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Mansour FR, Abdallah IA, Bedair A, Hamed M. Analytical Methods for the Determination of Quercetin and Quercetin Glycosides in Pharmaceuticals and Biological Samples. Crit Rev Anal Chem 2023:1-26. [PMID: 37898879 DOI: 10.1080/10408347.2023.2269421] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Flavonoids are plant-derived compounds that have several health benefits, including antioxidative, anti-inflammatory, anti-mutagenic, and anti-carcinogenic effects. Quercetin is a flavonoid that is widely present in various fruits, vegetables, and drinks. Accurate determination of quercetin in different samples is of great importance for its potential health benefits. This review, is an overview of sample preparation and determination methods for quercetin in diverse matrices. Previous research on sample preparation and determination methods for quercetin are summarized, highlighting the advantages and disadvantages of each method and providing insights into recent developments in quercetin sample treatment. Various analytical techniques are discussed including spectroscopic, chromatographic, electrophoretic, and electrochemical methods for the determination of quercetin and its derivatives in different samples. UV-Vis (Ultraviolet-visible) spectrophotometry is simple and inexpensive but lacks selectivity. Chromatographic techniques (HPLC, GC) offer selectivity and sensitivity, while electrophoretic and electrochemical methods provide high resolution and low detection limits, respectively. The aim of this review is to comprehensively explore the determination methods for quercetin and quercetin glycosides in diverse matrices, with emphasis on pharmaceutical and biological samples. The review also provides a theoretical basis for method development and application for the analysis of quercetin and quercetin glycosides in real samples.
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Affiliation(s)
- Fotouh R Mansour
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt
| | - Inas A Abdallah
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City 32897, Monufia, Egypt
| | - Alaa Bedair
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City 32897, Monufia, Egypt
| | - Mahmoud Hamed
- School of Information Technology and Computer Science (ITCS), Nile University, Giza, Egypt
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2
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Zeng H, Peng H, He H, Feng J, Sun Y, He H, Li L. Green and Low-temperature Synthesis of Carbon Dots for Simple Detection of Kaempferol. J Fluoresc 2023; 33:1971-1979. [PMID: 36933122 DOI: 10.1007/s10895-023-03204-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/07/2023] [Indexed: 03/19/2023]
Abstract
As a common flavonols, kaempferol (Kae) has a broad market as health food and medicine for its anti-inflammatory, anti-oxidation, and anti-cancer properties. In this study, a novel convenient and simple fluorescent sensor based on carbon dots (CDs) for the detection of Kae was developed. The fluorescent CDs, with excellent photo-luminescence (PL) and up-conversion luminescence (UCPL) properties, were successfully prepared by low-temperature oil bath reaction based on ascorbic acid as carbon source at 90 °C in one pot. Under the optimal conditions, the fluorescence (FL) intensity of CDs was gradually quenched by the increasing addition of Kae with a linear relationship between F0/F and Kae concentration in a wide range from 5 µM to 100 µM with a detection limit of 0.38 µM. And this designed sensor was favourably applied for the detection of Kae in actual sample (xin-da-kang tablets). Moreover, the proposed CDs has great application prospects as a drug-sensor for detecting Kae due to its simple operation, economical and green materials, low equipment requirement, and rapid detection.
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Affiliation(s)
- Hongyan Zeng
- School of Materials and Chemical Engineering, Pingxiang University, 337055, Pingxiang, PR China.
| | - Huan Peng
- School of Materials and Chemical Engineering, Pingxiang University, 337055, Pingxiang, PR China
| | - Hongmei He
- School of Materials and Chemical Engineering, Pingxiang University, 337055, Pingxiang, PR China
| | - Jinrong Feng
- School of Materials and Chemical Engineering, Pingxiang University, 337055, Pingxiang, PR China
| | - Yiqiang Sun
- School of Materials and Chemical Engineering, Pingxiang University, 337055, Pingxiang, PR China
| | - Huanyu He
- School of Materials and Chemical Engineering, Pingxiang University, 337055, Pingxiang, PR China
| | - Li Li
- Department of Chemistry, College of Sciences, Shanghai University, 200444, Shanghai, PR China.
