1
|
Lu T, Wang X, Zhang Q, Liu K, Xu T, Wang Q, Zhao P, Cheng Z. Validated LC-MS/MS method for quantitation of solasodine in rat urine and feces: Blocking nonspecific adsorption. ACTA CHROMATOGR 2022. [DOI: 10.1556/1326.2022.01079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Solasodine, a steroidal alkaloid, is distributed extensively in Solanaceae plants with multiple biological activities such as neuroprotection, antineoplastic and anticonvulsant activities. However, there is little information about the excretion of intact solasodine in vivo. To investigate its excretion, a reliable LC-MS/MS method for quantitation solasodine in rat urine and feces was established and validated. Sample preparation was carried out by liquid-liquid extraction using MTBE as extractant. Moreover, rat urine was preconditioned with BSA, an anti-adsorptive additive, to prevent the nonspecific binding of solasodine to containers and tubes. The method was validated over the range of 4–2000 ng mL−1. The correlation coefficient (r
2) were all above 0.999. The intra- and inter-day precision and accuracy were within 16.9% and between −11.0 and 8.9%, respectively. The recovery of solasodine in urine and feces was in the range of 72.5–80.3 and 75.7–80.2%, respectively. IS-normalized matrix factor ranged from 0.94 to 1.12 with RSD% ≤4.02%. This method was successfully applied to the excretion study of solasodine following oral and intravenous administration.
Collapse
Affiliation(s)
- Tiantian Lu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Xiaohong Wang
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Qi Zhang
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Kun Liu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Tongxin Xu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Quande Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yucai Road, Qixing District, Guilin, Guangxi 541004, China
| | - Pengfei Zhao
- Department of Clinical Pharmacy, Weifang People's Hospital, 151 Guangwen Street, Kuiwen District, 261031, Weifang, Shandong 261053, China
| | - Zhongzhe Cheng
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| |
Collapse
|
2
|
Qu M, Xue P, Zhang Q, Lu T, Liu K, Hu B, Pang J, Xiao Q, Xu T, Wang Q, Cheng Z. Pharmacokinetics, oral bioavailability and metabolic analysis of solasodine in mice by dried blood spot LC-MS/MS and UHPLC-Q-Exactive MS. J Pharm Biomed Anal 2021; 210:114542. [PMID: 34979491 DOI: 10.1016/j.jpba.2021.114542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 12/13/2022]
Abstract
Solasodine, a major ingredient in Solanaceae family, has various biological functions such as inducing neurogenesis, anticonvulsant and anti-tumor. Its risk assessment has also drawn public attention. However, little is known about its oral bioavailability and metabolic process. In this study, an liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for the quantification of solasodine in mice dried blood spot (DBS) samples. To block nonspecific adsorption, DBS samples were pretreated with bovine serum albumin (BSA) and then extracted with ethyl acetate. This method was applied to a pharmacokinetic and bioavailability study of solasodine. The absolute bioavailability was only 1.28%. Thereafter, its metabolites in mice were characterized using an ultra-performance liquid chromatography Q-Exactive high-resolution mass spectrometer (UHPLC-QE-HRMS). Several isomeric metabolites were well separated and differentiated using their retention time, fragmentation pathways and correspondingly fragmentation rules of solasodine. As a result, 21 metabolites were characterized including 16 phase I and 5 phase II metabolites. The proposed metabolic pathways showed that solasodine mainly experienced oxidation, dehydration, dehydrogenation and sulfation. These results could help us to better understand the efficacy and safety of solasodine.
Collapse
Affiliation(s)
- Mei Qu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Peng Xue
- School of Public Health, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Qi Zhang
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Tiantian Lu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Kun Liu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Bingying Hu
- Zhejiang Key Laboratory of Neuropsychiatric Drug Research, School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 310013, China
| | - Jingjing Pang
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Qianqian Xiao
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Tongxin Xu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Quande Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yucai Road, Qixing District, Guilin, Guangxi 541004, China
| | - Zhongzhe Cheng
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China.
