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Diao Z, Yu H, Wu Y, Sun Y, Tang H, Wang M, Li N, Ge H, Sun J, Gu HF. Identification of the main flavonoids of Abelmoschus manihot (L.) medik and their metabolites in the treatment of diabetic nephropathy. Front Pharmacol 2024; 14:1290868. [PMID: 38313075 PMCID: PMC10836608 DOI: 10.3389/fphar.2023.1290868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/19/2023] [Indexed: 02/06/2024] Open
Abstract
Introduction: Huangkui capsule (HKC) is made from the ethanol extract of Abelmoschus manihot (L.) Medik [Malvaceae; abelmoschi corolla] and received approval from the China Food and Drug Administration (Z19990040) in 1999. Currently, HKC is used for treatment of the patients with diabetic nephropathy (DN) in China. The bioactive chemical constituents in HKC are total flavonoids of A. manihot (L.) Medik (TFA). The present study aims to identify the primary flavonoid metabolites in HKC and TFA and their metabolism fates in db/db mice, the animal model for the study of type 2 diabetes and DN. Methods: HKC (0.84 g/kg/d) and TFA (0.076 g/kg/d) or vehicle were respectively administered daily via oral gavage in db/db mice for 4 weeks. The metabolism fate of the main metabolites of HKC in serum, liver, kidney, heart, jejunum, colon, jejunal contents, colonic contents, and urine of db/db mice were analyzed with a comprehensive metabolite identification strategy. Results and Discussion: In db/db mice administered with HKC and TFA, 7 flavonoid prototypes and 38 metabolites were identified. The related metabolic pathways at Phases I and II reactions included dehydroxylation, deglycosylation, hydrogenation, methylation, glucuronidation, sulphation, and corresponding recombined reactions. Quercetin, isorhamnetin, quercetin sulphate, quercetin monoglucuronide, and isorhamnetin monoglucuronide presented a high exposure in the serum and kidney of db/db mice. Thereby, the present study provides a pharmacodynamic substance basis for better understanding the mechanism of A. manihot (L.) Medik for medication of DN.
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Affiliation(s)
- Zhipeng Diao
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Hongmei Yu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yapeng Wu
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Yuanbo Sun
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Haitao Tang
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Mei Wang
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Nan Li
- Department of Endocrinology, Jiangsu Province Hospital of Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Haitao Ge
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Jianguo Sun
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Harvest F Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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Lněničková K, Vrba J, Kosina P, Papoušková B, Mekadim C, Mrázek J, Sova M, Sovová E, Valentová K, Křen V, Kouřilová P, Vrbková J, Ulrichová J. Metabolic profiling of silymarin constituents in urine and feces of healthy volunteers: A 90-day study. J Funct Foods 2023. [DOI: 10.1016/j.jff.2022.105391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Thuan NH, Shrestha A, Trung NT, Tatipamula VB, Van Cuong D, Canh NX, Van Giang N, Kim TS, Sohng JK, Dhakal D. Advances in biochemistry and the biotechnological production of taxifolin and its derivatives. Biotechnol Appl Biochem 2022; 69:848-861. [PMID: 33797804 DOI: 10.1002/bab.2156] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/20/2021] [Indexed: 01/31/2023]
Abstract
Taxifolin (dihydroquercetin) and its derivatives are medicinally important flavanonols with a wide distribution in plants. These compounds have been isolated from various plants, such as milk thistle, onions, french maritime, and tamarind. In general, they are commercially generated in semisynthetic forms. Taxifolin and related compounds are biosynthesized via the phenylpropanoid pathway, and most of the biosynthetic steps have been functionally characterized. The knowledge gained through the detailed investigation of their biosynthesis has provided the foundation for the reconstruction of biosynthetic pathways. Plant- and microbial-based platforms are utilized for the expression of such pathways for generating taxifolin-related compounds, either by whole-cell biotransformation or through reconfiguration of the genetic circuits. In this review, we summarize recent advances in the biotechnological production of taxifolin and its derivatives.
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Affiliation(s)
- Nguyen Huy Thuan
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Anil Shrestha
- Combinatorial Biosynthesis National Research Laboratory, Ewha Womans University, Seoul, Republic of Korea
| | - Nguyen Thanh Trung
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | | | - Duong Van Cuong
- Faculty of Biotechnology and Food Technology, Thainguyen University of Agriculture and Forestry, Thainguyen, Vietnam
| | - Nguyen Xuan Canh
- Faculty of Biotechnology, Vietnam National University of Agriculture, Gialam, Hanoi, Vietnam
| | - Nguyen Van Giang
- Faculty of Biotechnology, Vietnam National University of Agriculture, Gialam, Hanoi, Vietnam
| | - Tae-Su Kim
- Department of Pharmaceutical Engineering and Biotechnology, SunMoon University, Asan-si, Chungnam, Republic of Korea
| | - Jae Kyung Sohng
- Department of Pharmaceutical Engineering and Biotechnology, SunMoon University, Asan-si, Chungnam, Republic of Korea
| | - Dipesh Dhakal
- Department of Medicinal Chemistry, University of Florida, Gainesville, Florida, USA
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A Comprehensive View on the Quercetin Impact on Colorectal Cancer. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27061873. [PMID: 35335239 PMCID: PMC8953922 DOI: 10.3390/molecules27061873] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/08/2022] [Accepted: 03/11/2022] [Indexed: 12/14/2022]
Abstract
Colorectal cancer (CRC) represents the third type of cancer in incidence and second in mortality worldwide, with the newly diagnosed case number on the rise. Among the diagnosed patients, approximately 70% have no hereditary germ-line mutations or family history of pathology, thus being termed sporadic CRC. Diet and environmental factors are to date considered solely responsible for the development of sporadic CRC; therefore; attention should be directed towards the discovery of preventative actions to combat the CRC initiation, promotion, and progression. Quercetin is a polyphenolic flavonoid plant secondary metabolite with a well-characterized antioxidant activity. It has been extensively reported as an anti-carcinogenic agent in the scientific literature, and the modulated targets of quercetin have been also characterized in the context of CRC, mainly in original research publications. In this fairly comprehensive review, we summarize the molecular targets of quercetin reported to date in in vivo and in vitro CRC models, while also giving background information about the signal transduction pathways that it up- and downregulates. Among the most relevant modulated pathways, the Wnt/β-catenin, PI3K/AKT, MAPK/Erk, JNK, or p38, p53, and NF-κB have been described. With this work, we hope to encourage further quests in the elucidation of quercetin anti-carcinogenic activity as single agent, as dietary component, or as pharmaconutrient delivered in the form of plant extracts.