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3
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Wang J, Xu Q, Liu J, Kong W, Shi L. Electrostatic Self-Assembly of MXene on Ruthenium Dioxide-Modified Carbon Cloth for Electrochemical Detection of Kaempferol. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301709. [PMID: 37093500 DOI: 10.1002/smll.202301709] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/26/2023] [Indexed: 05/03/2023]
Abstract
A superior composite material consisting of MXene and ruthenium dioxide-modified carbon cloth is synthesized by pulsed laser deposition and electrostatic self-assembly, which is further utilized to construct a class of novel electrochemical (EC) sensors for kaempferol (KA) detection. The carbon-cloth-based electrodes modified by ruthenium dioxide and then MXene are characterized by X-ray diffraction, scanning electron microscope, and X-ray photoemission spectroscopy. The EC process on the modified electrodes is analyzed by cyclic voltammetry, EC impedance spectroscopy, and differential pulse voltammetry. It is found that positively charged RuO2 not only possesses the remarkable electrical conductivity and electrocatalysis activity but also hampers the restacking of MXene, which accordingly enhances the exposure of the active surface area and greatly boosts the electrocatalysis activity of the entire composite. Consequently, this newly developed composite-based EC sensor exhibits a high sensitivity, selectivity, and remarkable stability to detect KA with two linear ranges of 0.06-1 and 1-15 µM. The inferred limit of detection is 0.039 µM via differential pulse voltammetry. More importantly, this novel EC sensor is found to be applicable for detecting KA in practical traditional Chinese medicines.
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Affiliation(s)
- Jing Wang
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Engineering Research Center of Chinese Medicine Resource of Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, P. R. China
| | - Qingbin Xu
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Engineering Research Center of Chinese Medicine Resource of Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, P. R. China
| | - Jinxin Liu
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Engineering Research Center of Chinese Medicine Resource of Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, P. R. China
| | - Weijun Kong
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, P. R. China
| | - Linchun Shi
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Engineering Research Center of Chinese Medicine Resource of Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, P. R. China
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4
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Fan W, Cheng Y, Wang B, Wang L, Zhou Q, Liu Y, Wang C, Zheng L, Cao Q. Metal-Organic Framework with Near-Infrared Luminescence for "Switch-on" Determination of Kaempferol and Quercetin by the Antenna Effect. Inorg Chem 2022; 61:17185-17195. [PMID: 36263654 DOI: 10.1021/acs.inorgchem.2c02723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The establishment of a reliable and sensitive method for the detection of flavonoids, such as kaempferol (Kae) and quercetin (Que), is important and challenging in food chemistry and pharmacology because numerous structural analogues may interfere with the detection. Until now, designing an efficient switch-on fluorescence sensing strategy for Kae and Que was still in the unachievable stage. In this work, a switch-on near-infrared (NIR) luminescence sensing assay for Kae and Que was fabricated based on a metal-organic framework (MOF) called IQBA-Yb for the first time. The fluorescence enhancing mechanism was that analytes served as additional "antenna" of Yb3+, leading to the efficient switch-on NIR emission under excitation at 467 nm. Meanwhile, the combination results of experiment and theoretical calculation revealed that there existed hydrogen bonds between Kae, Que, and the MOF skeleton, further promoting the energy transfer between the analyte and Yb3+ and facilitating fluorescence enhancement response. The developed probe possessed excellent sensing capability for Kae and Que, accompanied by a wide linear range (0.04-70, 0.06-90 μM), low detection limit (0.01, 0.06 μM), and short response time (20 min, 6 min), which was used to determine the Kae and Que contents in Green Lake and eatable Que samples with satisfactory results.
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Affiliation(s)
- Wenwen Fan
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Yi Cheng
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Baoru Wang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Longjie Wang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Qian Zhou
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Yanxiong Liu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Chunqiong Wang
- Yunnan Tobacco Quality Supervision and Test Station, Kunming 650106, P. R. China
| | - Liyan Zheng
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Qiu'e Cao
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
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5
