The relationship between antioxidant nutrient intake and cataracts in older people.
Int J Vitam Nutr Res
; 76(6): 359-66, 2006 Nov.
Article
em En
| MEDLINE
| ID: mdl-17607955
ABSTRACT
This study investigated the relationship between the intake of antioxidant nutrients and the suffering of cataracts in 177 institutionalized elderly people (61 men and 116 women) aged > or = 65 years. Dietary intake was monitored for 7 consecutive days using a "precise individual weighing" method. Subjects, who during their earlier years were exposed by their work to sunlight, had a greater risk of suffering cataracts (OR = 3.2; CI 1.1-9.3, P < 0.05) than those who worked indoors. A relationship was found between increased vitamin C intake and a reduced prevalence of cataracts (i.e., when comparing those above P95 for vitamin C intake with those below P5; (OR = 0.08; CI 0.01-0.75, P 0.05). Among subjects with cataracts, 12.1% had vitamin C intakes of < 61 mg/day (P10) and only 2.2% had intakes of > 183 mg/day (P95) (p < 0.01). Subjects who consumed > 3290 microg/day (P95) of lutein were less likely to have cataracts (OR = 0.086; CI 0.007-1.084; p < 0.05) than those whose consumption was < 256 microg/day (P5). In men, high intakes of zeaxanthin seemed to provide a protective effect against the problem (OR = 0.96; CI 0.91-0.99; p < 0.05). The results suggest an association exists between exposure to sunlight and the development of cataracts, and that vitamin C, lutein, and zeaxanthin offer some protection against this disorder.
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Base de dados:
MEDLINE
Assunto principal:
Catarata
/
Dieta
/
Antioxidantes
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
Limite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
País como assunto:
Europa
Idioma:
En
Ano de publicação:
2006
Tipo de documento:
Article