| |
Collapse
|
3
|
Toxicokinetics of 11 Gelsemium Alkaloids in Rats by UPLC-MS/MS. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8247270. [PMID: 32733957 PMCID: PMC7378607 DOI: 10.1155/2020/8247270] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/01/2020] [Accepted: 06/16/2020] [Indexed: 11/18/2022]
Abstract
Gelsemium elegans (Gardn. & Champ.) Benth. is a plant belonging to the genus Gelsemium (family Gelsemiaceae), and its main components are alkaloids. It is a Chinese traditional medicinal plant and notoriously known as a highly toxic medicine. However, a method has not yet been found for the simultaneous detection of 11 Gelsemium alkaloids in rat plasma, and the toxicokinetics of 11 Gelsemium alkaloids after intravenous administration has not been reported. In this work, we have developed a sensitive and rapid method of ultraperformance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) for the detection of 11 Gelsemium alkaloids in rat plasma. The toxicokinetic behavior was also investigated, so as to provide a reference of the scientific properties of Gelsemium elegans and improve the efficacy and safety of drugs. Sixty-six Sprague-Dawley rats were randomly divided into 11 groups, six rats in each group. Each group was intravenously given one alkaloid (0.1 mg/kg), respectively. A Waters UPLC BEH C18 column (50 mm × 2.1 mm, 1.7 μm) was used for chromatographic separation. Methanol and water (containing 0.1% formic acid) were used for the mobile phase with gradient elution. Multiple reactions were monitored, and positive electrospray ionization was used for quantitative analysis. The precision was less than 16%, and the accuracy was between 86.9% and 113.2%. The extraction efficiency was better than 75.8%, and the matrix effects ranged from 88.5% to 107.8%. The calibration curves were in the range of 0.1–200 ng/mL, with a correlation coefficient (R2) greater than 0.995. The UPLC-MS/MS method was successfully applied to the toxicokinetics of 11 Gelsemium alkaloids in rats after intravenous administration (0.1 mg/kg for each alkaloid). The results of the toxicokinetics provide a basis for the pharmacology and toxicology of Gelsemium alkaloids and scientific evidence for the clinical use of Gelsemium alkaloids.
Collapse
|
4
|
Pharmacokinetics of Lusutrombopag, a Novel Thrombopoietin Receptor Agonist, in Rats by UPLC-MS/MS. Int J Anal Chem 2020; 2020:7290470. [PMID: 32550846 PMCID: PMC7277053 DOI: 10.1155/2020/7290470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 11/26/2022] Open
Abstract
Lusutrombopag is a second oral thrombopoietin (TPO) receptor agonist that selectively acts on human TPO receptors. In the study, UPLC-MS/MS was used to establish a selective and sensitive method to determine lusutrombopag with poziotinib as IS (internal standard) in rat plasma. Samples were prepared by precipitating protein with acetonitrile as a precipitant. Separation of lusutrombopag and poziotinib was performed on a CORTECS UPLC C18 column (2.1 ∗ 50 mm, 1.6 μm). The mobile phase (acetonitrile and water containing 0.1% formic acid) with gradient elution was set at a flow rate of 0.4 ml/min. The mass spectrometric measurement was conducted under positive ion mode using multiple reaction monitoring (MRM) of m/z 592.97 ⟶ 491.02 for lusutrombopag and m/z for poziotinib (IS) 492.06 ⟶ 354.55. The linear calibration curve of the concentration range was 2–2000 ng/ml for lusutrombopag, with a lower limit of quantification (LLOQ) of 2 ng/ml. RSD of interday and intraday precision were both no more than 9.66% with the accuracy ranging from 105.82% to 108.27%. The extraction recovery of lusutrombopag was between 82.15% and 90.34%. The developed and validated method was perfectly used in the pharmacokinetic study of lusutrombopag after oral administration in rats.
