Journal
BIOMEDICAL CHROMATOGRAPHY
Volume 26, Issue 5, Pages 660-665Publisher
WILEY-BLACKWELL
DOI: 10.1002/bmc.1712
Keywords
[6]-gingerol; LC-MS; MS; pharmacokinetics; elimination; dose-linearity
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Funding
- National Research Foundation of Korea, Ministry of Education & Science Technology [20100022780]
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This study describes the development of a rapid and sensitive high-performance liquid chromatographyelectrospray ionization tandem mass spectrometry (LC-MS/MS) assay for the quantification of [6]-gingerol in mouse plasma and application to a pharmacokinetic study after dose ranging in mice. The assay involved a protein precipitation step with acetonitrile and an isocratic elution using a mobile phase consisting of acetonitrile and water containing 0.1% formic acid (80:20 v/v). The multiple reaction monitoring was based on the transition of m/z = 277.2 -> 177.1 for [6]-gingerol and 294.2 -> 137.1 for nonivamide (internal standard). The assay was validated to demonstrate the specificity, linearity, recovery, accuracy, precision and stability. The calibration curves were linear over the wide concentration range of 10-10,000 ng/mL (r >= 0.9988). The lower limit of quantification was 10 ng/mL using a small volume of mouse plasma (20 mu L). The method was successfully applied to a pharmacokinetic study in mice after intravenous injection of [6]-gingerol at 1.5, 3 and 6 mg/kg doses. The pharmacokinetics of [6]-gingerol were linear over the dose range studied as demonstrated by the linear increase in area under the concentration-time curve (AUCinf) with no significant change in the systemic clearance (Cls), volume of distribution (Vss) and elimination half-life (t1/2) as a function of dose. Copyright (c) 2011 John Wiley & Sons, Ltd.
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