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Manta K, Papakyriakopoulou P, Nikolidaki A, Balafas E, Kostomitsopoulos N, Banella S, Colombo G, Valsami G. Comparative Serum and Brain Pharmacokinetics of Quercetin after Oral and Nasal Administration to Rats as Lyophilized Complexes with β-Cyclodextrin Derivatives and Their Blends with Mannitol/Lecithin Microparticles. Pharmaceutics 2023; 15:2036. [PMID: 37631250 PMCID: PMC10459069 DOI: 10.3390/pharmaceutics15082036] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
Quercetin (Que) is one of the most studied flavonoids with strong antioxidant properties ascribed to its ability to bind free radicals and inactivate them. However, the low solubility of the compound along with its inadequate absorption after oral administration limit its beneficial effects. Que's complexation with two different cyclodextrin (CD) derivatives (hydroxypropyl-β-CD and methyl-β-CD) via the neutralization/lyophilization method has been found to improve its physicochemical properties. Moreover, blends of the lyophilized powders with mannitol/lecithin microparticles (MLMPs) have been proposed as candidates for intranasal (IN) administration after in vitro and ex vivo evaluations. In this context, a comparative pharmacokinetic (PK) study of the IN vs oral administration of Que lyophilized powders and their blends with MLMPs (75:25 w/w) was performed on Wistar rats. The PK parameters estimated by a non-compartmental analysis using the sparse data methodology in Phoenix® 8.3 (Certara, Princeton, NJ, USA) illustrated the effectiveness of IN administration either in brain targeting or in reaching the bloodstream. Significant levels of the compound were achieved at both sites, compared to those after oral delivery which were negligible. These results favor the potential application of the prepared Que nasal powders for systemic and nose-to-brain delivery for the prevention and/or treatment of neuroinflammatory degenerative conditions, such as Parkinson's and Alzheimer's disease.
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Affiliation(s)
- Konstantina Manta
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece; (K.M.); (P.P.); (A.N.)
| | - Paraskevi Papakyriakopoulou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece; (K.M.); (P.P.); (A.N.)
| | - Anna Nikolidaki
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece; (K.M.); (P.P.); (A.N.)
| | - Evangelos Balafas
- Laboratory Animal Facility, Centre of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece; (E.B.); (N.K.)
| | - Nikolaos Kostomitsopoulos
- Laboratory Animal Facility, Centre of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece; (E.B.); (N.K.)
| | - Sabrina Banella
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy; (S.B.); (G.C.)
| | - Gaia Colombo
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy; (S.B.); (G.C.)
| | - Georgia Valsami
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece; (K.M.); (P.P.); (A.N.)
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Aghababaei F, Hadidi M. Recent Advances in Potential Health Benefits of Quercetin. Pharmaceuticals (Basel) 2023; 16:1020. [PMID: 37513932 PMCID: PMC10384403 DOI: 10.3390/ph16071020] [Citation(s) in RCA: 54] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/08/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Quercetin, a flavonoid found in fruits and vegetables, has been a part of human diets for centuries. Its numerous health benefits, including antioxidant, antimicrobial, anti-inflammatory, antiviral, and anticancer properties, have been extensively studied. Its strong antioxidant properties enable it to scavenge free radicals, reduce oxidative stress, and protect against cellular damage. Quercetin's anti-inflammatory properties involve inhibiting the production of inflammatory cytokines and enzymes, making it a potential therapeutic agent for various inflammatory conditions. It also exhibits anticancer effects by inhibiting cancer cell proliferation and inducing apoptosis. Finally, quercetin has cardiovascular benefits such as lowering blood pressure, reducing cholesterol levels, and improving endothelial function, making it a promising candidate for preventing and treating cardiovascular diseases. This review provides an overview of the chemical structure, biological activities, and bioavailability of quercetin, as well as the different delivery systems available for quercetin. Incorporating quercetin-rich foods into the diet or taking quercetin supplements may be beneficial for maintaining good health and preventing chronic diseases. As research progresses, the future perspectives of quercetin appear promising, with potential applications in nutraceuticals, pharmaceuticals, and functional foods to promote overall well-being and disease prevention. However, further studies are needed to elucidate its mechanisms of action, optimize its bioavailability, and assess its long-term safety for widespread utilization.
