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Siarhei A Dabravolski, Nikita G Nikiforov, Alexander D Zhuravlev, Nikolay A Orekhov, Andrey V Grechko, Alexander N Orekhov

Int J Mol Sci. 2022 Jan 25;23(3):1323. doi: 10.3390/ijms23031323.


Ageing is an unavoidable multi-factorial process, characterised by a gradual decrease in physiological functionality and increasing vulnerability of the organism to environmental factors and pathogens, ending, eventually, in death. One of the most elaborated ageing theories implies a direct connection between ROS-mediated mtDNA damage and mutations. In this review, we focus on the role of mitochondrial metabolism, mitochondria generated ROS, mitochondrial dynamics and mitophagy in normal ageing and pathological conditions, such as inflammation. Also, a chronic form of inflammation, which could change the long-term status of the immune system in an age-dependent way, is discussed. Finally, the role of inflammaging in the most common neurodegenerative diseases, such as Alzheimer's and Parkinson's, is also discussed.


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