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    Clin Chim Acta. 1995 Dec 29;243(2):129-36.

    Measurement of mevalonic acid in human urine by bench top gas chromatography-mass spectrometry.

    Source

    Laboratoire de Nutrition Humaine, Hôpital G. and R. Laënnec, Nantes, France.

    Abstract

    Urinary excretion of mevalonate was reported to be correlated with endogenous cholesterol biosynthesis. A method is described whereby mevalonate (MVA) concentration in urine is determined by bench top gas chromatography-mass spectrometry after extraction as mevalonalactone (MVL) and conversion to mevalonolactone mono-TMS derivative. Within- and between-assay coefficients of variation were 4.02% and 8%, respectively. The mean concentration of MVA in 24-h urine collections from ten normolipidemic urinary subjects was 203 +/- 49.6 ng/ml (range: 44-576 ng/ml). Administration of 40 mg of Pravastatin (an HMG-CoA reductase inhibitor) significantly decreased (approximately 50%) the night concentration of MVA in five healthy volunteers. This assay could be useful for investigation of endogenous cholesterol synthesis rate in various dyslipidemias and in response to drug treatment.

    PMID:
    8747489
    [PubMed - indexed for MEDLINE]

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