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Affiliation(s)
- Fatemeh Aghababaei
- Centre d'Innovació, Recerca i Transferència en Tecnologia dels Aliments (CIRTTA), TECNIO-UAB, XIA, Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, UAB-Campus, 08193 Bellaterra, Spain
| | - Milad Hadidi
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2017-2018. MASS SPECTROMETRY REVIEWS 2023; 42:227-431. [PMID: 34719822 DOI: 10.1002/mas.21721] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
This review is the tenth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2018. Also included are papers that describe methods appropriate to glycan and glycoprotein analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, new methods, matrices, derivatization, MALDI imaging, fragmentation and the use of arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Most of the applications are presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and highlights the impact that MALDI imaging is having across a range of diciplines. MALDI is still an ideal technique for carbohydrate analysis and advancements in the technique and the range of applications continue steady progress.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford, UK
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Synthesis, Structural Investigations, and In Vitro/In Silico Bioactivities of Flavonoid Substituted Biguanide: A Novel Schiff Base and Its Diorganotin (IV) Complexes. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248874. [PMID: 36558007 PMCID: PMC9783859 DOI: 10.3390/molecules27248874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
Quercetin is one of the most powerful bioactive dietary flavonoids. The in vivo biological study of quercetin is extremely difficult due to its very low solubility. However, diorganotin complexes of quercetin are more useful when contrasted with quercetin due to increased solubility. In the present study, quercetin, substituted biguanide synthesized in the form of Schiff base and its di-alkyl/aryl tin (IV) complexes were obtained by condensing Schiff base with respective di-alkyl/aryl tin (IV) dichloride. Advanced analytical techniques were used for structural elucidation. The results of biological screening against Gram-positive/Gram-negative bacteria and fungi showed that these diorganotin (IV) derivatives act as potent antimicrobial agents. The in silico investigation with dihydropteroate (DHPS) disclosed a large ligand-receptor interaction and revealed a strong relationship between the natural exercises and computational molecular docking results.
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K S NS, Dengale SJ, Mutalik S, Bhat K. Raloxifene HCl – Quercetin Co-amorphous System: Preparation, Characterization, and Investigation of its Behavior in Phosphate Buffer. Drug Dev Ind Pharm 2022; 48:227-238. [DOI: 10.1080/03639045.2022.2104308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Navya Sree K S
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India.
| | - Swapnil J Dengale
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India.
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education & Research (NIPER) Guwahati, Assam-781101, India.
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Krishnamurthy Bhat
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India.
