Journal
ANALYTICAL BIOCHEMISTRY
Volume 449, Issue -, Pages 129-131Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2013.12.030
Keywords
Isoprostanes; Lipid peroxidation; Gas chromatography-mass spectrometry
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F-2-isoprostanes (F-2-IsoP's) are reliable measures of in vivo lipid oxidation, but care is required to prevent artifactual elevation. We examined the effects of blood collection and storage on plasma F-2-IsoP's. Blood was collected into EDTA/butylated hydroxytoluene/reduced glutathione (EDTA/BHT/GSH) or EDTA, at 4 degrees C or room temperature. Plasma was stored at -20 or -80 degrees C for 1 or 6 months before F-2-IsoP's were assayed by GC-MS. The temperature of blood collection did not affect F-2-IsoP's. However, storage at -20 degrees C or collection into EDTA resulted in significant increases in F-2-IsoP's. Blood collection into EDTA/BHT/GSH and storage at -80 degrees C minimizes artifactual elevation of plasma F-2-IsoP's. (C) 2014 Elsevier Inc. All rights reserved.
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