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Vinothkumar V, Sakthivel R, Chen SM, Kim TH. Facile design of wolframite type CoWO4 nanoparticles: A selective and simultaneous electrochemical detection of quercetin and rutin. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Sabbaghi N, Azizi-Khereshki N, Farsadrooh M, Elyasi Z, Javadian H, Sadeghi M, Shafiee-Kisomi A. Synthesis of poly(dopamine quinone-chromium(III) complex) @hierarchical cabbage flower-like cobalt as a novel mesoporous nanocomposite modifier of graphite paste electrode for electrochemical determination of quercetin in biological samples. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128739] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Karakaya S, Kaya İ. An electrochemical detection platform for selective and sensitive voltammetric determination of quercetin dosage in a food supplement by poly(9-(2-(pyren-1-yl)ethyl)-9h-carbazole) coated indium tin oxide electrode. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Ibrahim M, Ibrahim H, Almandil NB, Sayed MA, Kawde AN. A new hybrid nanocomposite electrode based on Au/CeO 2-decorated functionalized glassy carbon microspheres for the voltammetric sensing of quercetin and its interaction with DNA. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:2846-2857. [PMID: 32930208 DOI: 10.1039/d0ay00507j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A new hybrid composite containing cerium oxide nanoparticle (CeO2NP) and gold nanoparticle (AuNP)-decorated functionalized glassy carbon microspheres (FGCM) was synthesized (Au/CeO2@FGCM). As a result, an Au/CeO2@FGCM-paraffin oil paste electrode (PE) (Au/CeO2@FGCM-PE) was fabricated and employed for the voltammetric sensing of quercetin (QRT). The structure and surface morphology of Au/CeO2@FGCM were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Cyclic voltammetry (CV), square wave voltammetry (SWV) and electrochemical impedance spectroscopy (EIS) were employed for the investigation of the electrochemical behavior of Au/CeO2@FGCM-PE. Under the optimum conditions, the SWV oxidation peak current showed linear dependence on the QRT concentration in the range from 48 nM to 1.09 μM. The achieved limits of detection and quantitation were 0.37 nM and 1.22 nM, respectively. Au/CeO2@FGCM-PE was reproducible, sensitive and stable and displayed anti-interference ability for various common interferents. The proposed method was also successfully applied for real sample analysis. The QRT content extracted from natural sources was determined, and satisfactory results were achieved. Furthermore, the interaction of QRT with salmon testes and calf thymus dsDNA (st-DNA and ct-DNA) on Au/CeO2@FGCM-PE was studied by CV and SWV. The corresponding binding constant (K), surface concentration (Γ), and Gibbs free energy (ΔG°) were computed for the free QRT and the bound QRT-dsDNA complex. The calculated K values for the QRT-ct-DNA and QRT-st-DNA complexes were found to be 6.24 × 105 M-1 and 3.63 × 105 M-1, respectively, which revealed that QRT strongly interacted with ct-DNA compared to that with st-DNA. The decreased intensity of the QRT oxidation peak resulting from its interaction with dsDNA provides a chance to use QRT as a new indicator to analyze ct-DNA and st-DNA.
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Affiliation(s)
- Mohamed Ibrahim
- Department of Clinical Pharmacy Research, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia.
| | - Hossieny Ibrahim
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt.
| | - Noor B Almandil
- Department of Clinical Pharmacy Research, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia.
| | - Marwa A Sayed
- Department of Industrial Pharmacy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Abdel-Nasser Kawde
- Chemistry Department, College of Sciences, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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9
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Nghia NN, Huy BT, Lee YI. Highly sensitive and selective optosensing of quercetin based on novel complexation with yttrium ions. Analyst 2020; 145:3376-3384. [PMID: 32239000 DOI: 10.1039/d0an00117a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A simple and fast method was developed for the determination of quercetin. The concentration of quercetin can be determined based on the fluorescence emission resulting from the coordinative interactions between quercetin and the yttrium ion (Y3+). Notably, a portable platform to quantitatively analyze quercetin was constructed. This platform incorporates our custom-built homemade reader based on a photodiode, and Arduino hardware, which accepts a paper ribbon on which Y3+ is deposited as an input. In addition, the color change of the paper ribbon was identified using a smartphone via the hue values of the photographs. The limits of detection for quercetin using spectroscopy, a smartphone, and a custom-built reader were calculated to be 27, 110, and 129 nM, respectively. The use of a custom-built device and a smartphone for detecting quercetin via fluorescence from the prepared paper ribbon reduces the time and cost of quercetin detection. This approach could be employed for on-site sensing of quercetin in real samples.
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Affiliation(s)
- Nguyen Ngoc Nghia
- Department of Chemistry, Changwon National University, Changwon 51140, Republic of Korea.
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10
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Demir E, Senocak A, Tassembedo-Koubangoye MF, Demirbas E, Aboul-Eneın HY. Electrochemical Evaluation of the Total Antioxidant Capacity of Yam Food Samples on a Polyglycine-Glassy Carbon Modified Electrode. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411014666180619143729] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background:
The total antioxidant capacity of yam food grown in southern African regions
was investigated by a polyglycine-glassy carbon modified electrode. The modified electrode was fabricated
using glycine solution on glassy carbon electrode by electrodeposition method. The proposed
modified electrode is found to be nearly 3.15-fold more sensitive than the bare electrode. For the
measurement of the total antioxidants of yam, differential pulse stripping voltammetry (DPSV) was
employed with standard quercetin compound.
Methods:
The total antioxidant capacity of yam was deduced by DPSV and cyclic voltammetry (CV)
methods. The basic parameters for the stripping technique such as pH, accumulation time and accumulation
potential were optimized as 20 s, 200 mV and a pH of 3 Britton-Robinson (B-R) buffer solutions
in 0.5 mg quercetin/L, respectively.