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Quercetin, Rutin And Quercetin-Rutin Incorporated Hydroxypropyl β-Cyclodextrin Inclusion Complexes. Eur J Pharm Sci 2022; 172:106153. [DOI: 10.1016/j.ejps.2022.106153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 02/19/2022] [Accepted: 02/23/2022] [Indexed: 11/17/2022]
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Rizzuti B, Grande F, Conforti F, Jimenez-Alesanco A, Ceballos-Laita L, Ortega-Alarcon D, Vega S, Reyburn HT, Abian O, Velazquez-Campoy A. Rutin Is a Low Micromolar Inhibitor of SARS-CoV-2 Main Protease 3CLpro: Implications for Drug Design of Quercetin Analogs. Biomedicines 2021; 9:biomedicines9040375. [PMID: 33918402 PMCID: PMC8066963 DOI: 10.3390/biomedicines9040375] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 12/12/2022] Open
Abstract
The pandemic, due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has stimulated the search for antivirals to tackle COVID-19 infection. Molecules with known pharmacokinetics and already approved for human use have been demonstrated or predicted to be suitable to be used either directly or as a base for a scaffold-based drug design. Among these substances, quercetin is known to be a potent in vitro inhibitor of 3CLpro, the SARS-CoV-2 main protease. However, its low in vivo bioavailability calls for modifications to its molecular structure. In this work, this issue is addressed by using rutin, a natural flavonoid that is the most common glycosylated conjugate of quercetin, as a model. Combining experimental (spectroscopy and calorimetry) and simulation techniques (docking and molecular dynamics simulations), we demonstrate that the sugar adduct does not hamper rutin binding to 3CLpro, and the conjugated compound preserves a high potency (inhibition constant in the low micromolar range, Ki = 11 μM). Although showing a disruption of the pseudo-symmetry in the chemical structure, a larger steric volume and molecular weight, and a higher solubility compared to quercetin, rutin is able to associate in the active site of 3CLpro, interacting with the catalytic dyad (His41/Cys145). The overall results have implications in the drug-design of quercetin analogs, and possibly other antivirals, to target the catalytic site of the SARS-CoV-2 3CLpro.
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Affiliation(s)
- Bruno Rizzuti
- CNR-NANOTEC, Licryl-UOS Cosenza and CEMIF.Cal, Department of Physics, University of Calabria, 87036 Rende, Italy
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain; (A.J.-A.); (L.C.-L.); (D.O.-A.); (S.V.)
- Correspondence: (B.R.); (O.A.); (A.V.-C.)
| | - Fedora Grande
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (F.G.); (F.C.)
| | - Filomena Conforti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (F.G.); (F.C.)
| | - Ana Jimenez-Alesanco
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain; (A.J.-A.); (L.C.-L.); (D.O.-A.); (S.V.)
- Departament of Biochemistry and Molecular and Cell Biology, University of Zaragoza, 50009 Zaragoza, Spain
| | - Laura Ceballos-Laita
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain; (A.J.-A.); (L.C.-L.); (D.O.-A.); (S.V.)
- Institute for Health Research Aragón (IIS Aragon), 50009 Zaragoza, Spain
| | - David Ortega-Alarcon
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain; (A.J.-A.); (L.C.-L.); (D.O.-A.); (S.V.)
- Departament of Biochemistry and Molecular and Cell Biology, University of Zaragoza, 50009 Zaragoza, Spain
| | - Sonia Vega
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain; (A.J.-A.); (L.C.-L.); (D.O.-A.); (S.V.)
| | - Hugh T. Reyburn
- Department of Immunology and Oncology, National Centre for Biotechnology (CNB), CSIC, 28049 Madrid, Spain;
| | - Olga Abian
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain; (A.J.-A.); (L.C.-L.); (D.O.-A.); (S.V.)
- Departament of Biochemistry and Molecular and Cell Biology, University of Zaragoza, 50009 Zaragoza, Spain
- Institute for Health Research Aragón (IIS Aragon), 50009 Zaragoza, Spain
- Aragon Health Sciences Institute (IACS), 50009 Zaragoza, Spain
- Biomedical Research Network Center in Hepatic and Digestive Diseases (CIBERehd), 28029 Madrid, Spain
- Correspondence: (B.R.); (O.A.); (A.V.-C.)
| | - Adrian Velazquez-Campoy
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain; (A.J.-A.); (L.C.-L.); (D.O.-A.); (S.V.)
- Departament of Biochemistry and Molecular and Cell Biology, University of Zaragoza, 50009 Zaragoza, Spain
- Institute for Health Research Aragón (IIS Aragon), 50009 Zaragoza, Spain
- Biomedical Research Network Center in Hepatic and Digestive Diseases (CIBERehd), 28029 Madrid, Spain
- ARAID Foundation, Government of Aragon, 50018 Zaragoza, Spain
- Correspondence: (B.R.); (O.A.); (A.V.-C.)
