1
|
Zhang S, Wang Q, Ning J, Wang W. Nucleic acid strand displacement for indirect determination of foodborne bacteria by capillary electrophoresis and its application in antagonism and bacteriostasis studies. Electrophoresis 2024; 45:318-326. [PMID: 37824215 DOI: 10.1002/elps.202300155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/20/2023] [Accepted: 10/05/2023] [Indexed: 10/14/2023]
Abstract
Foodborne bacteria threaten human's health. Capillary electrophoresis (CE) is a powerful separation means for the determination of bacteria. Direct separation of bacteria suffers from the shortages of low resolution, channel adsorption, and bacterial aggregation. In this work, a method of nucleic acid strand displacement was developed to indirect separate the bacteria by CE. DNA complexes, consisting of probes and aptamers, were mixed with the three bacteria Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. The aptamers could specifically bond with bacteria and release the probes. Through the separation of the probes, the bacteria could be indirectly determined by CE. This method avoided the shortages of direct separation of bacteria. Under the optimized conditions, the three probes for the bacteria could be separated and detected within 2.5 min by high-speed CE with laser-induced fluorescence detection. The limits of detection for the bacteria were in the range 4.20 × 106 to 1.75 × 107 CFU/mL. Finally, the developed method was applied on the study of antagonism of the coexistent bacteria to reveal the relationship between them. Furthermore, the efficiency of bacteriostasis of three traditional Chinese medicines, Coptis chinensis, Schisandra chinensis, and honeysuckle, was also studied by this method.
Collapse
Affiliation(s)
- Shaoyan Zhang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, and Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, School of Chemistry, Fuzhou University, Fuzhou, P. R. China
| | - Qingqing Wang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, and Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, School of Chemistry, Fuzhou University, Fuzhou, P. R. China
| | - Jinfeng Ning
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, and Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, School of Chemistry, Fuzhou University, Fuzhou, P. R. China
| | - Wei Wang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, and Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, School of Chemistry, Fuzhou University, Fuzhou, P. R. China
| |
Collapse
|
2
|
Zayed S, Belal F. Determination of ticagrelol in rat plasma and tablets by micellar electrokinetic chromatography coupled with large volume sample stacking: Application to a pharmacokinetic study. J Sep Sci 2023; 46:e2300454. [PMID: 37697638 DOI: 10.1002/jssc.202300454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/13/2023]
Abstract
A method using micellar electrokinetic chromatography coupled with large-volume sample stacking for the determination of ticagrelol was developed and validated. The analysis was performed in a fused silica capillary (41.5 cm effective length, 50 μm diameter) with ultraviolet detection at 195 nm. The background electrolytes were 30 mM phosphate buffer of pH 3.0 with 120 mM sodium dodecylsulfate and 10 % (v/v) acetonitrile (120 s X 50 mbar; 20°C; -18 kV) and 30 mM borate buffer of pH 8.5 with 75 mM sodium dodecylsulfate (120 s X 50 mbar; 20°C; 25 kV); under acidic and alkaline conditions, respectively. The method was found to be reliable with respect to specificity, linearity of the calibration line (R2 > 0.99), repeatability (relative standard deviation 2.56%-3.34%), and accuracy (recovery in the range 101.21%-102.67%). The limits of detection and quantitation were 0.032, 0.071, and 0.087, 0.188 μg/mL, respectively. The method was successfully applied for the determination of ticagrelol concentrations in rat plasma and tablets with good recoveries and reproducibility. The presented method proved to be suitable for monitoring ticagrelor in rat plasma.
Collapse
Affiliation(s)
- Sahar Zayed
- Unit of Drug Analysis, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
- Emergency Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Fathalla Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| |
Collapse
|
3
|
Zhang Y, Nsanzamahoro S, Wang CB, Wang WF, Yang JL. Screening of prolyl hydroxylase 2 inhibitors based on quantitative strategy of peptides. J Chromatogr A 2022; 1679:463411. [PMID: 35973337 DOI: 10.1016/j.chroma.2022.463411] [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: 06/08/2022] [Revised: 07/29/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022]
Abstract
Prolyl hydroxylase 2 (PHD2) is a key oxygen receptor regulating oxygen homeostasis in human body, and it is one of the important targets for drug research and development of hypoxia related diseases. In PHD2 enzymatic reaction, the structure of substrate (HIF-1α556-574) and product (hydroxylated HIF-1α) peptide only differ from one oxygen atom (MW>2000), which makes it a great challenge to separate them accurately and efficiently. In this work, the direct separation and detection of HIF-1α and hydroxylated HIF-1α has been firstly reported based on micellar electrokinetic chromatography (MEKC). Under optimized conditions, the intraday RSD of peak area and apparent electrophoretic mobility of hydroxylated HIF-1α were 1.87% and 0.81% respectively, and the interday RSD were 2.01% and 1.03% respectively. The LOD and LOQ of the MEKC method were 10 µM and 50 µM respectively, and the recoveries was 98.42-105.38%. Subsequently, the feasibility and accuracy of MEKC method to screen PHD2 inhibitors were confirmed by using roxadustat, and the IC50 (10.36 µM) and inhibitor type (competitive) were consistent with literature. Finally, the method was used to screen the PHD2 inhibitory activity of five traditional Chinese medicines (TCMs). The present work not only overcomes the difficulties of direct quantitative detection of hydroxylated HIF-1α, but also provides technical support for exploring and discovering new drug leads for hypoxia-related diseases from complex matrix such as TCMs.
