学体育学院,重庆市  400715)
  • 收稿日期:2019-03-17 出版日期:2019-11-08 发布日期:2019-11-08
  • 作者简介:王潇潇,男,1982年生,浙江省江山市人,汉族,2008年西南大学毕业,硕士,讲师,主要从事运动与骨健康方面的研究。
  • 基金资助:

    中央高校基本业务专项资金项目(SWU1809221),项目参与人:刘昊为

Changes of bone mineral density, bone metabolism and biomechanics in rat models of ovariectomy and dexamethasone-induced osteoporosis treated by Eucommia ulmoides combined with vibration training 

Wang Xiaoxiao1, Luo Zhizhu2, Liu Haowei2   

  1.  (1Department of Physical Education, Chongqing University of Technology, Chongqing 400054, China; 2School of Sports, Southwest University, Chongqing 400715, China)
  • Received:2019-03-17 Online:2019-11-08 Published:2019-11-08
  • About author:Wang Xiaoxiao, Master, Lecturer, Department of Physical Education, Chongqing University of Technology, Chongqing 400054, China
  • Supported by:

    the Central University Basic Business Foundation, No. SWU1809221 (to LHW)

摘要:

文章快速阅读:

文题释义:
振动训练:该方法最早起源于帕金森症患者的康复治疗。通过振动平台产生以垂直方向为主的谐波正振动。20世纪初期开始应用于体育健身领域,在振动状态下能以较小的负荷取得较高的训练效益。能够促进肌肉募集速度、增加肌纤维横截面积、增强本体感觉和神经肌肉控制能力。近年也被用于骨质疏松治疗,被公认为是“高效训练手段”。
地塞米松:是一种人工合成的皮质类固醇,为常用糖皮质激素。可用于治疗风湿病、皮肤病、过敏反应、哮喘、脑水肿等。长期服用糖皮质激素可通过多条途径抑制成骨和促进破骨导致骨重建失去动态平衡,使得骨的吸收大于骨的形成,导致备骨量低下、骨微细结构破坏、骨脆性增加、容易发生骨折,最终发生骨质疏松。
摘要
背景:
妇女绝经后长期使用糖皮质激素的概率高于其他阶段,发生骨质疏松的概率也显著升高,利用运动搭配传统中药预防和治疗骨质疏松的发生逐渐被临床所采用。
目的:探讨摄入杜仲提取物搭配全身振动训练对去卵巢联合地塞米松骨质疏松大鼠骨密度、骨代谢、骨生物力学性能的影响。
方法:购入80只雌性SD大鼠,随机分为骨质疏松模型组和假手术组,骨质疏松模型组大鼠进行卵巢切除术和地塞米松摄入,假手术组进行假手术和安慰剂摄入,整个造模过程为期6周。造模结束后将骨质疏松模型组大鼠随机分为模型对照组、全身振动组、杜仲摄入组、杜仲摄入+全身振动组,进行12周的治疗方案干预;12周干预结束后24 h内,将全部大鼠分开放置到代谢笼中进行24 h尿液采集,次日对全部大鼠取血,进行骨代谢分析后麻醉处死大鼠,取左侧股骨进行骨扫描和骨生物力学测试。
结果与结论:①正式干预前,模型对照组、全身振动组、杜仲摄入组、杜仲摄入+全身振动组大鼠体质量显著高于假手术组(P < 0.05);在干预结束后,全身振动组、杜仲摄入组、杜仲摄入+全身振动组大鼠体质量显著低于模型对照组(P < 0.05),模型对照组、全身振动组、杜仲摄入组、杜仲摄入+全身振动组大鼠体质量显著高于假手术组(P < 0.05);②模型对照组大鼠的股骨骨密度、血清雌二醇水平低于假手术组、全身振动组、杜仲摄入组、杜仲摄入+全身振动组大鼠,且差异有显著性意义(P < 0.05);③血清骨钙素、碱性磷酸酶浓度及尿液脱氧吡啶、钙、磷水平方面,模型对照组大鼠高于假手术组、全身振动组、杜仲摄入组和杜仲摄入+全身振动组,差异有显著性意义(P < 0.05);④最大应力、最大载荷方面,模型对照组大鼠低于假手术组、全身振动组、杜仲摄入组和杜仲摄入+全身振动组,差异有显著性意义(P < 0.05);⑤弹性模量方面,模型对照组大鼠高于假手术组、全身振动组、杜仲摄入组和杜仲摄入+全身振动组,差异有显著性意义(P < 0.05);⑥提示摄入杜仲提取物、全身振动训练、摄入杜仲提取物联合全身振动训练等方案能够明显提高去卵巢大鼠联合地塞米松骨质疏松大鼠的骨密度,增强股骨的生物力学性能,改善骨代谢指标。

