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Barreiro-Sisto U, Fernández-Fariña S, González-Noya AM, Pedrido R, Maneiro M. Enemies or Allies? Hormetic and Apparent Non-Dose-Dependent Effects of Natural Bioactive Antioxidants in the Treatment of Inflammation. Int J Mol Sci 2024; 25:1892. [PMID: 38339170 PMCID: PMC10855620 DOI: 10.3390/ijms25031892] [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: 12/26/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
This review aims to analyze the emerging number of studies on biological media that describe the unexpected effects of different natural bioactive antioxidants. Hormetic effects, with a biphasic response depending on the dose, or activities that are apparently non-dose-dependent, have been described for compounds such as resveratrol, curcumin, ferulic acid or linoleic acid, among others. The analysis of the reported studies confirms the incidence of these types of effects, which should be taken into account by researchers, discarding initial interpretations of imprecise methodologies or measurements. The incidence of these types of effects should enhance research into the different mechanisms of action, particularly those studied in the field of basic research, that will help us understand the causes of these unusual behaviors, depending on the dose, such as the inactivation of the signaling pathways of the immune defense system. Antioxidative and anti-inflammatory activities in biological media should be addressed in ways that go beyond a mere statistical approach. In this work, some of the research pathways that may explain the understanding of these activities are revised, paying special attention to the ability of the selected bioactive compounds (curcumin, resveratrol, ferulic acid and linoleic acid) to form metal complexes and the activity of these complexes in biological media.
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Affiliation(s)
- Uxía Barreiro-Sisto
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (U.B.-S.); (S.F.-F.)
| | - Sandra Fernández-Fariña
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (U.B.-S.); (S.F.-F.)
| | - Ana M. González-Noya
- Departamento de Química Inorgánica, Facultade de Química, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Rosa Pedrido
- Departamento de Química Inorgánica, Facultade de Química, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Marcelino Maneiro
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (U.B.-S.); (S.F.-F.)
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2
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Bijlsma J, Moslehi N, Velikov KP, Kegel WK, Vincken JP, de Bruijn WJC. Reactivity of Fe(III)-containing pyrophosphate salts with phenolics: complexation, oxidation, and surface interaction. Food Chem 2023; 407:135156. [PMID: 36525808 DOI: 10.1016/j.foodchem.2022.135156] [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: 07/15/2022] [Revised: 11/16/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022]
Abstract
Mixed pyrophosphate salts with the general formula Ca2(1-x)Fe4x(P2O7)(1+2x) potentially possess less iron-phenolic reactivity compared to ferric pyrophosphate (FePP), due to decreased soluble Fe in the food-relevant pH range 3-7. We investigated reactivity (i.e., complexation, oxidation, and surface interaction) of FePP and mixed salts (with x = 0.14, 0.15, 0.18, and 0.35) in presence of structurally diverse phenolics. At pH 5-7, increased soluble iron from all salts was observed in presence of water-soluble phenolics. XPS confirmed that water-soluble phenolics solubilize iron after coordination at the salt surface, resulting in increased discoloration. However, color changes for mixed salts with x ≤ 0.18 remained acceptable for slightly water-soluble and insoluble phenolics. Furthermore, phenolic oxidation in presence of mixed salts was significantly reduced compared to FePP at pH 6. In conclusion, these mixed Ca-Fe(III) pyrophosphate salts with x ≤ 0.18 can potentially be used in designing iron-fortified foods containing slightly water-soluble and/or insoluble phenolics.
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Affiliation(s)
- Judith Bijlsma
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, P.O. Box 17, 6700 AA, Wageningen, the Netherlands.
| | - Neshat Moslehi
- Van 't Hoff Laboratory for Physical and Colloidal Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands.
| | - Krassimir P Velikov
- Unilever Innovation Centre Wageningen, Bronland 14, 6708 WH Wageningen, the Netherlands; Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 5, 3584 CC Utrecht, the Netherlands; Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands.
| | - Willem K Kegel
- Van 't Hoff Laboratory for Physical and Colloidal Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, the Netherlands.
| | - Jean-Paul Vincken
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, P.O. Box 17, 6700 AA, Wageningen, the Netherlands.
| | - Wouter J C de Bruijn
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, P.O. Box 17, 6700 AA, Wageningen, the Netherlands.
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3
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Tang S, Zhu E, Zhai Z, Liu H, Wang Z, Jiao T, Zhang Q, Yuan D. Promoted elimination of metronidazole in ferrous ions activated peroxydisulfate process by gallic acid complexation. CHEMOSPHERE 2023; 319:138025. [PMID: 36736474 DOI: 10.1016/j.chemosphere.2023.138025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/07/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
We applied gallic acid (GA) as the complexing agent to stabilizing the regeneration of Fe2+ during the Fe2+/peroxydisulfate (PDS) Fenton-like reaction for promoting the removal of metronidazole (MTZ). This research evaluated the elimination of MTZ by optimizing the dose of GA and Fe2+ and pH condition. MTZ removal reached 83% at the GA: Fe2+ molar ratio of 1:1 (30 μM) and initial pH 5 and 6.2 after 120 min, and the kinetics showed two degradation phases (kobs1 = 0.09636 for the rapid stage and kobs2 = 0.01056 for the slow stage). The Fe2+ and GA complexes could expand the range of pH applicability and effectively stabilize the regeneration of Fe2+, which ultimately promoted the decontamination of MTZ. Sulfate radical (SO4.-), hydroxyl radicals, and singlet oxygen were proved to exist in this ternary system and contribute to MTZ removal, and SO4.- played the dominant role. Furthermore, the possible pathways and mechanisms for MTZ degradation were proposed, and the simulation result indicated that the toxicity of degradation intermediates of MTZ were declined. The GA assisted Fe2+/PDS system provided an improved promising advanced oxidation process for organic wastewater disposal.
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Affiliation(s)
- Shoufeng Tang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Eryu Zhu
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Zhihui Zhai
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Huilin Liu
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Zhibing Wang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Qingrui Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Deling Yuan
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
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Prestianni L, Espinal ER, Hathcock SF, Vollmuth N, Wang P, Holler RA, Liu S, Kim BJ, Bao Y. Synthesis and Characterization of Quercetin-Iron Complex Nanoparticles for Overcoming Drug Resistance. Pharmaceutics 2023; 15:pharmaceutics15041041. [PMID: 37111527 PMCID: PMC10144594 DOI: 10.3390/pharmaceutics15041041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/16/2023] [Accepted: 03/17/2023] [Indexed: 04/29/2023] Open
Abstract
Quercetin, one of the major natural flavonoids, has demonstrated great pharmacological potential as an antioxidant and in overcoming drug resistance. However, its low aqueous solubility and poor stability limit its potential applications. Previous studies suggest that the formation of quercetin-metal complexes could increase quercetin stability and biological activity. In this paper, we systematically investigated the formation of quercetin-iron complex nanoparticles by varying the ligand-to-metal ratios with the goal of increasing the aqueous solubility and stability of quercetin. It was found that quercetin-iron complex nanoparticles could be reproducibly synthesized with several ligand-to-iron ratios at room temperature. The UV-Vis spectra of the nanoparticles indicated that nanoparticle formation greatly increased the stability and solubility of quercetin. Compared to free quercetin, the quercetin-iron complex nanoparticles exhibited enhanced antioxidant activities and elongated effects. Our preliminary cellular evaluation suggests that these nanoparticles had minimal cytotoxicity and could effectively block the efflux pump of cells, indicating their potential for cancer treatment.
