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Am J Clin Nutr. 2008 Mar;87(3):712-22.

Diet and risk factors for age-related maculopathy.

Author information

1
Macular Pigment Research Group, Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland. dreamonnoconnell@iolfree.ie

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 alpha-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 ARM are 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.

PMID:
18326611
DOI:
10.1093/ajcn/87.3.712
[Indexed for MEDLINE]

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