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Dietary Supplementation of Polyunsaturated Fatty Acids in Caenorhabditis elegans
Published on: November 29, 2013
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Associations between Plasmatic Polyunsaturated Fatty Acids Concentrations and Cognitive Status and Decline in
M Haution-Bitker1, T Gilbert, A Vignoles
1Dr Marine Haution-Bitker, MD, Service de Court Séjour Gériatrique, Centre Hospitalier Lyon Sud, 165 chemin du Grand Revoyet, 69310 Pierre-Bénite, France, Tel: + 33 4 78 86 56 87, Fax: +33 4 78 86 57 27, Mail: marine.haution@chu-lyon.fr.
The Journal of Nutrition, Health & Aging
|May 29, 2018
Summary
Higher omega-3 polyunsaturated fatty acids (PUFA) plasma levels are linked to better cognitive status in older adults. Lower erythrocyte PUFA may predict cognitive decline.
Area of Science:
- Neuroscience
- Nutritional Science
- Gerontology
Background:
- Cognitive decline is a growing concern in aging populations.
- Polyunsaturated fatty acids (PUFA), particularly omega-3, play crucial roles in brain health.
- Understanding the relationship between PUFA levels and cognitive function is vital for preventative strategies.
Purpose of the Study:
- To investigate the association between plasma and erythrocyte polyunsaturated fatty acid (PUFA) concentrations and cognitive status.
- To determine if PUFA levels are associated with cognitive decline in older adults.
Main Methods:
- A longitudinal observational cohort study involving 140 patients aged 60 and older.
- Measurement of plasma and erythrocyte concentrations of omega-3 PUFA (EPA, DHA) and omega-6 PUFA (AA) at baseline.
- Cognitive status assessed using the Mini-Mental State Examination (MMSE) at baseline and every six months over a median follow-up of 11.5 months.
Main Results:
- Participants with major neurocognitive disorders had lower baseline plasma concentrations of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) compared to those with minor neurocognitive disorders (p<0.05).
- Lower erythrocyte concentrations of arachidonic acid (AA) and DHA were significantly associated with cognitive decline (≥2 points loss of MMSE per year).
- No significant difference in plasma PUFA concentrations was observed in relation to cognitive decline.
Conclusions:
- Plasma concentrations of omega-3 PUFA (EPA and DHA) may be associated with cognitive status in older individuals.
- Lower erythrocyte PUFA concentrations (AA and DHA) show potential as surrogate markers for predicting cognitive decline.
- Further research is warranted to explore the predictive value of erythrocyte PUFA in cognitive decline.
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