LC-ESI–MS/MS method for bioanalytical determination of osteogenic phytoalexin, medicarpin, and its application to preliminary pharmacokinetic studies in rats

Taneja, Isha ; Raju, Kanumuri Siva Rama ; Challagundla, Muralikrishna ; Raghuvanshi, Ashutosh ; Goel, Atul ; Wahajuddin, Muhammad (2015) LC-ESI–MS/MS method for bioanalytical determination of osteogenic phytoalexin, medicarpin, and its application to preliminary pharmacokinetic studies in rats Journal of Chromatography B, 1001 . pp. 9-16. ISSN 1570-0232

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Official URL: http://doi.org/10.1016/j.jchromb.2015.06.025

Related URL: http://dx.doi.org/10.1016/j.jchromb.2015.06.025

Abstract

Medicarpin is the active phytoalexin found in the stem bark of Butea monosperma having potent osteogenic activity. An LC-ESI–MS/MS was developed and validated for quantification of medicarpin in rat plasma using liquid-liquid extraction technique and diethyl ether as the extraction solvent. Medicarpin was separated on RP18 column (4.6 mm × 50 mm, 5.0 μm) using methanol and 10 mM ammonium acetate (pH 4.0) in the ratio of 80:20 (v/v) as mobile phase. The method was linear within the concentration range of 1–500 ng/mL and its sensitivity was 1 ng/mL. The precision value for intra- and inter-day assays and stability assays was within 0.88–14.22% while the accuracy ranged between 87.46–116.0% at all four QC levels. The validated method was successfully applied to study the preclinical pharmacokinetics of medicarpin in rats. Medicarpin showed multiple peak phenomenon upon oral administration. Its oral bioavailability was 17.43%. It was found to be a rapidly absorbed (Tmax = 15 min), 81.61% protein bound and pH stable compound. The present study provides important information regarding preliminary pharmacokinetics of medicarpin for its further exploration as a potential therapeutic agent.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Bioavailability; Pharmacokinetics; Bioanalytical Method Validation; Extraction Recovery; LC–MS/MS.
ID Code:117964
Deposited On:07 May 2021 08:30
Last Modified:07 May 2021 08:30

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