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Quercetin as a Precursor for the Synthesis of Novel Nanoscale Cu (II) Complex as a Catalyst for Alcohol Oxidation with High Antibacterial Activity. Bioinorg Chem Appl 2021; 2021:8818452. [PMID: 33747070 PMCID: PMC7952193 DOI: 10.1155/2021/8818452] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 02/23/2021] [Indexed: 11/17/2022] Open
Abstract
Quercetin (3,3′,4′,5,7-pentahydroxyflavone) is one of the dietary flavonoids, distributed in medicinal plants, vegetables, and fruits. Quercetin has the ability to bind with several metal ions to increase its biological activities. In the last two decades, quercetin has attracted considerable attention due to the biological and pharmaceutical activities such as antioxidant, antibacterial, and anticancer. In the present study, quercetin and ethanolamine were used for the synthesis Schiff base complex, which was characterized by IR, 1H NMR, and 13C NMR spectroscopy. The Schiff base has been employed as a ligand for the synthesis of novel nanoscale Cu (II) complex. The product was characterized by FT-IR spectroscopy, FESEM, and XRD. Significantly, the product showed remarkable catalytic activity towards the oxidation of primary and secondary alcohols. The antibacterial activity of the final product was assessed against Staphylococcus aureus (Gram‐positive) and Escherichia coli (Gram‐negative) bacteria using an inhibition zone test. The synthesized nanoscale Cu (II) complex exhibited a strong antibacterial activity against both Gram-positive and Gram-negative bacteria.
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Parhi B, Bharatiya D, Swain SK. Application of quercetin flavonoid based hybrid nanocomposites: A review. Saudi Pharm J 2020; 28:1719-1732. [PMID: 33424263 PMCID: PMC7783214 DOI: 10.1016/j.jsps.2020.10.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 10/31/2020] [Indexed: 12/18/2022] Open
Abstract
Natural bioflavonoids are an essential component of dietary supplements possessing antimicrobial properties. Many of the bioflavonoids have resulted in positive antitumor, anticancer, antibacterial, antifungal, anti-inflammatory properties, but the efficacy remains low due to toxicity at the molecular level whereas antiviral property limits to negative. The synergistic link between nanoscience and flavonoid chemistry enhances the epidemiological properties of flavonoid and also diminish the antimicrobial resistivity (AMR) by forming their hybrid nanocomposites. Nanochemistry uses various nanocomposite and nanomaterials for biosensing the flavonoids and their delivery as a drug. The quercetin flavonoid and its derivatives such as rutin, and myricetin are used for sensing and drug delivery. Quercetin with 15Carbon-5Hydroxyl chemical scaffold has been explored for a few decades for the development of hybrid nanocomposite and nanomaterial with metallic as well as organic nano co-composites. This quercetin flavonoid based hybrid nanocomposites seemed to show a significant effect on In vitro and some animal model processes along with attenuating lipid peroxidation, platelet aggregation, and capillary permeability actions. This review mainly focused on the hybrid nanoscience of quercetin bioflavonoid and its application in numerous biological, material fields with a future perspective.
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Affiliation(s)
- Biswajit Parhi
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India
| | - Debasrita Bharatiya
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India
| | - Sarat K Swain
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India
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Wang J, Qian Y, Qian C, Shi F, Yao J, Bi X, Chen Z. A novel β-cyclodextrin-rhein conjugate for improving the water solubility and bioavailability of rhein. Carbohydr Res 2020; 490:107958. [PMID: 32120022 DOI: 10.1016/j.carres.2020.107958] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 02/02/2020] [Accepted: 02/18/2020] [Indexed: 01/05/2023]
Abstract
Rhein is a potential antitumor agent, but the poor water-solubility restricts its clinical applicability. β-cyclodextrin-drug conjugates provide a possibility to improve the water-solubility of rhein and thereby enhance its bioavailability. A novel β-cyclodextrin-rhein conjugate (β-CD-RH) was synthesized by covalently link β-cyclodextrin with rhein through a 1,8-diamino-3,6-dioxaoctane linker. The structure of β-CD-RH was characterized by 1H NMR, FT-IR, Maldi-tof MS etc. The inclusion style of β-CD-RH in water was detected by 2D NMR. The 2D ROESY spectrum provided details of the rhein moiety encapsulated in the β-CD cavity. The water-solubility of β-CD-RH is up to 3.24 μmol/mL β-CD-RH exhibited higher cytotoxicity than rhein and rhein/β-CD mixture against Hela cells. Our work provides a new way for the preparation of novel β-CD-drug conjugate.
