The plasma membrane redox system in aging

Dong Hoon Hyun, Joe O. Hernandez, Mark P. Mattson, Rafael de Cabo

Research output: Contribution to journalArticle

Abstract

Oxidative stress over time leads to the accumulation of damaged macromolecules and to profound physiological changes that are associated with several age-related diseases. The plasma membrane redox system (PMRS) appears to attenuate oxidative stress acting as a compensatory mechanism during the aging process. The PMRS appears to play a protective role during mitochondrial dysfunction to provide cells with a survival mechanism by lowering oxidative stress. The PMRS accomplishes this by producing more NAD+ for glycolytic ATP production via transfer of electrons from intracellular reducing equivalents to extracelluar acceptors. Ubiquinone and α-tocopherol are key antioxidant molecules in the plasma membrane that are affected by aging and can be up-regulated by dietary interventions such as calorie restriction (CR). Up-regulation of PMRS activity leads to cell survival and membrane homeostasis under stress conditions and during calorie restriction. Further studies of the PMRS may provide not only additional information on the mechanisms involved in aging and CR, but may provide therapeutic targets for the prevention and treatment of age-related diseases.

Original languageEnglish (US)
Pages (from-to)209-220
Number of pages12
JournalAgeing Research Reviews
Volume5
Issue number2
DOIs
StatePublished - May 2006
Externally publishedYes

Fingerprint

Cell membranes
Oxidation-Reduction
Aging of materials
Cell Membrane
Oxidative stress
Oxidative Stress
Ubiquinone
Tocopherols
Macromolecules
NAD
Antioxidants
Adenosine Triphosphate
Cells
Cell Survival
Homeostasis
Up-Regulation
Membranes
Molecules
Electrons

Keywords

  • Aging
  • Calorie restriction
  • Mitochondrial dysfunction
  • Oxidative stress
  • Plasma membrane redox system

ASJC Scopus subject areas

  • Aging
  • Biochemistry

Cite this

Hyun, D. H., Hernandez, J. O., Mattson, M. P., & de Cabo, R. (2006). The plasma membrane redox system in aging. Ageing Research Reviews, 5(2), 209-220. https://doi.org/10.1016/j.arr.2006.03.005

The plasma membrane redox system in aging. / Hyun, Dong Hoon; Hernandez, Joe O.; Mattson, Mark P.; de Cabo, Rafael.

In: Ageing Research Reviews, Vol. 5, No. 2, 05.2006, p. 209-220.

Research output: Contribution to journalArticle

Hyun, DH, Hernandez, JO, Mattson, MP & de Cabo, R 2006, 'The plasma membrane redox system in aging', Ageing Research Reviews, vol. 5, no. 2, pp. 209-220. https://doi.org/10.1016/j.arr.2006.03.005
Hyun DH, Hernandez JO, Mattson MP, de Cabo R. The plasma membrane redox system in aging. Ageing Research Reviews. 2006 May;5(2):209-220. https://doi.org/10.1016/j.arr.2006.03.005
Hyun, Dong Hoon ; Hernandez, Joe O. ; Mattson, Mark P. ; de Cabo, Rafael. / The plasma membrane redox system in aging. In: Ageing Research Reviews. 2006 ; Vol. 5, No. 2. pp. 209-220.
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