Results:
In the optimization condition, the linear working range was determined between 5.0 μg/L and
80.0 µg/L for the quercetin. The detection (LOD) and quantification (LOQ) limits of quercetin were
found to be 0.39 µg/L and 1.39 µg/L on the modified electrode by DPSV, respectively. The procedure
was also applied to natural yam samples and total antioxidant capacity of 0.1 kg of yam was determined
as 96.15 ± 0.85 µg/L of equivalent quercetin at 95% confidence level with the relative standard
deviations of 0.88%.
Conclusion:
Sensitive and selective voltammetric method was developed for the determination of total
antioxidant capacity in yam. Moreover, the modified polyglycine-glassy carbon electrode was constructed
more selectively for quercetin. As a result, a simple, sensitive and rapid new voltammetric
method for the determination of antioxidants has been developed using the modified electrode.
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Affiliation(s)
- Ersin Demir
- Department of Food Engineering, Faculty of Engineering, Okan University, Istanbul, 34959, Turkey
| | - Ahmet Senocak
- Department of Chemistry, Gebze Technical University, 41400 Gebze, Kocaeli, Turkey
| | | | - Erhan Demirbas
- Department of Chemistry, Gebze Technical University, 41400 Gebze, Kocaeli, Turkey
| | - Hassan Y. Aboul-Eneın
- Pharmaceutical and Medicinal Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Dokki, Giza 12622, Egypt
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Vinothkumar V, Sangili A, Chen SM, Veerakumar P, Lin KC. Sr-Doped NiO3 nanorods synthesized by a simple sonochemical method as excellent materials for voltammetric determination of quercetin. NEW J CHEM 2020. [DOI: 10.1039/c9nj05660b] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A fabricated Sr-doped NiO3 nanorod-modified GCE was developed for electrochemical sensing of quercetin.
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Affiliation(s)
- Venkatachalam Vinothkumar
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 10608
- Republic of China
| | - Arumugam Sangili
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 10608
- Republic of China
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 10608
- Republic of China
| | - Pitchaimani Veerakumar
- Department of Chemistry
- National Taiwan University
- Taipei
- Republic of China
- Institute of Atomic and Molecular Sciences
| | - King-Chuen Lin
- Department of Chemistry
- National Taiwan University
- Taipei
- Republic of China
- Institute of Atomic and Molecular Sciences
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12
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A Simple and Green Microextraction Procedure for Extraction of Morin in Food and Beverages Using Ionic Liquid. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01514-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Wang ZX, Gao YF, Jin X, Yu XH, Tao X, Kong FY, Fan DH, Wang W. Excitation-independent emission carbon nanoribbon polymer as a ratiometric photoluminescent probe for highly selective and sensitive detection of quercetin. Analyst 2019; 144:2256-2263. [DOI: 10.1039/c9an00094a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In this study, sulfur–nitrogen co-doped carbon nanoribbon (SNCNR) polymers with stable dual-emission fluorescence were synthesized using a one-step traditional hydrothermal method of 6-mercaptopurine in an aqueous methanol solution.
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Affiliation(s)
- Zhong-Xia Wang
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province
| | - Yuan-Fei Gao
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Xing Jin
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Xian-He Yu
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Xi Tao
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Fen-Ying Kong
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Da-He Fan
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
| | - Wei Wang
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- PR China
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Ponnaiah SK, Periakaruppan P. A glassy carbon electrode modified with a copper tungstate and polyaniline nanocomposite for voltammetric determination of quercetin. Mikrochim Acta 2018; 185:524. [PMID: 30374580 DOI: 10.1007/s00604-018-3071-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 10/24/2018] [Indexed: 12/20/2022]
Abstract
A binary nanocomposite of type copper tungstate and polyaniline (CuWO4@PANI) is described that was obtained by single step polymerization on the surface of a glassy carbon electrode (GCE). The resulting electrode is shown to be a viable tool for voltammetric sensing of quercetin (Qn) in blood, urine and certain food samples. The nanocomposite was characterized by UV-visible absorption spectroscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction and high-resolution transmission electron microscopy. Differential pulse voltammetry was applied to quantify Qn, typically at the relatively low working potential of 0.15 V (vs. Ag/AgCl). The modified GCE has a wide analytical range (0.001-0.500 μM) and a low detection limit (1.2 nM). The sensor is reproducible, selective and stable. This makes it suitable for determination of Qn in real samples without complicated sample pretreatment. Graphical abstract Schematic of a copper tungstate and polyaniline nanocomposite modified glassy carbon electrode for voltammetric determination of quercetin in real samples.
