Obesity, lutein metabolism, and age-related macular degeneration: a web of connections

Nutr Rev. 2005 Jan;63(1):9-15. doi: 10.1111/j.1753-4887.2005.tb00105.x.

Abstract

Age-related macular degeneration (AMD) is a major cause of visual impairment in the United States. Currently there is no effective cure for this disease. Risk factors include decreased lutein and zeaxanthin status and obesity. Obesity is also an increasing public health concern. The alarming increase in the prevalence of obesity further exacerbates the public health concern of AMD. The mechanism by which obesity increases the risk of AMD may be related to the physiologic changes that occur with this condition. These include increased oxidative stress, changes in the lipoprotein profile, and increased inflammation. These changes would also result in an increased destruction and a decreased circulatory delivery of lutein and zeaxanthin to the macula of the eye. Therefore, the mechanism by which obesity is related to AMD risk may be through indirect effects on changes in lutein and zeaxanthin status and metabolism.

Publication types

  • Review

MeSH terms

  • Age Factors
  • Humans
  • Lutein / metabolism*
  • Macular Degeneration / epidemiology
  • Macular Degeneration / metabolism*
  • Macular Degeneration / physiopathology
  • Obesity / epidemiology
  • Obesity / metabolism*
  • Obesity / physiopathology
  • Odds Ratio
  • Oxidative Stress
  • Risk Assessment
  • Risk Factors
  • United States / epidemiology
  • Xanthophylls / metabolism
  • Zeaxanthins

Substances

  • Xanthophylls
  • Zeaxanthins
  • Lutein