Pharmacokinetic Analysis of Diosgenin in Rat Plasma by a UPLC-MS/MS Approach
Open Access
- 30 September 2022
- journal article
- research article
- Published by Hindawi Limited in Journal of Analytical Methods in Chemistry
- Vol. 2022, 1-9
- https://doi.org/10.1155/2022/5607347
Abstract
Diosgenin, a steroidal sapogenin, has attracted attention worldwide owing to its pharmacological properties, including antitumor, cardiovascular protective, hypolipidemic, and anti-inflammatory effects. The current diosgenin analysis methods have the disadvantages of long analysis time and low sensitivity. The aim of the present study was to establish an efficient, sensitive ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) approach for pharmacokinetic analysis of diosgenin amorphous solid dispersion (ASD) using tanshinone IIA as an internal standard (IS). Male Sprague-Dawley rats were orally administered diosgenin ASD, and orbital blood samples were collected for analysis. Protein precipitation was performed with methanol-acetonitrile (50:50, v/v), and the analytes were separated under isocratic elution by applying acetonitrile and 0.03 formic acid aqueous solution at a ratio of 80:20 as the mobile phase. MS with positive electron spray ionization in multiple reaction monitoring modes was applied to determine diosgenin and IS with m/z 415.2271.2 and m/z 295.2277.1, respectively. This approach showed a low limit of quantification of 0.5ng/ml for diosgenin and could detect this molecule at a concentration range of 0.5 to 1,500ng/ml (r=0.99725). The approach was found to have intra- and inter-day precision values ranging from 1.42 to 6.91 and from 1.25 to 3.68, respectively. Additionally, the method showed an accuracy of -6.54 to 4.71. The recoveries of diosgenin and tanshinone IIA were 85.81100.27 and 98.29, respectively, with negligible matrix effects. Diosgenin and IS were stable under multiple storage conditions. Pharmacokinetic analysis showed that the Cmax and AUC0⟶t of diosgenin ASD were significantly higher than those of the bulk drug. A sensitive, simple, UPLC-MS/MS analysis approach was established and used for the pharmacokinetic analysis of diosgenin ASD in rats after oral administration.Keywords
Funding Information
- Science and Technology Research Youth Fund Project of Higher School in Hebei Province (QN2020241, QN2019167, H2021406014, NJKF202102, KY202101)
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