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Shi Y, Yang M, Pan X, Yu S, Wang X. Fabrication and characterization of glutathione‐responsive nanoparticles from the disulfide bond‐bridged block copolymer. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yongli Shi
- College of Pharmacy Xinxiang Medical University Xinxiang China
| | - Mingbo Yang
- College of Pharmacy Xinxiang Medical University Xinxiang China
| | - Xiaofei Pan
- College of Pharmacy Xinxiang Medical University Xinxiang China
| | - Shasha Yu
- College of Pharmacy Xinxiang Medical University Xinxiang China
| | - Xiao Wang
- College of Pharmacy Xinxiang Medical University Xinxiang China
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Tang C, Li L, Ma X, Wang J, Chen B, Dai X, Zhang Y, Chen X. Qualitative and quantitative determination of anaprazole and its major metabolites in human plasma. J Pharm Biomed Anal 2020; 183:113146. [PMID: 32086126 DOI: 10.1016/j.jpba.2020.113146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/30/2019] [Accepted: 02/04/2020] [Indexed: 12/11/2022]
Abstract
Anaprazole is a novel proton pump inhibitor under development for the treatment of gastric and duodenal ulcers. In the present study, an ultra-performance liquid chromatography-ultraviolet detector/quadrupole time-of-flight mass spectrometry method was developed for the metabolic profiling of human plasma after an oral administration of 40 mg anaprazole. The principal metabolic pathways were identified as sulfoxide reduction to thioether (M8-1), dehydrogenation (M21-1), sulfoxide oxidation to sulfone (M16-3), and sulfoxide reduction with O-demethylation to form carboxylic acid (M7-1). Anaprazole, M8-1, M16-3, M21-1, and M7-1 were selected and further quantified in human plasma by using a rapid and sensitive liquid chromatography-tandem mass spectrometry method. Anaprazole and its four metabolites were extracted from 50 of μL plasma by acetonitrile protein precipitation. Chromatographic retention and separation were achieved on an Kinetex XB-C18 column (50 mm × 4.6 mm i.d., 5 μm) under gradient elution using 5 mM ammonium acetate with 0.005 % ammonium hydroxide and methanol with 0.005 % ammonium hydroxide as the mobile phase. Positive electrospray ionization was performed using multiple reaction monitoring with transitions of m/z 402.2→242.2, 386.2→226.2, 400.2→242.2, 418.2→282.2, and 386.2→161.2 for anaprazole, M8-1, M21-1, M16-3, and M7-1, respectively. This method was linear in the range of 5.00-3000 ng/mL for anaprazole and 1.00-600 ng/mL for the four metabolites. The lower limit of quantitation was established at 5.00 ng/mL for anaprazole and 1.00 ng/mL for the metabolites. The quantitative method was used to evaluate the pharmacokinetics of anaprazole in phase I clinical trials.
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Affiliation(s)
- Chongzhuang Tang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing, 100049, China
| | - Liang Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
| | - Xifeng Ma
- XuanZhu Pharma, 2518 Tianchen Street, Jinan, Shandong, China
| | - Jin Wang
- XuanZhu Pharma, 2518 Tianchen Street, Jinan, Shandong, China
| | - Bo Chen
- XuanZhu Pharma, 2518 Tianchen Street, Jinan, Shandong, China
| | - Xiaojian Dai
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
| | - Yifan Zhang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China
| | - Xiaoyan Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai, 201203, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing, 100049, China.
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