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Increased plasma levels of 8-Iso-PGF2α in an elderly Greek population with cognitive impairment


Oxidative damage has been suggested to play a role in dementia [1, 2]. The purpose of the study was to investigate possible implications of lipid peroxidation in cognitive impairment by determining the levels of plasma 8-iso-PGF2α in elderly individuals with dementia.

Materials and methods

37 subjects over 60 years of age with dementia and 33 matched controls were randomly selected from a population in the community after screening with the MMSE and application of the diagnostic criteria of the DSM-IV. Plasma concentrations of 8-iso-PGF2α were measured in both groups.


Demented individuals had significantly higher mean (±SD) 8-iso-PGF2α levels compared to healthy controls (237.44 ± 187.44 pg/ml vs 97.64 ± 42.72 pg/ml, respectively, p< 0.05).


This study indicates an association between increased levels of plasma 8-iso-PGF2α and cognitive impairment in the elderly and indicates the necessity for further investigation of oxidative stress and lipid peroxidation in dementia, rendering isoprostanes as plausible biochemical markers of the disease in peripheral blood.


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  2. Montine T, Quinn J, Montine K, Kaye J, Breitner J: Quantitative in vivo biomarkers of oxidative damage and their application to the diagnosis and management of Alzheimer\'s disease. J Alzheimer's Dis. 2005, 8: 359-367.

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Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution 2.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Dimopoulos, N., Psarra, V., Mitsonis, C. et al. Increased plasma levels of 8-Iso-PGF2α in an elderly Greek population with cognitive impairment. Ann Gen Psychiatry 7 (Suppl 1), S97 (2008).

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