Collapse
|
5
|
Recent advances on HPLC/MS in medicinal plant analysis—An update covering 2011–2016. J Pharm Biomed Anal 2018; 147:211-233. [DOI: 10.1016/j.jpba.2017.07.038] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/28/2017] [Accepted: 07/28/2017] [Indexed: 12/13/2022]
|
6
|
Chester K, Paliwal S, Khan W, Ahmad S. UPLC-ESI-MS/MS and HPTLC Method for Quantitative Estimation of Cytotoxic Glycosides and Aglycone in Bioactivity Guided Fractions of Solanum nigrum L. Front Pharmacol 2017; 8:434. [PMID: 28729835 PMCID: PMC5498608 DOI: 10.3389/fphar.2017.00434] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 06/16/2017] [Indexed: 11/13/2022] Open
Abstract
Solanum nigrum L., is traditionally used for the management of the various liver disorders. Investigating the effect of polarity based fractionation of S. nigrum for its hepatoprotective effect on Hep G2 cells in vitro to provide base of its activity by quantifying in steroidal glycosides responsible for hepatoprotective potential. A new UPLC-ESI-MS/MS method following a high performance thin layer chromatography (HPTLC) has been developed and validated for quantification of steroidal glycosides and aglycone (solasonine, solamargine, and solasodine, respectively). The in vitro antioxidant potential, total phenolics, and flavonoid content were also determined in different fractions. The newly developed UPLC-ESI-MS/MS and HPTLC methods were linear (r2 ≥ 0.99), precise, accurate, and showing recovery more than 97%. The n-butanol enriched fraction of S. nigrum berries was found to be the most potent hepatoprotective fraction against all other fractions as it showed significantly (p < 0.01) better in vitro anti-oxidant potential than other fractions. Quantification by both methods revealed that, content of steroidal glycosides and aglycones are more than 20% in n-butanol fraction as compared to other fractions. The screened steroidal glycoside n-butanol enriched fraction underwent bioefficacy studies against D-galactosamine and H2O2 induced toxicity in HepG2 cell line showing significant (p < 0.05) liver protection. However, developed method can be used for the quality control analysis with respect to targeted metabolites and it can be explored for the pharmacokinetic and pharmacodynamic analysis in future.
Collapse
Affiliation(s)
| | | | - Washim Khan
- Bioactive Natural Product Laboratory, Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Jamia Hamdard UniversityNew Delhi, India
| | - Sayeed Ahmad
- Bioactive Natural Product Laboratory, Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Jamia Hamdard UniversityNew Delhi, India
| |
Collapse
|
7
|
Wang S, Jin X, Xu Y, Hu X, Lv Z, Wang YS. Studies on pharmacokinetics, body distribution, plasma protein binding rate, and excretion of 1-methyl hydantoin in rats in vivo. J LIQ CHROMATOGR R T 2017. [DOI: 10.1080/10826076.2017.1287725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Shihan Wang
- Department of Pharmaceutics, College of Pharmacy, Jilin University, Changchun, China
| | - Xiangqun Jin
- Department of Pharmaceutics, College of Pharmacy, Jilin University, Changchun, China
| | - Yang Xu
- Department of Pharmaceutics, Changchun Medical College, Changchun, China
| | - Xinyu Hu
- Department of Pharmaceutics, College of Pharmacy, Jilin University, Changchun, China
| | - Zuying Lv
- Department of Pharmaceutics, College of Pharmacy, Jilin University, Changchun, China
| | - Yong-Sheng Wang
- Department of Pharmaceutics, College of Pharmacy, Jilin University, Changchun, China
| |
Collapse
|
8
|
Validated UPLC–MS/MS method for determination of hordenine in rat plasma and its application to pharmacokinetic study. J Pharm Biomed Anal 2015; 111:131-7. [DOI: 10.1016/j.jpba.2015.03.032] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 03/20/2015] [Accepted: 03/26/2015] [Indexed: 11/20/2022]
|
9
|
Wen C, Wang S, Huang X, Liu Z, Lin Y, Yang S, Ma J, Zhou Y, Wang X. Determination and validation of hupehenine in rat plasma by UPLC-MS/MS and its application to pharmacokinetic study. Biomed Chromatogr 2015; 29:1805-10. [PMID: 26033449 DOI: 10.1002/bmc.3499] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/22/2015] [Accepted: 04/23/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Congcong Wen
- Laboratory Animal Centre; Wenzhou Medical University; Wenzhou 325035 China
| | - Shuanghu Wang
- The Laboratory of Clinical Pharmacy, The People's Hospital of Lishui 323000; Wenzhou Medical University; Lishui China
| | - Xueli Huang
- Analytical and Testing Center; Wenzhou Medical University; Wenzhou 325035 China
| | - Zezheng Liu
- Laboratory Animal Centre; Wenzhou Medical University; Wenzhou 325035 China
