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Guo L, Mao J, Zhang Q, Fan W, Wang D, Li Z, Huang J, Xie J. Pharmacokinetic and pharmacodynamic studies of nicotine in rat brain: a simultaneous investigation of nicotine metabolites and the release of neurotransmitters in vivo. Front Chem 2023; 11:1275478. [PMID: 37937208 PMCID: PMC10626537 DOI: 10.3389/fchem.2023.1275478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023] Open
Abstract
Introduction: The body's ability to metabolize nicotine and the disposition of nicotine in the brain are important determinants of its exposure. Limited knowledge about the near real-time changes of neurochemicals during the brain nicotine metabolic process hinders the recognition of its multiple neuropharmacological effects. Methods: An online microdialysis coupled with UHPLC-HRMS/MS method for the in vivo multi-analysis of nicotine metabolites and several neurotransmitters in rat brain was developed. Whether the systemic modulation of metabolic enzyme CYP2B would modulate nicotine pharmacokinetics and local neurochemical effects was further investigated. Results: The dynamic profiles of over 10 nicotine metabolites and neurotransmitters were simultaneously obtained after a single injection of nicotine (2 mg·kg-1, i.p.) using the new method. Proadifen pretreatment (50 mg·kg-1·d-1, i.p., 4 days) caused significant inhibition of brain CYP2B1 activity. When exposed to nicotine, the brain C max of nicotine was 1.26 times higher and the levels of nicotine metabolites, nornicotine, and nicotine-N-oxide, were decreased by 85.3% and 34.4% in proadifen-pretreated rats. The higher level of brain nicotine induced a greater release of dopamine, serotonin, glutamate, and γ-amino-butyric acid in the nucleus accumbens. The concentrations of nicotine and dopamine were positively correlated, and the average levels of γ-amino-butyric acid and serotonin were 2.7 and 1.2 times higher, respectively, under the inhibition of nicotine metabolism. Discussion: These results demonstrated that inhibiting nicotine metabolism in rats can enhance the residence of brain nicotine and its local neurotransmitter effects. The metabolic activity of nicotine under different physiological conditions could regulate nicotine's bioavailability and its resulting pharmacology.
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Affiliation(s)
- Lulu Guo
- Department of Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, China
- Beijing Life Science Academy, Beijing, China
- Food Laboratory of Zhongyuan, Zhengzhou University, Zhengzhou, China
| | - Jian Mao
- Beijing Life Science Academy, Beijing, China
- Food Laboratory of Zhongyuan, Zhengzhou University, Zhengzhou, China
| | | | - Wu Fan
- Beijing Life Science Academy, Beijing, China
| | | | - Zhonghao Li
- Beijing Life Science Academy, Beijing, China
| | - Jiaqiang Huang
- Department of Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, China
| | - Jianping Xie
- Department of Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, China
- Beijing Life Science Academy, Beijing, China
- Food Laboratory of Zhongyuan, Zhengzhou University, Zhengzhou, China
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Aldeek F, Lopez V, Miller JH. Salting-Out-Assisted Liquid-Liquid Extraction Method for the Determination of Nicotine from Oral Traditional and Innovative Tobacco Products Using UPLC-MS/MS. ACS OMEGA 2023; 8:31256-31264. [PMID: 37663509 PMCID: PMC10468829 DOI: 10.1021/acsomega.3c03474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 08/08/2023] [Indexed: 09/05/2023]
Abstract
In this study, we developed and validated a novel method that allows for the extraction and quantitation of nicotine from a variety of commercially available oral tobacco products including loose and pouched traditional moist smokeless tobacco products, and oral tobacco-derived nicotine (OTDN) lozenges, gums, and pouches. The method employed an extraction technique consisting of salting-out assisted liquid-liquid extraction using sodium hydroxide and acetonitrile in conjunction with ultra-high pressure liquid chromatography coupled to mass spectrometry. Accurate quantitation was obtained using nicotine methyl-d3 isotopically labeled internal standard. Chromatographic separation of nicotine and nicotine methyl-d3 internal standard was achieved using a Waters Acquity C18 column (50 mm × 2.1 mm i.d., 2.5 μm) with 10 mM ammonium acetate buffer (pH = 10) and acetonitrile as mobile phase A and B, respectively. Using a gradient elution and a flow rate of 0.4 mL/min for 5 min runtime, nicotine eluted at 1.74 min. The method was validated according to ICH guidelines for all the sample types with an accuracy for nicotine within 89-109%. Repeatability and intermediate precision were both estimated to be ≤7% relative standard deviation (% RSD). This method is applicable for a wide range of traditional moist smokeless and OTDN tobacco products.