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Uyanga VA, Amevor FK, Liu M, Cui Z, Zhao X, Lin H. Potential Implications of Citrulline and Quercetin on Gut Functioning of Monogastric Animals and Humans: A Comprehensive Review. Nutrients 2021; 13:3782. [PMID: 34836037 PMCID: PMC8621968 DOI: 10.3390/nu13113782] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/18/2021] [Accepted: 10/19/2021] [Indexed: 12/26/2022] Open
Abstract
The importance of gut health in animal welfare and wellbeing is undisputable. The intestinal microbiota plays an essential role in the metabolic, nutritional, physiological, and immunological processes of animals. Therefore, the rapid development of dietary supplements to improve gut functions and homeostasis is imminent. Recent studies have uncovered the beneficial effects of dietary supplements on the immune response, microbiota, gut homeostasis, and intestinal health. The application of citrulline (a functional gut biomarker) and quercetin (a known potent flavonoid) to promote gut functions has gained considerable interest as both bioactive substances possess anti-inflammatory, anti-oxidative, and immunomodulatory properties. Research has demonstrated that both citrulline and quercetin can mediate gut activities by combating disruptions to the intestinal integrity and alterations to the gut microbiota. In addition, citrulline and quercetin play crucial roles in maintaining intestinal immune tolerance and gut health. However, the synergistic benefits which these dietary supplements (citrulline and quercetin) may afford to simultaneously promote gut functions remain to be explored. Therefore, this review summarizes the modulatory effects of citrulline and quercetin on the intestinal integrity and gut microbiota, and further expounds on their potential synergistic roles to attenuate intestinal inflammation and promote gut health.
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Affiliation(s)
- Victoria Anthony Uyanga
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control, Department of Animal Science, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an City 271018, China; (V.A.U.); (M.L.)
- Organization of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi P.O. Box 25305-00100, Kenya;
| | - Felix Kwame Amevor
- Organization of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi P.O. Box 25305-00100, Kenya;
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;
| | - Min Liu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control, Department of Animal Science, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an City 271018, China; (V.A.U.); (M.L.)
| | - Zhifu Cui
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;
| | - Xiaoling Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;
| | - Hai Lin
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control, Department of Animal Science, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an City 271018, China; (V.A.U.); (M.L.)
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Lessigiarska I, Peng Y, Tsakovska I, Alov P, Lagarde N, Jereva D, Villoutreix BO, Nicot AB, Pajeva I, Pencheva T, Miteva MA. Computational Analysis of Chemical Space of Natural Compounds Interacting with Sulfotransferases. Molecules 2021; 26:molecules26216360. [PMID: 34770768 PMCID: PMC8588419 DOI: 10.3390/molecules26216360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 01/04/2023] Open
Abstract
The aim of this study was to investigate the chemical space and interactions of natural compounds with sulfotransferases (SULTs) using ligand- and structure-based in silico methods. An in-house library of natural ligands (hormones, neurotransmitters, plant-derived compounds and their metabolites) reported to interact with SULTs was created. Their chemical structures and properties were compared to those of compounds of non-natural (synthetic) origin, known to interact with SULTs. The natural ligands interacting with SULTs were further compared to other natural products for which interactions with SULTs were not known. Various descriptors of the molecular structures were calculated and analyzed. Statistical methods (ANOVA, PCA, and clustering) were used to explore the chemical space of the studied compounds. Similarity search between the compounds in the different groups was performed with the ROCS software. The interactions with SULTs were additionally analyzed by docking into different experimental and modeled conformations of SULT1A1. Natural products with potentially strong interactions with SULTs were outlined. Our results contribute to a better understanding of chemical space and interactions of natural compounds with SULT enzymes and help to outline new potential ligands of these enzymes.
