alexa Mitochondrial energy metabolism and redox signaling in brain aging and neurodegeneration.


Bioenergetics: Open Access

Author(s): Yin F, Boveris A, Cadenas E

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Abstract SIGNIFICANCE: The mitochondrial energy-transducing capacity is essential for the maintenance of neuronal function, and the impairment of energy metabolism and redox homeostasis is a hallmark of brain aging, which is particularly accentuated in the early stages of neurodegenerative diseases. RECENT ADVANCES: The communications between mitochondria and the rest of the cell by energy- and redox-sensitive signaling establish a master regulatory device that controls cellular energy levels and the redox environment. Impairment of this regulatory devise is critical for aging and the early stages of neurodegenerative diseases. CRITICAL ISSUES: This review focuses on a coordinated metabolic network-cytosolic signaling, transcriptional regulation, and mitochondrial function-that controls the cellular energy levels and redox status as well as factors which impair this metabolic network during brain aging and neurodegeneration. FUTURE DIRECTIONS: Characterization of mitochondrial function and mitochondria-cytosol communications will provide pivotal opportunities for identifying targets and developing new strategies aimed at restoring the mitochondrial energy-redox axis that is compromised in brain aging and neurodegeneration.
This article was published in Antioxid Redox Signal and referenced in Bioenergetics: Open Access

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