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Xia YF, Yuan HQ, Qiao C, Li W, Wang R, Chen P, Li YX, Bao GM. Multifunctional Eu 3+-MOF for simultaneous quantification of malachite green and leuco-malachite green and efficient adsorption of malachite green. J Hazard Mater 2024; 465:133386. [PMID: 38160559 DOI: 10.1016/j.jhazmat.2023.133386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/08/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Multi-target detection combined with in-situ removal of contaminants is a challenging issue difficult to overcome. Herein, a dual-emissive Eu3+-metal organic framework (Eu3+-MOF) was constructed by pre-functionalization with a blue-emissive ligand and post-functionalization with red-emissive Eu3+ ions using a UiO-66 precursor. The fluorescence of the synthesized Eu3+-MOF is highly selective and sensitive toward malachite green (MG) and its metabolite leuco-malachite green (LMG), which are environmentally persistent and highly toxic to humans. The limit of detection of MG and LMG are 34.20 and 1.98 nM, respectively. Interestingly, the fluorescence of this Eu3+-MOF showed ratiometric but different responsive modes toward MG and LMG, which enabled the simultaneous quantification of MG and LMG. Furthermore, a paper-based sensor combined with the smartphone was fabricated, which facilitated not only the dual-channel detection of MG, but also its portable, visual, rapid, and intelligent determination. Furthermore, the high surface area of MOFs, together with the coordinate bonding interaction, π-π stacking, and electrostatic interaction sites, endows Eu3+-MOF with the efficient ability toward MG removal. This multifunctional Eu3+-MOF can be successfully used for trace detection, simultaneous determination of MG and LMG, as well as efficient removal of MG. Thus, it exhibits bright prospects for widespread applications in the field of food and environmental analysis.
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Affiliation(s)
- Yi-Fan Xia
- National "111″ Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Hou-Qun Yuan
- National "111″ Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China.
| | - Chen Qiao
- National "111″ Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Wei Li
- College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ran Wang
- National "111″ Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Peiyao Chen
- National "111″ Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Yan-Xia Li
- College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, China
| | - Guang-Ming Bao
- National "111″ Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China.
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Lobo CL, M M, Shetty A, S A, K P, Dubey A. Simultaneous quantification of 4-hydroxytamoxifen and hesperidin in liposomal formulations: Development and validation of a RP-HPLC method. Heliyon 2024; 10:e25598. [PMID: 38434076 PMCID: PMC10906183 DOI: 10.1016/j.heliyon.2024.e25598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 03/05/2024] Open
Abstract
Breast cancer treatment options are diverse, with tamoxifen commonly used as a selective estrogen receptor modulator (SERM) for hormone receptor-positive breast cancer. However, tamoxifen can have adverse systemic effects. Local transdermal therapy offers a potential solution by delivering the drug directly to the breast and minimizing systemic exposure. Hesperidin, a flavonoid, exerts synergistic effects when combined with anticancer agents. This combination therapy may be a more effective approach to breast cancer management. Analytical methods have been developed to quantify 4-Hydroxytamoxifen (4-HT) and hesperidin separately; however, no method currently exists for their simultaneous quantification in pharmaceutical formulations. This study aimed to develop and validate a reverse-phase high-performance liquid chromatography (RP-HPLC) method for the simultaneous quantification of 4-HT and hesperidin in liposomal formulations. A Design of Experiments (DoE) approach was employed using a Box-Behnken design (BBD) to optimize the RP-HPLC method. BBD allowed for a reduction in the number of required tests by creating a statistical model to estimate the significance of various factors and interactions. The methanol concentration, flow rate, and injection volume were considered as independent variables for optimization. A mobile phase (90:10 ratio of methanol: 0.1% v/v orthophosphoric acid) with a flow rate of 0.4 mL/min, and an injection volume of 10 μL was selected as optimized chromatographic condition. 4-HT showed a retention time (Rt) of 5.05 min and hesperidin showed an Rt of 7.11 min using an optimized analytical method and was detected at 275 nm. The developed RP-HPLC method was validated according to the International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use (ICH) guidelines, confirming its accuracy, precision, linearity, selectivity, and robustness. The validated method was then successfully applied to determine the entrapment efficiency and permeation of 4-HT and hesperidin into loaded liposomes. This study fills a gap in the literature by providing a simple and reliable RP-HPLC method for the simultaneous quantification of 4-HT and hesperidin in liposomal formulations.
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Affiliation(s)
- Cynthia Lizzie Lobo
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangaluru, India
| | - Manohar M
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangaluru, India
| | - Amitha Shetty
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangaluru, India
| | - Ananya S
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangaluru, India
| | - Pallavi K
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangaluru, India
| | - Akhilesh Dubey
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangaluru, India
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Tatapudi KK, Bandi S, Nagendla NK, Solipeta DR, Mudiam MKR, Katragadda SB. Chemical profiling and simultaneous quantification of major bioactive constituents from Cocculus hirsutus by UPLC-QqQ-MS. J Pharm Biomed Anal 2023; 235:115675. [PMID: 37633166 DOI: 10.1016/j.jpba.2023.115675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/28/2023]
Abstract
Cocculus hirsutus is a widely used herb in traditional systems of medicine for the treatment of various diseases. In the present study, five alkaloids (1-5), two flavonoids (6-7), one triterpenoid (8), and three steroids (9-10) were isolated from the roots of Cocculus hirsutus and further crude extract was analyzed by LC-Q-Tof-MS/MS in positive ionization mode leading to the identification of ten metabolites through comparison of exact molecular masses from their MS/MS spectra, mass fragmentation studies and with literature data. In addition, a method was developed and validated for the quantification of four bio-active compounds [Sinococuline (1), Magnoflorine (2), (E)-N-feruloyltyramine (3), and 20-Hydroxyecdysone (10)] using UPLC-QqQ-MS in multiple reaction monitoring (MRM) mode for the first time. The method has shown good linearity with correlation coefficients (r2) higher than 0.9916 for all four compounds. The intra- and inter-day precision were in the range of 0.3-6.1% and from 0.7% to 8.8%, respectively. The matrix effects of all the four analytes were found in the range of 94.7 ± 2.8-112.7 ± 3.7%. Overall, our study provides a reliable and rapid approach by hyphenated LC-MS/MS using high-resolution mass spectrometers for identification and quantification of bioactive constituents from the root extracts of Cocculus hirsutus.