| | - Yingying Lin
- Laboratory Animal Centre; Wenzhou Medical University; Wenzhou 325035 China
| | - Suping Yang
- Laboratory Animal Centre; Wenzhou Medical University; Wenzhou 325035 China
| | - Jianshe Ma
- Analytical and Testing Center; Wenzhou Medical University; Wenzhou 325035 China
| | - Yunfang Zhou
- The Laboratory of Clinical Pharmacy, The People's Hospital of Lishui 323000; Wenzhou Medical University; Lishui China
| | - Xianqin Wang
- Analytical and Testing Center; Wenzhou Medical University; Wenzhou 325035 China
| |
Collapse
|
10
|
Wang S, Wu H, Huang X, Geng P, Wen C, Ma J, Zhou Y, Wang X. Determination of N-methylcytisine in rat plasma by UPLC-MS/MS and its application to pharmacokinetic study. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 990:118-24. [PMID: 25864013 DOI: 10.1016/j.jchromb.2015.03.025] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 03/21/2015] [Accepted: 03/27/2015] [Indexed: 10/23/2022]
Abstract
In this work, a sensitive and selective UPLC-MS/MS method for determination of N-methylcytisine in rat plasma is developed. After addition of hordenine as an internal standard (IS), protein precipitation by acetonitrile-methanol (9:1, v/v) was used to prepare samples. Chromatographic separation was achieved on a UPLC BEH HILIC (2.1 mm×100mm, 1.7μm) with acetonitrile (containing 10mM ammonium formate) and water (containing 0.1% formic acid and 10mM ammonium formate) as the mobile phase with gradient elution. An electrospray ionization source was applied and operated in positive ion mode; multiple reaction monitoring (MRM) mode was used for quantification using target fragment ions m/z 205.1→58.0 for N-methylcytisine, and m/z 166.1→121.0 for IS. Calibration plots were linear throughout the range 2-2000ng/mL for N-methylcytisine in rat plasma. Mean recoveries of N-methylcytisine in rat plasma ranged from 86.1% to 94.8%. RSD of intra-day and inter-day precision were both<13%. The accuracy of the method was between 94.5% and 109.4%. The method was successfully applied to pharmacokinetic study of N-methylcytisine after either oral or intravenous administration. For the first time, the absolute bioavailability of N-methylcytisine was reported as high as 55.5%.
Collapse
Affiliation(s)
- Shuanghu Wang
- The Laboratory of Clinical Pharmacy, The People's Hospital of Lishui, Wenzhou Medical University, Lishui 323000, China
| | - Haiya Wu
- Department of Anesthesiology, Critical Care and Pain Medicine, the Second Affiliated Hospital, Wenzhou Medical University, Wenzhou 325000, China
| | - Xueli Huang
- Analytical and Testing Center, Wenzhou Medical University, Wenzhou 325035, China
| | - Peiwu Geng
- The Laboratory of Clinical Pharmacy, The People's Hospital of Lishui, Wenzhou Medical University, Lishui 323000, China
| | - Congcong Wen
- Analytical and Testing Center, Wenzhou Medical University, Wenzhou 325035, China
| | - Jianshe Ma
- Analytical and Testing Center, Wenzhou Medical University, Wenzhou 325035, China
| | - Yunfang Zhou
- The Laboratory of Clinical Pharmacy, The People's Hospital of Lishui, Wenzhou Medical University, Lishui 323000, China.
| | - Xianqin Wang
- Analytical and Testing Center, Wenzhou Medical University, Wenzhou 325035, China.
| |
Collapse
|
11
|
Zhou Y, Wang S, Ding T, Wu M, Geng P, Zhang Q, Ma J. Pharmacokinetic interaction study of combining imatinib with dasatinib in rats by UPLC-MS/MS. Drug Dev Ind Pharm 2015; 41:1948-53. [PMID: 25632980 DOI: 10.3109/03639045.2015.1004182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This study examined whether oral administration of dasatinib to the rats with imatinib led to any pharmacokinetic interactions. Twenty-four rats were divided randomly into three groups, imatinib group (imatinib 25 mg/kg, n = 8), dasatinib group (dasatinib 15 mg/kg, n = 8) and co-administration group (dasatinib 15 mg/kg and imatinib 25 mg/kg, n = 8). The concentration of imatinib and dasatinib in rat plasma was determined by a sensitive and simple UPLC-MS/MS method. There was statistical pharmacokinetics difference for imatinib in the imatinib group and co-administration group, when co-oral administration imatinib with dasatinib, MRT(0-t) increased (p < 0.01). There was statistical pharmacokinetics difference for dasatinib in the dasatinib group and co-administration group, when co-oral administration dasatinib with imatinib, Cmax and AUC increased (p < 0.01), CL and V decreased (p < 0.01). These data indicate dasatinib could slightly influence the pharmacokinetic profile of imatinib in rats, and imatinib could influence the pharmacokinetic profile of dasatinib in rats, which might cause drug-drug interactions when using imatinib with dasatinib.
