中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (18): 2596-2602.doi: 10.3969/j.issn.2095-4344.2016.18.002

• 骨及关节损伤动物模型 Animal models of bone and joint injuries • 上一篇    下一篇

低强度脉冲超声干预膝关节炎模型兔软骨细胞Ⅱ型胶原和基质金属蛋白酶13的表达

吴建萍1,王志刚2,王黎明3   

  1. 滨州市人民医院,1特检科,2麻醉科,山东省滨州市 256610;3滨州医学院附属医院手足外科,山东省滨州市 256610
  • 收稿日期:2016-02-24 出版日期:2016-04-29 发布日期:2016-04-29
  • 通讯作者: 吴建萍,山东省滨州市人民医院特检科,山东省滨州市 256610
  • 作者简介:吴建萍,女,1979年生,汉族,山东省滨州市人,硕士,主治医师。

Effects of low intensity pulsed ultrasound on the expression of type II collagen and matrix metalloproteinase-13 in chondrocytes of a rabbit model of knee arthritis

Wu Jian-ping1, Wang Zhi-gang2, Wang Li-ming3   

  1. 1Special Inspection Branch, Binzhou People’s Hospital, Binzhou 256610, Shandong Province, China; 2Department of Anesthesiology, Binzhou People’s Hospital, Binzhou 256610, Shandong Province, China; 3Department of Hand and Foot Surgery, Affiliated Hospital of Binzhou Medical University, Binzhou 256610, Shandong Province, China
  • Received:2016-02-24 Online:2016-04-29 Published:2016-04-29
  • Contact: Wu Jian-ping, Special Inspection Branch, Binzhou People’s Hospital, Binzhou 256610, Shandong Province, China
  • About author:Wu Jian-ping, Master, Attending physician, Special Inspection Branch, Binzhou People’s Hospital, Binzhou 256610, Shandong Province, China

摘要:

文章快速阅读:

 

文题释义:
低强度脉冲超声:是指利用输出强度小于0.1 W/cm2的脉冲超声作用于人体病变部位,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。
膝关节炎:是一种以退行性病理改变为基础的疾患。多患于中老年人群,其症状多表现为膝盖红肿痛、上下楼梯痛、坐起立行时膝部酸痛不适等。也会有患者表现肿胀、弹响、积液等,如不及时治疗,则会引起关节畸形,残废。在膝关节部位还常患有膝关节滑膜炎、韧带损伤、半月板损伤、膝关节游离体、腘窝囊肿、髌骨软化、鹅足滑囊炎、膝内/外翻等关节疾病。
 
背景:低强度脉冲超声安全无创、穿透性强,近年来,越来越多的研究表明,低强度脉冲超声在促进损伤关节软骨修复方面具有重要的作用。
目的:观察低强度脉冲超声对膝关节炎模型兔软骨细胞Ⅱ型胶原和基质金属蛋白酶13表达的影响。
方法:纳入20只新西兰白兔,均建立膝关节炎模型,建模后随机分为对照组和实验组,每组10只。实验组动物右侧膝关节利用超声波骨折愈合仪进行低强度脉冲超声治疗,对照组动物予以右侧膝关节假低强度脉冲超声治疗。干预后8 周,取胫骨内侧端以及膝关节股骨内侧端软骨组织,经常规处理后,进行甲苯胺蓝染色,并置于显微镜下进行病理学观察,利用 qRT-PCR法软骨细胞基质金属蛋白酶13 和Ⅱ型胶原表达量检测。观察实验动物一般情况和关节软骨病理形态,以及基质金属蛋白酶13、Ⅱ型胶原的 qRT-PCR检测结果。
结果与结论:①甲苯胺蓝染色和病理学观察:治疗 8 周后,对照组关节软骨出现明显的裂隙,并从表面延伸至深层,且存在严重的染色缺失现象;实验组可观察到关节软骨表面形成裂隙,存在中度染色缺失现象;②qRT-PCR检测:软骨细胞培养5,10 d后,实验组和对照组相同时间点基质金属蛋白酶13和Ⅱ型胶原基因表达差异均有显著性意义(P < 0.05);③结果证实:低强度脉冲超声可调节膝关节炎模型兔软骨细胞Ⅱ型胶原和基质金属蛋白酶13基因的表达。
中国组织工程研究杂志出版内容重点:肾移植;肝移植;移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植;组织工程
ORCID: 0000-0002-5647-1173(吴建萍)

关键词: 实验动物, 骨软骨损伤与修复动物模型, 低强度脉冲超声, 膝关节炎, 动物模型, 软骨细胞, Ⅱ型胶原, 基质金属蛋白酶13, 基因

Abstract:

BACKGROUND: Low intensity pulsed ultrasound is safe, non-invasive, and has strong penetration. In recent years, more and more studies have indicated that low intensity pulsed ultrasound has important role in promoting the repair of damaged articular cartilage.

OBJECTIVE: To investigate the effect of low intensity pulsed ultrasound on the expression of type II collagen and matrix metalloproteinase 13 in articular cartilage of rabbits of knee arthritis.
METHODS: A total of 20 New Zealand white rabbits were included in this study to establish knee arthritis model. All models were randomly divided into control group and experimental group, 10 rats in each group. In the experimental group, the right knee joint received low intensity pulsed ultrasound treatment with an ultrasonic fracture healing instrument. In the control group, right knee joint received false low intensity pulsed ultrasound therapy. At 8 weeks after intervention, cartilage tissue was collected from medial end of tibia and medial end of femur. After conventional treatment, toluidine blue staining was performed. Pathological observation was conducted under a microscope. Quantitative real-time polymerase chain reaction was used to detect matrix metalloproteinase 13 and type II collagen expression in chondrocytes. The general situation of the experimental animals was observed. The results of articular cartilage and the quantitative real-time polymerase chain reaction results of matrix metalloproteinase-13 and type II collagen were observed under a microscope. 
RESULTS AND CONCLUSION: (1) Toluidine blue staining and pathological observation: 8 weeks after treatment, obvious fissure appeared in articular cartilages, and extending from the surface to the deep layer in the control group, and there was a lack of staining. In the experimental group, cracks formed on articular cartilage surface, and there was a moderate staining missing. (2) Quantitative real-time polymerase chain reaction: at 5 and 10 days after culture, significant differences in gene expression of matrix metalloproteinase-13 and type II collagen were detected at various time points in the experimental and control groups (P < 0.05). (3) The results showed that the low intensity pulsed ultrasound could affect the gene expression of matrix metalloproteinase-13 and type II collagen in the rabbit model of knee arthritis. 
中国组织工程研究杂志出版内容重点:肾移植;肝移植;移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植;组织工程

Key words: Tissue Engineering, Models, Animal, Knee Arthritis