中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (20): 3144-3149.doi: 10.3969/j.issn.2095-4344.3188

• 肌肉肌腱韧带组织构建 tissue construction of the muscle, tendon and ligament • 上一篇    下一篇

绝经后女性髋部骨折患者骨骼肌肌纤维特点与骨密度的相关性

蔺海山,米尔阿里木•木尔提扎,李  鹏,马  超,王  利   

  1. 新疆维吾尔自治区人民医院骨科中心关节老年病区,新疆维吾尔自治区乌鲁木齐市   830001
  • 收稿日期:2020-04-07 修回日期:2020-04-11 接受日期:2020-06-12 出版日期:2021-07-18 发布日期:2021-01-15
  • 通讯作者: 王利,主任医师,新疆维吾尔自治区人民医院骨科中心关节老年病区,新疆维吾尔自治区乌鲁木齐市 830001
  • 作者简介:蔺海山,男,1995年生,甘肃省高台县人,汉族,石河子大学在读硕士,医师,主要从事关节置换、骨科创伤、老年骨质疏松性骨折的研究。
  • 基金资助:
    新疆维吾尔自治区自然科学基金-面上项目(2017D01C127),项目负责人:王利

Correlation between skeletal muscle fiber characteristics and bone mineral density in postmenopausal women with hip fractures

Lin Haishan, Mieralimu Muertizha, Li Peng, Ma Chao, Wang Li   

  1. Geriatric Ward of Orthopedics, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, Xinjiang Uygur Autonomous Region, China
  • Received:2020-04-07 Revised:2020-04-11 Accepted:2020-06-12 Online:2021-07-18 Published:2021-01-15
  • Contact: Wang Li, Chief physician, Geriatric Ward of Orthopedics, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, Xinjiang Uygur Autonomous Region, China
  • About author:Lin Haishan, Master candidate, Physician, Geriatric Ward of Orthopedics, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, Xinjiang Uygur Autonomous Region, China
  • Supported by:
    the Natural Science Foundation of Xinjiang Uygur Autonomous Region (General Project), No. 2017D01C127 (to WL)

摘要:

文题释义:
四肢骨骼肌指数(appendicular skeletal muscle mass index,ASMI):是指用四肢骨骼肌质量(kg)除以身高平方(m2),是评估四肢肌肉含量的指标,也可用来诊断“骨骼肌肉减少症”。
Ⅱ型肌纤维细胞:含有较多糖酵解酶,主要涉及无氧代谢。研究认为,骨骼肌毛细血管减少会影响卫星细胞对受损骨骼肌的修复和重塑能力,这种现象在Ⅱ型肌纤维细胞中更为显著。骨骼肌Ⅱ型肌纤维数目减少以及肌细胞体积缩小可能是引起肌肉减少的主要因素。

