Gene expression profiling studies of aging in cardiac and skeletal muscles.

Gene expression profiling studies of aging in cardiac and skeletal muscles.
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心肌和骨骼肌衰老的基因表达谱研究。

DOI:
10.1016/j.cardiores.2005.01.005
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发表时间:
2005
期刊:
Cardiovascular research.
影响因子:
--
通讯作者:
Prolla,TomasA
Prolla,TomasA
中科院分区:
--
文献类型:
--
作者:
Park,Sang-Kyu;Prolla,TomasA

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为了检查骨骼肌和心脏与衰老相关的转录变化,我们和其他人使用DNA微阵列来比较年轻和老年动物的基因表达谱。衰老导致每个组织特有的不同基因表达模式,大多数改变可以完全或部分通过心肌和骨骼肌的热量限制(CR)来防止。卡路里限制动物组织的转录模式表明,CR通过减少内源性损伤和诱导与特定转录谱相关的代谢变化来延缓衰老过程。这些研究表明,DNA微阵列可以用于心血管衰老研究,产生数百个转录生物标志物的面板,提供一种新的工具来测量心肌和骨骼肌的生物年龄,并测试旨在延缓这些组织衰老的干预措施。
To examine transcriptional alterations associated with aging in skeletal muscle and the heart, we and others have used DNA microarrays to compare the gene expression profile of young and old animals. Aging results in a differential gene expression pattern specific to each tissue, and most alterations can be completely or partially prevented by caloric restriction (CR) in both heart and skeletal muscle. Transcriptional patterns of tissues from calorie-restricted animals suggests that CR retards the aging process by reducing endogenous damage and by inducing metabolic shifts associated with specific transcriptional profiles. These studies demonstrate that DNA microarrays can be used in cardiovascular aging research to generate panels of hundreds of transcriptional biomarkers, providing a new tool to measure biological age of cardiac and skeletal muscles and to test interventions designed to retard aging in these tissues.
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