Abstract
Pre-eclampsia (PE) is considered a leading cause of mortality and morbidity in pregnant women worldwide. Eicosanoids derived from polyunsaturated fatty acids (PUFAs) might play an important role in the occurrence and development of PE. Omega-3 PUFAs are nutrients that are popular supplements for pregnant women and can reduce blood pressure. However, the levels of eicosanoids derived from omega-3 PUFAs in women with PE is not clear. The purpose of this study was to investigate the eicosanoid metabolic signature of PE. We performed a case-control study using data for pregnant women (n=10) with PE and normotensive pregnant women (n=10). We investigated the difference in eicosanoid profile between the groups by LC-MS/MS-based metabolomics. The plasma levels of arachidonic acid metabolites and some of the lipoxygenase metabolites of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) showed an increasing trend, and those of the cytochrome P450 metabolites of EPA and DHA were decreased in women with PE. Levels of leukotriene B4, 14,15-dihydroxy-eicosatetraenoate, 16-hydroxydocosahexaenoic acid and 8,9-epoxy eicosatetraenoic acid were significantly correlated with PE occurrence. These eicosanoids might take part in the progression of PE in pregnant women.
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