Brain aging and neurodegeneration: from a mitochondrial point of view

被引：458

作者：

Grimm, Amandine ^{[1
,2
]}

Eckert, Anne ^{[1
,2
]}

机构：

[1] Univ Basel, Transfac Res Platform, Mol & Cognit Neurosci Neurobiol Lab Brain Aging &, Wilhelm Klein Str 27, CH-4002 Basel, Switzerland

[2] Univ Basel, Psychiat Univ Clin, Basel, Switzerland

来源：

JOURNAL OF NEUROCHEMISTRY | 2017年 / 143卷 / 04期

基金：

瑞士国家科学基金会;

关键词：

aging; bioenergetics; brain; Mitochondria; mitochondrial dynamics;

D O I：

10.1111/jnc.14037

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

070307 [化学生物学]; 071010 [生物化学与分子生物学];

摘要：

Aging is defined as a progressive time-related accumulation of changes responsible for or at least involved in the increased susceptibility to disease and death. The brain seems to be particularly sensitive to the aging process since the appearance of neurodegenerative diseases, including Alzheimer's disease, is exponential with the increasing age. Mitochondria were placed at the center of the free-radical theory of aging', because these paramount organelles are not only the main producers of energy in the cells, but also to main source of reactive oxygen species. Thus, in this review, we aim to look at brain aging processes from a mitochondrial point of view by asking: (i) What happens to brain mitochondrial bioenergetics and dynamics during aging? (ii) Why is the brain so sensitive to the age-related mitochondrial impairments? (iii) Is there a sex difference in the age-induced mitochondrial dysfunction? Understanding mitochondrial physiology in the context of brain aging may help identify therapeutic targets against neurodegeneration.

引用

页码：418 / 431

页数：14

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