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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Increased lipid peroxidation after lipid infusion as measured by breath pentane output.

We studied the effect of intravenous lipid infusion on lipid peroxidation as measured by breath pentane. Pentane, plasma alpha-tocopherol (alpha-tox) and plasma gamma-tocopherol (gamma-toc), selenium, and Se-dependent glutathione peroxidase (Se-GSHPx) were measured in 10 normal control subjects and in 10 home parenteral nutrition (HPN) patients before and after infusion of 100 mL Nutralipid 10% over 30 min. Before infusion, breath pentane was significantly higher and alpha-toc was significantly lower in the HPN group than in the control subjects. These two measurements were significantly negatively correlated (r = -0.54, p less than 0.05). Pentane, alpha-toc, and Se-GSHPx were significantly increased in both groups after lipid was infused but were still significantly higher in HPN patients than in control subjects. Thus, infusion of a small amount of lipid rich in linoleic acid induced a significant increase in breath pentane, reflective of increased lipid peroxidation.[1]


  1. Increased lipid peroxidation after lipid infusion as measured by breath pentane output. Van Gossum, A., Shariff, R., Lemoyne, M., Kurian, R., Jeejeebhoy, K. Am. J. Clin. Nutr. (1988) [Pubmed]
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