Elevated malondialdehyde levels in sepsis - something to 'stress' about?

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Oxidative stress has been postulated as a mechanism of organ dysfunction - and thus a potential therapeutic target - in sepsis. Lorente and colleagues report increased serum levels of malondialdehyde, a biomarker of oxidative stress-induced lipid peroxidation, in adults with severe sepsis, particularly in non-survivors. While survivors exhibited a decrease in serum malondialdehyde over time, the elevation was sustained in non-survivors. These findings suggest that there is increased oxidative stress in sepsis and that membrane lipids in particular are targeted by free radical species. Further study is required to validate the utility of malondialdehyde as a prognostic biomarker in sepsis and to determine a role for antioxidant therapy.




Weiss, S. L., & Deutschman, C. S. (2014, March 19). Elevated malondialdehyde levels in sepsis - something to “stress” about? Critical Care. BioMed Central Ltd. https://doi.org/10.1186/cc13786

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