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15
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Electrochemical synthesis of a nanocomposite consisting of carboxy-modified multi-walled carbon nanotubes, polythionine and platinum nanoparticles for simultaneous voltammetric determination of myricetin and rutin. Mikrochim Acta 2018; 185:414. [DOI: 10.1007/s00604-018-2947-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/02/2018] [Indexed: 11/27/2022]
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16
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Kokulnathan T, Sakthinathan S, Chen SM, Karthik R, Chiu TW. Hexammine cobalt(iii) coordination complex grafted reduced graphene oxide composite for sensitive and selective electrochemical determination of morin in fruit samples. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00055g] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The RGO/[Co(NH3)6]3+/GCE modified GCE was potentially applied for the electrochemical detection of MR.
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Affiliation(s)
- Thangavelu Kokulnathan
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106
- R.O.C
| | - Subramanian Sakthinathan
- Department of Materials and Mineral Resources Engineering
- National Taipei University of Technology
- Taipei-106
- Taiwan
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106
- R.O.C
| | - Raj Karthik
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106
- R.O.C
| | - Te-Wei Chiu
- Department of Materials and Mineral Resources Engineering
- National Taipei University of Technology
- Taipei-106
- Taiwan
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17
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Electrochemical quercetin sensor based on a nanocomposite consisting of magnetized reduced graphene oxide, silver nanoparticles and a molecularly imprinted polymer on a screen-printed electrode. Mikrochim Acta 2017; 185:70. [DOI: 10.1007/s00604-017-2613-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 12/06/2017] [Indexed: 01/08/2023]
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18
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Erady V, Mascarenhas RJ, Satpati AK, Detriche S, Mekhalif Z, Delhalle J, Dhason A. A novel and sensitive hexadecyltrimethylammoniumbromide functionalized Fe decorated MWCNTs modified carbon paste electrode for the selective determination of Quercetin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:114-122. [DOI: 10.1016/j.msec.2017.03.082] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/03/2017] [Accepted: 03/11/2017] [Indexed: 12/14/2022]
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19
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Li J, Qu J, Yang R, Qu L, de B. Harrington P. A Sensitive and Selective Electrochemical Sensor Based on Graphene Quantum Dot/Gold Nanoparticle Nanocomposite Modified Electrode for the Determination of Quercetin in Biological Samples. ELECTROANAL 2016. [DOI: 10.1002/elan.201500490] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Sensitive determination of kaempferol using carbon dots as a fluorescence probe. Talanta 2015; 144:390-7. [DOI: 10.1016/j.talanta.2015.07.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 06/26/2015] [Accepted: 07/02/2015] [Indexed: 12/24/2022]
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Russo M, Spagnuolo C, Bilotto S, Tedesco I, Maiani G, Russo GL. Inhibition of protein kinase CK2 by quercetin enhances CD95-mediated apoptosis in a human thymus-derived T cell line. Food Res Int 2014. [DOI: 10.1016/j.foodres.2014.05.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Graphene oxide functionalized with silver@silica–polyethylene glycol hybrid nanoparticles for direct electrochemical detection of quercetin. Biosens Bioelectron 2014; 58:200-4. [DOI: 10.1016/j.bios.2014.02.062] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 02/21/2014] [Accepted: 02/25/2014] [Indexed: 11/20/2022]
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Yola ML, Gupta VK, Eren T, Şen AE, Atar N. A novel electro analytical nanosensor based on graphene oxide/silver nanoparticles for simultaneous determination of quercetin and morin. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.12.086] [Citation(s) in RCA: 358] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Synthesis, characterization, DNA interaction, and antitumor activities of mixed-ligand metal complexes of kaempferol and 1,10-phenanthroline/2,2′-bipyridine. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0863-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Devi WR, Singh SB, Singh CB. Antioxidant and anti-dermatophytic properties leaf and stem bark of Xylosma longifolium clos. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 13:155. [PMID: 23819459 PMCID: PMC3718714 DOI: 10.1186/1472-6882-13-155] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 05/02/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND The present study was carried out to assess the phytochemical and anti-dermatophytic effect of the leaf and bark extracts of Xylosma longifolium Clos. The leaf and stem bark are used by the indigenous people of Manipur, India for treatment of skin diseases. METHODS The leaves and stem barks of Xylosma longifolium were extracted using petroleum ether, chloroform and methanol respectively. The different extracts of each plant parts were tested for antioxidant activity using DPPH assay. The phenolic content was assayed using Folin-Ciocalteu colorimetric method. Each extracts was further analysed by RP-HPLC to quantify some individual flavonoid components. The anti-dermatophytic activity was evaluated both by agar diffusion method and micro wells dilution method against the Microsporum boullardii MTCC 6059, M. canis (MTCC 2820 and MTCC 32700), M. gypseum MTCC 2819, Trichophyton ajelloi MTCC 4878, T. rubrum (MTCC 296 and MTCC 3272). RESULTS The free radical scavenging activity values were ranged from 0.7 to 1.41 mg/ml and 0.6 to 1.23 mg/ml, respectively for leaf and stem bark extracts. The amount of total phenolic contents of the extracts occurred in both leaf and bark in the range of 12 to 56.6 mg GAE/100 g and 16 to 58 mg GAE/100 g respectively. RP-HPLC analysis for flavonoids revealed the presence of two major flavonoid compounds, rutin and catechin. Kaempferol was in trace or absent. Methanol leaf extract showed significant low inhibitory effect against tested fungus Trichophyton ajelloi MTCC 4878 (0.140625 mg/ml) as the most sensitive. These finding suggest that the methanol leaf extract tested contain compounds with antimicrobial properties. CONCLUSION The results of our study may partially justify the folkloric uses on the plant studied and further provide an evidence that the leaf extract of Xylosma longifolium might be indeed a potential sources of antimicrobial agents.