Collapse
Affiliation(s)
- Yunfang Zhou
- a The Laboratory of Clinical Pharmacy , People's Hospital of Lishui City, Wenzhou Medical University , Lishui , China
| | - Shuanghu Wang
- a The Laboratory of Clinical Pharmacy , People's Hospital of Lishui City, Wenzhou Medical University , Lishui , China
| | - Ting Ding
- a The Laboratory of Clinical Pharmacy , People's Hospital of Lishui City, Wenzhou Medical University , Lishui , China
| | - Mingdong Wu
- a The Laboratory of Clinical Pharmacy , People's Hospital of Lishui City, Wenzhou Medical University , Lishui , China
| | - Peiwu Geng
- a The Laboratory of Clinical Pharmacy , People's Hospital of Lishui City, Wenzhou Medical University , Lishui , China
| | - Qingwei Zhang
- b Shanghai Institute of Pharmaceutical Industry , Shanghai , China , and
| | - Jianshe Ma
- c Function Experiment Teaching Center, Wenzhou Medical University , Wenzhou , China
| |
Collapse
|
12
|
Ma J, Wang S, Zhang M, Zhang Q, Zhou Y, Lin C, Lin G, Wang X. Simultaneous determination of bupropion, metroprolol, midazolam, phenacetin, omeprazole and tolbutamide in rat plasma by UPLC-MS/MS and its application to cytochrome P450 activity study in rats. Biomed Chromatogr 2015; 29:1203-12. [PMID: 25582505 DOI: 10.1002/bmc.3409] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 11/09/2014] [Accepted: 11/17/2014] [Indexed: 12/22/2022]
Abstract
A specific ultra-performance liquid chromatography tandem mass spectrometry method is described for the simultaneous determination of bupropion, metroprolol, midazolam, phenacetin, omeprazole and tolbutamide in rat plasma with diazepam as internal standard, which are the six probe drugs of the six cytochrome P450 isoforms CYP2B6, CYP2D6, CYP3A4, CYP1A2, CYP2C19 and CYP2C9. Plasma samples were protein precipitated with acetonitrile. The chromatographic separation was achieved using a UPLC® BEH C18 column (2.1 × 100 mm, 1.7 µm). The mobile phase consisted of acetonitrile and water (containing 0.1% formic acid) with gradient elution. The triple quadrupole mass spectrometric detection was operated by multiple reaction monitoring in positive electrospray ionization. The precisions were <13%, and the accuracy ranged from 93.3 to 110.4%. The extraction efficiency was >90.5%, and the matrix effects ranged from 84.3 to 114.2%. The calibration curves in plasma were linear in the range of 2-2000 ng/mL, with correlation coefficient (r(2) ) >0.995. The method was successfully applied to pharmacokinetic studies of the six probe drugs of the six CYP450 isoforms and used to evaluate the effects of erlotinib on the activities of CYP2B6, CYP2D6, CYP3A4, CYP1A2, CYP2C19 and CYP2C9 in rats. Erlotinib may inhibit the activity of CYP2B6 and CYP3A4, and may induce CYP2C9 of rats.
Collapse
Affiliation(s)
- Jianshe Ma
- Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, Shanghai, 200063, China.,Analytical and Testing Center of Wenzhou Medical University, Wenzhou, 325035, China
| | - Shuanghu Wang
- The Laboratory of Clinical Pharmacy, The People's Hospital of Lishui, Lishui, 323000, China
| | - Meiling Zhang
- Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, Shanghai, 200063, China.,Analytical and Testing Center of Wenzhou Medical University, Wenzhou, 325035, China
| | - Qingwei Zhang
- Shanghai Institute of Pharmaceutical Industry, Shanghai, 200437, China
| | - Yunfang Zhou
- The Laboratory of Clinical Pharmacy, The People's Hospital of Lishui, Lishui, 323000, China
| | - Chongliang Lin
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Guanyang Lin
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xianqin Wang
- Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, Shanghai, 200063, China.,Analytical and Testing Center of Wenzhou Medical University, Wenzhou, 325035, China
| |
Collapse
|