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- W4367672074 abstract "ABSTRACT P. falciparum parasites manipulate host metabolic processes during malaria to ensure their survival and progression, causing the host and parasite metabolic pathways to become intertwined. We analyzed metabolites to evaluate their potential as biomarkers for cerebral malaria (CM). Our analysis of CM (with coma) and CM-like (without coma) patients identified 835 metabolites, including lipids, amino acids, xenobiotics, peptides, nucleotides, carbohydrates, cofactors, and vitamins. Principal component analysis revealed clear segregation between CM-like and CM patients. Metabolite-by-metabolite analysis identified 103 differentially abundant metabolites, 26 of which were significantly lower in CM-like patients (primarily lipids), while 71% of those higher in CM patients were amino acids and xenobiotics. The results revealed significant differences in circulating levels of long chain free fatty acids and catecholamine metabolism and identified steroid biosynthesis as the most enriched lipid metabolism pathway, with eight endogenous steroids showing significantly higher levels in CM patients compared to CM-like patients (FC > 2, B-H FDR-adjusted P < 0.05). These steroids include pregnenolone sulfate, pregnenediol sulfate, pregnenetriol sulfate, androsterone monosulfate, 16α-OH-DHEA-S, DHEA-S, cortisol, and cortisone. High levels of pregnenolone and its downstream metabolic derivatives were significantly associated with coma in CM patients. Our findings suggest that monitoring circulating neurosteroid levels in patients could aid in the early identification of those at risk of coma, and may important implications for the clinical management of CM patients." @default.
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- W4367672074 date "2023-05-02" @default.
- W4367672074 modified "2023-09-26" @default.
- W4367672074 title "Upregulation of steroidogenesis is associated with coma in human cerebral malaria" @default.
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- W4367672074 doi "https://doi.org/10.1101/2023.05.01.538900" @default.
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