Cognitive Changes with Omega-3 Polyunsaturated Fatty Acids in Non-Demented Older Adults with Low Omega-3 Index.
J Nutr Health Aging
; 21(9): 988-993, 2017.
Article
em En
| MEDLINE
| ID: mdl-29083439
ABSTRACT
OBJECTIVES:
To investigate the changes in specific domains of cognitive function in older adults reporting subjective memory complaints with a low omega-3 index receiving omega 3 polyunsaturated fatty acid (n-3 PUFA) supplementation or placebo.DESIGN:
This is a secondary exploratory analysis of the Multidomain Alzheimer Preventive Trial (MAPT) using subjects randomized to the n-3 PUFA supplementation or placebo group.SETTING:
French community dwellers aged 70 or over reporting subjective memory complaints, but free from clinical dementia.PARTICIPANTS:
A subgroup of MAPT subjects in the lowest quartile of omega-3 index distribution with baseline values ≤ 4.83 % (n = 183). INTERVENTION The n-3 PUFA supplementation group consumed a daily dose of DHA (800 mg) and EPA (a maximum amount of 225 mg) for 3 years. The placebo group received identical capsules comprising liquid paraffin oil. MEASUREMENTS Linear mixed-model repeated-measures analyses were used including baseline, 6, 12, 24 and 36-month follow-up data to assess between-group differences in the change in eight cognitive tests over 36 months.RESULTS:
There was less decline on the Controlled Oral Word Association Test (COWAT) in the n-3 PUFA supplementation group compared to placebo (p = 0.009; between group mean difference over 36 months, 2.3; 95% CI, 0.6,4.0). No significant differences for any of the other cognitive tests were found, including other tests of executive functioning, although, numerically all results were in favour of the n-3 PUFA supplementation.CONCLUSIONS:
We found some evidence that n-3 PUFAs might be beneficial for the maintenance of executive functioning in older adults at risk of dementia with low omega-3 index, but this exploratory finding requires further confirmation. A larger specifically designed randomised controlled trial could be merited.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácidos Graxos Ômega-3
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Cognição
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Função Executiva
Tipo de estudo:
Clinical_trials
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Prognostic_studies
Limite:
Aged
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Female
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Humans
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Male
Idioma:
En
Revista:
J Nutr Health Aging
Ano de publicação:
2017
Tipo de documento:
Article