Collapse
Affiliation(s)
- Ying Zhang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Stanislas Nsanzamahoro
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Cheng-Bo Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - Wei-Feng Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China.
| | - Jun-Li Yang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, China.
| |
Collapse
|
4
|
Wang W, Zhang H, Yu X, Zhang S. Study of antagonism between some intestinal bacteria with high-speed micellar electrokinetic chromatography. Electrophoresis 2021; 42:1196-1201. [PMID: 33580526 DOI: 10.1002/elps.202000372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/24/2021] [Accepted: 02/04/2021] [Indexed: 12/20/2022]
Abstract
In this work, high-speed micellar electrokinetic chromatography with LIF detection was applied to study the antagonism between three intestinal bacteria, Escherichia coli (E. coli), Bacillus licheniformis (B. licheniformis) and Bacillus subtilis (B. subtilis). The fluorescent derivatization for the bacteria was performed by labeling the bacteria with FITC. In a high-speed capillary electrophoresis (HSCE) device, the three bacteria could be completely separated within 4 min under the separation mode MEKC. The BGE was 1 × TBE containing 30 mM SDS and 1.5 × 10-5 g/mL polyethylene oxide. The limits of detection for E. coli, B. licheniformis and B. subtilis were 2.80 × 106 CFU/mL, 1.60 × 106 CFU/mL and 1.90 × 106 CFU/mL respectively. Lastly, the method was applied to investigate the antagonism between the three bacteria. The bacteria were mixed and cultured for 7 days. The samples were separated and determined every day to study the interaction between bacteria. The results showed that B. licheniformis and B. subtilis could not inhibit each other, but they could effectively inhibit the reproduction of E. coli. The method developed in this work was quick, sensitive and convenient, and it had great potential in the application of antagonism study for bacteria.
Collapse
Affiliation(s)
- Wei Wang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, School of Chemistry, Fuzhou University, Fuzhou, P. R. China
| | - Huimin Zhang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, School of Chemistry, Fuzhou University, Fuzhou, P. R. China
| | - Xiufeng Yu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, School of Chemistry, Fuzhou University, Fuzhou, P. R. China
| | - Shaoyan Zhang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, School of Chemistry, Fuzhou University, Fuzhou, P. R. China
| |
Collapse
|
5
|
Kartsova L, Makeeva D, Kravchenko A, Moskvichev D, Polikarpova D. Capillary electrophoresis as a powerful tool for the analyses of bacterial samples. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116110] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
6
|
Wang M, Guo J, Wang Z, Zhang G, Yu H, Chang R, Chen A. Simultaneous separation and determination of hirsutine and hirsuteine by cyclodextrin-modified micellar electrokinetic capillary chromatography. PHYTOCHEMICAL ANALYSIS : PCA 2020; 31:112-118. [PMID: 31328320 DOI: 10.1002/pca.2871] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 05/26/2019] [Accepted: 06/03/2019] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Hirsutine and hirsuteine are the main pharmacological activity ingredients of Uncaria rhynchophylla (UR), playing an important role in treating mental and cardiovascular diseases, such as Alzheimer's disease, hypertension, Parkinson's disease, potential anti-cancer activities and so on. OBJECTIVE To develop a cyclodextrin-modified micellar electrokinetic capillary chromatography (CD-MEKC) method for the simultaneous separation and determination of hirsutine and hirsuteine from UR and its formulations. METHODOLOGY The optimal method was developed by investigating influences of significant factors on the separation, and this method was successfully applied for the determination of hirsutine and hirsuteine in UR and its formulations. RESULTS The optimal background electrolyte (BGE) consisted of 40 mM sodium dihydrogen phosphate (pH 7.0), 150 mM 2,6-dimethyl-β-cyclodextrin (DM-β-CD), 3 mM mono-(6-ethylenediamine-6-deoxy)-β-cyclodextrin (ED-β-CD), and 30 mM sodium cholate (SC). Under these conditions, hirsutine and hirsuteine were successfully separated within 13 min at the separation voltage of 15 kV, temperature of 25°C and the detection wavelength of 224 nm. For the analytes, linear calibration curves were performed within the range 5.0-160.0 μg/mL. The limit of detection (LOD, S/N = 3) and the limit of quantitation (LOQ, S/N = 10) were 0.41, 1.42 μg/mL for hirsutine and 0.60, 2.17 μg/mL for hirsuteine, respectively. The recoveries of three samples were from 97.9% to 102.3%. CONCLUSION The method was successfully applied to the determination of hirsutine and hirsuteine in UR and its formulations. Meanwhile, it provides an effective reference of the quality control of UR and its formulations.
