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Effect of exercise on hepatic gene expression in rats: a microarray analysis

机译:运动对大鼠肝基因表达的影响:微阵列分析

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Exercise has various beneficial effects on liver function, enhancing both nutrient metabolism and antioxidant capacity. To explore the molecular mechanisms underlying these changes, we used a high-density cDNA microarray containing probe sets for 2,845 genes to analyze changes of gene transcription in the livers of rats after 4 weeks of running exercise. In comparison with sedentary animals, 105 genes were up-regulated and 86 genes were down-regulated, including genes with unknown functions. In addition, we detected an increase of p38 mitogen-activated protein kinase and protein and of the protein for signal transducer and activator of transcription 3 (stat3), corresponding to the increase of these mRNAs shown by microarray analysis. These results indicate that long-term exercise can alter liver function via changes of gene expression, especially the genes encoding signal transduction proteins such as p38 and stat3. (C) 2004 Elsevier Inc. All rights reserved.
机译:运动对肝功能有多种有益作用,既增强营养代谢又增强抗氧化能力。为了探索这些变化的潜在分子机制,我们使用了包含2845个基因的探针集的高密度cDNA微阵列,分析了跑步4周后大鼠肝脏中基因转录的变化。与久坐的动物相比,上调了105个基因,下调了86个基因,包括功能未知的基因。此外,我们检测到p38丝裂原激活的蛋白激酶和蛋白以及信号转导和转录激活因子3(stat3)的蛋白增加,与微阵列分析显示的这些mRNA的增加相对应。这些结果表明,长期锻炼可以通过基因表达的改变来改变肝功能,尤其是编码信号转导蛋白如p38和stat3的基因。 (C)2004 Elsevier Inc.保留所有权利。

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