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Affiliation(s)
- Kiran Kumar Tatapudi
- Department of Natural Products & Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Siva Bandi
- Department of Natural Products & Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500 007, India.
| | - Narendra Kumar Nagendla
- Department of Analytical and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500 007, India
| | - Divya Reddy Solipeta
- Department of Natural Products & Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500 007, India
| | - Mohana Krishna Reddy Mudiam
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; Department of Analytical and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500 007, India
| | - Suresh Babu Katragadda
- Department of Natural Products & Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Mhaske DK, Kumbhar AS. The first RP-UHPLC method for simultaneous quantification of abiraterone acetate, its four degradants, and six specified process impurities and correct identification of all analytes based on molecular weight. J Pharm Biomed Anal 2023; 234:115568. [PMID: 37453147 DOI: 10.1016/j.jpba.2023.115568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/02/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023]
Abstract
This article describes the first simple, fast, time-saving, and cost-effective UHPLC method that was developed and validated for simultaneous quantification of abiraterone acetate, its four degradation products, and six specified process impurities in bulk and tablet form. Moreover, when coupled with a mass spectrometer detector, the proposed method provides additional advantages for confirmation of peak and correct identification based on molecular weight. The eleven peaks were separated on a Water Acquity BEH C18, (150 mm length, 2.1 mm internal diameter, 1.7 µm particle size) column maintained at a 50.0 °C temperature. Using 0.05% formic acid in 10 mM ammonium formate, acetonitrile, and methanol as mobile phases in gradient elution at a flow rate of 0.40 mL/min. provides excellent separation at 260 nm. The linearity curves of all analytes showed promising results with a correlation coefficient of 0.999 with a lower limit of detection and quantification. A forced degradation study on solid abiraterone acetate proved its specificity with improvements and significance. This proposed method provides improved separation with a lower flow rate, which offers faster analysis, reduces wastage and cost, and specifies the greener advantages compared to reported methods. The outcome of the specificity, linearity, precision, and trueness as per ICH guidelines proved that the proposed method is fast, time-saving, and cost-effective for the intended purpose.
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Affiliation(s)
- Deepak Krishna Mhaske
- Department of Chemistry, Vivekanand College, (Affiliated to Shivaji University, Kolhapur) Kolhapur (Autonomous), 416 003 Maharashtra, India
| | - Arjun Shankar Kumbhar
- Department of Chemistry, Vivekanand College, (Affiliated to Shivaji University, Kolhapur) Kolhapur (Autonomous), 416 003 Maharashtra, India.
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Yang M, Liu Z, Zhang J, Zhu X, Xie W, Lan H, Huang Y, Ye X, Yang J. Simultaneous quantification of cellulose and pectin in tobacco using a robust solid-state NMR method. Carbohydr Res 2022; 521:108676. [PMID: 36126413 DOI: 10.1016/j.carres.2022.108676] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 09/03/2022] [Accepted: 09/05/2022] [Indexed: 11/30/2022]
Abstract
Cellulose and pectin are the important components of tobacco (Nicotiana tabacum L.) cell wall, which affect the formation of undesirable compounds. Their contents are closely related to the harmfulness of tobacco. But the simultaneous quantitative analysis of cellulose and pectin is hard to be achieved for traditional analytical methods. A solid-state 13C cross-polarization by multiple contact periods (multiCP) NMR method was developed for the simultaneous quantification of cellulose and pectin in tobacco. The multiCP spectrum at optimal parameters agreed well with the direct polarization (DP) spectrum within one-thirtieth of the measurement time and provided satisfactory signal to noise ratio (SNR). After three simple procedures of sample preparation and spectra deconvolution, simultaneous quantification of cellulose and pectin extracted from tobacco was effectively achieved. Compared with the chemical method, this interesting method was rapid, practicable, and very promising, which provided the technical support for the simultaneous quantification of cell wall substances in biological sample.
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Affiliation(s)
- Mingyu Yang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, People's Republic of China
| | - Zechun Liu
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China.
| | - Jianping Zhang
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China
| | - Xiaolan Zhu
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, People's Republic of China
| | - Wei Xie
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China
| | - Hongqiao Lan
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China
| | - Yanjun Huang
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China
| | - Xin Ye
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, People's Republic of China
| | - Jun Yang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, People's Republic of China.