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Affiliation(s)
- Fadi Aldeek
- Altria Client Services LLC, 601 East Jackson Street, Richmond, Virginia 23219, United States
| | - Vanessa Lopez
- Altria Client Services LLC, 601 East Jackson Street, Richmond, Virginia 23219, United States
| | - John H. Miller
- Altria Client Services LLC, 601 East Jackson Street, Richmond, Virginia 23219, United States
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Jin S, Pang W, Zhao L, Zhao Z, Mei S. Review of HPLC-MS methods for the analysis of nicotine and its active metabolite cotinine in various biological matrices. Biomed Chromatogr 2022; 36:e5351. [PMID: 35106788 DOI: 10.1002/bmc.5351] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 11/23/2021] [Accepted: 12/20/2021] [Indexed: 11/11/2022]
Abstract
In recent years, tobacco smoking is a risk factor for a series of diseases including cardiovascular diseases, cerebrovascular diseases, and cancers. Nicotine, the primary component of tobacco smoke, is mainly transformed to its active metabolite cotinine, which is often used as biomarker for tobacco exposure for its higher blood concentration and longer residence time than nicotine. Various analytical methods have been developed for the determination of nicotine and cotinine in biological matrices. This article reviewed the HPLC-MS based methods for nicotine and/or cotinine analysis in various biological matrices. The sample preparation, mass and chromatographic conditions and method validation results of these methods have been summarized and analyzed. Sample was mainly pretreated by protein precipitation and/or extraction. Separation was achieved using methanol and/or acetonitrile:water (with or without ammonium acetate) on C18 columns, and acetonitrile:water (with formic acid, ammonium acetate/formate) on HILIC columns. Nicotine-d3, nicotine-d4 and cotinine-d3 were commonly used internal standards. Other non-deuterated IS were also used such as ritonavir, N-ethylnorcotinine, and milrinone. For both nicotine and cotinine, the calibration range was 0.005-35000 ng/mL, the matrix effect was 75.96% - 126.8% and the recovery was 53% - 124.5%. The two analytes were stable at room temperature for 1-10 days, at -80 °C for up to 6 months, and after 3-6 freeze-thaw cycles. Comedications did not affect nicotine and cotinine analysis.
