低强度脉冲式超声波对大鼠软骨细胞增殖和基质合成的影响

被引:4
作者
蒋恺 [1 ,2 ]
崔维顶 [1 ]
任科伟 [1 ]
黄宇旻 [1 ]
范卫民 [1 ]
机构
[1] 南京医科大学第一附属医院骨科
[2] 上海市松江区中心医院骨科
关键词
软骨细胞; 低强度脉冲式超声波; 聚合素; Ⅱ型胶原;
D O I
10.19460/j.cnki.0253-3685.2011.12.009
中图分类号
R329 [人体组织学];
学科分类号
100107 [人体解剖与组织胚胎学(人体解剖学、组织与胚胎学)];
摘要
目的探讨低强度脉冲式超声波(LIPUS)对体外培养大鼠软骨细胞增殖和细胞外基质合成的影响。方法将第2代SD大鼠关节软骨细胞随机分为对照组和实验组。实验组在培养过程中给予LIUPS刺激,强度30 mW/cm2,频率1.5 MHz,脉冲宽度200μs,脉冲重复频率1.0 kHz,作用20 min后细胞继续培养2 d。采用细胞计数试剂盒8检测软骨细胞的增殖,通过RT-PCR法检测软骨细胞中聚合素与Ⅱ型胶原的表达。结果与对照组相比,实验组细胞增殖明显增高(P<0.05),聚合素与Ⅱ型胶原的表达显著上调(P<0.05)。结论 LIPUS能够促进软骨细胞的增殖,增强Ⅱ型胶原、聚合素表达。
引用
收藏
页码:1391 / 1393
页数:3
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