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Chen L, Zhu S, Wang C, Chen L. Development of a HPLC-UV Method for the Separation and Quantification of Hesperidin, Neohesperidin, Neohesperidin Dihydrochalcone and Hesperetin. Nat Prod Res 2022; 37:1714-1718. [PMID: 35915890 DOI: 10.1080/14786419.2022.2104275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
An analysis method was developed for the separation and quantification of hesperidin, neohesperidin, neohesperidin dihydrochalcone and hesperetin by using HPLC-UV. Single factor experiments and Box-Behnken Designs were used to optimize separation of four flavonoids, in which a gradient elution method was adopted with 99% acetonitrile and 0.1% formic acid as mobile phases at a flow rate of 0.9 mL/min. A C18 column was used with a column temperature of 35 °C. LODs and LOQs were below 0.84 µg/mL and 2.84 µg/mL, respectively. Linearity with good correlation coefficients (r > 0.99, n = 5) was attained, recovery rate of four flavonoids ranged from 88% to 130%, the RSD indicating results precision for analyzing hesperidin, neohesperidin, neohesperidin dihydrochalcone and hesperetin ranged from 1.2% to 4.6%. Finally, the present method could be successfully applied to identify and quantify hesperidin, neohesperidin and hesperetin in Fructus Aurantii Immaturus and Pericarpium Citri Reticulatae.
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Affiliation(s)
- Lin Chen
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou, P. R. China.,Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, P. R. China
| | - Siming Zhu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou, P. R. China.,Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, P. R. China.,Key Laboratory of Biological Resources and Ecology of Pamirs Plateau in Xinjiang Uygur Autonomous Region, Kashi University, Kashi, Xinjiang, P. R. China
| | - Chunqing Wang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, South China University of Technology, Guangzhou, P. R. China.,Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, P. R. China
| | - Liang Chen
- Shandong Benyue Biological Technology Co., Ltd, Shandong, P. R. China
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Liu J, Peng L, Wang Q, Wang XD, Tang H. Simultaneous quantification of 70 elements in biofluids within 5 min using inductively coupled plasma mass spectrometry to reveal elementomic phenotypes of healthy Chinese adults. Talanta 2022; 250:123720. [PMID: 35853289 DOI: 10.1016/j.talanta.2022.123720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 11/15/2022]
Abstract
High-throughput quantification of the composition of all chemical elements (elementome) in biological samples is essential for understanding their diverse functions in large cohort studies. We, here, established an ICP-MS method to simultaneously quantify 70 elements in 50 μL biofluids within 5 min. This validated method had excellent quantification linearity (R2 > 0.998), sensitivity (with LOD as low as 1.0 ng/L), precision (CV<15%), accuracy (|RE|<20% except Hg), recovery (80-120%), throughput and coverage with minute samples. The method also showed good applicability to multiple biofluids including human serum, plasma, urine and goat serum samples. By using this method, we furture measured 70 elements in blood plasma samples from 758 Chinese adult participants and established the first reference intervals for the concentration of these elements from 127 healthy adults in this population. This offers a high-throughput quantitative elementomics method to define population elementomic phenotypes and for investigating the diverse biological functions of many elements in multiple biological matrices.
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Affiliation(s)
- Jiahui Liu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Metabonomics and Systems Biology Laboratory at Shanghai International Centre for Molecular Phenomics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Lan Peng
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Metabonomics and Systems Biology Laboratory at Shanghai International Centre for Molecular Phenomics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Qi Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Metabonomics and Systems Biology Laboratory at Shanghai International Centre for Molecular Phenomics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Xu-Dong Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Metabonomics and Systems Biology Laboratory at Shanghai International Centre for Molecular Phenomics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
| | - Huiru Tang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Metabonomics and Systems Biology Laboratory at Shanghai International Centre for Molecular Phenomics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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Chen S, Zhao J, Sakharov IY, Xu J, Xu C, Zhao S. An ultrasensitive multivariate signal amplification strategy based on microchip platform tailored for simultaneous quantification of multiple microRNAs in single cell. Biosens Bioelectron 2022; 203:114053. [PMID: 35121443 DOI: 10.1016/j.bios.2022.114053] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 01/27/2022] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRNAs) play a very important regulatory role in life activities. Abnormal expression levels of miRNAs in cells are associated with various diseases, especially human cancer. Nevertheless, accurate detection of the copy numbers of various miRNA molecules in single cell is still a great challenge. In this study, an intracellular multivariate signal amplification strategy based on microchip platform was proposed, and an ultrasensitive single-cell analysis method was established for simultaneous quantification of absolute copy numbers of multiple miRNAs in a single cell. Using miRNA-21 and miRNA-141 as the analytical models of miRNAs, the detection limits of 1.0 and 2.0 fM were obtained. Based on the developed method, an analysis of 600 randomly acquired different types of cells was performed. The distribution of absolute copy numbers of miRNA-21 and miRNA-141 in six types of cells was obtained. It was found that the number of copies of miRNA-21 and miRNA-141 in different types of cancer cells showed different expression characteristics. The study results can help us more accurately understand cell-to-cell heterogeneity and the relationship between different miRNAs and different types of cancer at the single cell level.
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Affiliation(s)
- Shengyu Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, China
| | - Jingjin Zhao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, China.
| | - Ivan Yu Sakharov
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Jiayao Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, China
| | - Chunhuan Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, China
| | - Shulin Zhao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, China.