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Affiliation(s)
- Wangkheirakpam Radhapiyari Devi
- Medicinal and Horticultural Plant Resources Division, Institute of Bioresources and Sustainable Development, Imphal 795001, Manipur, India
| | - S Brojendro Singh
- Medicinal and Horticultural Plant Resources Division, Institute of Bioresources and Sustainable Development, Imphal 795001, Manipur, India
| | - Chingakham B Singh
- Medicinal and Horticultural Plant Resources Division, Institute of Bioresources and Sustainable Development, Imphal 795001, Manipur, India
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Yola ML, Atar N, Üstündağ Z, Solak AO. A novel voltammetric sensor based on p-aminothiophenol functionalized graphene oxide/gold nanoparticles for determining quercetin in the presence of ascorbic acid. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.03.016] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Gao J, Inagaki Y, Liu Y. Research progress on flavonoids isolated from traditional Chinese medicine in treatment of Alzheimer's disease. Intractable Rare Dis Res 2013; 2:3-10. [PMID: 25343094 PMCID: PMC4204571 DOI: 10.5582/irdr.2013.v2.1.3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 01/16/2013] [Accepted: 01/27/2013] [Indexed: 01/06/2023] Open
Abstract
Alzheimer's disease (AD) is a severe condition in aging countries. The currently used drugs including donepezil, rivastigmine, galantamine, and memantine are effective in managing the symptoms. However, they are hardly capable of preventing, halting, or reversing the disease. In the long history of development of traditional Chinese medicine, much experience has accumulated and is summarized in treatment of diseases that correspond to the concept of AD. In recent years, exploration of natural active ingredients from medicinal herbs for treatment of AD has attracted substantial attention. Some flavonoids have been revealed to have a variety of biological actions such as scavenging free radicals, inhibiting neuron apoptosis, and nurturing neuronal cells that constitute the basis for treatment of AD. In this article, we review recent research progress on flavonoids isolated from traditional Chinese medicine against AD and their underlying mechanisms.
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Affiliation(s)
- Jianjun Gao
- Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Address correspondence to: Dr. Jianjun Gao, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. E-mail:
| | - Yoshinori Inagaki
- The Laboratory of Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Yang Liu
- Department of Anesthesia, Shandong Provincial Qianfoshan Hospital, Ji'nan, Shandong, China
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Wang J, Wang H, Han S. Ultrasensitive determination of epicatechin, rutin, and quercetin by capillary electrophoresis chemiluminescence. ACTA CHROMATOGR 2012. [DOI: 10.1556/achrom.24.2012.4.13] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Li G, Zeng X, Xie Y, Cai Z, Moore JC, Yuan X, Cheng Z, Ji G. Pharmacokinetic properties of isorhamnetin, kaempferol and quercetin after oral gavage of total flavones of Hippophae rhamnoides L. in rats using a UPLC–MS method. Fitoterapia 2012; 83:182-91. [DOI: 10.1016/j.fitote.2011.10.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 10/15/2011] [Accepted: 10/17/2011] [Indexed: 11/24/2022]
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Zuo A, Yanying Y, Li J, Binbin X, Xiongying Y, Yan Q, Shuwen C. Study on the relation of structure and antioxidant activity of isorhamnetin, quercetin, phloretin, silybin and phloretin isonicotinyl hydrazone. ACTA ACUST UNITED AC 2011. [DOI: 10.5530/ax.2011.4.7] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Park YM, Kang MJ, Moon KY, Park SH, Kang MH, Choi YW. Liposome/Tat Complex for Facilitating Genistein Uptake into B16 Melanoma Cells. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2011. [DOI: 10.4333/kps.2011.41.4.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Zheng XF, Zao J, Chen GF, Liu SL, Li GX. Electroanalysis of kaempferol using pyrolytic graphite and a hemoglobin/polysorbate-20 modified electrodes. JOURNAL OF ANALYTICAL CHEMISTRY 2011. [DOI: 10.1134/s1061934808040126] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tsiklauri L, An G, Ruszaj DM, Alaniya M, Kemertelidze E, Morris ME. Simultaneous determination of the flavonoids robinin and kaempferol in human breast cancer cells by liquid chromatography-tandem mass spectrometry. J Pharm Biomed Anal 2010; 55:109-13. [PMID: 21232900 DOI: 10.1016/j.jpba.2010.12.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2010] [Revised: 12/15/2010] [Accepted: 12/15/2010] [Indexed: 11/17/2022]
