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Neuroglia in Ageing.

Alexei Verkhratsky1,2,3, Robert Zorec4,5, Jose Julio Rodriguez-Arellano6

  • 1Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, UK. Alexej.Verkhratsky@manchester.ac.uk.

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Summary
This summary is machine-generated.

Aging impairs nervous system function, leading to cognitive decline. Changes in neuroglial cells, crucial for brain health, contribute significantly to this age-related functional loss.

Keywords:
AgeingAstrocyteMicrogliaNG2 cellsOligodendrocytes

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Area of Science:

  • Neuroscience
  • Gerontology
  • Cell Biology

Background:

  • Aging progressively diminishes the functional capacity of organs, including the nervous system, manifesting as reduced cognitive abilities, learning, and memory.
  • The precise mechanisms underlying nervous system aging are not fully understood, but morpho-functional alterations in neuroglial cells are recognized contributors.
  • Age-dependent changes in neuroglia involve a progressive decline in their functions, impacting their ability to support, protect, and regenerate neural tissue.

Purpose of the Study:

  • To elucidate the role of neuroglial cell aging in the decline of nervous system function.
  • To highlight the contribution of neuroglial functional loss to age-related cognitive impairments.
  • To underscore the impact of neuroglial paralysis on neurodegenerative processes.

Main Methods:

  • Review of existing literature on neuroglial cell biology and aging.
  • Analysis of morpho-functional changes in various neuroglial cell types during the aging process.
  • Examination of the consequences of impaired glial function on neural tissue homeostasis and regeneration.

Main Results:

  • Neuroglial cells exhibit age-dependent functional decline, characterized by reduced homeostatic support, protection, and regeneration capabilities.
  • This loss of neuroglial function, termed neuroglial paralysis, exacerbates age-related cognitive deficits.
  • Neuroglial aging is a variable process influenced by environmental factors and the presence of comorbidities.

Conclusions:

  • Morpho-functional changes and progressive functional loss in neuroglial cells are key drivers of nervous system aging.
  • Impaired neuroglial function contributes to cognitive decline and facilitates neurodegeneration.
  • Understanding neuroglial aging is crucial for developing interventions against age-related neurological disorders.