Skeletal muscle mitochondrial energetic efficiency and aging.

Skeletal muscle mitochondrial energetic efficiency and aging.
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DOI:
10.3390/ijms160510674
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发表时间:
2015-05-11
影响因子:
5.6
通讯作者:
Iossa S
Iossa S
中科院分区:
生物学2区
文献类型:
--
作者:
Crescenzo R;Bianco F;Mazzoli A;Giacco A;Liverini G;Iossa S

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衰老与最大细胞功能的逐渐丧失有关,线粒体被认为是衰老过程中的关键因素,因为它们决定了细胞中ATP的可用性。据报道,骨骼肌老化过程中线粒体的表现要么减少,要么不变。结果的这种异质性可能部分归因于用于评估线粒体性能的方法。此外,在骨骼肌中,线粒体群体是异质的,由肌膜下和肌原纤维间线粒体组成。因此,本综述的目的是总结在衰老过程中上述线粒体群体的功能上获得的结果,考虑到线粒体的性能取决于细胞器数量,细胞器活性和能量效率的线粒体机器在合成ATP从燃料的氧化。
Aging is associated with a progressive loss of maximal cell functionality, and mitochondria are considered a key factor in aging process, since they determine the ATP availability in the cells. Mitochondrial performance during aging in skeletal muscle is reported to be either decreased or unchanged. This heterogeneity of results could partly be due to the method used to assess mitochondrial performance. In addition, in skeletal muscle the mitochondrial population is heterogeneous, composed of subsarcolemmal and intermyofibrillar mitochondria. Therefore, the purpose of the present review is to summarize the results obtained on the functionality of the above mitochondrial populations during aging, taking into account that the mitochondrial performance depends on organelle number, organelle activity, and energetic efficiency of the mitochondrial machinery in synthesizing ATP from the oxidation of fuels.
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