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Chang Y, Li X, Jiang J, Gui L, Wan L, Zhou X, Liao L, Li K, Lan K. Separation of bile acid isomer plays a pivotal role in bioequivalence evaluation of ursodeoxycholic acid. J Pharm Biomed Anal 2024; 239:115882. [PMID: 38071766 DOI: 10.1016/j.jpba.2023.115882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/25/2023] [Accepted: 11/25/2023] [Indexed: 01/05/2024]
Abstract
Based on our experiences in bile acid profiling, this work developed and validated a liquid chromatography electrospray ionization tandem mass spectrometry method to separate endogenous bile acid isomers and quantitatively determine ursodeoxycholic acid (UDCA), glycoursodeoxycholic acid (GUDCA) and tauroursodeoxycholic acid (TUDCA) in human plasma. The separation was performed on a CORTECS C18 column with the mobile phase consisting of 1.0 mM ammonium acetate and acetonitrile-methanol (80:20, v/v). UDCA, GUDCA and TUDCA were detected in the negative mode on a triple-quadrupole mass spectrometer at the ion transitions of m/z 391 > 391, m/z 448 > 74, m/z 498 > 80, respectively. Phosphate buffer was employed as the surrogate matrix to establish the isotope internal standard corrected calibration curves of analytes. The background-method with a linearity range of 10-200 ng/mL was partially validated to determine the endogenous levels of analytes in blank human plasma, which was incorporated into the validation of bioequivalence-method with a linearity range of 50-10000 ng/mL. The bioequivalence (BE)-method was fully validated with special focus on matrix effects, which have been critically evaluated using the precision and accuracy of quality control samples prepared from the blank human plasma of 12 individuals. It is disclosed for the first time that the BE results of UDCA formulation may yield false results when the method is insufficient to separate UDCA from isoursodeoxycholic acid, a microbial metabolite of both endogenous and exogenous UDCA. The present method has established a milestone for the evaluation of UDCA formulations and is expected to provide a valuable reference for the bioanalytical development of endogenous medicinal products.
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Affiliation(s)
- Yanbo Chang
- Department of Analytical Toxicology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China; NMPA Key Laboratory for Technical Research on Drug Products In Vitro and In Vivo Correlation, Sichuan Provincial Institute for Food and Drug Control, Chengdu, China
| | - Xuejing Li
- Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd., Chengdu, China
| | - Jinping Jiang
- Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd., Chengdu, China
| | - Lanlan Gui
- Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd., Chengdu, China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Linfei Wan
- Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd., Chengdu, China
| | - Xiangxiang Zhou
- Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd., Chengdu, China
| | - Linchuan Liao
- Department of Analytical Toxicology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China.
| | - Kexin Li
- Clinical Trial Center, Beijing Hospital, Beijing, China.
| | - Ke Lan
- Chengdu Cynogen Bio-pharmaceutical Tech. Co., Ltd., Chengdu, China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China.
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