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Affiliation(s)
- Iglika Lessigiarska
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (I.L.); (I.T.); (P.A.); (D.J.); (I.P.)
| | - Yunhui Peng
- INSERM U1268 “Medicinal Chemistry and Translational Research”, CiTCoM UMR 8038 CNRS—Université de Paris, 75006 Paris, France;
- Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA
| | - Ivanka Tsakovska
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (I.L.); (I.T.); (P.A.); (D.J.); (I.P.)
| | - Petko Alov
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (I.L.); (I.T.); (P.A.); (D.J.); (I.P.)
| | - Nathalie Lagarde
- Laboratoire GBCM, EA7528, Conservatoire National des Arts et Métiers, 2 Rue Conté, Hésam Université, 75003 Paris, France;
| | - Dessislava Jereva
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (I.L.); (I.T.); (P.A.); (D.J.); (I.P.)
| | | | - Arnaud B. Nicot
- INSERM, Nantes Université, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, F-44000 Nantes, France;
| | - Ilza Pajeva
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (I.L.); (I.T.); (P.A.); (D.J.); (I.P.)
| | - Tania Pencheva
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (I.L.); (I.T.); (P.A.); (D.J.); (I.P.)
- Correspondence: (T.P.); (M.A.M.)
| | - Maria A. Miteva
- INSERM U1268 “Medicinal Chemistry and Translational Research”, CiTCoM UMR 8038 CNRS—Université de Paris, 75006 Paris, France;
- Correspondence: (T.P.); (M.A.M.)
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Xia H. Extensive metabolism of flavonoids relevant to their potential efficacy on Alzheimer's disease. Drug Metab Rev 2021; 53:563-591. [PMID: 34491868 DOI: 10.1080/03602532.2021.1977316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Alzheimer's disease (AD) is an age-related neurodegenerative disorder, the incidence of which is climbing with ever-growing aged population, but no cure is hitherto available. The epidemiological studies unveiled that chronic intake of flavonoids was negatively associated with AD risk. Flavonoids, a family of natural polyphenols widely distributed in human daily diets, were readily conjugated by phase II drug metabolizing enzymes after absorption in vivo, and glucuronidation could occur in 1 min following intravenous administration. Recently, as many as 191 metabolites were obtained after intragastric administration of a single flavonoid, indicating that other bioactive metabolites, besides conjugates, might be formed and account for the contradiction between efficacy of flavonoids in human or animal models and low systematic exposure of flavonoid glycosides or aglycones. In this review, metabolism of complete 68 flavonoid monomers potential for AD treatment, grouped in flavonoid O-glycosides, flavonoid aglycones, flavonoid C-glycosides, flavonoid dimers, flavonolignans and prenylated flavonoids according to their common structural elements, respectively, has been systematically retrospected, summarized and discussed, including their unequivocally identified metabolites, metabolic interconversions, metabolic locations, metabolic sites (regio- or stereo-selectivity), primarily involved metabolic enzymes or intestinal bacteria, and interspecies correlations or differences in metabolism, and their bioactive metabolites and the underlying mechanism to reverse AD pathology were also reviewed, providing whole perspective about advances on extensive metabolism of diverse potent flavonoids in vivo and in vitro up to date and aiming at elucidation of mechanism of actions of flavonoids on AD or other central nervous system (CNS) disorders.
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Affiliation(s)
- Hongjun Xia
- Medical College, Yangzhou University, Yangzhou, People's Republic of China
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Yang J, Dong X, Zhen XT, Chen Y, Zheng H, Ye LH, Liu FM, Cao J. Rapid analysis and identification of flavonoid and organic acid metabolites in Hawthorn using an on-line flow injection assisted electrochemical microreactor combined with quadrupole time-of-flight tandem mass spectrometry. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Vrba J, Papoušková B, Kosina P, Lněničková K, Valentová K, Ulrichová J. Identification of Human Sulfotransferases Active towards Silymarin Flavonolignans and Taxifolin. Metabolites 2020; 10:metabo10080329. [PMID: 32806559 PMCID: PMC7465014 DOI: 10.3390/metabo10080329] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/04/2020] [Accepted: 08/10/2020] [Indexed: 12/17/2022] Open
Abstract
Natural phenolic compounds are known to be metabolized by phase II metabolic reactions. In this study, we examined the in vitro sulfation of the main constituents of silymarin, an herbal remedy produced from the fruits of the milk thistle. The study focused on major flavonolignan constituents, including silybin A, silybin B, isosilybin A, isosilybin B, silychristin, and silydianin, as well as the flavonoid taxifolin. Using ultra-high-performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS), individual flavonolignans and taxifolin were found to be sulfated by human liver and human intestinal cytosols. Moreover, experiments with recombinant enzymes revealed that human sulfotransferases (SULTs) 1A1*1, 1A1*2, 1A2, 1A3, 1B1, 1C4, and 1E1 catalyzed the sulfation of all of the tested compounds, with the exception of silydianin, which was not sulfated by SULT1B1 and SULT1C4. The sulfation products detected were monosulfates, of which some of the major ones were identified as silybin A 20-O-sulfate, silybin B 20-O-sulfate, and isosilybin A 20-O-sulfate. Further, we also observed the sulfation of the tested compounds when they were tested in the silymarin mixture. Sulfates of flavonolignans and of taxifolin were produced by incubating silymarin with all of the above SULT enzymes, with human liver and intestinal cytosols, and also with human hepatocytes, even though the spectrum and amount of the sulfates varied among the metabolic models. Considering our results and the expression patterns of human sulfotransferases in metabolic tissues, we conclude that flavonolignans and taxifolin can potentially undergo both intestinal and hepatic sulfation, and that SULTs 1A1, 1A3, 1B1, and 1E1 could be involved in the biotransformation of the constituents of silymarin.