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Affiliation(s)
- Lucas Prestianni
- Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Eric R Espinal
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Sarah F Hathcock
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Nadine Vollmuth
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Pixiang Wang
- Department of Chemistry and Physics, Center for Materials and Manufacturing Sciences, Troy University, Troy, AL 36082, USA
| | - Robert A Holler
- Alabama Analytical Research Center, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Shaoyang Liu
- Department of Chemistry and Physics, Center for Materials and Manufacturing Sciences, Troy University, Troy, AL 36082, USA
| | - Brandon J Kim
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA
- Department of Microbiology, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35487, USA
- Center for Convergent Biosciences and Medicine, The University of Alabama, Tuscaloosa, AL 35487, USA
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Yuping Bao
- Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA
- Center for Convergent Biosciences and Medicine, The University of Alabama, Tuscaloosa, AL 35487, USA
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL 35487, USA
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5
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Du C, Xu N, Yao Z, Bai X, Gao Y, Peng L, Gu B, Zhao J. Mechanistic insights into sulfate and phosphate-mediated hexavalent chromium removal by tea polyphenols wrapped nano-zero-valent iron. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:157996. [PMID: 35964743 DOI: 10.1016/j.scitotenv.2022.157996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/25/2022] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
Nano zero-valent iron via green synthesis (g-nZVI) has great potential in removing toxic hexavalent Cr(VI) from industrial wastewater. Sulfate and phosphate in wastewater can influence Cr(VI) removal by g-nZVI. In this study, the Cr(VI) removal kinetics by different g-nZVI materials were investigated with the existence of sulfate and/or phosphate, and the corresponding mechanisms were first revealed using multiple characterizations, including X-ray absorption near-edge spectra (XANES) and X-ray photoelectron spectroscopy (XPS). The results showed that Cr(OH)3 was the dominant species initially formed on the surface of g-nZVI particles before transforming to Cr2O3 during the reaction of g-nZVI with Cr(VI). Sulfate in wastewater can promote the reduction from Cr(VI) to Cr(OH)3 by g-nZVI, because sulfate triggers the release of Fe(II) and tea polyphenols (from tea extracts) from the g-nZVI surface due to the corrosion of Fe0 core, which is in line with an obvious increase in pseudo-second-order rate constant (k2) and subtle change in Cr(VI) removal capacity (qe). However, phosphate impedes the g-nZVI corrosion and inhibits qe because of the inner-sphere complexation of phosphate onto g-nZVI decreasing the released Fe(II) for Cr2O3 production. When sulfate and phosphate coexisted in contaminated water, the inhibition effect of phosphate in Cr(VI) removal by g-nZVI was stronger than the promotion of sulfate. Accordingly, qe value of g-nZVI declined from 93.4 mg g-1 to 77.5 mg g-1, while k2 remained constant as the molar ratio of phosphate/sulfate increased from 0.1 to 10 in water. This study provides new insights into applying g-nZVI in efficient Cr(VI) removal from contaminated water with enrichment of sulphates and phosphates.
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Affiliation(s)
- Changsheng Du
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; Jiangsu Key Laboratory of Environmental Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Nan Xu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; Jiangsu Key Laboratory of Environmental Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Zihan Yao
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; Jiangsu Key Laboratory of Environmental Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xu Bai
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yuxi Gao
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lei Peng
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; Jiangsu Key Laboratory of Environmental Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Baohua Gu
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Jiating Zhao
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China.
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6
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Insights into the complexation and oxidation of quercetin and luteolin in aqueous solutions in presence of selected metal cations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Pan Y, Qin R, Hou M, Xue J, Zhou M, Xu L, Zhang Y. The interactions of polyphenols with Fe and their application in Fenton/Fenton-like reactions. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121831] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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8
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Silva FT, Espósito BP. Intracellular Iron Binding and Antioxidant Activity of Phytochelators. Biol Trace Elem Res 2022; 200:3910-3918. [PMID: 34648123 DOI: 10.1007/s12011-021-02965-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/07/2021] [Indexed: 11/28/2022]
Abstract
Phytochelators have been studied as templates for designing new drugs for chelation therapy. This work evaluated key chemical and biological properties of five candidate phytochelators for iron overload diseases: maltol, mimosine, morin, tropolone, and esculetin. Intra- and extracellular iron affinity and antioxidant activity, as well as the ability to scavenge iron from holo-transferrin, were studied in physiologically relevant settings. Tropolone and mimosine (and, to a lesser extent, maltol) presented good binding capacity for iron, removing it from calcein, a high-affinity fluorescent probe. Tropolone and mimosine arrested iron-mediated oxidation of ascorbate with the same efficiency as the standard iron chelator DFO. Also, both were cell permeant and able to access labile pools of iron in HeLa and HepG2 cells. Mimosine was an effective antioxidant in cells stressed by iron and peroxide, being as efficient as the cell-permeant iron chelator deferiprone. These results reinforce the potential of those molecules, especially mimosine, as adjuvants in treatments for iron overload.
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Affiliation(s)
- Fredson Torres Silva
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, SP, Brazil
| | - Breno Pannia Espósito
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, SP, Brazil.
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Bijlsma J, de Bruijn WJC, Velikov KP, Vincken JP. Unravelling discolouration caused by iron-flavonoid interactions: Complexation, oxidation, and formation of networks. Food Chem 2022; 370:131292. [PMID: 34788954 DOI: 10.1016/j.foodchem.2021.131292] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 12/15/2022]
Abstract
Iron-flavonoid interactions in iron-fortified foods lead to undesirable discolouration. This study aimed to investigate iron-mediated complexation, oxidation, and resulting discolouration of flavonoids by spectrophotometric and mass spectrometric techniques. At pH 6.5, iron complexation to the 3-4 or 4-5 site instantly resulted in bathochromic shifting of the π → π* transition bands, and complexation to the 3'-4' site (i.e. catechol moiety) induced a π → dπ transition band. Over time, iron-mediated oxidative degradation and coupling reactions led to the formation of hydroxybenzoic acid derivatives and dehydrodimers, respectively resulting in a decrease or increase in discolouration. Additionally, we employed XRD, SEM, and TEM to reveal the formation of insoluble black metal-phenolic networks (MPNs). This integrated study on iron-mediated complexation and oxidation of flavonoids showed that the presence of the C2-C3 double bond in combination with the catechol moiety and either the 4-carbonyl or 3-hydroxyl increased the intensity of discolouration, extent of oxidation, and formation of MPNs.
