Diet and risk factors for age-related maculopathy

Eamonn D. O'Connell, John M. Nolan, Jim Stack, David Greenberg, Janet Kyle, Leigh Anne Maddock, Stephen Beatty

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Background: Evidence continues to accumulate that oxidative stress is etiologically important in the pathogenesis of age-related maculopathy (ARM) and that appropriate antioxidants of dietary origin may protect against this condition. Objective: Risk factors for ARM may be classed as established or putative. We report a study designed to investigate whether such risk factors are associated with a dietary lack of antioxidants relevant to retinal health. Design: Dietary, anthropometric, and sociodemographic details relating to 828 healthy Irish subjects aged 20-60 y were recorded in a cross-sectional fashion and analyzed for associations between risk factors for ARM and dietary intake of relevant nutrients. Results: Of the established risk factors for ARM, increasing age was associated with a relative lack of dietary zeaxanthin (P < 0.05) and tobacco use with a relative lack of dietary vitamin C (P < 0.05). Of the putative risk factors for ARM, alcohol consumption was associated with a relative lack of dietary α-linoleic acid (P < 0.05), and female sex was associated with a relative lack of dietary zinc (P < 0.05). Conclusions: We showed that several variables related to risk for ARMare associated with a relative dietary lack of key nutrients. Our finding that age, the most important and universal risk factor for ARM, is associated with a relative lack of dietary zeaxanthin, is an important finding that warrants further investigation.

Original languageEnglish
Pages (from-to)712-722
Number of pages11
JournalAmerican Journal of Clinical Nutrition
Volume87
Issue number3
DOIs
Publication statusPublished - 01 Mar 2008

Keywords

  • Age-related macular degeneration
  • Age-related maculopathy
  • Antioxidants
  • Lutein
  • n-3 fatty acids
  • Zeaxanthin

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