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Affiliation(s)
- Jiří Vrba
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 77515 Olomouc, Czech Republic; (P.K.); (K.L.); (J.U.)
- Correspondence:
| | - Barbora Papoušková
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, 17. Listopadu 12, 77146 Olomouc, Czech Republic;
| | - Pavel Kosina
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 77515 Olomouc, Czech Republic; (P.K.); (K.L.); (J.U.)
| | - Kateřina Lněničková
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 77515 Olomouc, Czech Republic; (P.K.); (K.L.); (J.U.)
| | - Kateřina Valentová
- Laboratory of Biotransformation, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic;
| | - Jitka Ulrichová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 77515 Olomouc, Czech Republic; (P.K.); (K.L.); (J.U.)
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Harbi SM, Hussien RA, Hawasawi I, Alshdoukhi I, Chopra V, Alanazi AN, Butler W, Koroma R, Peters C, Garver DD, Vinson JA. Red Blood Cells and Lipoproteins: Important Reservoirs and Transporters of Polyphenols and Their Metabolites. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7005-7013. [PMID: 32495621 DOI: 10.1021/acs.jafc.0c02601] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Dietary polyphenols are protective for chronic diseases. Their blood transport has not been well investigated. This work examines multiple classes of polyphenols and their interactions with albumin, lipoproteins, and red blood cell (RBC) compartments using four models and determines the % polyphenol in each compartment studied. The RBC alone model showed a dose-response polyphenol association with RBCs. A blood model with flavanones determined the % polyphenol that was inside RBCs and bound to the surface using a new albumin washing procedure. It was shown that RBCs can methylate flavanones. The whole blood model separated the polyphenol into four compartments with the aid of affinity chromatography. More polyphenols were found with albumin and lipoproteins (high-density lipoproteins and low-density lipoproteins) than with RBCs. In the plasma model, the polyphenols associated almost equally between lipoproteins and albumin. RBCs and lipoproteins are shown to be important reservoirs and transporters of polyphenols in blood.
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Affiliation(s)
- Salwa M Harbi
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - Rania A Hussien
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - Intesar Hawasawi
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - Ibtehaj Alshdoukhi
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - Vikram Chopra
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - Amal N Alanazi
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - William Butler
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - Rakia Koroma
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - Colin Peters
- Department of Chemistry, Loyola Science Center, University of Scranton, 204 Monroe Avenue, Scranton, Pennsylvania 18510 United States
| | - Deanne D Garver
- Department of Science, Mathematics and Computer Science,Marywood University, Scranton, Pennsylvania 18509, United States
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Heřmánková E, Zatloukalová M, Biler M, Sokolová R, Bancířová M, Tzakos AG, Křen V, Kuzma M, Trouillas P, Vacek J. Redox properties of individual quercetin moieties. Free Radic Biol Med 2019; 143:240-251. [PMID: 31381971 DOI: 10.1016/j.freeradbiomed.2019.08.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/24/2019] [Accepted: 08/01/2019] [Indexed: 12/21/2022]
Abstract
Quercetin is one of the most prominent and widely studied flavonoids. Its oxidation has been previously investigated only indirectly by comparative analyses of structurally analogous compounds, e.g. dihydroquercetin (taxifolin). To provide direct evidence about the mechanism of quercetin oxidation, we employed selective alkylation procedures for the step-by-step blocking of individual redox active sites, i.e. the catechol, resorcinol and enol C-3 hydroxyls, as represented by newly prepared quercetin derivatives 1-3. Based on the structure-activity relationship (SAR), electrochemical, and computational (density functional theory) studies, we can clearly confirm that quercetin is oxidized in the following steps: the catechol moiety is oxidized first, forming the benzofuranone derivative via intramolecular rearrangement mechanism; therefore the quercetin C-3 hydroxy group cannot be involved in further oxidation reactions or other biochemical processes. The benzofuranone is oxidized subsequently, followed by oxidation of the resorcinol motif to complete the electrochemical cascade of reactions. Derivatization of individual quercetin hydroxyls has a significant effect on its redox behavior, and, importantly, on its antiradical and stability properties, as shown in DPPH/ABTS radical scavenging assays and UV-Vis spectrophotometry, respectively. The SAR data reported here are instrumental for future studies on the oxidation of biologically or technologically important flavonoids and other polyphenols or polyhydroxy substituted aromatics. This is the first complete and direct study mapping redox properties of individual moieties in quercetin structure.
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Affiliation(s)
- Eva Heřmánková
- Institute of Microbiology, Laboratory of Biotransformation, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20, Prague, Czech Republic
| | - Martina Zatloukalová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15, Olomouc, Czech Republic
| | - Michal Biler
- INSERM U1248, Univ. Limoges, 2 rue du Docteur Marcland, 87025, Limoges, France
| | - Romana Sokolová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23, Prague 8, Czech Republic
| | - Martina Bancířová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15, Olomouc, Czech Republic
| | - Andreas G Tzakos
- Department of Chemistry, University of Ioannina, Ioannina, 45110, Greece
| | - Vladimír Křen
- Institute of Microbiology, Laboratory of Biotransformation, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20, Prague, Czech Republic.
| | - Marek Kuzma
- Institute of Microbiology, Laboratory of Biotransformation, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20, Prague, Czech Republic
| | - Patrick Trouillas
- INSERM U1248, Univ. Limoges, 2 rue du Docteur Marcland, 87025, Limoges, France; RCPTM, Palacký University, 17. listopadu 1192/12, Olomouc, Czech Republic
| | - Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, 775 15, Olomouc, Czech Republic.