关键词: 骨质疏松, 糖皮质激素, 杜仲, 全身振动训练, 骨密度, 生物力学, 骨钙素, 碱性磷酸酶

Abstract:

BACKGROUND: Long-term use of glucocorticoids in women after menopause is higher than other stages, and the incidence of osteoporosis is significantly increased. The use of exercise combined with traditional Chinese medicine to prevent and treat osteoporosis has gradually been adopted in the clinic.
OBJECTIVE: To investigate the effects of Eucommia ulmoides extract combined with whole body vibration training on bone mineral density, bone metabolism and bone biomechanical properties in ovariectomized dexamethasone-induced osteoporotic rats.
METHODS: Eighty female Sprague-Dawley rats were purchased and were randomly divided into model and sham groups. The rats in the model group underwent oophorectomy and dexamethasone. The rats in the sham group received sham operation and placebo intake. The modeling process was completed for 6 weeks. After the modeling, the osteoporotic rats were randomly divided into model control group, whole body vibration group, Eucommia ingestion group, and Eucommia inhalation + whole body vibration group, and 12 weeks of intervention was conducted. Within 24 hours after the end of intervention, all rats were placed in a metabolic cage for 24-hour urine collection. The next day, blood sample was collected, and all rats were sacrificed after analyzing bone metabolism. The left femur was scanned and bone biomechanical properties were detected.
RESULTS AND CONCLUSION: (1) Before intervention, the rat body mass in the sham group was significantly lower than that in the other groups (P < 0.05). After intervention, the body mass in the whole body vibration, Eucommia ingestion and Eucommia inhalation + whole body vibration groups was significantly lower than that in the model control group (P < 0.05). The body mass in the model control, whole body vibration, Eucommia ingestion and Eucommia inhalation + whole body vibration groups was significantly higher than that in the sham group (P < 0.05). (2) The femoral bone mineral density and serum estradiol level in the model control group were significantly lower than those in the sham, whole body vibration, Eucommia ingestion and Eucommia inhalation + whole body vibration groups (P < 0.05). (3) Serum osteocalcin, alkaline phosphatase concentration, urine deoxypyridoline, Ca2+, and P3+ in the model control group were significantly higher than those in the sham, whole body vibration, Eucommia ingestion and Eucommia inhalation + whole body vibration groups (P < 0.05). (4) The maximum stress and maximum load in model control group were significantly lower than those in the sham, whole body vibration, Eucommia ingestion and Eucommia inhalation + whole body vibration groups (P < 0.05). (5) The elastic modulus in the model control group was significantly higher than those in the sham, whole body vibration, Eucommia ingestion and Eucommia inhalation + whole body vibration groups (P < 0.05). (6) To conclude, ingestion of Eucommia ulmoides extract, whole body vibration training, ingestion of Eucommia ulmoides extract combined with whole body vibration training can significantly improve the bone mineral density of ovariectomized rats combined with dexamethasone- induced osteoporosis, enhance the biomechanical properties of the femur, and improve bone metabolism indicators.

Key words: osteoporosis, glucocorticoids, Eucommia ulmoides, whole body vibration training, bone mineral density, biomechanics, osteocalcin, alkaline phosphatase

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