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Long Z, Wei C, Dong X, Li X, Yang H, Deng H, Ma X, Yin S, Qi Y, Bo T. Simultaneous quantification of spike and nucleocapsid protein in inactivated COVID-19 vaccine bulk by liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1181:122884. [PMID: 34411991 DOI: 10.1016/j.jchromb.2021.122884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 12/22/2022]
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) vaccines are the most promising approach to control the COVID-19 pandemic. There are eminent needs to develop robust analytical methods to ensure quality control, as well as to evaluate the long-term efficacy and safety of vaccine. Although in vivo animal tests, such as serum-based ELISA, have been commonly used for quality control of vaccines, these methods have poor precision, are labor intensive, and require the availability of expensive, specific antibodies. Thus, there is growing interest to develop robust bioanalytical assays as alternatives for qualitative and quantitative evaluation of complex vaccine antigens. In this study, a liquid chromatography tandem mass spectrometry method was developed using optimized unique peptides for simultaneous determination of spike (S) and nucleocapsid (N) protein. Method sensitivity, linearity, repeatability, selectivity, and recovery were evaluated. The amount of S and N proteins in 9 batches of inactivated COVID-19 vaccines were quantified, and their compositions relative to total protein content were consistent. We believe this method can be applied for quality evaluation of other S and/or N protein based COVID-19 vaccine, and could be extended to other viral vector, and protein subunit-based vaccines.
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Karimvand SK, Abdollahi H. A new strategy for calibrating indicator displacement assay (IDA)-based sensor systems. Anal Chim Acta 2020; 1127:174-181. [PMID: 32800121 DOI: 10.1016/j.aca.2020.06.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/06/2020] [Accepted: 06/16/2020] [Indexed: 11/28/2022]
Abstract
A novel strategy for calibrating Indicator Displacement Assay (IDA)-based sensors is presented herein. The main idea is to replace the instrumental measurement responses by the equilibrium concentration of spectroscopically active species which can be obtained by the Classical Least Squares (CLS) method. Also, coupling the Indirect Hard Modelling (IHM) and CLS methods for the calibration model resulted in a reduction of matrix effects. According to Beer's law, the measured multivariate spectrum of a mixture is the sum of contributions of all spectroscopically active components via their concentrations and pure spectra. Concentrations of a few components are usually the fundamental variables in a measured spectrum in several sensors or wavelengths. In IDA systems, the equilibrium concentrations of indicator and indicator-receptor species are the fundamental variables that can be an alternative for instrumental responses as the input data for regression methods. These fundamental variables can be exploited from the recorded spectra of the mixtures when the pure spectra of the active species are known. Using dramatically reduced number of input variables without the need for any variable selection method is the main advantage of this idea over conventional calibration methods that use variable selected spectroscopic signals. This strategy can be applied for systems in which the active species are known. Accordingly, for IDA-based sensors with determined pure response to indicator and indicator-receptor complex, the free concentrations of active species can be resolved by the Classical Least Squares (CLS) method. The pure analytical responses are altered in mixtures due to the intermolecular interactions caused by matrix effect in real experimental dataset. So, the free concentrations of spectroscopically active species are not resolved correctly by the CLS method. To tackle the issue of nonlinearity of data due to the matrix effect, the Indirect Hard Modelling (IHM) can be applied to correctly resolve the fundamental variables. The applicability of the presented idea is successfully validated by simulated and real sensor array systems.
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Affiliation(s)
| | - Hamid Abdollahi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences, P.O. Box 45195-1159, Zanjan, Iran.
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Albe Slabi S, Mathé C, Framboisier X, Defaix C, Mesieres O, Galet O, Kapel R. A new SE-HPLC method for simultaneous quantification of proteins and main phenolic compounds from sunflower meal aqueous extracts. Anal Bioanal Chem 2019; 411:2089-2099. [PMID: 30810794 DOI: 10.1007/s00216-019-01635-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/16/2019] [Accepted: 01/21/2019] [Indexed: 12/22/2022]
Abstract
The aim of this research was to develop a method for simultaneous quantification of proteins and main polyphenolic compounds extracted from oleaginous meal by aqueous media. Size exclusion chromatography with a Biosep column (exclusion range from 1 to 300 kDa) and acetonitrile/water/formic acid (10:89.9:0.1 v/v) eluent at 0.6 mL min-1 yielded the most efficient separation of sunflower proteins and chlorogenic acid monoisomers (3-caffeoylquinic acid, 5-caffeoylquinic acid, and 4-caffeoylquinic acid). After a study of the stability of the extract components, the incorporation of a stabilization buffer (0.5 mol L-1 tris(hydroxymethyl)aminomethane-hydrochloric acid/1.0 mol L-1 sodium chloride at pH 7) was proposed to avoid polyphenol-protein interactions and/or isomeric transformation. The use of 214 nm as the wavelength for protein quantification was also included to minimize the effect of interference from polyphenol-protein interactions on the quantification. Under the used experimental conditions, the protein and chlorogenic acid monoisomer signals remained stable during 300 min at 20 °C (95-125% of the starting value). The developed method was validated and parameters such as specificity, sensitivity, precision, and accuracy were determined. The results from size exclusion chromatography correlated well with the results of protein determination by the reference Kjeldahl method. The proposed method was successfully applied for rapeseed extract analysis making simultaneous quantification of proteins and major rapeseed polyphenols (sinapine and sinapic acid) possible. Graphical abstract.
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Affiliation(s)
- Sara Albe Slabi
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000, Nancy, France
- Avril Group, 75008, Paris, France
| | - Christelle Mathé
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000, Nancy, France
| | - Xavier Framboisier
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000, Nancy, France
| | - Claire Defaix
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000, Nancy, France
- Avril Group, 75008, Paris, France
| | - Odile Mesieres
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000, Nancy, France
| | | | - Romain Kapel
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000, Nancy, France.