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12
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Eken H, Cimen O, Cimen FK, Kurnaz E, Yildirim M, Tasova V, Kurt N, Pehlivanoglu K, Onk D, Bilgin AO. Effect of taxifolin on oxidative gastric injury induced by celiac artery ligation in rats. Acta Cir Bras 2019; 34:e201900404. [PMID: 31066786 PMCID: PMC6583928 DOI: 10.1590/s0102-865020190040000004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 03/12/2019] [Indexed: 02/07/2023] Open
Abstract
PURPOSE To examine the effect of taxifolin on I/R induced gastric injury in rats using biochemical and histopatholohical methods. METHODS Eighteen albino Wistar male rats equally grouped as; gastric I/R (I/R), 50 mg/kg taxifolin + gastric I/R (TAX+ I/R) and sham operation applied (SHAM). Ischemia induced for 1 hour, and reperfusion induced for 3 hours. RESULTS Oxidant parameters like, Malondialdehyde (MDA) and Hydroxyguanine (8-OHdG) were higher, whereas total glutathione (tGSH) was lower in the I/R group according to SHAM group, histopathological findings such as marked destruction, edema, and proliferated dilated congested blood vessels were observed severely in the I/R group, whereas there was not any pathological finding except mild dilated congested blood vessels in the TAX+ I/R group. CONCLUSION The taxifolin can be clinically beneficial in the treatment of gastric injury due to I/R procedure.
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Affiliation(s)
- Hüseyin Eken
- Assistant Professor, Department of General Surgery, Faculty of Medicine, Erzincan Binali Yildirim University, Turkey. Scientific, intellectual, conception and design of the study; manuscript preparation
| | - Orhan Cimen
- Assistant Professor, Department of General Surgery, Faculty of Medicine, Erzincan Binali Yildirim University, Turkey. Conception and design of the study, manuscript preparation
| | - Ferda Keskin Cimen
- Assistant Professor, Department of Pathology, Faculty of Medicine, Erzincan Binali Yildirim University, Turkey. Histopathological examinations, manuscript writing
| | - Eray Kurnaz
- MD, Department of General Surgery, Mengücek Gazi Training and Research Hospital, Erzincan, Turkey. Technical procedures, manuscript preparation
| | - Murat Yildirim
- MD, Department of General Surgery, Zile State Hospital, Tokat, Turkey. Technical procedures, manuscript preparation
| | - Volkan Tasova
- MD, Department of General Surgery, Sabuncuoglu Serafettin Training and Research Hospital, Amasya University, Turkey. Technical procedures, manuscript preparation
| | - Nezahat Kurt
- PhD, Department of Biochemistry, Faculty of Medicine, Ataturk University, Erzurum, Turkey. Acquisition, analysis and interpretation of data; technical procedures
| | - Kamil Pehlivanoglu
- Assistant Professor, Department of General Surgery, Faculty of Medicine, Erzincan Binali Yildirim University, Turkey. Manuscript preparation
| | - Didem Onk
- Assistant Professor, Department of Anesthesiology and Reanimation, Faculty of Medicine, Erzincan Binali Yildirim University, Turkey. Technical procedures, critical revision
| | - Asli Ozbek Bilgin
- Assistant Professor, Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yildirim University, Turkey. Statistics analysis, manuscript writing, critical revision, final approval
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13
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Yin H, Ma J, Han J, Li M, Shang J. Pharmacokinetic comparison of quercetin, isoquercitrin, and quercetin-3-O-β-D-glucuronide in rats by HPLC-MS. PeerJ 2019; 7:e6665. [PMID: 30941276 PMCID: PMC6440464 DOI: 10.7717/peerj.6665] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 02/22/2019] [Indexed: 12/21/2022] Open
Abstract
Background Quercetin (Qr), isoquercitrin (IQ), and quercetin-3-O-β-D-glucuronide (QG) are powerful phytochemicals that have been shown to exhibit disease prevention and health promotion properties. However, there may exist transformations between Qr, IQ, and QG in vivo. And the pharmacokinetic profiles of Qr, IQ, and QG have not been systematically compared. The pharmacokinetics study would be helpful to better understand the pharmacological actions of them. Methods Herein, we developed a reliable HPLC-MS method to compare the pharmacokinetics of Qr, IQ, and QG after separate (50 mg/kg) oral administration of them in rats, using puerarin as internal standard. The detection was performed using negative selected ion monitoring. This method was validated in terms of selectivity, linearity, precision, accuracy, extraction recovery, matrix effect, and stability; and shows reliabilities in monitoring the pharmacokinetic behaviors of these three compounds. Results Our results showed that after separate oral administration of Qr, IQ, and QG, all of the compounds could be detected in plasma. In addition, QG could be detected in the Qr group; Qr and QG could be measured in the IQ group; and Qr could be found in rat plasma after 1.5 h of QG administration. Moreover, the AUC0−t of Qr in the; Qr group (2,590.5 ± 987.9 mg/L*min), IQ group (2,212.7 ± 914.1 mg/L*min), and QG group (3,505.7 ± 1,565.0 mg/L*min) was larger than the AUC0−t of QG in the; Qr group (1,550.0 ± 454.2 mg/L*min), IQ group (669.3 ± 188.3 mg/L*min), and QG group (962.7 ± 602.3 mg/L*min). The AUC0−t of IQ was the lowest among all groups. Discussion Quercetin, IQ, and QG can all be absorbed into plasma. A mutual transformation exists between Qr and QG, and IQ can be metabolized into Qr and QG in SD rats. These results would provide a meaningful basis for understanding the pharmacological actions of these three compounds.