Abstract
An accurate, precise and sensitive method was developed and validated for the simultaneous quantification of the flavonoid glycoside robinin, and its algycone kaempferol in human breast cancer MCF-7 cells. The application of liquid chromatography-tandem mass spectrometry (LC/MS/MS) with a TurboIonspray interface in negative mode under multiple reactions monitoring was investigated. Chromatographic separation was achieved on a C(18) column using a mobile phase consisting of (A) water with 0.025% formic acid and 1mM ammonium formate and (B) acetonitrile with 0.025% formic acid. Rutin was used as the internal standard for robinin and fisetin as the internal standard for kaempferol. The assay had a limit of detection of 0.1ng/ml for both compounds when present in cell lysate. The calibration curves were linear from 1 to 250ng/ml (r>0.999) for each compound. The intra- and inter-day coefficients of variation were less than 10% and intra- and inter-day accuracies were within 11%. This assay was successfully applied in a robinin cellular uptake study to determine the intracellular concentrations of robinin in MCF-7 cells.
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Affiliation(s)
- Lia Tsiklauri
- Iovel Kutateladze Pharmacochemistry Institute, P. Sarajishvili st 36, Tbilisi 0159, Georgia
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Dietary quercetin exacerbates the development of estrogen-induced breast tumors in female ACI rats. Toxicol Appl Pharmacol 2010; 247:83-90. [PMID: 20600213 DOI: 10.1016/j.taap.2010.06.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 06/10/2010] [Accepted: 06/14/2010] [Indexed: 11/20/2022]
Abstract
Phytoestrogens are plant compounds that structurally mimic the endogenous estrogen 17beta-estradiol (E(2)). Despite intense investigation, the net effect of phytoestrogen exposure on the breast remains unclear. The objective of the current study was to examine the effects of quercetin on E(2)-induced breast cancer in vivo. Female ACI rats were given quercetin (2.5 g/kg food) for 8 months. Animals were monitored weekly for palpable tumors, and at the end of the experiment, rats were euthanized, breast tumor and different tissues excised so that they could be examined for histopathologic changes, estrogen metabolic activity and oxidant stress. Quercetin alone did not induce mammary tumors in female ACI rats. However, in rats implanted with E(2) pellets, co-exposure to quercetin did not protect rats from E(2)-induced breast tumor development with 100% of the animals developing breast tumors within 8 months of treatment. No changes in serum quercetin levels were observed in quercetin and quercetin+E(2)-treated groups at the end of the experiment. Tumor latency was significantly decreased among rats from the quercetin+E(2) group relative to those in the E(2) group. Catechol-O-methyltransferase (COMT) activity was significantly downregulated in quercetin-exposed mammary tissue. Analysis of 8-isoprostane F(2alpha) (8-iso-PGF(2alpha)) levels as a marker of oxidant stress showed that quercetin did not decrease E(2)-induced oxidant stress. These results indicate that quercetin (2.5 g/kg food) does not confer protection against breast cancer, does not inhibit E(2)-induced oxidant stress and may exacerbate breast carcinogenesis in E(2)-treated ACI rats. Inhibition of COMT activity by quercetin may expose breast cells chronically to E(2) and catechol estrogens. This would permit longer exposure times to the carcinogenic metabolites of E(2) and chronic exposure to oxidant stress as a result of metabolic redox cycling to estrogen metabolites, and thus quercetin may exacerbate E(2)-induced breast tumors in female ACI rats.