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Affiliation(s)
- Jingjing Wang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Ying Qian
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Chen Qian
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Fanli Shi
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Jingyuan Yao
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Xiaolin Bi
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Zhipeng Chen
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China.
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Solubility Enhancement of Atrazine by Complexation with Cyclosophoraose Isolated from Rhizobium leguminosarum biovar trifolii TA-1. Polymers (Basel) 2019; 11:polym11030474. [PMID: 30960458 PMCID: PMC6473739 DOI: 10.3390/polym11030474] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 11/23/2022] Open
Abstract
Rhizobium leguminosarum biovar trifolii TA-1, a kind of soil bacteria, produces cyclosophoraoses (Cys). Cyclosophoraoses contain various ring sizes with degrees of polymerization ranging from 17 to 23. Atrazine is a hardly-soluble herbicide that contaminates soil and drinking water, and remains in soil for a long time. To remove this insoluble contaminant from aqueous solutions, we have enhanced the solubility of atrazine by complexation with Cys. The complex formation of Cys and atrazine was confirmed using 1H nuclear magnetic resonance (NMR), Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC), field emission scanning electron microscopy (FE-SEM), rotating frame nuclear overhauser spectroscopy (ROESY), and molecular modeling studies. The aqueous solubility of atrazine was enhanced 3.69-fold according to the added concentrations (20 mM) of Cys, compared to the 1.78-fold enhancements by β-cyclodextrin (β-CD). Cyclosophoraoses as an excellent solubility enhancer with long glucose chains that can effectively capture insoluble materials showed a potential application of microbial polysaccharides in the removal of hazardous hardly-soluble materials from aqueous solutions in the fields of biological and environmental industry.
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Jiang H, Yamashita Y, Nakamura A, Croft K, Ashida H. Quercetin and its metabolite isorhamnetin promote glucose uptake through different signalling pathways in myotubes. Sci Rep 2019; 9:2690. [PMID: 30804434 PMCID: PMC6389993 DOI: 10.1038/s41598-019-38711-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/23/2018] [Indexed: 12/22/2022] Open
Abstract
Quercetin and its metabolite isorhamnetin elicit various beneficial effects on human health. However, their bioavailability is low. In this study, we investigated whether low concentrations in the physiological range could promote glucose uptake in L6 myotubes, as well as the underlying molecular mechanisms. We found that 0.1 nM and 1 nM quercetin or 1 nM isorhamnetin significantly increased glucose uptake via translocation of glucose transporter type 4 (GLUT4) to the plasma membrane of L6 myotubes. Quercetin principally activated the CaMKKβ/AMPK signalling pathway at these concentrations, but also activated IRS1/PI3K/Akt signalling at 10 nM. In contrast, 1 nM and 10 nM isorhamnetin principally activated the JAK/STAT pathway. Treatment with siAMPKα and siJAK2 abolished quercetin- and isorhamnetin-induced GLUT4 translocation, respectively. However, treatment with siJAK3 did not affect isorhamnetin-induced GLUT4 translocation, indicating that isorhamnetin induced GLUT4 translocation mainly through JAK2, but not JAK3, signalling. Thus, quercetin preferably activated the AMPK pathway and, accordingly, stimulated IRS1/PI3K/Akt signalling, while isorhamnetin activated the JAK2/STAT pathway. Furthermore, after oral administration of quercetin glycoside at 10 and 100 mg/kg body weight significantly induced GLUT4 translocation to the plasma membrane of skeletal muscles in mice. In the same animals, plasma concentrations of quercetin aglycone form were 4.95 and 6.80 nM, respectively. In conclusion, at low-concentration ranges, quercetin and isorhamnetin promote glucose uptake by increasing GLUT4 translocation via different signalling pathways in skeletal muscle cells; thus, these compounds may possess beneficial functions for maintaining glucose homeostasis by preventing hyperglycaemia at physiological concentrations.