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Affiliation(s)
- Hongli Yin
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ji Ma
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jichun Han
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Maoru Li
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, China
| | - Jing Shang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China.,Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, China
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14
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Almeida AF, Borge GIA, Piskula M, Tudose A, Tudoreanu L, Valentová K, Williamson G, Santos CN. Bioavailability of Quercetin in Humans with a Focus on Interindividual Variation. Compr Rev Food Sci Food Saf 2018; 17:714-731. [PMID: 33350133 DOI: 10.1111/1541-4337.12342] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 01/27/2018] [Accepted: 01/30/2018] [Indexed: 01/12/2023]
Abstract
After consumption of plant-derived foods or beverages, dietary polyphenols such as quercetin are absorbed in the small intestine and metabolized by the body, or they are subject to catabolism by the gut microbiota followed by absorption of the resulting products by the colon. The resulting compounds are bioavailable, circulate in the blood as conjugates with glucuronide, methyl, or sulfate groups attached, and they are eventually excreted in the urine. In this review, the various conjugates from different intervention studies are summarized and discussed. In addition, the substantial variation between different individuals in the measured quercetin bioavailability parameters is assessed in detail by examining published human intervention studies where sources of quercetin have been consumed in the form of food, beverages, or supplements. It is apparent that most reported studies have examined quercetin and/or metabolites in urine and plasma from a relatively small number of volunteers. Despite this limitation, it is evident that there is less interindividual variation in metabolites which are derived from absorption in the small intestine compared to catabolites derived from the action of microbiota in the colon. There is also some evidence that a high absorber of intact quercetin conjugates could be a low absorber of microbiota-catalyzed phenolics, and vice versa. From the studies reported so far, the reasons or causes of the interindividual differences are not clear, but, based on the known metabolic pathways, it is predicted that dietary history, genetic polymorphisms, and variations in gut microbiota metabolism would play significant roles. In conclusion, quercetin bioavailability is subject to substantial variation between individuals, and further work is required to establish if this contributes to interindividual differences in biological responses.
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Affiliation(s)
- A Filipa Almeida
- Inst. de Biologia Experimental e Tecnológica, 2780-901 Oeiras, Portugal.,Inst. de Tecnologia Química e Biológica António Xavier, Univ. Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Grethe Iren A Borge
- Nofima AS, the Norwegian Inst. of Food, Fisheries and Aquaculture Research, Ås, Norway
| | - Mariusz Piskula
- Inst. of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland
| | - Adriana Tudose
- Central Military Emergency Univ. Hospital "dr. Carol Davila", Bucharest, 010825, Romania
| | - Liliana Tudoreanu
- Faculty of Veterinary Medicine, Univ. of Agronomic Sciences and Veterinary Medicine of Bucharest, Bucharest, Romania
| | - Kateřina Valentová
- Inst. of Microbiology of the Czech Academy of Sciences, Laboratory of Biotransformation, 14220 Prague, Czech Republic
| | - Gary Williamson
- School of Food Science and Nutrition, Univ. of Leeds, Leeds, United Kingdom
| | - Cláudia N Santos
- Inst. de Biologia Experimental e Tecnológica, 2780-901 Oeiras, Portugal.,Inst. de Tecnologia Química e Biológica António Xavier, Univ. Nova de Lisboa, 2780-157 Oeiras, Portugal
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15
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Structure related effects of flavonoid aglycones on cell cycle progression of HepG2 cells: Metabolic activation of fisetin and quercetin by catechol-O-methyltransferase (COMT). Biomed Pharmacother 2016; 83:998-1005. [DOI: 10.1016/j.biopha.2016.08.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/02/2016] [Accepted: 08/05/2016] [Indexed: 01/16/2023] Open
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16
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Yang P, Xu F, Li HF, Wang Y, Li FC, Shang MY, Liu GX, Wang X, Cai SQ. Detection of 191 Taxifolin Metabolites and Their Distribution in Rats Using HPLC-ESI-IT-TOF-MS(n). Molecules 2016; 21:molecules21091209. [PMID: 27649117 PMCID: PMC6273498 DOI: 10.3390/molecules21091209] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/04/2016] [Accepted: 09/06/2016] [Indexed: 01/12/2023] Open
Abstract
Taxifolin is a ubiquitous bioactive constituent of foods and herbs. To thoroughly explore its metabolism in vivo, an HPLC-ESI-IT-TOF-MSn method combined with specific metabolite detection strategy was used to detect and identify the metabolites of taxifolin in rats. Of the 191 metabolites tentatively identified, 154 were new metabolites, 69 were new compounds and 32 were dimers. This is the first report of the in vivo biotransformation of a single compound into more than 100 metabolites. Furthermore, acetylamination and pyroglutamic acid conjugation were identified as new metabolic reactions. Seventeen metabolites were found to have various taxifolin-related bioactivities. The potential targets of taxifolin and 63 metabolites were predicted using PharmMapper, with results showing that more than 60 metabolites have the same five targets. Metabolites with the same fragment pattern may have the same pharmacophore. Thus these metabolites may exert the same pharmacological effects as taxifolin through an additive effect on the same drug targets. This observation indicates that taxifolin is bioactive not only in the parent form, but also through its metabolites. These findings enhance understanding of the metabolism and effective forms of taxifolin and may provide further insight of the beneficial effects of taxifolin and its derivatives.
