中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (29): 4284-4289.doi: 10.3969/j.issn.2095-4344.2016.29.004

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

低强度脉冲式超声对关节软骨的修复

刘  洋1,刘  宁1,刘昭铭1,郝振民1,王东来2   

  1. 1哈励迅国际和平医院,河北省衡水市  053000;2河北医科大学第四医院骨科,河北省石家庄市  050000
  • 收稿日期:2016-05-16 出版日期:2016-07-08 发布日期:2016-07-08
  • 通讯作者: 刘洋,主治医师,哈励迅国际和平医院,河北省衡水市 053000
  • 作者简介:刘洋,男,1980年生,河北省深州市人,汉族,2004年华北理工大学毕业,主治医师,主要从事超声介入及腹部超声研究。
  • 基金资助:

    国家自然科学基金(81572022)

Effects of low-intensity pulsed ultrasound for articular cartilage repair

Liu Yang1, Liu Ning1, Liu Zhao-ming1, Hao Zhen-min1, Wang Dong-lai2   

  1. 1Halison International Peace Hospital, Hengshui 053000, Hebei Province, China; 2Department of Orthopedics, Fourth Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
  • Received:2016-05-16 Online:2016-07-08 Published:2016-07-08
  • Contact: Liu Yang, Attending physician, Halison International Peace Hospital, Hengshui 053000, Hebei Province, China
  • About author:Liu Yang, Attending physician, Halison International Peace Hospital, Hengshui 053000, Hebei Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81572022

摘要:

文章快速阅读:

文题释义:
低强度脉冲超声:利用输出强度小于0.1 W/cm2的脉冲超声作用于人体一定的病变部位,影响细胞的物质代谢过程,加速代谢产物的排出,改善细胞缺血、缺氧状态,改善组织的营养,提高细胞组织的再生能力,从而达到治疗疾病的目的。
关节软骨:软骨细胞可分泌蛋白多糖以及胶原纤维等,在正常情况下,通过一定的分泌作用,软骨细胞可以维护正常的细胞间质成分质量,但在受到损伤之后,软骨细胞会发生退变甚至坏死,导致蛋白多糖和胶原纤维的减少甚至消失,进而影响到软骨细胞的成活。

摘要
背景:
多种原因会导致关节软骨损伤的出现,常规治疗大多无法获得理想的效果。研究表明,低强度脉冲式超声在促进损伤关节软骨修复方面具有重要的作用。
目的:进一步验证低强度脉冲式超声对关节软骨损伤的修复效果。
方法:20只新西兰白兔均建立膝关节炎模型,随机分为2组,每组10只。观察组实施低强度脉冲式超声治疗;对照组予以假低强度脉冲式超声治疗。治疗后8 周,收集两组取关节软骨组织,进行病理学观察和软骨组织学评分,观察软骨细胞超微结构和Ⅱ型胶原表达情况,并利用qRT-PCR法检测软骨细胞基质金属蛋白酶13表达情况。
结果与结论:治疗8周后,①经甲苯胺蓝染色和病理学观察,对照组细胞排列紊乱,每层均可见软骨细胞减少以及簇集情况;观察组软骨细胞排列轻度异常,浅层细胞的出现减少以及簇集现象;②经软骨组织学评分:观察组各项评分均显著低于对照组(均P < 0.05);③超微结构:对照组软骨细胞较小,胞内线粒体、粗面内质网出现明显的扩张现象,胞浆肿胀,胶原原纤维粗大、高尔基体发达,核质碎裂。细胞器正常结构消失,细胞呈变性改变。观察组软骨细胞大小与高尔基复合体等细胞器均呈现出正常状态,胞内与膜周围均可观察到蛋白多糖颗粒;④基质金属蛋白酶13 表达:观察组量显著低于对照组(P < 0.05);⑤免疫细胞化学染色:观察组Ⅱ型胶原阳性的棕黄色异染颗粒明显多于对照组;⑥不良反应:所有动物均未出现切口感染、化脓、红肿等情况。⑦结果表明,低强度脉冲式超声治疗关节软骨损伤可以延缓Ⅱ型胶原降解,抑制基质金属蛋白酶13 的表达,获得理想的软骨修复效果。

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
ORCID: 0000-0001-5218-9034(刘洋)

关键词: 组织构建, 软骨组织工程, 低强度脉冲式超声, 关节软骨;软骨细胞;软骨修复;Ⅱ型胶原;基质金属蛋白酶13;国家自然科学基金

Abstract:

BACKGROUND: Articular cartilage injuries can result from a variety of causes. Conventional therapy cannot obtain the optimal clinical results. Low-intensity pulsed ultrasound has been shown to promote the repair of injured articular cartilage.
OBJECTIVE: To investigate the effects of low-intensity pulsed ultrasound on the repair of injured articular cartilage.
METHODS: Twenty New Zealand white rabbits were used to establish knee arthritis models and equally randomized into study and control groups, respectively. Rabbits in the study group received low-intensity pulsed ultrasound treatment, and sham low-intensity pulsed ultrasound treatment was given in the control group. At 8 weeks after treatment, pathological change and histological scores in articular cartilage tissue collected from both groups were determined. Moreover, the ultrastructure and type II collagen expression of chondrocytes were determined. Matrix metalloproteinase-13 mRNA expression was detected by quantitative real-time PCR.
RESULTS AND CONCLUSION: At 8 weeks after treatment, toluidine blue staining showed a disordered arrangement of cells, decreased number of cartilage cells in each layer and cluster in the control group. Light disordered arrangement of cells, decreased appearance of the superficial layer cells and the cluster phenomenon were observed in the study group. Articular cartilage tissue scores were significantly decreased in the study group compared with the control group (P < 0.05). The chondrocytes were small, enlarged intracellular mitochondria and rough endoplasmic reticulum, cytoplasmic swelling, collagen fibrils coarse, well developed Golgi apparatus, and nuclear fragmentation were observed in the control group. In addition, the normal structure of organelles disappeared and cell degeneration was observed in the control group. In the study group, the size of chondrocytes and the Golgi complex and other organelles were normal, and the protein polysaccharide granules were observed in the cytoplasm and membrane. The mRNA expression of matrix metalloproteinase-13 in the study group was significantly lower than that in the control group (P < 0.05). Type II collagen immunoreactivity in the study group was stronger than that in the control group. No incision infection, suppuration, red swelling appeared in all rabbits. Our results suggest that low-intensity pulsed ultrasound can be used for the treatment of articular cartilage injury by alleviating the degradation of collagen type II and inhibiting the expression of matrix metalloproteinase-13.

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

Key words: Ultrasonic Therapy, Cartilage, Articular, Chondrocytes, Collagen Type II, Tissue Engineering