背景:研究认为,肌纤维直径减小和数目减少与肌肉萎缩相关,尤其与Ⅱ型肌纤维关系最为密切。
目的:分析绝经后髋部骨折女性患者骨骼肌肌纤维分布特点与骨密度的相关性。  
方法:纳入因髋部骨折行手术治疗的绝经后女性患者60例的临床资料,通过双能X射线(DXA)检查测量患者骨密度和肌肉含量,并计算四肢骨骼肌指数(ASMI)。根据骨质疏松诊断标准,将患者分为骨量正常、骨量减少、骨质疏松、严重骨质疏松组,每组15例。术中取患者臀中肌肌纤维,染色后镜下观察肌纤维直径及分布特点;检查肌肉含量及健侧股骨颈骨密度;采用Pearson相关分析患者肌纤维直径、骨骼肌含量等指标与健侧股骨颈骨密度的相关性。研究方案已获得新疆维吾尔自治区人民医院伦理委员会的批准,患者对试验过程完全知情同意。
结果与结论:①严重骨质疏松组全身肌肉含量与躯干肌肉含量显著低于其余3组(P < 0.05),但其余3组两两比较差异无显著性意义(P > 0.05);骨量正常组四肢肌肉含量显著高于骨质疏松组、严重骨质疏松组(P < 0.05),骨量减少组四肢肌肉含量高于严重骨质疏松组(P < 0.05);②严重骨质疏松组四肢骨骼肌指数显著低于骨量正常组、骨量减少组(P < 0.05);③绝经后女性髋部骨折患者股骨颈骨密度与年龄、体质量、Ⅱ型肌纤维直径具有一定的相关性;股骨颈骨密度与Ⅱ型肌纤维直径、四肢肌肉含量线性拟合R2分别为0.103,0.243;④结果表明,髋部骨折女性患者骨密度与年龄、体质量指数、肌肉含量不同部位(全身、四肢、躯干)、四肢骨骼肌指数ASMI具有密切相关性;Ⅱ型肌纤维直径大小、四肢肌肉含量与股骨颈骨密度具有正相关性,提示在绝经后老年女性髋部骨折的预防中应同时采用运动锻炼、加强营养、药物治疗的综合方案,提高骨量的同时改善肌肉质量。
https://orcid.org/0000-0001-5356-4211 (蔺海山) 

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

关键词: 骨, 骨折, 绝经后, 骨质疏松, 骨密度, 肌纤维, 肌肉减少症, 体质指数

Abstract: BACKGROUND: Studies have shown that reduced diameter and number of muscle fibers are related to muscle atrophy, especially type II muscle fibers.
OBJECTIVE: To explore the correlation between the distribution characteristics of skeletal muscle fibers and bone mineral density in postmenopausal women with hip fractures. 
METHODS: The clinical data of 60 female postmenopausal patients undergoing surgical treatment for hip fractures were included. Bone mineral density and muscle content were measured by dual energy X-ray, and the Appendicular Skeletal Muscle Mass Index (ASMI) was calculated. According to the diagnostic criteria for osteoporosis, the included patients were divided into four groups with normal bone mass, reduced bone mass, osteoporosis, and severe osteoporosis, with 15 cases in each group. During operation, the patient’s gluteus medius muscle fibers were taken, and their diameter and distribution characteristics were observed under a microscope after slicing, fixing, and staining. Muscle content and femoral neck bone density at the healthy side were tested. Pearson correlation analysis was used to analyze the correlation between muscle fiber diameter and skeletal muscle content at the affected side and the bone mineral density of the contralateral femoral neck. 
RESULTS AND CONCLUSION: The body muscle content and trunk muscle content of the severe osteoporosis group were significantly lower than those of the other three groups (P < 0.05), but there was no significant difference between the other three groups (P > 0.05). The muscle content of the limbs in the normal bone mass group was significantly higher than that in the osteoporosis group and severe osteoporosis group (P < 0.05), and the muscle content of the limbs in the reduced bone mass group was higher than that in the severe osteoporosis group (P < 0.05). The ASMI value of the limbs in the severe osteoporosis group was significantly lower than that in the normal bone mass group and reduced bone mass group (P < 0.05). The femoral neck bone mineral density of postmenopausal women with hip fractures had a certain correlation with age, body mass, and type II muscle fiber diameter. The linear fitting R2 of femoral neck bone density with type II muscle fiber diameter and muscle content of the limbs was 0.103 and 0.243, respectively. To conclude, the bone mineral density of female patients with hip fractures is closely related to age, body mass index, muscle content of different body parts (body, limbs, trunk), and ASMI. Type II muscle fiber diameter and muscle content of the limbs have a positive correlation with femoral neck bone mineral density, suggesting that in the prevention of hip fractures in postmenopausal elderly women, we should adopt a comprehensive program of exercise, nutrition and drug treatment to increase bone mass and improve muscle quality.

Key words: bone, fracture, postmenopausal, osteoporosis, bone mineral density, muscle fiber, sarcopenia, body mass index

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