Collapse
Affiliation(s)
- Mengli Wang
- School of Pharmacy, Shanxi Medical University, Taiyuan, P. R. China
| | - Jing Guo
- School of Pharmacy, Shanxi Medical University, Taiyuan, P. R. China
| | - Zhiying Wang
- School of Pharmacy, Shanxi Medical University, Taiyuan, P. R. China
| | - Guangbin Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan, P. R. China
| | - Haixia Yu
- Translational Medicine Research Centre, Shanxi Medical University, Taiyuan, P. R. China
| | - Ruimiao Chang
- School of Pharmacy, Shanxi Medical University, Taiyuan, P. R. China
| | - Anjia Chen
- School of Pharmacy, Shanxi Medical University, Taiyuan, P. R. China
| |
Collapse
|
7
|
Kašička V. Recent developments in capillary and microchip electroseparations of peptides (2017–mid 2019). Electrophoresis 2019; 41:10-35. [DOI: 10.1002/elps.201900269] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/08/2019] [Accepted: 10/19/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Václav Kašička
- Institute of Organic Chemistry and BiochemistryCzech Academy of Sciences Prague 6 Czechia
| |
Collapse
|
8
|
Wang W, Bai R, Zhang H, Cai X. Study of the effect of culture mediums on the amino acid metabolites for
Corynebacterium glutamicum
using high‐speed micellar electrokinetic chromatography. Electrophoresis 2019; 40:2665-2671. [DOI: 10.1002/elps.201900010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Wei Wang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and BiologySchool of ChemistryFuzhou University Fuzhou P. R. China
| | - Ruiguang Bai
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and BiologySchool of ChemistryFuzhou University Fuzhou P. R. China
| | - Huimin Zhang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and BiologySchool of ChemistryFuzhou University Fuzhou P. R. China
| | - Xiaoyu Cai
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and BiologySchool of ChemistryFuzhou University Fuzhou P. R. China
| |
Collapse
|
9
|
Wang W, Cai X, Lin P, Bai R. Separation and determination of microRNAs by high-speed capillary sieving electrophoresis. J Sep Sci 2018; 41:3925-3931. [PMID: 30136382 DOI: 10.1002/jssc.201800635] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/10/2018] [Accepted: 08/10/2018] [Indexed: 12/12/2022]
Abstract
In this work, high-speed capillary sieving electrophoresis with laser-induced fluorescence detection was applied to simultaneously determine three microRNAs. A developed manual sample introduction device for the high-speed capillary electrophoresis system was applied to perform sample injection. Strategies, including field-amplified sample injection and electrokinetic injection, were studied to improve the detection sensitivity. Under the optimal conditions, the limit of detection for DNA-159 could be lowered to 5.10 × 10-12 mol/L. In order to achieve enough separation resolution, two DNA probes were designed to have extra sequences that acted as the drag tails. Under the optimized conditions, the three DNA probes and the complexes of microRNA-156, microRNA-159, and microRNA-166 could be completely separated within 3.2 min in background electrolyte (pH 8.7) containing 2.0% m/m polyvinyl pyrrolidone and 0.4% m/m hydroxyethyl cellulose. The limits of detection for the three microRNAs were 0.051, 0.11, and 0.25 nmol/L, respectively. Then the method was applied to analyze the microRNAs spiked in the samples extracted from banana leaves. The recoveries ranged from 114.3 to 121.1% (n = 3). The results showed that the method developed in this work was an effective means for microRNA assay.
Collapse
Affiliation(s)
- Wei Wang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, School of Chemistry, Fuzhou University, Fuzhou, Fujian, P. R. China
| | - Xiaoyu Cai
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, School of Chemistry, Fuzhou University, Fuzhou, Fujian, P. R. China
| | - Ping Lin
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, School of Chemistry, Fuzhou University, Fuzhou, Fujian, P. R. China
| | - Ruiguang Bai
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, School of Chemistry, Fuzhou University, Fuzhou, Fujian, P. R. China
| |
Collapse
|