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目的:运用基因芯片技术研究6周有氧跑台运动对C57BL/6小鼠骨骼肌基因表达的影响,探究长期有氧运动引起小鼠骨骼肌组织的适应性改变.方法:本研究采用雄性C57BL/6小鼠20只,随机分为安静对照组(C)和有氧运动组(E),每组10只.运动组采用75%最大摄氧量强度的有氧跑台运动,1次/天,60分/次,5次/周,为期6周.实验后各组随机选取4只小鼠骨骼肌进行基因芯片分析.分离小鼠股四头肌,提取总RNA,经荧光标记后进行芯片杂交,利用芯片扫描仪记录荧光信号,并利用相关软件对所得数据进行分析,以发现组间差异表达具有显著性的基因.结果:6周有氧运动后,与对照组相比,有氧运动组共筛选出差异表达基因723个,其中,表达上调基因510个,表达下调基因213个;钙信号通路相关差异表达基因6个,其中Gnall和Pdgfra表达上调,Phka1、Plcd4、RYR1和Ppid表达下调.“,”Objective To study the effects of 6-week aerobic treadmill exercise on the genes expression in skeletal muscle of C57BL/6 mice.Gene array was performed and the data was analyzed to evaluate the adaptive changes at gene level caused by exercise.Methods Twenty male C57BL/6 mice were randomly divided into two groups:control group(C) and aerobic exercise group (E).The mice from group E were forced to run on treadmill for 6 weeks.After 6 weeks,all mice were fasted for 16 hours,and then sacrificed.Their flexor muscle was removed.4 samples from each group were analyzed with gene chips to dissect the differentially expressed genes between the two groups.Results Our results showed that 723 genes were differentially expressed in E group as compared with C group after the 6 weeks aerobic exercise,among which 510 genes were up-and 213 down-regulated.There were 6 differentially expressed calcium signaling genes and 2 ofwhich(Gnall and Pdgfra) were up-regulated,while the others(Phka1,Picd4,RYR1 and Ppid)were down regulated.