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Affiliation(s)
- Judith Bijlsma
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, P.O. Box 17, 6700 AA Wageningen, the Netherlands
| | - Wouter J C de Bruijn
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, P.O. Box 17, 6700 AA Wageningen, the Netherlands
| | - Krassimir P Velikov
- Unilever Innovation Centre B.V. Bronland 14, 6708 WH Wageningen, the Netherlands; Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands; Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 5, 3584 CC Utrecht, the Netherlands
| | - Jean-Paul Vincken
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, P.O. Box 17, 6700 AA Wageningen, the Netherlands.
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10
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Papan P, Kantapan J, Sangthong P, Meepowpan P, Dechsupa N. Iron (III)-Quercetin Complex: Synthesis, Physicochemical Characterization, and MRI Cell Tracking toward Potential Applications in Regenerative Medicine. CONTRAST MEDIA & MOLECULAR IMAGING 2020; 2020:8877862. [PMID: 33456403 PMCID: PMC7785384 DOI: 10.1155/2020/8877862] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 12/09/2020] [Accepted: 12/16/2020] [Indexed: 12/20/2022]
Abstract
In cell therapy, contrast agents T1 and T2 are both needed for the labeling and tracking of transplanted stem cells over extended periods of time through magnetic resonance imaging (MRI). Importantly, the metal-quercetin complex via coordination chemistry has been studied extensively for biomedical applications, such as anticancer therapies and imaging probes. Herein, we report on the synthesis, characterization, and labeling of the iron (III)-quercetin complex, "IronQ," in circulating proangiogenic cells (CACs) and also explore tracking via the use of a clinical 1.5 Tesla (T) MRI scanner. Moreover, IronQ had a paramagnetic T1 positive contrast agent property with a saturation magnetization of 0.155 emu/g at 1.0 T and longitudinal relaxivity (r1) values of 2.29 and 3.70 mM-1s-1 at 1.5 T for water and human plasma, respectively. Surprisingly, IronQ was able to promote CAC growth in conventional cell culture systems without the addition of specific growth factors. Increasing dosages of IronQ from 0 to 200 μg/mL led to higher CAC uptake, and maximum labeling time was achieved in 10 days. The accumulated IronQ in CACs was measured by two methodologies, an inductively coupled plasma optical emission spectrometry (ICP-EOS) and T1-weighted MRI. In our research, we confirmed that IronQ has excellent dual functions with the use of an imaging probe for MRI. IronQ can also act as a stimulating agent by favoring circulating proangiogenic cell differentiation. Optimistically, IronQ is considered beneficial for alternative labeling and in the tracking of circulation proangiogenic cells and/or other stem cells in applications of cell therapy through noninvasive magnetic resonance imaging in both preclinical and clinical settings.
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Affiliation(s)
- Phakorn Papan
- Research Unit of Molecular Imaging Probes and Radiobiology, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jiraporn Kantapan
- Research Unit of Molecular Imaging Probes and Radiobiology, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Padchanee Sangthong
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Puttinan Meepowpan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nathupakorn Dechsupa
- Research Unit of Molecular Imaging Probes and Radiobiology, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
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Vallier MJ, Le Bourvellec C, Dangles O. Iron-induced peroxidation of trilinolein nano-emulsions under model gastric conditions and its inhibition by dietary phenolic antioxidants. Food Funct 2020; 11:9144-9156. [DOI: 10.1039/d0fo01767a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An early mechanism for the health benefits of dietary plant phenols is their antioxidant activity during the initial phase of gastric digestion.
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Affiliation(s)
- Marie-José Vallier
- Avignon University
- INRAE
- UMR408
- Safety & Quality of Plant Products
- 84000 Avignon
| | | | - Olivier Dangles
- Avignon University
- INRAE
- UMR408
- Safety & Quality of Plant Products
- 84000 Avignon
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12
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Wang Y, Chen SY, Yang X, Wu Y, Huang XF, He EK, Qiu RL, Wang S. Enhanced removal of Cr(VI) in the Fe(III)/natural polyphenols system: role of the in situ generated Fe(II). JOURNAL OF HAZARDOUS MATERIALS 2019; 377:321-329. [PMID: 31173982 DOI: 10.1016/j.jhazmat.2019.05.083] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 04/22/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
This study developed a cost-effective and eco-friendly method by coupling plant extracts (take green tea for example) and Fe(III) to reduce Cr(VI) and precipitate Cr(III). At acidic pH, 1.43 mM Fe(III) combined with 1.33 g/L green tea extracts could reduce 93% of Cr(VI) in 180 min, which was much larger than ˜50% by green tea extracts alone. Moreover, 52% of Cr(III) could automatically precipitate out as mixed Fe(III)-Cr(III) (oxy)-hydroxide solids. In the viewpoint of mechanism, polyphenols in green tea extracts were the reactive constituents and transformed Fe(III) to Fe(II), by which step the aqueous Fe(II) level was maintained to continuously reduce Cr(VI) to Cr(III), and thus accelerating Cr(VI) reduction. The generated Fe(III) partially participated in the reaction with polyphenols again and some Fe(III) formed precipitates with Cr(III). Overall, the electron transfers in the polyphenol-Fe-Cr cyclic reactions made Fe(III) used for multiple times, thus accelerated Cr(VI) reduction. The applicability of the combined process was further verified by removing 100% and 70% of Cr(VI) from electroplating wastewater and contaminated soil, respectively. As polyphenols can be derived from plant wastes and Fe(III) is naturally abundant, this study provides a promising method for in situ remediation of Cr(VI)-contaminated sites.
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Affiliation(s)
- Yu Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - Si-Yuan Chen
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - Xin Yang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China.
| | - Yingxin Wu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China; South China Institute of Environmental Sciences, Ministry of Environmental Protection, 7 West Street, Yuancun, Guangzhou, 510655, China
| | - Xiong-Fei Huang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - Er-Kai He
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - Rong-Liang Qiu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - Shizhong Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China.
