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Omega 3, cognitive performance and Alzheimer's Disease

3/28/2017

 
Photo drsuciu_cognitive_performance_alzheimer_omega_3
Omega 3 fatty acids may slow the rate of decline in cognitive performance in mild forms of cognitive impairment and Alzheimer's disease.
VISIT OUR PAGE: ALZHEIMER'S DISEASE
BACKGROUND:
ω3 fatty acids (ω3 FAs) may slow the rate of decline in cognitive performance in mild forms of cognitive impairment and Alzheimer's disease (AD). However, the relationship between changes of plasma ω3 FA levels and cognitive performance, as well as effects of gender, are poorly known.
OBJECTIVE:
To study the effect of 6-month administration of DHA-rich ω3 FA supplementation on plasma FA profiles in patients with mild to moderate AD in relation to cognitive performance and gender. This investigation is part of the OmegAD Study.
METHODS:
174 AD patients (74 ± 9 years) were randomized to a daily intake of 2.3 g ω3 FA or placebo for 6 months; subsequently all received the ω3 FA preparation for the next 6 months. Baseline as well as changes in plasma levels of the main ω3 FAs in 165 patients, while receiving ω3 FA supplementation for 6 months, were analyzed for association to cognitive performance (assessed by ADAS-cog and MMSE scores) as well as to gender.
RESULTS:
Preservation of cognitive functioning, assessed by ADAS-cog or its sub-items (but not MMSE) scores, was significantly associated to increasing plasma ω3 FA levels over time.
Thus, the higher ω3 FA plasma levels rose, the lower was the rate of cognitive deterioration.
This effect was not related to gender; since although females displayed higher ω3 FA plasma levels than did males after 6 months of supplementation, this difference disappeared when adjusted for body weight.
CONCLUSIONS:
Since our study suggests dose-response relationships between plasma levels of ω3 FA and preservation of cognition, future ω3 FA trials in patients with mild AD should consider exploring graded (and body weight adjusted) doses of ω3 FA.


REFERENCE:

J Alzheimers Dis. 2015;48(3):805-12. doi: 10.3233/JAD-150102.
Plasma Fatty Acid Profiles in Relation to Cognition and Gender in Alzheimer's Disease Patients During Oral Omega-3 Fatty Acid Supplementation: The OmegAD Study.
​Eriksdotter M1,2, Vedin I3, Falahati F1, Freund-Levi Y1, Hjorth E4, Faxen-Irving G1, Wahlund LO1,2, Schultzberg M4, Basun H5,6, Cederholm T7,6, Palmblad J3.

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      • Vieillissement
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    • Free Radicals
    • Nutritive Value of Fruits and Vegetables
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    • 18 criteria to choose a high quality vitamin
    • How to choose a high quality fish oil?
    • Choose a good calcium supplement
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