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  • Title: A sensitive method for determination of furanodiene in rat plasma using liquid chromatography/tandem mass spectrometry and its application to a pharmacokinetic study.
    Author: Pei L, Liu S, Zheng J, Chen X.
    Journal: Biomed Chromatogr; 2012 Jul; 26(7):826-32. PubMed ID: 22052715.
    Abstract:
    Furanodiene, a sesquiterpene component extracted from the essential oil of the rhizome of Curcuma wenyujin Y.H. Chen et C. Ling (Wen Ezhu), is widely used in traditional Chinese medicine. A sensitive analytical method was established and validated for furanodiene in rat plasma, which was further applied to assess the pharmacokinetics of furanodiene in rats receiving a single dose of furanodiene. Liquid chromatography tandem mass spectrometry (LC/MS/MS) in multiple reaction monitoring mode was used in the method and costundide was used as internal standard. A simple protein precipitation based on methanol was employed. The simple sample cleanup increased the throughput of the method substantially. The method was validated over the range of 1-1000 ng/mL with a correlation coefficient >0.99. The lower limit of quantification was 1 ng/mL for furanodiene in plasma. Intra- and inter-day accuracies for furanodiene were 88-115 and 102-107%, and the inter-day precision less than 14.4%. After a single oral dose of 10 mg/kg of furanodiene, the mean peak plasma concentration of furanodiene was 66.9 ± 23.4 ng/mL at 1 h, the area under the plasma concentration-time curve (AUC(0-10 h)) was 220 ± 47.8 h ng/mL, and the elimination half-life was 1.53 ± 0.06 h. After an intravenous adminstration of furanodiene at a dosage of 5 mg/kg, the area under the plasma concentration-time curve was 225 ± 76.1 h⋅ng/mL, and the elimination half-life was 2.40 ± 1.18 h. Based on this result, the oral bioavailability of furanodiene in rats at 10 mg/kg is 49.0%.
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