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13
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Du F, Shuang S, Guo Z, Gong X, Dong C, Xian M, Yang Z. Rapid synthesis of multifunctional carbon nanodots as effective antioxidants, antibacterial agents, and quercetin nanoprobes. Talanta 2019; 206:120243. [PMID: 31514864 DOI: 10.1016/j.talanta.2019.120243] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 08/04/2019] [Accepted: 08/07/2019] [Indexed: 11/19/2022]
Abstract
A facile and rapid synthesis of multifunctional carbon nanodots (CNDs) was developed by using the acid-base neutralization spontaneous heat with glucose as precursor, 1,2-ethylenediamine (EDA) and concentrated nitric acid as dual N-dopants. The CND has a tremendous antioxidant potency, which represents effective inhibitory concentrations of reactive oxygen species that are significantly lower than ascorbic acid. Furthermore, minimum inhibitory concentration (MIC) assay revealed CNDs possessed significant antimicrobial activity for Gram-positive S. aureus and Gram-negative E. coli. Moreover, the CNDs are endowed with favorable fluorescence (FL) behaviors including the quantum yield (QY) of 14.2% and stable FL within a wide range of pH and high tolerance to external ionic strength, rendering them applicable in quercetin (QCT) detection as a FL nanoprobe. The CNDs were effectively quenched by QCT due to static quenching which takes place by the electrostatic interaction between basic groups of CNDs and QCT of 3-hydroxyl. This nanoprobe had profitable selectivity and sensitivity towards QCT with a linearity ranging from 1 μM to 47 μM and a low detection limit of 172.4 nM and were successfully performed for QCT detection in human serum and urine samples.
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Affiliation(s)
- Fangfang Du
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Shaomin Shuang
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Zhonghui Guo
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Xiaojuan Gong
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Chuan Dong
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.
| | - Ming Xian
- Department of Chemistry, Washington State University, Pullman, WA, 99164, USA
| | - Zhenhua Yang
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
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14
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Poly (dopamine quinone-chromium (III) complex) microspheres as new modifier for simultaneous determination of phenolic compounds. Biosens Bioelectron 2018; 102:439-448. [DOI: 10.1016/j.bios.2017.11.042] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 10/18/2017] [Accepted: 11/10/2017] [Indexed: 01/07/2023]
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15
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Xiao L, Luo G, Tang Y, Yao P. Quercetin and iron metabolism: What we know and what we need to know. Food Chem Toxicol 2018; 114:190-203. [PMID: 29432835 DOI: 10.1016/j.fct.2018.02.022] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 01/18/2018] [Accepted: 02/07/2018] [Indexed: 12/14/2022]
Abstract
Iron is a life-supporting micronutrient that is required in the human diet, and is essential for maintaining physiological homeostasis. Properly harnessing a redox-active metal such as iron is a great challenge for cells and organisms because an excess of highly reactive iron catalyzes the formation of reactive oxygen species and can lead to cell and tissue damage. Quercetin is a typical flavonoid that is commonly found in fruits and vegetables and has versatile biological effects. From a classical viewpoint, owing to its unique chemical characteristics, quercetin has long been associated with iron metabolism only in the context of its iron-chelating and ROS-scavenging activities. However, within the field of human iron biology, expanding concepts of the roles of quercetin are flourishing, and great strides are being made in understanding the interactions between quercetin and iron. This progress highlights the varied roles of quercetin in iron metabolism, which involve much more than iron chelation alone. A review of these studies provides an ideal context to summarize recent progress and discuss compelling evidence for therapeutic opportunities that could arise from a better understanding of the underlying mechanisms.
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Affiliation(s)
- Lin Xiao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Gang Luo
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yuhan Tang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Ping Yao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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16
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Gao B, Sun Y, Miao Y, Min H, Xu L, Huang C. Facile Preparation of Highly Luminescent Nitrogen-Doped Carbonaceous Nanospheres and Potential Application in Intracellular Imaging of Quercetin. Aust J Chem 2018. [DOI: 10.1071/ch18370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Highly luminescent nitrogen-doped carbonaceous nanospheres (LNCNs) were synthesized by a one-pot hydrothermal reaction of β-cyclodextrin (β-CD) and branched polyethylenimine (BPEI). Both the N-doping and amino-functionalisation of LNCNs were achieved simultaneously. The prepared LNCNs display excellent properties such as high physical and chemical stability, excitation wavelength-independent emission, and high photoluminescence quantum yields. Importantly, the LNCNs exhibit a quenching of photoluminescence in the presence of quercetin (Qc) based on the simple static quenching mechanism, making it possible to quantify concentrations from 0.5 to 80 μg mL−1 with a detection limit of 0.21 μg mL−1. Furthermore, the LNCNs probe was further used for imaging Qc in living cells.
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17
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Genistein Binding to Copper(II)-Solvent Dependence and Effects on Radical Scavenging. Molecules 2017; 22:molecules22101757. [PMID: 29057848 PMCID: PMC6151749 DOI: 10.3390/molecules22101757] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 10/16/2017] [Indexed: 11/17/2022] Open
Abstract
Genistein, but not daidzein, binds to copper(II) with a 1:2 stoichiometry in ethanol and with a 1:1 stoichiometry in methanol, indicating chelation by the 5-phenol and the 4-keto group of the isoflavonoid as demonstrated by the Jobs method and UV-visible absorption spectroscopy. In ethanol, the stability constants had the value 1.12 × 1011 L²∙mol-2 for the 1:2 complex and in methanol 6.0 × 10⁵ L∙mol-1 for the 1:1 complex at 25 °C. Binding was not detected in water, as confirmed by an upper limit for the 1:1 stability constant of K = 5 mol-1 L as calculated from the difference in solvation free energy of copper(II) between methanol and the more polar water. Solvent molecules compete with genistein as demonstrated in methanol where binding stoichiometry changes from 1:2 to 1:1 compared to ethanol and methanol/chloroform (7/3, v/v). Genistein binding to copper(II) increases the scavenging rate of the stable, neutral 2,2-diphenyl-1-picrylhydrazyl radical by more than a factor of four, while only small effects were seen for the short-lived but more oxidizing β-carotene radical cation using laser flash photolysis. The increased efficiency of coordinated genistein is concluded to depend on kinetic rather than on thermodynamic factors, as confirmed by the small change in reduction potential of -0.016 V detected by cyclic voltammetry upon binding of genistein to copper(II) in methanol/chloroform solutions.
