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

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Avogaro, A. et al.

Contribution of 3-hydroxyisobutyrate to the measurement of 3-hydroxybutyrate in human plasma: comparison of enzymatic and gas-liquid chromatography-mass spectrometry assays in normal and in diabetic subjects.

In this study we employed a capillary gas-liquid chromatographic-mass spectrometric (GLC-MS) method to measure the plasma concentrations of 3-hydroxybutyrate (3-OHB) and 3-hydroxyisobutyrate (3-OHIB) in overnight fasted diabetic subjects and in normal subjects. Plasma contents of 3-hydroxybutyrate measured in this fashion were identical to those obtained by enzymatic assay using a commercial preparation of beta-hydroxybutyrate dehydrogenase, indicating no significant contamination of this enzyme preparation with 3-hydroxyisobutyrate dehydrogenase. In normal individuals, plasma 3-OHIB concentration was 21 +/- 2 microM in the overnight fasted state and was higher in diabetic subjects (38 +/- 5 microM) and in subjects fasted for 72 h (97 +/- 4 microM). In the postabsorptive state, 3-OHIB was 33% the concentration of 3-OHB in normals and 17% that of 3-OHB in the diabetics.[1]

References

Contribution of 3-hydroxyisobutyrate to the measurement of 3-hydroxybutyrate in human plasma: comparison of enzymatic and gas-liquid chromatography-mass spectrometry assays in normal and in diabetic subjects. Avogaro, A., Bier, D.M. J. Lipid Res. (1989) [Pubmed]

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