Journal
FREE RADICAL RESEARCH
Volume 49, Issue 5, Pages 583-598Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/10715762.2015.1007969
Keywords
isoprostanes; dihomo-isoprostanes; neuroprostanes; phytoprostanes; antioxidants; mass spectrometry
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Isoprostanoids are a group of non-enzymatic oxidized lipids from polyunsaturated fatty acids. They are commonly used as biomarkers for oxidative damage, to assess in vivo lipid peroxidation in diseases related to the vascular system and neurodegeneration. Currently, there is a mismatch with the outcome in the use of these biomarkers in intervention studies, particularly when testing the effect of antioxidants such as vitamins C and E, or zinc, or a cocktail of these, with other food components. Much of this is because the biomarkers, the method of measurement, and the duration of supplementation are unsuitable. In this review, we will highlight the formation of isoprostanoids from their respective fatty acids, and their application as biomarkers for oxidative damage in vivo, considering human dietary intervention studies evaluating plasma and urine, using mass spectrometry techniques.
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