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18
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Woźnicka E, Zapała L, Pieniążek E, Kosińska M, Ciszkowicz E, Lecka-Szlachta K, Pusz J, Maciołek U, Dronka J. Synthesis, characterization and antibacterial studies of Tm(III), Yb(III) and Lu(III) complexes of morin. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1291935] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Elżbieta Woźnicka
- Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Lidia Zapała
- Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Elżbieta Pieniążek
- Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Małgorzata Kosińska
- Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Ewa Ciszkowicz
- Faculty of Chemistry, Department of Biochemistry and Biotechnology, Rzeszow University of Technology, Rzeszow, Poland
| | - Katarzyna Lecka-Szlachta
- Faculty of Chemistry, Department of Biochemistry and Biotechnology, Rzeszow University of Technology, Rzeszow, Poland
| | - Janusz Pusz
- Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Urszula Maciołek
- Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Janusz Dronka
- Faculty of Mathematics and Applied Physics, Rzeszow University of Technology, Rzeszow, Poland
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19
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Naringenin causes ASK1-induced apoptosis via reactive oxygen species in human pancreatic cancer cells. Food Chem Toxicol 2017; 99:1-8. [DOI: 10.1016/j.fct.2016.11.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 10/07/2016] [Accepted: 11/07/2016] [Indexed: 11/21/2022]
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20
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The Combined Application of the Caco-2 Cell Bioassay Coupled with In Vivo (Gallus gallus) Feeding Trial Represents an Effective Approach to Predicting Fe Bioavailability in Humans. Nutrients 2016; 8:nu8110732. [PMID: 27869705 PMCID: PMC5133116 DOI: 10.3390/nu8110732] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 11/09/2016] [Indexed: 12/28/2022] Open
Abstract
Research methods that predict Fe bioavailability for humans can be extremely useful in evaluating food fortification strategies, developing Fe-biofortified enhanced staple food crops and assessing the Fe bioavailability of meal plans that include such crops. In this review, research from four recent poultry (Gallus gallus) feeding trials coupled with in vitro analyses of Fe-biofortified crops will be compared to the parallel human efficacy studies which used the same varieties and harvests of the Fe-biofortified crops. Similar to the human studies, these trials were aimed to assess the potential effects of regular consumption of these enhanced staple crops on maintenance or improvement of iron status. The results demonstrate a strong agreement between the in vitro/in vivo screening approach and the parallel human studies. These observations therefore indicate that the in vitro/Caco-2 cell and Gallus gallus models can be integral tools to develop varieties of staple food crops and predict their effect on iron status in humans. The cost-effectiveness of this approach also means that it can be used to monitor the nutritional stability of the Fe-biofortified crop once a variety has released and integrated into the food system. These screening tools therefore represent a significant advancement to the field for crop development and can be applied to ensure the sustainability of the biofortification approach.
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21
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de Oliveira MR, Nabavi SM, Braidy N, Setzer WN, Ahmed T, Nabavi SF. Quercetin and the mitochondria: A mechanistic view. Biotechnol Adv 2015; 34:532-549. [PMID: 26740171 DOI: 10.1016/j.biotechadv.2015.12.014] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/24/2015] [Accepted: 12/26/2015] [Indexed: 12/24/2022]
Abstract
Quercetin is an important flavonoid that is ubiquitously present in the diet in a variety of fruits and vegetables. It has been traditionally viewed as a potent antioxidant and anti-inflammatory molecule. However, recent studies have suggested that quercetin may exert its beneficial effects independent of its free radical-scavenging properties. Attention has been placed on the effect of quercetin on an array of mitochondrial processes. Quercetin is now recognized as a phytochemical that can modulate pathways associated with mitochondrial biogenesis, mitochondrial membrane potential, oxidative respiration and ATP anabolism, intra-mitochondrial redox status, and subsequently, mitochondria-induced apoptosis. The present review evaluates recent evidence on the ability of quercetin to interact with the abovementioned pathways, and critically analyses how, such interactions can exert protection against mitochondrial damage in response to toxicity induced by several exogenously and endogenously-produced cellular stressors, and oxidative stress in particular.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Department of Chemistry, ICET, Federal University of Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, CEP 78060-900, Cuiabá, MT, Brazil.
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Nady Braidy
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Australia
| | - William N Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
| | - Touqeer Ahmed
- Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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22
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Determination of pentahydroxyflavones using coated chitosan multi-wall carbon nanotubes and an ionic liquid glassy carbon electrode by adsorption stripping voltammetry (AdSV). J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Tako E, Reed S, Anandaraman A, Beebe SE, Hart JJ, Glahn RP. Studies of Cream Seeded Carioca Beans (Phaseolus vulgaris L.) from a Rwandan Efficacy Trial: In Vitro and In Vivo Screening Tools Reflect Human Studies and Predict Beneficial Results from Iron Biofortified Beans. PLoS One 2015; 10:e0138479. [PMID: 26381264 PMCID: PMC4575050 DOI: 10.1371/journal.pone.0138479] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 08/29/2015] [Indexed: 11/18/2022] Open
Abstract
Iron (Fe) deficiency is a highly prevalent micronutrient insufficiency predominantly caused by a lack of bioavailable Fe from the diet. The consumption of beans as a major food crop in some populations suffering from Fe deficiency is relatively high. Therefore, our objective was to determine whether a biofortified variety of cream seeded carioca bean (Phaseolus vulgaris L.) could provide more bioavailable-Fe than a standard variety using in-vivo (broiler chicken, Gallus gallus) and in-vitro (Caco-2 cell) models. Studies were conducted under conditions designed to mimic the actual human feeding protocol. Two carioca-beans, a standard (G4825; 58 μg Fe/g) and a biofortified (SMC; 106 μg Fe/g), were utilized. Diets were formulated to meet the nutrient requirements of Gallus gallus except for Fe (33.7 and 48.7 μg Fe/g, standard and biofortified diets, respectively). In-vitro observations indicated that more bioavailable-Fe was present in the biofortified beans and diet (P<0.05). In-vivo, improvements in Fe-status were observed in the biofortified bean treatment, as indicated by the increased total-body-Hemoglobin-Fe, and hepatic Fe-concentration (P<0.05). Also, DMT-1 mRNA-expression was increased in the standard bean treatment (P<0.05), indicating an upregulation of absorption to compensate for less bioavailable-Fe. These results demonstrate that the biofortified beans provided more bioavailable Fe; however, the in vitro results revealed that ferritin formation values were relatively low. Such observations are indicative of the presence of high levels of polyphenols and phytate that inhibit Fe absorption. Indeed, we identified higher levels of phytate and quercetin 3-glucoside in the Fe biofortified bean variety. Our results indicate that the biofortified bean line was able to moderately improve Fe-status, and that concurrent increase in the concentration of phytate and polyphenols in beans may limit the benefit of increased Fe-concentration. Therefore, specific targeting of such compounds during the breeding process may yield improved dietary Fe-bioavailability. Our findings are in agreement with the human efficacy trial that demonstrated that the biofortified carioca beans improved the Fe-status of Rwandan women. We suggest the utilization of these in vitro and in vivo screening tools to guide studies aimed to develop and evaluate biofortified staple food crops. This approach has the potential to more effectively utilize research funds and provides a means to monitor the nutritional quality of the Fe-biofortified crops once released to farmers.