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12
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Seo CS, Yoo SR, Jeong SJ, Ha H. Quantification of the constituents of the traditional Korea medicine, Samryeongbaekchul-san, and assessment of its antiadipogenic effect. Saudi Pharm J 2019; 27:145-153. [PMID: 30662318 PMCID: PMC6323196 DOI: 10.1016/j.jsps.2018.09.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 09/10/2018] [Indexed: 12/05/2022] Open
Abstract
Samryeongbaekchul-san (SBS) is a traditional herbal formula, which is used for the treatment of dyspepsia, chronic gastritis, and anorexia in Korea. To evaluate the quality of SBS decoction by quantifying its main constituents simultaneously using high-performance liquid chromatography coupled with photodiode array (HPLC–PDA) detection, and secondly to determine the antiadipogenic effect of SBS decoction. The main constituents in a 10-μL injection volume of the decoction were separated on Gemini C18 and Luna NH2 columns (both 250 mm × 4.6 mm, 5 μm) at 40 °C using a gradient of two mobile phases eluting at 1.0 mL/min. 3T3-L1 preadipocytes were differentiated into adipocytes for 8 days with or without SBS. After differentiation, accumulated triglyceride contents and leptin production were measured. The correlation coefficients of all constituents in a calibration curve were ≥0.9998 and showed good linearity in the tested concentration range after validation of the method established. The recovery of the four major compounds were 99.46–102.61% with intra- and interday precisions of 0.08–1.01% and 0.15–0.99%, respectively. The four compounds in the lyophilized SBS sample were detected up to 6.46 mg/g. SBS treatment of the differentiated adipocytes significantly inhibited lipid accumulation and leptin production without cytotoxicity. Optimized simultaneous determination of constituents by HPLC–PDA detection will help to improve quality assessment of SBS or related formulas. SBS has an antiadipogenic effect and further investigation to establish the mechanisms of action of its antiadipogenic effect is warranted.
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Affiliation(s)
- Chang-Seob Seo
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Sae-Rom Yoo
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Soo-Jin Jeong
- Clinical Medicine Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Hyekyung Ha
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34054, Republic of Korea
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Zhang W, Zhang T, Chen Y. Simultaneous quantification of Cyt c interactions with HSP27 and Bcl-xL using molecularly imprinted polymers (MIPs) coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based targeted proteomics. J Proteomics 2018; 192:188-195. [PMID: 30237093 DOI: 10.1016/j.jprot.2018.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 08/21/2018] [Accepted: 09/05/2018] [Indexed: 01/03/2023]
Abstract
Cytochrome c (Cyt c) plays an important role in cell apoptosis. However, it could be functionally compromised by interaction with anti-apoptosis proteins, known as protein-protein interactions (PPIs). Among the proteins potentially interacting with Cyt c, both HSP27 and Bcl-xL serve as pivotal anti-apoptosis proteins. Because multiple PPIs, especially those involve the same protein, could affect each other, their simultaneous and quantitative detection is highly needed. In this study, a combined approach of molecularly imprinted polymers (MIPs) and LC-MS/MS-based targeted proteomics was developed for simultaneous quantification of Cyt c-HSP27 and Cyt c-Bcl-xL interactions. Surrogate peptides of Cyt c, HSP27 and Bcl-xL were first selected and used for the corresponding proteins quantification in targeted proteomics analysis. For MIPs, epitope approach was employed and a short peptide of Cyt c was selected as template for protein complexes recognition and enrichment. The characteristics of the synthesized MIPs including adsorption capacity, kinetics and efficiency were then evaluated. After validation, this combined assay was applied to quantitative analysis of total Cyt c including Cyt c in mitochondria and cytosol, total HSP27, total Bcl-xL and Cyt c-HSP27 and Cyt c-Bcl-xL protein complexes in breast cells. The result was also compared with that using Co-IP/Western Blotting. SIGNIFICANCE: Protein-protein interactions (PPIs) are essential for many cellular processes and the changes of PPIs are often associated with cellular dysfunction. More importantly, each protein typically has more than one interaction partner and multiple PPIs, especially those involve the same protein, could affect each other. The selectivity of these interactions determines the activities of proteins and further the developmental potential of the cell. Thus, simultaneous and quantitative detection of multiple PPIs is highly needed in biological research and related disciplines. However, it is still challenging to even qualitatively or semi-quantitatively analyze multiple PPIs because of the limitations of current experimental techniques for interaction detection. In this study, molecularly imprinted polymers (MIPs) epitope approach was combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) targeted proteomics for the simultaneous and quantitative detection of Cyt c-HSP27 and Cyt c-Bcl-xL interactions in breast cancer. Given high sensitivity, high selectivity and wide dynamic range of LC-MS/MS, MIPs approach was employed here to separate and enrich protein complexes prior to targeted proteomics analysis.
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Affiliation(s)
- Wen Zhang
- Nanjing Medical University, Nanjing 211166, China; Changzhou Maternal and Child Health Care Hospital, Changzhou 213003, China
| | - Tianqi Zhang
- Nanjing Medical University, Nanjing 211166, China
| | - Yun Chen
- Nanjing Medical University, Nanjing 211166, China; State Key Laboratory of Reproductive Medicine, 210029, China.
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14
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Nguyen TTT, Kim J, Jeon SJ, Lee CW, Magan N, Lee HB. Mycotoxin production of Alternaria strains isolated from Korean barley grains determined by LC-MS/MS. Int J Food Microbiol 2018; 268:44-52. [PMID: 29328967 DOI: 10.1016/j.ijfoodmicro.2018.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 12/28/2017] [Accepted: 01/02/2018] [Indexed: 11/27/2022]
Abstract
Twenty-four Alternaria strains were isolated from barley grain samples. These strains were screened for the production of mycotoxins on rice medium using thin layer chromatography. All 24 strains produced at least one of the five mycotoxins (ALT, AOH, ATX-I, AME, and TeA). Three representative strains, namely EML-BLDF1-4, EML-BLDF1-14, and EML-BLDF1-18, were further analyzed using a new LC-MS/MS-based mycotoxin quantification method. This method was used to detect and quantify Alternaria mycotoxins. We used positive ion electrospray mass spectrometry with multiple reaction mode (MRM) for the simultaneous quantification of various Alternaria mycotoxins produced by these strains. Five Alternaria toxins (ALT, ATX-I, AOH, AME, and TeA) were detected and quantified. Sample preparation included methanol extraction, concentration, and injection into LC-MS/MS. Limit of detection ranged from 0.13 to 4μg/mL and limit of quantification ranged from 0.25 to 8μg/mL.