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Affiliation(s)
- Ping Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Feng Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Hong-Fu Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Yi Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Feng-Chun Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Ming-Ying Shang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Guang-Xue Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Xuan Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Shao-Qing Cai
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
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Roubalová L, Purchartová K, Papoušková B, Vacek J, Křen V, Ulrichová J, Vrba J. Sulfation modulates the cell uptake, antiradical activity and biological effects of flavonoids in vitro: An examination of quercetin, isoquercitrin and taxifolin. Bioorg Med Chem 2015; 23:5402-9. [PMID: 26260337 DOI: 10.1016/j.bmc.2015.07.055] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 07/24/2015] [Accepted: 07/25/2015] [Indexed: 12/22/2022]
Abstract
Quercetin 3'-O-sulfate is one of the main metabolites of the natural flavonoid quercetin in humans. This study was designed to prepare quercetin 3'-O-sulfate (1), isoquercitrin 4'-O-sulfate (2) and taxifolin 4'-O-sulfate (3) by the sulfation of quercetin, isoquercitrin (quercetin 3-O-glucoside) and taxifolin (2,3-dihydroquercetin) using the arylsulfate sulfotransferase from Desulfitobacterium hafniense, and to examine the effect of sulfation on selected biological properties of the flavonoids tested. We found that flavonoid sulfates 1-3 were weaker DPPH radical scavengers than the corresponding nonsulfated flavonoids, and that 1-3, unlike quercetin, did not induce the expression of either heme oxygenase-1 in RAW264.7 cells or cytochrome P450 1A1 in HepG2 cells. In both cell types, the cell uptake of compounds 1-3 was much lower than that of quercetin, but comparable to that of the glycoside isoquercitrin. Moreover, HPLC/MS metabolic profiling in HepG2 cells showed that flavonoid sulfates 1-3 were metabolized to a limited extent compared to the nonsulfated compounds. We conclude that sulfation of the tested flavonoids reduces their antiradical activity, and affects their cell uptake and biological activity in vitro.
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Affiliation(s)
- Lenka Roubalová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic
| | - Kateřina Purchartová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 14220, Czech Republic
| | - Barbora Papoušková
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, 17 listopadu 12, Olomouc 77146, Czech Republic
| | - Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic
| | - Vladimír Křen
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 14220, Czech Republic
| | - Jitka Ulrichová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic
| | - Jiří Vrba
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic.
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18
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Ultra-Performance Liquid Chromatography/Mass Spectrometry Study of Metabolism of 5-Methylpyranopelargonidin. Chromatographia 2015. [DOI: 10.1007/s10337-014-2832-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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19
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Vrba J, Papouskova B, Pyszkova M, Zatloukalova M, Lemr K, Ulrichova J, Vacek J. Metabolism of palmatine by human hepatocytes and recombinant cytochromes P450. J Pharm Biomed Anal 2015; 102:193-8. [DOI: 10.1016/j.jpba.2014.09.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 09/05/2014] [Accepted: 09/10/2014] [Indexed: 11/26/2022]
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20
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Pharmacokinetics of Quercetin and Other Flavonols Studied by Liquid Chromatography and LC-MS (a Review). Pharm Chem J 2014. [DOI: 10.1007/s11094-014-1137-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Isoquercitrin: Pharmacology, toxicology, and metabolism. Food Chem Toxicol 2014; 68:267-82. [DOI: 10.1016/j.fct.2014.03.018] [Citation(s) in RCA: 225] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/11/2014] [Accepted: 03/14/2014] [Indexed: 01/10/2023]
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22
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Mass spectrometric investigation of chelerythrine and dihydrochelerythrine biotransformation patterns in human hepatocytes. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 941:17-24. [DOI: 10.1016/j.jchromb.2013.09.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 09/09/2013] [Accepted: 09/25/2013] [Indexed: 11/21/2022]
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23
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LC-MS metabolic study on quercetin and taxifolin galloyl esters using human hepatocytes as toxicity and biotransformation in vitro cell model. J Pharm Biomed Anal 2013; 86:135-42. [PMID: 24008144 DOI: 10.1016/j.jpba.2013.07.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Revised: 07/30/2013] [Accepted: 07/31/2013] [Indexed: 11/21/2022]
Abstract
Galloyl esters of quercetin and taxifolin have been recently prepared semisynthetically as part of work towards modifying the solubility and modulating the biological activity of these natural flavonoids. In this paper we focused on the liquid chromatography-mass spectrometry (LC-MS) profiling of metabolites of 3-O-galloylquercetin and 7-O-galloyltaxifolin using human hepatocytes as the in vitro cell model. A subtoxic concentration (50μM) was used for both compounds and the formation of metabolites was monitored for 2h in hepatocytes and cultivation medium separately. Using negative electrospray ionization-quadrupole time-of-flight mass spectrometry (ESI-QqTOF MS), we identified different biotransformation patterns for the studied compounds. 3-O-Galloylquercetin is metabolized directly to glucuronides and methyl derivatives. In contrast, 7-O-galloyltaxifolin is oxidized to 7-O-galloylquercetin or cleaved to taxifolin, and consequently the products formed are sulfated or glucuronidated. The oxidative biotransformation of 3-O-galloylquercetin and 7-O-galloyltaxifolin is also accompanied by ester bond cleavage presumably by cellular enzymes (esterases) in a nonspecific manner. Our results provide fundamental insights into the biotransformation of monogalloyl esters of flavonoids and can be applied in investigations of the pharmaceutical potential of other galloylated polyphenolic substances.