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Affiliation(s)
- Elad Tako
- USDA-ARS Robert W. Holley Center for Agriculture & Health, Cornell University, Ithaca, NY, 14853, United States of America
| | - Spenser Reed
- USDA-ARS Robert W. Holley Center for Agriculture & Health, Cornell University, Ithaca, NY, 14853, United States of America
| | - Amrutha Anandaraman
- Department of Food Science, Cornell University, Ithaca, NY, 14853, United States of America
| | - Steve E. Beebe
- CIAT- International Center for Tropical Agriculture, Cali, 6713, Colombia
| | - Jonathan J. Hart
- USDA-ARS Robert W. Holley Center for Agriculture & Health, Cornell University, Ithaca, NY, 14853, United States of America
| | - Raymond P. Glahn
- USDA-ARS Robert W. Holley Center for Agriculture & Health, Cornell University, Ithaca, NY, 14853, United States of America
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24
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Kasprzak MM, Erxleben A, Ochocki J. Properties and applications of flavonoid metal complexes. RSC Adv 2015. [DOI: 10.1039/c5ra05069c] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Flavonoid metal complexes have a wide spectrum of activities as well as potential and actual applications.
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Affiliation(s)
- Maria M. Kasprzak
- Department of Bioinorganic Chemistry
- Medical University of Lodz
- Lodz
- Poland
| | - Andrea Erxleben
- School of Chemistry
- National University of Ireland
- Galway
- Ireland
| | - Justyn Ochocki
- Department of Bioinorganic Chemistry
- Medical University of Lodz
- Lodz
- Poland
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25
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Zou Y, Yan F, Zheng T, Shi D, Sun F, Yang N, Chen L. Highly luminescent organosilane-functionalized carbon dots as a nanosensor for sensitive and selective detection of quercetin in aqueous solution. Talanta 2014; 135:145-8. [PMID: 25640138 DOI: 10.1016/j.talanta.2014.12.029] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 12/19/2014] [Accepted: 12/20/2014] [Indexed: 10/24/2022]
Abstract
The organosilane-functionalized carbon dots (SiCDs) were synthesized using citric acid with N-(b-aminoethyl)-g-aminopropyl methyldimethoxy silane (AEAPMS). The as-synthesized SiCDs were characterized by IR, TEM, XPS, NMR and fluorescence. The SiCDs showed a strong emission at 455 nm with excitation at 365 nm. The SiCDs exhibited analytical potential as sensing probes for quercetin (QCT) determination. pH effect, temperature effect, interferences, and analytical performance of the method were investigated. It suggested that SiCDs exhibited high sensitivity and selectivity toward QCT: the linear ranges of SiCDs were estimated to be 0-40 μM while the limit of detection (LOD) was calculated to be 79 nM.
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Affiliation(s)
- Yu Zou
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Fanyong Yan
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China.
| | - Tancheng Zheng
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Dechao Shi
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Fengzhan Sun
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Ning Yang
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Li Chen
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China
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Syntheses, crystal structures and antioxidant study of Zn(II) complexes with morin-5′-sulfonic acid (MSA). J Inorg Biochem 2014; 141:180-187. [DOI: 10.1016/j.jinorgbio.2014.09.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/09/2014] [Accepted: 09/09/2014] [Indexed: 11/20/2022]
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27
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Nkhili E, Loonis M, Mihai S, El Hajji H, Dangles O. Reactivity of food phenols with iron and copper ions: binding, dioxygen activation and oxidation mechanisms. Food Funct 2014; 5:1186-202. [PMID: 24700074 DOI: 10.1039/c4fo00007b] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In this work, the affinity of common dietary phenols (gallic acid, caffeic acid, catechin, and rutin) for iron and copper ions was quantitatively investigated in neutral phosphate buffer as well as the reactivity of the complexes toward dioxygen. Contrasting behaviors were observed: because of the competing phosphate ions, Fe(III) binding is much slower than Fe(II) binding, which is rapidly followed by autoxidation of Fe(II) into Fe(III). With both ions, O2 consumption and H2O2 production are modest and the phenolic ligands are only slowly oxidized. By contrast, metal-phenol binding is fast with both Cu(I) and Cu(II). With Cu(I), O2 consumption and H2O2 production are very significant and the phenolic ligands are rapidly oxidized into a complex mixture of oligomers. The corresponding mechanism with Cu(II) is hampered by the preliminary rate-determining step of Cu(II) reduction by the phenols. The consequences of these findings for the stability and antioxidant activity of plant phenols are discussed.
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28
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Tako E, Beebe SE, Reed S, Hart JJ, Glahn RP. Polyphenolic compounds appear to limit the nutritional benefit of biofortified higher iron black bean (Phaseolus vulgaris L.). Nutr J 2014; 13:28. [PMID: 24669764 PMCID: PMC3976557 DOI: 10.1186/1475-2891-13-28] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 03/24/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Our objective was to determine if a biofortified variety of black bean can provide more bioavailable-iron (Fe) than a standard variety. Two lines of black beans (Phaseolus-vulgaris L.), a standard (DOR500; 59μg Fe/g) and biofortified (MIB465; 88μg Fe/g) were used. The DOR500 is a common commercial variety, and the MIB465 is a line developed for higher-Fe content. Given the high prevalence of Fe-deficiency anemia worldwide, it is important to determine if Fe-biofortified black beans can provide more absorbable-Fe. METHODS Black bean based diets were formulated to meet the nutrient requirements for the broiler (Gallus-gallus) except for Fe (dietary Fe-concentrations were 39.4±0.2 and 52.9±0.9 mg/kg diet, standard vs. biofortified, respectively). Birds (n=14) were fed the diets for 6-weeks. Hemoglobin-(Hb), liver-ferritin and Fe-related transporter/enzyme gene-expression were measured. Hemoglobin-maintenance-efficiency and total-body-Hb-Fe values were used to estimate Fe-bioavailability. RESULTS Hemoglobin-maintenance-efficiency values were higher (P<0.05) in the group consuming the standard-Fe beans on days 14, 21 and 28; indicating a compensatory response to lower dietary-Fe. Final total-Hb-Fe body content was higher in the biofortified vs. the standard group (26.6±0.9 and 24.4±0.8 mg, respectively; P<0.05). There were no differences in liver-ferritin or in expression of DMT-1, Dcyt-B, and ferroportin. In-vitro Fe-bioavailability assessment indicated very low Fe-bioavailability from both diets and between the two bean varieties (P>0.05). Such extremely-low in-vitro Fe-bioavailability measurement is indicative of the presence of high levels of polyphenolic-compounds that may inhibit Fe-absorption. High levels of these compounds would be expected in the black bean seed-coats. CONCLUSIONS The parameters of Fe-status measured in this study indicate that only a minor increase in absorbable-Fe was achieved with the higher-Fe beans. The results also raise the possibility that breeding for increased Fe-concentration elevated the levels of polyphenolic-compounds that can reduce bean Fe-bioavailability, although the higher levels of polyphenolics in the higher-Fe beans may simply be coincidental or an environmental effect. Regardless, Fe-biofortified beans remain a promising vehicle for increasing intakes of bioavailable-Fe in human populations that consume high levels of these beans as a dietary staple, and the bean polyphenol profile must be further evaluated and modified if possible in order to improve the nutritional quality of higher-Fe beans.