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Affiliation(s)
- Thuong T T Nguyen
- Division of Food Technology, Biotechnology & Agrochemistry, College of Agriculture & Life Sciences, Chonnam National University, Gwangju 61186, South Korea
| | - Jueun Kim
- Department of Chemistry, Chonnam National University, Gwangju 61186, South Korea
| | - Sun Jeong Jeon
- Division of Food Technology, Biotechnology & Agrochemistry, College of Agriculture & Life Sciences, Chonnam National University, Gwangju 61186, South Korea
| | - Chul Won Lee
- Department of Chemistry, Chonnam National University, Gwangju 61186, South Korea
| | - Naresh Magan
- Applied Mycology Group, Cranfield University, Cranfield, Bedford MK43 0AL, UK
| | - Hyang Burm Lee
- Division of Food Technology, Biotechnology & Agrochemistry, College of Agriculture & Life Sciences, Chonnam National University, Gwangju 61186, South Korea.
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15
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Bayat M, Shemirani F, Ghasemi JB. Simultaneous determination of binary solution of triphenylmethane dyes in complex matrices onto magnetic amino-rich SWCNT using second-order calibration method. Environ Monit Assess 2017; 189:594. [PMID: 29086095 DOI: 10.1007/s10661-017-6325-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 10/20/2017] [Indexed: 06/07/2023]
Abstract
This study suggested a new method for simultaneous quantification of two dyes in complex matrices using second-order data by spectrophotometry. Second-order data was generated simply without any expensive instrument using two independent variables including wavelength and the monotonic addition of sodium dodecyl sulfate. Solid-phase extraction (SPE) based on amino-rich magnetic single-walled carbon nanotube as an adsorbent was employed prior to second-order data generation. SPE optimization was performed by Box-Behnken design, and parameters and their interaction which were dependent on the simultaneous extraction of dyes were examined. Competitive Langmuir and Freundlich isotherms for a binary system and individual dyes could all represent the equilibrium data well. The second-order data was processed by parallel factor analysis (PARAFAC and PARAFAC2) and multivariate curve resolution-alternating least squares (MCR-ALS). Figures of merit of the model including a limit of detection of 3.0 and 2.5 ng mL-1 for crystal violet and malachite green, respectively, were estimated using the MCR-ALS method. The combination of the second-order calibration and SPE presents an easy and versatile method for determination of the mixture of two dyes in the presence of uncalibrated interferences in environmental water, synthetic, and fish samples with the recoveries of 94-104.
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Affiliation(s)
- Mehrnoosh Bayat
- Department of Chemistry, Faculty of Sciences, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Farzaneh Shemirani
- Department of Chemistry, Faculty of Sciences, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Jahan B Ghasemi
- Department of Chemistry, Faculty of Sciences, University of Tehran, P.O. Box 14155-6455, Tehran, Iran.
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16
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Lin PP, Chen WL, Yuan F, Sheng L, Wu YJ, Zhang WW, Li GQ, Xu HR, Li XN. An UHPLC-MS/MS method for simultaneous quantification of human amyloid beta peptides Aβ1-38, Aβ1-40 and Aβ1-42 in cerebrospinal fluid using micro-elution solid phase extraction. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1070:82-91. [PMID: 29102244 DOI: 10.1016/j.jchromb.2017.10.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 10/17/2017] [Accepted: 10/20/2017] [Indexed: 01/31/2023]
Abstract
Amyloid beta (Aβ) peptides in cerebrospinal fluid are extensively estimated for identification of Alzheimer's disease (AD) as diagnostic biomarkers. Unfortunately, their pervasive application is hampered by interference from Aβ propensity of self-aggregation, nonspecifically bind to surfaces and matrix proteins, and by lack of quantitive standardization. Here we report on an alternative Ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for simultaneous measurement of human amyloid beta peptides Aβ1-38, Aβ1-40 and Aβ1-42 in cerebrospinal fluid (CSF) using micro-elution solid phase extraction (SPE). Samples were pre-processing by the mixed-mode micro-elution solid phase extraction and quantification was performed in the positive ion multiple reaction monitoring (MRM) mode using electrospray ionization. The stable-isotope labeled Aβ peptides 15N51- Aβ1-38, 15N53- Aβ1-40 and 15N55- Aβ1-42 peptides were used as internal standards. And the artificial cerebrospinal fluid (ACSF) containing 5% rat plasma was used as a surrogate matrix for calibration curves. The quality control (QC) samples at 0.25, 2 and 15ng/mL were prepared. A "linear" regression (1/x2 weighting): y=ax+b was used to fit the calibration curves over the concentration range of 0.1-20ng/mL for all three peptides. Coefficient of variation (CV) of intra-batch and inter-batch assays were all less than 6.44% for Aβ1-38, 6.75% for Aβ1-40 and 10.74% for Aβ1-42. The precision values for all QC samples of three analytes met the acceptance criteria. Extract recoveries of Aβ1-38, Aβ1-40 and Aβ1-42 were all greater than 70.78%, both in low and high QC samples. The stability assessments showed that QC samples at both low and high levels could be stable for at least 24h at 4°C, 4h at room temperature and through three freeze-thaw cycles without sacrificing accuracy or precision. And no significant carryover effect was observed. This validated UHPLC/MS/MS method was successfully applied to the quantitation of Aβ peptides in real human CSF samples. Our work may provide a reference method for simultaneous quantitation of human Aβ1-38, Aβ1-40 and Aβ1-42 from CSF.
