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Quantification of mesembrine and mesembrenone in mouse plasma using UHPLC-QToF-MS: Application to a pharmacokinetic study

https://gifu-pu.repo.nii.ac.jp/records/13195
https://gifu-pu.repo.nii.ac.jp/records/13195
84afc56d-7383-49df-9dae-fd46995d9604
Item type 研究室原著論文(1)
公開日 2018-06-14
タイトル
タイトル Quantification of mesembrine and mesembrenone in mouse plasma using UHPLC-QToF-MS: Application to a pharmacokinetic study
言語 en
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言語 eng
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資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
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アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
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値 Sceletium tortuosum, is an indigenous herb of South Africa which is widely used as an herbal supplement in the treatment of anxiety and stress. Mesembrenone and mesembrine are the two main pharmacologically active alkaloids present in the extract. Despite the wide therapeutic applications of Sceletium extract, there are no reports of in vivo pharmacokinetic properties or analytical methods to quantify these two important alkaloids in plasma. Therefore, the current study aimed to develop and validate a simple and sensitive analytical method for simultaneous quantification of mesembrenone and mesembrine in mouse plasma. Ultra‐high‐performance liquid chromatography–mass spectrometry (UHPLC/QToF‐MS) was employed to achieve our objectives. The compounds were extracted using protein precipitation by methanol (100%) with quinine as an internal standard. The lower limit of quantification for both the compounds was 10 ng/mL. The extraction recovery was between 87 and 93% for both compounds with no matrix effects on the analysis. The accuracy was between 89.5 and 106% and precision was <12.6% for all quality control samples. This validated method was successfully applied to evaluate the i.v. plasma pharmacokinetics of mesembrine and mesembrenone in mouse. However, the oral bioavailability of these alkaloids was poor and the plasma levels were below the detection limits.
書誌情報 en : Biomedical Chromatography

巻 31, 号 3, 発行日 2016-08-15
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