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Affiliation(s)
- Elad Tako
- USDA/ARS, Robert W, Holley Center for Agriculture and Health, Cornell University, Ithaca, NY 14853, USA.
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Yang AH, Shi XY, Li X, Li FF, Zhang QQ, Jiang SX, Cui JZ, Gao HL. Spectroscopic and electrochemical studies on the evaluation of the radical scavenging activities of luteolin by chelating iron. RSC Adv 2014. [DOI: 10.1039/c4ra01396d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Kreitman GY, Cantu A, Waterhouse AL, Elias RJ. Effect of metal chelators on the oxidative stability of model wine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:9480-9487. [PMID: 24001152 DOI: 10.1021/jf4024504] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Oxidation is a major problem with respect to wine quality, and winemakers have few tools at their disposal to control it. In this study, the effect of exogenous Fe(II) (bipyridine; Ferrozine) and Fe(III) chelators (ethylenediaminetetraacetic acid, EDTA; phytic acid) on nonenzymatic wine oxidation was examined. The ability of these chelators to affect the formation of 1-hydroxyethyl radicals (1-HER) and acetaldehyde was measured using a spin trapping technique with electron paramagnetic resonance (EPR) and by HPLC-PDA, respectively. The chelators were then investigated for their ability to prevent the oxidative loss of an important aroma-active thiol, 3-mercaptohexan-1-ol (3MH). The Fe(II)-specific chelators were more effective than the Fe(III) chelators with respect to 1-HER inhibition during the early stages of oxidation and significantly reduced oxidation markers compared to a control during the study. However, although the addition of Fe(III) chelators was less effective or even showed an initial pro-oxidant activity, the Fe(III) chelators proved to be more effective antioxidants compared to Fe(II) chelators after 8 days of accelerated oxidation. In addition, it is shown for the first time that Fe(II) and Fe(III) chelators can significantly inhibit the oxidative loss of 3MH in model wine.
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Affiliation(s)
- Gal Y Kreitman
- Department of Food Science, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
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Nasibi M, Zaarei D, Rashed G, Ghasemi E. CHAMOMILE (Matricaria recutita) EXTRACT AS A CORROSION INHIBITOR FOR MILD STEEL IN HYDROCHLORIC ACID SOLUTION. CHEM ENG COMMUN 2013. [DOI: 10.1080/00986445.2012.709475] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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32
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Jamali AA, Tavakoli A, Ezzati Nazhad Dolatabadi J. Analytical overview of DNA interaction with Morin and its metal complexes. Eur Food Res Technol 2012. [DOI: 10.1007/s00217-012-1778-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Panhwar QK, Memon S. Synthesis and properties of zirconium(IV) and molybdate(II) morin complexes. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.668617] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Qadeer K. Panhwar
- a Dr. M.A. Kazi Institute of Chemistry, University of Sindh , Jamshoro , Pakistan
- b National Center of Excellence in Analytical Chemistry, University of Sindh , Jamshoro 76080 , Pakistan
| | - Shahabuddin Memon
- b National Center of Excellence in Analytical Chemistry, University of Sindh , Jamshoro 76080 , Pakistan
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1H, 13C MAS NMR and DFT GIAO study of quercetin and its complex with Al(III) in solid state. J Inorg Biochem 2012; 110:27-35. [PMID: 22459171 DOI: 10.1016/j.jinorgbio.2012.02.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 01/19/2012] [Accepted: 02/13/2012] [Indexed: 11/20/2022]
Abstract
Quercetin (Q) as a pentahydroxy flavonoid, has three possible chelating sites competing in complexation processes. (1)H and (13)C MAS NMR spectra were recorded for solid quercetin and its Al(III) complex (AlQ). (1)H MAS spectrum of quercetin shows a broad resonance at ca. 12 ppm that confirms the existence of intramolecular C5-OH … O=C4 hydrogen bond. Such a signal is absent in the spectrum of AlQ, which is in accordance with other spectroscopic data and the suggested model for the solid-state structure of the complex. DFT GIAO calculations were used to verify the experimental (13)C CPMAS NMR data and to suggest the best model structure for the complex AlQ. The calculated shielding constants for different conformers of isolated quercetin molecules, quercetin trimer as taken from the X-ray data, and different model structures for possible Al(III) complexes were compared with the (13)C CPMAS NMR experimental values. The results demonstrate the importance of intermolecular interactions when dealing with structures in solid state and the successful application of the combined DFT GIAO and (13)C CPMAS NMR approach. All data confirm that the chelating site of Q in the solid complex AlQ involves the deprotonated C5-OH and the C4=O groups at ring C, in contrast to the available studies performed in solution.
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Verdan AM, Wang HC, García CR, Henry WP, Brumaghim JL. Iron binding of 3-hydroxychromone, 5-hydroxychromone, and sulfonated morin: Implications for the antioxidant activity of flavonols with competing metal binding sites. J Inorg Biochem 2011; 105:1314-22. [DOI: 10.1016/j.jinorgbio.2011.07.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Revised: 07/19/2011] [Accepted: 07/20/2011] [Indexed: 10/17/2022]
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Jabbari M, Gharib F. Solute-Solvent Interaction Effects on Protonation Equilibrium of Some Water-Insoluble Flavonoids. J SOLUTION CHEM 2011. [DOI: 10.1007/s10953-011-9667-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Almandoz MC, Dávila YA, Sancho MI, Gasull EI, Blanco SE. Spectrophotometric investigation of the complexation mechanism of Al(III) by 2,4-dihydroxy-acetophenone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:51-58. [PMID: 20547097 DOI: 10.1016/j.saa.2010.04.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Accepted: 04/26/2010] [Indexed: 05/29/2023]
Abstract
The complexation of Al(III) by 2,4(OH)(2)-acetophenone in methanol and ethanol was investigated using spectroscopic methods (UV-vis) and theoretical procedures (DFT) in order to determine its stoichiometry and stability constant and to analyze the effect of temperature, ionic strength and solvent on the reaction rate. The stoichiometric composition of the complex is 1:1 and the stability constant in methanol is greater than in ethanol. The parameters obtained by the Arrhenius equation and the transition-state theory permitted to explain why the reaction proceeds more rapidly in EtOH. The reaction is favoured when the ionic strength and the reaction medium permittivity decrease. Taking into account the kinetic results and the theoretical calculations performed, a reaction mechanism in three steps is proposed that considers the interaction between ionic species of opposite unitary charge to generate the metal complex. In the formation of the complex, the aluminium atom interacts forming a covalent bond with the oxygen atom of the hydroxyl group of the ligand and its carbonyl group by means of a strong Coulombic interaction.