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Affiliation(s)
- Ping-Ping Lin
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wei-Li Chen
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Fei Yuan
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Lei Sheng
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yu-Jia Wu
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Wei-Wei Zhang
- Shanghai AB Sciex Analytical Instrument Trading Co., Ltd, Shanghai 200335, China
| | - Guo-Qing Li
- Shanghai AB Sciex Analytical Instrument Trading Co., Ltd, Shanghai 200335, China
| | - Hong-Rong Xu
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
| | - Xue-Ning Li
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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17
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Fons-Castells J, Tent-Petrus J, Llauradó M. Simultaneous determination of specific alpha and beta emitters by LSC-PLS in water samples. J Environ Radioact 2017; 166:195-201. [PMID: 27156160 DOI: 10.1016/j.jenvrad.2016.04.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 04/19/2016] [Accepted: 04/25/2016] [Indexed: 06/05/2023]
Abstract
Liquid scintillation counting (LSC) is a commonly used technique for the determination of alpha and beta emitters. However, LSC has poor resolution and the continuous spectra for beta emitters hinder the simultaneous determination of several alpha and beta emitters from the same spectrum. In this paper, the feasibility of multivariate calibration by partial least squares (PLS) models for the determination of several alpha (natU, 241Am and 226Ra) and beta emitters (40K, 60Co, 90Sr/90Y, 134Cs and 137Cs) in water samples is reported. A set of alpha and beta spectra from radionuclide calibration standards were used to construct three PLS models. Experimentally mixed radionuclides and intercomparision materials were used to validate the models. The results had a maximum relative bias of 25% when all the radionuclides in the sample were included in the calibration set; otherwise the relative bias was over 100% for some radionuclides. The results obtained show that LSC-PLS is a useful approach for the simultaneous determination of alpha and beta emitters in multi-radionuclide samples. However, to obtain useful results, it is important to include all the radionuclides expected in the studied scenario in the calibration set.
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Affiliation(s)
- J Fons-Castells
- Analytical Chemistry Department, University of Barcelona, Diagonal 647, 08028 Barcelona, Spain.
| | - J Tent-Petrus
- Analytical Chemistry Department, University of Barcelona, Diagonal 647, 08028 Barcelona, Spain
| | - M Llauradó
- Analytical Chemistry Department, University of Barcelona, Diagonal 647, 08028 Barcelona, Spain
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18
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Yoneyama T, Teshima K, Jinno F, Kondo T, Asahi S. A validated simultaneous quantification method for vonoprazan (TAK-438F) and its 4 metabolites in human plasma by the liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1015-1016:42-9. [PMID: 26896571 DOI: 10.1016/j.jchromb.2016.01.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 01/22/2016] [Accepted: 01/30/2016] [Indexed: 11/20/2022]
Abstract
Vonoprazan fumarate (TAK-438) is a potassium-competitive acid blocker which was approved in Japan for a treatment of acid-related diseases. In this study a simple and validated bioanalytical method, which can simultaneously determine vonoprazan (TAK-438F) and its four metabolites (M-I, M-II, M-III and M-IV-Sul) in human plasma, was developed. The method is based on protein precipitation and subsequent ultra-high performance liquid chromatography separation followed by tandem mass spectrometry detection. The mass spectrometric parameters for detection of TAK-438F, M-I, M-III and M-IV-Sul were modified from their optimum values in order to achieve a simultaneous quantification while retaining enough sensitivity and wide dynamic ranges for all the target analytes. The validity and robustness of the method was verified through a validation study as per the regulatory guidance on bioanalytical method validation. The calibration ranges are 0.1-100 ng/mL for TAK-438F and M-III, and 1-1000 ng/mL for M-I, M-II and M-IV-Sul using the 100 μL of human plasma. The total run time per sample is 5 min. The working solution for M-III was recommended to be prepared separately, especially for the long-term use, in order to avoid the instability of M-III in the mixed working solutions, which could cause the high consumption of reference standards. The established method was applied to clinical pharmacokinetic studies and concentrations of all the analytes in human plasma were successfully determined with high reproducibility ensured by incurred sample reanalysis, indicating the suitableness of the established method.
