Carotenoids as protection against sarcopenia in older adults

Arch Biochem Biophys. 2007 Feb 15;458(2):141-5. doi: 10.1016/j.abb.2006.11.025. Epub 2006 Dec 6.

Abstract

Sarcopenia, or loss of muscle mass and strength, plays a major role in the disablement process in older adults and increases the risk of impaired physical performance, falls, physical disability, frailty, and death. Oxidative stress is a major mechanism implicated in the pathogenesis of sarcopenia; aging muscle shows increased oxidative damage to DNA, protein, and lipids. Carotenoids quench free radicals, reduce damage from reactive oxygen species, and appear to modulate redox-sensitive transcription factors such as NF-kappaB that are involved in the upregulation of IL-6 and other proinflammatory cytokines. Recent epidemiological studies in community-dwelling older adults show that low serum/plasma carotenoids are independently associated with low skeletal muscle strength and the development of walking disability. These observations are consistent with a growing number of studies showing that a diet with high intake of fruits and vegetables is associated with a reduced risk of inflammation, hypertension, diabetes, cardiovascular disease, and mortality.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, N.I.H., Intramural
  • Review

MeSH terms

  • Adult
  • Aged
  • Carotenoids / administration & dosage
  • Carotenoids / blood
  • Carotenoids / metabolism*
  • Cytokines / metabolism
  • Diet
  • Fruit
  • Humans
  • Inflammation / metabolism
  • Mobility Limitation
  • Muscle Strength
  • Muscle, Skeletal / physiology
  • Muscle, Skeletal / physiopathology
  • Muscular Atrophy / epidemiology
  • Muscular Atrophy / metabolism
  • Muscular Atrophy / prevention & control*
  • Muscular Diseases / epidemiology
  • Muscular Diseases / metabolism
  • Muscular Diseases / prevention & control*
  • Oxidative Stress
  • Vegetables

Substances

  • Cytokines
  • Carotenoids