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Wang Y, Cao J, Wang X, Zeng S. Stereoselective transport and uptake of propranolol across human intestinal Caco-2 cell monolayers. Chirality 2010; 22:361-8. [PMID: 19575464 DOI: 10.1002/chir.20753] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The transport and uptake of individual propranolol (PPL) enantiomers were studied in human intestinal Caco-2 cell monolayers, and a reversed-phase HPLC-UV assay was used for quantitative analysis. S-PPL and R-PPL across Caco-2 cell monolayers was determined in the concentrations range of 10-500 microM in both apical (AP) to basolateral (BL) and BL to AP directions. S-PPL exhibited greater permeability than R-PPL in the AP to BL direction, whereas in the BL to AP direction S-enantiomer transported less than R-enantiomer. Uptake of R-PPL was significantly higher than that of S-PPL either from AP side or from BL side. The statistically significant differences in uptake were observed at the concentrations range from 10 to 50 microM. Furthermore, the apparent Michaelis constant (K(m)) and maximal velocity (V(max)) also showed significant difference between the two enantiomers. Moreover, the AP to BL transport of PPL enantiomer was markedly decreased by lowering the pH of the apical side but it did not affect the stereoselectivity of PPL across Caco-2 cell monolayers. The transport and uptake of PPL in the BL to AP direction was not influenced by several protein inhibitors. The results suggest that PPL enantiomers showed stereoselective transport and uptake across the Caco-2 cell monolayers. A special transport mechanism capable of directing the PPL enantiomers might be present in the Caco-2 monolayers.
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Affiliation(s)
- Yi Wang
- Department of Pharmaceutical Analysis and Drug Metabolism, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310031, People's Republic of China
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van Beek TA, Montoro P. Chemical analysis and quality control of Ginkgo biloba leaves, extracts, and phytopharmaceuticals. J Chromatogr A 2009; 1216:2002-32. [DOI: 10.1016/j.chroma.2009.01.013] [Citation(s) in RCA: 320] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 12/31/2008] [Accepted: 01/09/2009] [Indexed: 01/06/2023]
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Separation of quercetin, sexangularetin, kaempferol and isorhamnetin for simultaneous HPLC determination of flavonoid aglycones in inflorescences, leaves and fruits of three Sorbus species. J Pharm Biomed Anal 2008; 48:629-35. [DOI: 10.1016/j.jpba.2008.06.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2008] [Revised: 05/30/2008] [Accepted: 06/05/2008] [Indexed: 11/19/2022]
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38
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Zhou X, Xiang B, Wang Z, Zhang M. Determination of Quercetin in Extracts ofGinkgo biloba L.Leaves by Near‐Infrared Reflectance Spectroscopy Based on Interval Partial Least‐Squares (iPLS) Model. ANAL LETT 2008. [DOI: 10.1080/00032710701689081] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Xiaohua Zhou
- a Center for Instrumental Analysis, China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education , Nanjing, P. R. China
| | - Bingren Xiang
- a Center for Instrumental Analysis, China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education , Nanjing, P. R. China
| | - Zhimei Wang
- a Center for Instrumental Analysis, China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education , Nanjing, P. R. China
| | - Mei Zhang
- b Jiangsu Institute for Drug Control , Nanjing, P. R. China
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Xiao P, Zhao F, Zeng B. Voltammetric determination of quercetin at a multi-walled carbon nanotubes paste electrode. Microchem J 2007. [DOI: 10.1016/j.microc.2006.06.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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40
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Zhao YX, Gao JQ, Qiao HL, Chen HL, Liang WQ. Development and validation of a sensitive reversed-phase HPLC method to determine intracellular accumulation of hydroxycamptothecin. J Pharm Biomed Anal 2006; 41:1007-10. [PMID: 16497465 DOI: 10.1016/j.jpba.2006.01.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2005] [Revised: 12/27/2005] [Accepted: 01/04/2006] [Indexed: 11/25/2022]
Abstract
The intracellular accumulation of anti-cancer agents strongly influences the efficiency of chemotherapy for cancer. In the present study, a simple, rapid, sensitive reversed-phase high-performance liquid chromatographic (RP-HPLC) method was developed and validated to determine hydroxycamptothecin (HCPT) in Eca109 cells. HCPT in cellular lysis solution were measured by RP-HPLC with a C18 column after extraction with ethyl acetate. The mobile phase contained 0.1% triethylamine-phosphoric acid buffer (pH 3.0) and acetonitrile (75:25, v/v). Fluorescence detector with excitation and emission wavelengths of 382 and 528 nm was used for determination of HCPT. The calibration curve was linear from 2 to 100 ng/ml with correlation coefficient of 0.9999, while the limit of quantification is 2 ng/ml. The recovery of assay was between 86.5 and 105.2%. The intra- and inter-day coefficients of variation were less than 10% (R.S.D.). Furthermore, the validated method was used to determine the accumulation of HCPT after incubating the liposomal formulation of HCPT and HCPT for injection with the intact cells. HCPT liposomes showed higher intracellular accumulation of HCPT at different incubation times compared with that of conventional HCPT injection.
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Affiliation(s)
- Yong-Xing Zhao
- College of Pharmaceutical Sciences, Zhejiang University, 353 Yan'an Road, Hangzhou, Zhejiang 310031, PR China
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