Antioxidant intake and bone status in a cross-sectional study of Brazilian women with osteoporosis.
Nutr Health
; 22(2): 133-42, 2013 Apr.
Article
em En
| MEDLINE
| ID: mdl-25593111
ABSTRACT
This study aimed to investigate the association between antioxidant intake and bone mineral density (BMD) in postmenopausal women with osteoporosis. We conducted a cross-sectional study with 150 women, mean age 68.7 (SD 9.1) years. BMD and body composition were obtained using dual-energy X-ray absorptiometry (DXA). We assessed anthropometric measures and dietary intake and applied an adapted Dietary Antioxidant Quality Score (a-DAQS) to evaluate the antioxidant consumption. 65.3% of women had higher scores on the a-DAQS. We found no relationship between the a-DAQS and BMD; however, we observed an inverse correlation between vitamin A and lumbar spine (LS) BMD in g/cm(2) (r = - 0.201; p = 0.013). An analysis of variance (ANOVA) test also showed that vitamin A was negatively associated with the LS BMD (F = 6.143; p = 0.013, but without significance when a multivariate analysis was applied. The a-DAQS did not have an association with BMD; however, Vitamin A showed a negative correlation with BMD, but such an association disappeared when the other antioxidants were taken together. Our findings encourage an antioxidant-based dietary approach to osteoporosis prevention and treatment, since the negative effect of vitamin A was neutralized by the intake of such nutrients.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Osteoporose
/
Antioxidantes
Tipo de estudo:
Observational_studies
/
Prevalence_studies
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Risk_factors_studies
Limite:
Aged
/
Aged80
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Female
/
Humans
/
Middle aged
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Nutr Health
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Brasil