Evaluation of Electroencephalographic Biomarkers in Physiological Aging

Aging is the inevitable biological process that results in a progressive structural and functional decline from the cellular level to whole body function. It is associated with functional changes in the resting brain activity, brain morphology, plasticity, complexity and function. Moreover, aging is the main risk factor for neurodegenerative disease. Understanding the molecular mechanisms underlying the age-related neurophysiological changes and identifying novel biomarkers of healthy brain ageing is thus instrumental for the development of efficient interventions against age-related motor/cognitive impairments. Within this context, there is now a significant literature establishing the enhanced efficacy of secreted exosomes over the stem cells from which they are derived when used as a possible treatment for neurodegenerative disorders. Exosomes are a subgroup of extracellular vesicles which regulate intercellular communication and, unlike stem cells, easily cross into the brain and can be administered in non-syngeneic species without immune rejection. Studies on brain ageing in humans has major limitation in the lack of accessibility of the central nervous system. EEG has allowed the non-invasive assessment of functional changes in the aging brain. In fact, this technique can provide a direct assessment of neural activity and information flow with a higher temporal resolution that is particularly important for investigating the dynamics of brain changes underlying cogniti…

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Lucia Gatta, PhD  ·  +390652253440  ·  lucia.gatta@sanraffaele.it

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