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| 1 | Control mechanisms in mitochondrial oxidative phosphorylation显示文摘Distribution and activity of mitochondria are key factors in neuronal development,synaptic plasticity and axogenesis.The majority of energy sources,necessary for cellular functions,originate from oxidative phosphorylation located in the inner mitochondrial membrane.The adenosine-5'triphosphate production is regulated by many control mechanism-firstly by oxygen,substrate level,adenosine-5'-diphosphate level,mitochondrial membrane potential,and rate of coupling and proton leak.Recently,these mechanisms have been implemented by 'second control mechanisms,' such as reversible phosphorylation of the tricarboxylic acid cycle enzymes and electron transport chain complexes,allosteric inhibition of cytochrome c oxidase,thyroid hormones,effects of fatty acids and uncoupling proteins.Impaired function of mitochondria is implicated in many diseases ranging from mitochondrial myopathies to bipolar disorder and schizophrenia.Mitochondrial dysfunctions are usually related to the ability of mitochondria to generate adenosine-5'-triphosphate in response to energy demands.Large amounts of reactive oxygen species are released by defective mitochondria,similarly,decline of antioxidative enzyme activities(e.g.in the elderly) enhances reactive oxygen species production.We reviewed data concerning neuroplasticity,physiology,and control of mitochondrial oxidative phosphorylation and reactive oxygen species production. | Jana Hroudová Zdeněk Fisar | 2013 | Neural Regeneration Research2013，8，4： | 2 |
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