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Heinrich J, Valentová K, Vacek J, Palíková I, Zatloukalová M, Kosina P, Ulrichová J, Vrbková J, Šimánek V. Metabolic profiling of phenolic acids and oxidative stress markers after consumption of Lonicera caerulea L. fruit. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:4526-4532. [PMID: 23581742 DOI: 10.1021/jf304150b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study investigated the effect of one-week consumption of 165 g/day fresh blue honeysuckle berries (208 mg/day anthocyanins) in 10 healthy volunteers. At the end of intervention, levels of benzoic (median 1782 vs 4156), protocatechuic (709 vs 2417), vanillic (2779 vs 4753), 3-hydroxycinnamic (143 vs 351), p-coumaric (182 vs 271), isoferulic (805 vs 1570), ferulic (1086 vs 2395), and hippuric (194833 vs 398711 μg/mg creatinine) acids by LC/MS were significantly increased in the urine. Clinical chemistry safety markers were not altered. Oxidative stress markers, erythrocyte glutathione peroxidase (0.73 vs 0.88 U/g Hb) and catalase (2.5 vs 2.8 μkat/g Hb) activities, and erythrocyte/plasma thiobarbituric acid reactive substance (522 vs 612/33 vs 38 μmol/g Hb/protein) levels were significantly increased, without change in plasma antioxidant status. Nonsignificant changes of advanced oxidation protein products and oxidized LDL were observed. The results provide a solid base for further study of metabolite excretion and antioxidant parameters after ingestion of anthocyanins.
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Affiliation(s)
- Jan Heinrich
- Department of Medical Chemistry and Biochemistry, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic
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25
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Vrba J, Gažák R, Kuzma M, Papoušková B, Vacek J, Weiszenstein M, Křen V, Ulrichová J. A Novel Semisynthetic Flavonoid 7-O-Galloyltaxifolin Upregulates Heme Oxygenase-1 in RAW264.7 Cells via MAPK/Nrf2 Pathway. J Med Chem 2013; 56:856-66. [DOI: 10.1021/jm3013344] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jiří Vrba
- Department of Medical Chemistry
and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská
3, Olomouc 77515, Czech Republic
| | - Radek Gažák
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská
1083, Prague 14220, Czech Republic
| | - Marek Kuzma
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská
1083, Prague 14220, Czech Republic
| | - Barbora Papoušková
- Regional Centre of Advanced Technologies
and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, 17 listopadu 12, Olomouc
77146, Czech Republic
| | - Jan Vacek
- Department of Medical Chemistry
and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská
3, Olomouc 77515, Czech Republic
| | - Martin Weiszenstein
- Department of Medical Chemistry
and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská
3, Olomouc 77515, Czech Republic
| | - Vladimír Křen
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská
1083, Prague 14220, Czech Republic
| | - Jitka Ulrichová
- Department of Medical Chemistry
and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská
3, Olomouc 77515, Czech Republic
- Institute
of Molecular and Translational
Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc
77515, Czech Republic
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26
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Wang J, Sun GX, Yu L, Wu FA, Guo XJ. Enhancement of the selective enzymatic biotransformation of rutin to isoquercitrin using an ionic liquid as a co-solvent. BIORESOURCE TECHNOLOGY 2013; 128:156-163. [PMID: 23201508 DOI: 10.1016/j.biortech.2012.10.098] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 10/19/2012] [Accepted: 10/23/2012] [Indexed: 05/25/2023]
Abstract
An ionic liquid (IL)-containing buffer system was first applied in the conversion of rutin to isoquercitrin. High substrate solubility was achieved to enhance the selectivity and efficiency of hesperidinase-catalyzed reaction. Ten ILs were selected as co-solvents to assist catalytic reactions in this biotransformation process. The transformed products of rutin were identified by LC-MS. The [Bmim][BF(4)]-glycine-sodium hydroxide buffer (pH 9) (10:90, v/v) was found to be the best medium for the biotransformation of isoquercitrin from rutin with higher selectivity and efficiency. The reaction time was reduced by 0.33-fold while the conversion of rutin and the yield of isoquercitrin were increased by 1.67-fold and 2.33-fold. The results suggest that IL co-solvents have great potential to enhance the selectively enzymatic hydrolysis of rutin for isoquercitrin production.
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Affiliation(s)
- Jun Wang
- School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
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