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Affiliation(s)
- Siyao Jin
- Clinical Research Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, P. R. China.,Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, P. R. China
| | - Wenyuan Pang
- Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, P. R. China.,Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, P. R. China
| | - Libo Zhao
- Clinical Research Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, P. R. China.,Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, P. R. China
| | - Zhigang Zhao
- Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, P. R. China
| | - Shenghui Mei
- Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, P. R. China
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Liu Y, Zhang D, Du J, Qin Y, Zhao Z, Shi Y, Mei S, Liu Y. Simultaneous determination of plasma nicotine and cotinine by UHPLC–MS/MS in C57BL/6 mice and its application in a pharmacokinetic study. Biomed Chromatogr 2019; 33:e4634. [PMID: 31257625 DOI: 10.1002/bmc.4634] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/20/2019] [Accepted: 06/26/2019] [Indexed: 01/27/2023]
Affiliation(s)
- Yang Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function ReconstructionSchool of Stomatology, Capital Medical University 4 Tiantanxili Beijing P. R. China
| | - Dongjie Zhang
- Department of Pharmacy, Beijing Tiantan HospitalCapital Medical University 119 Nansihuan West Road, Fengtai District Beijing P. R. China
| | - Juan Du
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function ReconstructionSchool of Stomatology, Capital Medical University 4 Tiantanxili Beijing P. R. China
| | - Ying Qin
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function ReconstructionSchool of Stomatology, Capital Medical University 4 Tiantanxili Beijing P. R. China
| | - Zhigang Zhao
- Department of Pharmacy, Beijing Tiantan HospitalCapital Medical University 119 Nansihuan West Road, Fengtai District Beijing P. R. China
- Department of Clinical Pharmacology, College of Pharmaceutical SciencesCapital Medical University Beijing P. R. China
| | - Yanjun Shi
- Department of Clinical Pharmacology, College of Pharmaceutical SciencesCapital Medical University Beijing P. R. China
- Department of Pharmacy, Beijing Tongren HospitalCapital Medical University Beijing P. R. China
| | - Shenghui Mei
- Department of Pharmacy, Beijing Tiantan HospitalCapital Medical University 119 Nansihuan West Road, Fengtai District Beijing P. R. China
- Department of Clinical Pharmacology, College of Pharmaceutical SciencesCapital Medical University Beijing P. R. China
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function ReconstructionSchool of Stomatology, Capital Medical University 4 Tiantanxili Beijing P. R. China
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Xu Y, Zhang Q, Li P, Hong G, Wang D, Liu J, Zhou H, Chai G, Lu B, He S, Zhang W, Sun S, Zhang J, Mao J. Nicotine Pharmacokinetics in Rat Brain and Blood by Simultaneous Microdialysis, Stable-Isotope Labeling, and UHPLC–HRMS: Determination of Nicotine Metabolites. Anal Chem 2019; 91:2916-2922. [DOI: 10.1021/acs.analchem.8b05078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yan Xu
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Qidong Zhang
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Peng Li
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Guangfeng Hong
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Dingzhong Wang
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Junhui Liu
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Hao Zhou
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, China
| | - Guobi Chai
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Binbin Lu
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Shengbao He
- China National Tobacco Quality Supervision and Test Center, Zhengzhou 450001, China
| | - Wenjuan Zhang
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Shihao Sun
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Jianxun Zhang
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
| | - Jian Mao
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, China
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Tabani H, Nojavan S, Alexovič M, Sabo J. Recent developments in green membrane-based extraction techniques for pharmaceutical and biomedical analysis. J Pharm Biomed Anal 2018; 160:244-267. [DOI: 10.1016/j.jpba.2018.08.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/01/2018] [Accepted: 08/03/2018] [Indexed: 01/11/2023]
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Analysis of monofluoroacetic acid in urine by liquid chromatography-triple quadrupole mass spectrometry and preparation of the positive sample by the bioconversion from monofluoroacetamide to monofluoroacetic acid in vitro. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1027:131-8. [DOI: 10.1016/j.jchromb.2016.05.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 05/13/2016] [Accepted: 05/16/2016] [Indexed: 11/24/2022]
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Chawla G, Ranjan C. Principle, Instrumentation, and Applications of UPLC: A Novel Technique of Liquid Chromatography. ACTA ACUST UNITED AC 2016. [DOI: 10.2174/1874842201603010001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The key focus of the pharmaceutical or chemical industries is to reduce the cost involved in the development of new drugs and to improve the selectivity, sensitivity, and resolution for their detection. The purpose can now be solved by the separation method called UPLC which is the modified HPLC method comprising high pressure and small sized particles (less than 2 µm) used in the column, so the length of the column decreases leading to time saving and reduction in the consumption of solvent. The underlying principle of UPLC is based on van Deemter statement which describes the connection between linear velocity with plate height. UPLC contributes to the improvement of the three areas: speed, resolution, and sensitivity. This is a new advanced category of the HPLC which has the same basic principle and methodology with improved chromatographic performance. This review is an effort to compile the principle, instrumentation, and applications of UPLC.
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