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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611

Resumen

FERNANDES, Dalila Pinto de Souza et al. Effect of eicosapentaenoic acid and docosahexaenoic acid supplementations to control cognitive decline in dementia and Alzheimer's disease: a systematic review. Nutr. Hosp. [online]. 2015, vol.32, n.2, pp.528-533. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.32.2.9111.

Introduction: there is a lack of consensus on the benefits of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) supplementations on cognition in dementia and/or Alzheimer's disease (AD) elderly. Objective: this study presents a systematic review of the results of randomized clinical trials about this topic. The adopted search criteria were randomized clinical trials involving elderly over 65 years of age with no limit to the year of publication of the study. Results: we identified 139 articles, and from the eligible ones a reverse search was conducted. The quality of the trials was assessed using the Jadad scale. Of the four selected studies, three were related to mild to moderate AD elderly, of both genders. Mini Mental State Examination, Alzheimer's Disease Assessment Scale Cognitive, and Clinical Dementia Rate were the main tests used to assess cognitive performance. Conclusion: EPA and/or DHA supplementations did not affect scores obtained on the cognitive tests. However, supplementation with EPA and/or DHA improved verbal fluency and attention in patients who had only very mild dementia or AD or presented APOEε4 negative genotype. In case of advanced AD elderly patients, EPA and/or DHA supplementations did not reduce cognitive decline rates.

Palabras clave : N-3 fatty acids; Dietary supplements; Cognition; Alzheimer disease; Dementia.

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