title: Correlation of F4-neuroprostanes levels in cerebrospinal fluid with outcome of aneurysmal subarachnoid hemorrhage in humans.
abstract: Aneurysmal subarachnoid hemorrhage (aSAH) is one type of hemorrhagic stroke in humans. F(2)-isoprostanes (F(2)-IsoPs) and F(4)-neuroprostanes (F(4)-NPs), derived from arachidonic acid and docosahexaenoic acid (DHA), respectively, are specific markers of lipid peroxidation. We previously demonstrated that F(2)-IsoPs levels in cerebrospinal fluid (CSF) of aSAH patients positively correlated with poor clinical conditions. In this work, we refined F(4)-NPs analysis and investigated the role of potential oxidative damage to neurons in aSAH patients by detecting F(4)-NPs in CSF. [(2)H(4)]-15-F(2t)-IsoP, rather than [(18)O(2)]-17-F(4c)-NP or [(2)H(4)]-PGF(2 alpha), was used as the internal standard for F(4)-NPs analysis. One problem of the use of [(18)O(2)]-17-F(4c)-NP was the potential interference resulting from F(2)-dihomo-IsoPs in CSF. CSF specimens of 15 aSAH patients for up to 10 days and those of 12 non-aSAH controls were analyzed. First day, mean, and peak levels of F(4)-NPs were all significantly higher in aSAH patients than in controls and correlated with the Fisher Scale and 3-month Glasgow Outcome Scale, but only mean levels of F(4)-NPs correlated with Hunt and Hess Grade. The results first demonstrate oxidative damage to DHA in brain tissue following aSAH and suggest that F(4)-NPs in CSF could be a better predictor for outcome of aSAH than F(2)-IsoPs at early time points.
authors: Graduate Institute of Medical Biotechnology/Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.
authors: Yu-Ping
authors: YP
authors: Hsieh
authors: Chih-Lung
authors: CL
authors: Lin
authors: An-Li
authors: AL
authors: Shiue
authors: Huiyong
authors: H
authors: Yin
authors: Jason D
authors: JD
authors: Morrow
authors: Jee-Ching
authors: JC
authors: Hsu
authors: Tsung-Che
authors: TC
authors: Hsieh
authors: Hsing-Ju
authors: HJ
authors: Wei
authors: Hsiu-Chuan
authors: HC
authors: Yen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015415:Biomarkers / Q000134:cerebrospinal fluid*; D018450:Disease Progression; D004281:Docosahexaenoic Acids / Q000134:cerebrospinal fluid*; D042241:Early Diagnosis; D028441:F2-Isoprostanes / Q000134:cerebrospinal fluid*; D005260:Female; D006801:Humans; D015227:Lipid Peroxidation; D008297:Male; D008875:Middle Aged; D018384:Oxidative Stress; D011379:Prognosis; D012720:Severity of Illness Index; D013345:Subarachnoid Hemorrhage / Q000134:cerebrospinal fluid* / Q000175:diagnosis / Q000503:physiopathology
chemical_list: D015415:Biomarkers; D028441:F2-Isoprostanes; D004281:Docosahexaenoic Acids