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Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
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Physical Exercise Counteracts Aging-Associated White Matter Demyelination Causing Cognitive Decline.

Tanya H Butt1, Makoto Tobiume2, Diane B Re1,3,4

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Physical exercise may counteract age-related myelin loss in Alzheimer's disease (AD) by promoting brain myelination. Further research is needed to explore exercise as a novel therapeutic approach for cognitive decline in AD.

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Gerontology

Background:

  • Oligodendrocytes form myelin sheaths around axons in the central nervous system, crucial for neuronal function and support.
  • Demyelination, or myelin loss, is an early pathology in Alzheimer's disease (AD), preceding cognitive decline.
  • Current treatments for AD do not address demyelination or promote remyelination.

Purpose of the Study:

  • To review the potential of physical exercise in counteracting age-associated white matter demyelination in Alzheimer's disease.
  • To highlight the need for further research into exercise as a therapeutic strategy for AD.

Main Methods:

  • This review summarizes existing literature on exercise, myelination, and Alzheimer's disease.
  • Mechanistic studies on how physical activity influences pro-myelination cues are discussed.

Main Results:

  • Exercise may promote brain myelination by enhancing neurotrophic factors and electrical activity.
  • Physical activity shows promise in delaying dementia progression in older adults.

Conclusions:

  • Physical exercise presents a potential non-pharmacological approach to mitigate demyelination and cognitive decline in AD.
  • Further basic and clinical research is essential to establish exercise interventions for healthy brain aging and AD management.