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Affiliation(s)
- Hao Jiang
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, 657-8501, Japan
| | - Yoko Yamashita
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, 657-8501, Japan
| | - Asuka Nakamura
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, 657-8501, Japan
| | - Kevin Croft
- School of Biomedical Science, The University of Western Australia, Perth, WA, 6009, Australia
| | - Hitoshi Ashida
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, 657-8501, Japan.
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Li D, Wu H, Huang W, Guo L, Dou H. Microcapsule of Sweet Orange Essential Oil Encapsulated in Beta-Cyclodextrin Improves the Release Behaviors In Vitro and In Vivo. EUR J LIPID SCI TECH 2018. [DOI: 10.1002/ejlt.201700521] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Dahu Li
- Citrus Research Institute; Southwest University; Chongqing 400715 China
| | - Houjiu Wu
- Citrus Research Institute; Southwest University; Chongqing 400715 China
| | - Wei Huang
- Citrus Research Institute; Southwest University; Chongqing 400715 China
| | - Li Guo
- Citrus Research Institute; Southwest University; Chongqing 400715 China
| | - Huating Dou
- Citrus Research Institute; Southwest University; Chongqing 400715 China
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Aithal GC, Nayak UY, Mehta C, Narayan R, Gopalkrishna P, Pandiyan S, Garg S. Localized In Situ Nanoemulgel Drug Delivery System of Quercetin for Periodontitis: Development and Computational Simulations. Molecules 2018; 23:E1363. [PMID: 29882751 PMCID: PMC6099597 DOI: 10.3390/molecules23061363] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/31/2018] [Accepted: 06/03/2018] [Indexed: 11/17/2022] Open
Abstract
This study was aimed at formulating a bioabsorbable, controlled-release, nanoemulgel of Quercetin, a potent antimicrobial and anti-inflammatory agent for the treatment of periodontitis that could improve its solubility and bioavailability. Screening of components was carried out based on the solubility studies. Nanoemulsion containing cinnamon oil as the oil phase, tween 80 and Carbitol® as the surfactant-cosurfactant mixture (Smix) and water as the aqueous phase containing 125 µg/200 µL of Quercetin was prepared by using spontaneous emulsification method. Nanoemulgel was prepared using 23% w/v poloxamer 407 as gel base. Comprehensive evaluation of the formulated nanoemulgel was carried out, and the optimized formulation was studied for drug release using Franz vertical diffusion cells. The formulated nanoemulgelexhibited a remarkable release of 92.4% of Quercetin at the end of 6 h, as compared to that of pure Quercetin-loaded gel (<3% release). The viscosity of the prepared nanoemulgel was found to be 30,647 ± 0.32 cPs at 37 °C. Also, molecular dynamics (MD) simulation was utilized to understand the gelation process and role of each component in the formulation. The present study revealed that the developed nanoemulgel of Quercetin could be a potential delivery system for clinical testing in periodontitis.
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Affiliation(s)
- Gururaj C Aithal
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India.
| | - Usha Yogendra Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India.
| | - Chetan Mehta
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India.
| | - Reema Narayan
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India.
| | - Pratibha Gopalkrishna
- Department of Periodontology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal 576104, India.
| | | | - Sanjay Garg
- School of Pharmacy and Medical Science, University of South Australia, Adelaide, SA 5000, Australia.
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