The Beneficial Role of Exercise on Treating Alzheimer's Disease by Inhibiting β-Amyloid Peptide

Mol Neurobiol. 2021 Nov;58(11):5890-5906. doi: 10.1007/s12035-021-02514-7. Epub 2021 Aug 20.

Abstract

Alzheimer's disease (AD) is associated with a very large burden on global healthcare systems. Thus, it is imperative to find effective treatments of the disease. One feature of AD is the accumulation of neurotoxic β-amyloid peptide (Aβ). Aβ induces multiple pathological processes that are deleterious to nerve cells. Despite the development of medications that target the reduction of Aβ to treat AD, none has proven to be effective to date. Non-pharmacological interventions, such as physical exercise, are also being studied. The benefits of exercise on AD are widely recognized. Experimental and clinical studies have been performed to verify the role that exercise plays in reducing Aβ deposition to alleviate AD. This paper reviewed the various mechanisms involved in the exercise-induced reduction of Aβ, including the regulation of amyloid precursor protein cleaved proteases, the glymphatic system, brain-blood transport proteins, degrading enzymes and autophagy, which is beneficial to promote exercise therapy as a means of prevention and treatment of AD and indicates that exercise may provide new therapeutic targets for the treatment of AD.

Keywords: Alzheimer’s disease; Amyloid precursor protein; Exercise; β-Amyloid peptide.

Publication types

  • Review

MeSH terms

  • Alzheimer Disease / metabolism
  • Alzheimer Disease / therapy
  • Amyloid beta-Peptides / metabolism*
  • Amyloid beta-Protein Precursor / metabolism*
  • Animals
  • Autophagy
  • Blood-Brain Barrier
  • Brain-Derived Neurotrophic Factor / physiology
  • Carrier Proteins / metabolism
  • Disease Models, Animal
  • Exercise* / physiology
  • Fibronectins / physiology
  • Glymphatic System
  • Humans
  • Membrane Microdomains / physiology
  • Mice
  • Nerve Tissue Proteins / physiology
  • Neurodegenerative Diseases / physiopathology
  • Neurodegenerative Diseases / prevention & control
  • Neuroinflammatory Diseases / physiopathology
  • Peptide Hydrolases / metabolism
  • Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha / physiology
  • Physical Conditioning, Animal
  • Proteolysis
  • Signal Transduction / physiology
  • Sirtuin 1 / physiology
  • Unfolded Protein Response / physiology

Substances

  • Amyloid beta-Peptides
  • Amyloid beta-Protein Precursor
  • Brain-Derived Neurotrophic Factor
  • Carrier Proteins
  • FNDC5 protein, human
  • Fibronectins
  • Nerve Tissue Proteins
  • Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha
  • Peptide Hydrolases
  • Sirtuin 1