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Affiliation(s)
- M C Almandoz
- Area de Química-Física, Facultad de Química, Bioquímica y Farmacia, Instituto Multidisciplinario de Investigaciones Biológicas, Universidad Nacional de San Luis, Chacabuco y Pedernera, San Luis 5700, Argentina
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Pękal A, Biesaga M, Pyrzynska K. Interaction of quercetin with copper ions: complexation, oxidation and reactivity towards radicals. Biometals 2010; 24:41-9. [PMID: 20835752 DOI: 10.1007/s10534-010-9372-7] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Accepted: 08/31/2010] [Indexed: 01/11/2023]
Abstract
Quercetin, one of the most common dietary flavonols, was investigated in the presence of Cu(II) ions in methanolic solution in order to obtain some explanation on the mechanism interaction and its action against free radical-mediated damage. The spectroscopic studies (UV-VIS, IR, ESI-MS) were used to assess the extent to which it undergo complex formation through chelation or modification through oxidation. The reaction of quercetin with Cu(II) resulted in the formation of 1:1 metal-ligand complex (λ(max) = 436 nm) through the carbonyl oxygen and 3-OH group in C ring. Then quercetin is oxidized to the benzoquinone type products. The addition of EDTA destroyed the complex but did not regenerate the whole original spectrum of quercetin. From the other hand, the presence of EDTA inhibits formation of copper-quercetin complex and quercetin oxidation. The antioxidant activity of the Q + Cu solutions was evaluated by using 2,2-diphenyl-1-picrylhydrazyl radical (DPPH∙) radical scavenging method and from an electrochemical point of view. The complex is much more effective as free radical scaveninger than the free flavonoid.
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Affiliation(s)
- Anna Pękal
- Department of Chemistry, University of Warsaw, Warsaw, Poland
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Naik PN, Chimatadar SA, Nandibewoor ST. Oxidation of diclofenac sodium by diperiodatoargantate(III) in aqueous alkaline medium and its determination in urine and blood by kinetic methods. INT J CHEM KINET 2010. [DOI: 10.1002/kin.20486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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Zeng LQ, Liu JM, Li FM, Huang XM, Lin LP, Wang XX, Zhang LH, Lin CQ. Sensitive Phosphorimetric Determination of Bumetanide in Human Urine with Its Inhibition Effect on the Formation of [Fe-morin] 3+ Complex. J Fluoresc 2010; 20:923-31. [DOI: 10.1007/s10895-010-0638-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Accepted: 03/16/2010] [Indexed: 10/19/2022]
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41
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Syntheses, characterization and antitumor activities of transition metal complexes with isoflavone. J Inorg Biochem 2010; 104:379-84. [DOI: 10.1016/j.jinorgbio.2009.11.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Revised: 11/17/2009] [Accepted: 11/18/2009] [Indexed: 12/18/2022]
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42
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Panhwar QK, Memon S, Bhanger M. Synthesis, characterization, spectroscopic and antioxidation studies of Cu(II)–morin complex. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2009.12.037] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Grubel K, Rudzka K, Arif AM, Klotz KL, Halfen JA, Berreau LM. Synthesis, Characterization, and Ligand Exchange Reactivity of a Series of First Row Divalent Metal 3-Hydroxyflavonolate Complexes. Inorg Chem 2009; 49:82-96. [DOI: 10.1021/ic901405h] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Katarzyna Grubel
- Department of Chemistry & Biochemistry, Utah State University, Logan, Utah 84322-0300
| | - Katarzyna Rudzka
- Department of Chemistry & Biochemistry, Utah State University, Logan, Utah 84322-0300
| | - Atta M. Arif
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850
| | - Katie L. Klotz
- Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702
| | - Jason A. Halfen
- Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702
| | - Lisa M. Berreau
- Department of Chemistry & Biochemistry, Utah State University, Logan, Utah 84322-0300
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Khajeh M, Kaykhaii M, Hashemi H, Mirmoghaddam M. Imprinted polymer particles for iron uptake: Synthesis, characterization and analytical applications. POLYMER SCIENCE SERIES B 2009. [DOI: 10.1134/s1560090409090048] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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45
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A Review of the Antioxidant Mechanisms of Polyphenol Compounds Related to Iron Binding. Cell Biochem Biophys 2009; 53:75-100. [DOI: 10.1007/s12013-009-9043-x] [Citation(s) in RCA: 633] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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46
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Ohnishi H, Iwanaga S, Kawazoe K, Ishizawa K, Orino S, Tomita S, Tsuchiya K, Kanematsu Y, Harada N, Mori K, Tsuchihashi T, Ishikawa Y, Tamaki T. Effect of iron-quercetin complex on reduction of nitrite in in vitro and in vivo systems. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:10092-10098. [PMID: 18831560 DOI: 10.1021/jf801010j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study investigated whether reducing agents such as quercetin and iron(II) facilitate formation of nitric oxide (NO) gas from orally ingested nitrite in an vivo study. When 3 mg/kg Na (15)NO2 was orally administered to rats with or without iron(II) or quercetin, Hb (15)NO, which is indicative of systemic (15)NO, was detected in the blood, with the maximum blood concentration of Hb (15)NO at 15 min after nitrite or nitrite plus quercetin treatment, whereas after administration of nitrite plus iron(II) or nitrite plus iron(II) and quercetin, the time was shortened to 10 min. Interestingly, iron(II), quercetin, or iron(II) plus quercetin did not affect the total amount of Hb (15)NO generated from orally administered Na (15)NO2. However, the systemic nitrite concentration was significantly decreased in the presence of iron(II) or iron(II) plus quercetin. These results may indicate that iron(II) is critical to the generation of NO gas from nitrite, whereas quercetin contributed little under the in vivo experimental conditions.
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Affiliation(s)
- Hideki Ohnishi
- Department of Pharmacology, The University of Tokushima Graduate School, 1-78-1 Sho-machi, Tokushima 770-8505, Japan
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Ryan P, Hynes MJ. The kinetics and mechanisms of the reactions of iron(III) with naringenin, hesperetin, 3-hydroxychromone and 3-hydroxyflavone. A comparison of the coordination power of 3-hydroxychromone and 5-hydroxychromone. J COORD CHEM 2008. [DOI: 10.1080/00958970802148904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Paul Ryan
- a School of Chemistry , National University of Ireland , Galway, Ireland
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48
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Binbuga N, Schultz TP, Henry WP. Intra- and intermolecular hydrogen bonding in 3-hydroxy- and 5-hydroxychromone. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.100] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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49
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Reaction of Cd(II)–Morin with dsDNA for biosensing of ssDNA oligomers with complementary, GCE-immobilized ssDNA. Bioelectrochemistry 2008; 73:64-9. [DOI: 10.1016/j.bioelechem.2008.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2008] [Revised: 04/17/2008] [Accepted: 04/21/2008] [Indexed: 01/09/2023]
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