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Wang L, Zhu X, Lou X, Zheng F, Feng Y, Liu W, Feng F, Xie N. Systematic characterization and simultaneous quantification of the multiple components of Rhododendron dauricum based on high-performance liquid chromatography with quadrupole time-of-flight tandem mass spectrometry. J Sep Sci 2015; 38:3161-3169. [PMID: 26154189 DOI: 10.1002/jssc.201500553] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 06/24/2015] [Accepted: 06/25/2015] [Indexed: 11/06/2022]
Abstract
Rhododendron dauricum L. has been used as a traditional Chinese medicine to treat cough and asthma and relieve phlegm and bronchitis. In this study, a reliable method based on high-performance liquid chromatography with diode array detection and quadrupole time-of-flight tandem mass spectrometry was established to systematically identify and quantify the components in this herb for the first time. A total of 33 compounds were identified, including 24 flavonoids, six phenolic acids, two coumarins and one terpene. Among them, poriolin (17), farrerol-7-O-β-d-glucopyranoside (20), and syzalterin (30) were isolated from this plant for the first time, and quercetin-3-β-d-(6-p-hydroxy benzoyl) galactoside (19), quercetin-3-β-d-(6-p-coumaroyl) galactoside (21), and myrciacetin (23) were identified from this genus for the first time. Fragmentation pathways of flavonoids also have been investigated by electrospray ionization mass spectrometry. Moreover, seven bioactive constituents, namely, gallic acid (1), scopoletin (6), dihydroquercetin (7), quercetin (22), kaempferol (25), 8-desmethyl farrerol (27), and farrerol (28), were simultaneously quantified. The developed method has been validated and applied to analyze ten samples of R. dauricum from Hebei Province successfully. The contents of the seven compounds have been detected and compared.
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Affiliation(s)
- Lijuan Wang
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, China
| | - Xiaoyu Zhu
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, China
| | - Xinwei Lou
- Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing, China
| | - Feng Zheng
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, China
| | - Yichen Feng
- International Department of Jinling High School, Hexi Campus, Nanjing, China
| | - Wenyuan Liu
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, China
| | - Feng Feng
- Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing, China
| | - Ning Xie
- Jiangxi Qingfeng Pharmaceutical Corporation, Ganzhou, China
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20
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Luo H, Wu X, Huang H, Chen S, Yang W, Zhang L, Cui H, Yang J, Yang A. Simultaneous determination of triptolide, tripterifordin, celastrol and nine sesquiterpene alkaloids in Tripterygium preparations using high-performance liquid chromatography-triple quadrupole mass spectrometry. J Pharm Biomed Anal 2015; 117:195-204. [PMID: 26363489 DOI: 10.1016/j.jpba.2015.08.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 08/30/2015] [Accepted: 08/31/2015] [Indexed: 10/23/2022]
Abstract
Tripterygium wilfordii tablet (TWT) and Tripterygium hypoglaucum tablet (THT), the preparations of the two Tripterygium herbs, are well known for the treatment of rheumatoid arthritis and other related inflammatory diseases clinically. In the present study, a high performance liquid chromatography (HPLC) coupled with electrospray ionization (ESI) tandem triple quadrupole mass spectrometry (QQQ/MS) method was developed for simultaneous quantification of 12 chemical components in Tripterygium preparations. The fragmentation patterns of analytes using ESI and collision-induced dissociation (CID) techniques were reported. This assay method was validated with respect to linearity (r(2)>0.9991), precision, repeatability, and accuracy (recovery rate between 97.2 and 104.2%). The proposed method was successfully applied for simultaneous quantification of the 12 compounds in Tripterygium preparations from the different manufactures. In addition, to evaluate the quality of Tripterygium preparations, partial least square discrimination analysis (PLS-DA) was performed to differentiate the contents of 12 compounds. In conclusion, the established HPLC/QQQ/MS method was proven to be useful and efficient for quality control of Tripterygium preparations.
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Affiliation(s)
- Heng Luo
- Center of Instrumental Analysis, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Xia Wu
- Sichuan Key Laboratory of Quality and Innovation Research of Chinese Materia Medica, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Hao Huang
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau
| | - Shuiying Chen
- Funan Jinsha Community Health Service Center of Qingyang District, Chengdu 610072, PR China
| | - Wei Yang
- Sichuan Key Laboratory of Quality and Innovation Research of Chinese Materia Medica, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Lei Zhang
- Sichuan Key Laboratory of Quality and Innovation Research of Chinese Materia Medica, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Hongmei Cui
- Center of Instrumental Analysis, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Jun Yang
- Center of Instrumental Analysis, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China
| | - Andong Yang
- Center of Instrumental Analysis, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, PR China.
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21
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Gai Y, Chen H, Wu C, Feng F, Wang Y, Liu W, Wang S. Analysis of the traditional medicine YiGan San by the fragmentation patterns of cadambine indole alkaloids using HPLC coupled with high-resolution MS. J Sep Sci 2013; 36:3723-32. [PMID: 24106099 DOI: 10.1002/jssc.201300804] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 09/07/2013] [Accepted: 09/08/2013] [Indexed: 01/13/2023]
Abstract
YiGan San (YGS) has long been used in traditional Japanese and Chinese folk medicine and serves as a potent and novel therapeutic agent to treat Alzheimer's disease. In the present study, a rapid and sensitive method based on HPLC coupled with diode-array detection and quadrupole TOF MS (Q-TOF-MS) was designed to reveal the chemical constituents of YGS. Thirty-six compounds were identified and assigned in YGS, including 14 alkaloids, nine γ-lactones, six flavonoids, three triterpenoid saponinares, two small molecular organic acids, and two other types of compounds. In addition, the accurate fragment weight and MS/MS fragmentation reactions of a subtype indole alkaloid in Uncariae ramulus cum uncis were summarized for the first time to realize rapid identification without reference substances. For the first time, 11 major constituents were comprehensively quantified with a HPLC coupled with triple-quadrupole MS method. A three-section switch was used to realize such multicomponent identification. The contents of saikosaponin B2 and isoliquiritin, which produce anti-inflammatory and antidepressant-like effects, were extremely different, up to 700 times, in two sources of YGS. The developed qualitative and quantitative method was proved to be precise, accurate, and reproducible.
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Affiliation(s)
- YaNan Gai
- Department of Pharmaceutical Analysis, Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, China Pharmaceutical University, Tongjiaxiang, Nanjing, China
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