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Soltani S, Koubaa I, Cojean S, Picot C, Marchand P, Allouche N. Phytochemical, antileishmanial, antifungal and cytotoxic profiles of Thymelaea tartonraira (L.) All. extracts. Nat Prod Res 2024; 38:3481-3487. [PMID: 37647092 DOI: 10.1080/14786419.2023.2252153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 08/10/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
Extracts from leaves and stems of Thymelaea tartonraira (L.) All. growing in Tunisia were characterised for the presence of flavonoids and phenolic acids by LC-ESI-MS analysis. Twelve flavonoids and ten phenolic acids were detected for the first time in the aerial parts of this plant species, the most abundant compounds being gallic acid, kaempferol, catechin, chlorogenic acid, naringenin and acacetin. The extracts were subjected to in vitro antileishmanial, antifungal and cytotoxic assays, showing promising antileishmanial activity for the E6 dichloromethane extract from the stems (IC50 values of 1.12 ± 0.50 and 5.41 ± 1.84 µg/mL on L. donovani axenic and intramacrophagic amastigotes, respectively) at the level of the reference drug miltefosine for axenic model. No antifungal activity was observed against Candida albicans (CAAL) and Aspergillus fumigatus (ASFU) strains, with the exception of the E6 dichloromethane extract (IC50 value of 25.28 ± 4.89 µg/mL on CAAL93 strain). Low toxicity was also highlighted against macrophages Raw 264.7 cells. These promising results point out Thymelaea tartonraira (L.) All. extracts as a valuable source of new natural products to combat leishmaniasis.
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Affiliation(s)
- Siwar Soltani
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Imed Koubaa
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Sandrine Cojean
- BioCIS Biomolécules: Conception, Isolement, Synthèse, Chimiothérapie Antiparasitaire, Université Paris-Saclay, Orsay, France
| | - Carine Picot
- Nantes Université, Cibles et médicaments des infections et de l'immunité, IICiMed, FranceNantes
| | - Pascal Marchand
- Nantes Université, Cibles et médicaments des infections et de l'immunité, IICiMed, FranceNantes
| | - Noureddine Allouche
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
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Yang JH, Bai TC, Shi LL, Hou B, Tang R, Zhang RP, Chen XL. Antihyperlipidemic effect of Vaccinium dunalianum buds based on biological activity screening and LC-MS. JOURNAL OF ETHNOPHARMACOLOGY 2023; 306:116190. [PMID: 36693548 DOI: 10.1016/j.jep.2023.116190] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The buds of Vaccinium dunalianum Wight are used as folk medicine in the Yi settlement of the Yunnan Province, China. It has long been used as herbal tea in the local area owing to its effects of lowering blood lipids and body weight. However, there are only a few studies on its antihyperlipidemic effects, effective substances and mechanisms, especially its effectiveness in diet-induced hyperlipidemia. AIM OF THE STUDY This study aimed to elucidate the therapeutic effects, pharmacodynamic material bases, and mechanisms of V. dunalianum buds on diet-induced hyperlipidemia. MATERIALS AND METHODS A high-fat diet-induced hyperlipidemic Sprague-Dawley (SD) rat model was established. Rats were gavaged with different doses of aqueous extract of V. dunalianum(VDW) for 8 weeks and their sera and organ samples were collected. The antihyperlipidemic effect of VDW on SD rats was evaluated based on the biochemical indices and histopathological outcomes. Liquid chromatography-mass spectrometry(LC-MS) was used to determine the main components in VDW, which were separated and purified using sequential chromatographic methods. Their chemical structures were determined using high-resolution electrospray ionization mass spectroscopy and nuclear magnetic resonance spectroscopy. 6'-O-caffeoyl-arbutin, as the principal component of VDW, was also evaluated for its antihyperlipidemic activity using an approach similar to that used for VDW. Lastly, the potential targets of VDW and 6'-O-caffeoyl-arbutin in lowering blood lipids were screened out using network pharmacology, and the selected targets were docked with arbutin derivatives. The expression of target proteins was determined using western blotting to illustrate the antihyperlipidemic mechanisms of VDW and 6'-O-caffeoyl-arbutin. RESULTS VDW reduced triglyceride, total cholesterol, low-density lipoprotein, alanine transaminase, and aspartate transaminase levels in the serum of modeled rats, and increased high-density lipoprotein levels. There was an improvement in steatoses, and lipid droplet accumulation decreased in vivo after VDW intervention. LC-MS revealed that VDW mainly contained arbutin and chlorogenic acid derivatives. Sixteen compounds were isolated and identified. 6'-O-caffeoyl-arbutin was the main compound of VDW (>21.67%) that showed obvious antihyperlipidemic effect with low hepatic damage at different doses. PTGS2, ADH1C, and MAOB were screened out using network pharmacology and they showed strong correlations with arbutin derivative through molecular docking. Results from WB showed that VDW and 6'-O-caffeoyl-arbutin could reduce blood lipid levels by reducing the protein expression of PTGS2, ADH1C, and MAOB. CONCLUSIONS 6'-O-caffeoyl-arbutin was the main component of V. dunalianum buds. VDW and 6'-O-caffeoyl-arbutin could regulate blood lipid levels in the high-fat diet-induced rat model of hyperlipidemia without damaging their vital organs. Furthermore, they could regulate the expression of PTGS2, ADH1C, and MAOB proteins and play a role in lowering blood lipids. The findings of this study lay a foundation for the further development of V. dunalianum and 6'-O-caffeoyl-arbutin as health supplements or drugs for the management of hyperlipidemia.
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Affiliation(s)
- Jin-Han Yang
- School of Chinese Materia Medica, Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, 650500, PR China
| | - Tong-Chen Bai
- School of Chinese Materia Medica, Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, 650500, PR China
| | - Lu-Li Shi
- School of Chinese Materia Medica, Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, 650500, PR China
| | - Bo Hou
- School of Chinese Materia Medica, Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, 650500, PR China
| | - Ran Tang
- College of Tropical Crops, Yunnan Agricultural University, Puer, 665099, PR China
| | - Rong-Ping Zhang
- School of Chinese Materia Medica, Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, 650500, PR China.
| | - Xing-Long Chen
- School of Chinese Materia Medica, Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, 650500, PR China.
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Soltani S, Koubaa I, Dhouib I, Khemakhem B, Marchand P, Allouche N. New Specific α-Glucosidase Inhibitor Flavonoid from Thymelaea tartonraira Leaves: Structure Elucidation, Biological and Molecular Docking Studies. Chem Biodivers 2023; 20:e202200944. [PMID: 36757004 DOI: 10.1002/cbdv.202200944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 02/01/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023]
Abstract
The phytochemical investigation of Thymelaea tartonraira leaves led to the isolation and characterization of six compounds, including one new flavonoid glycoside identified as hypolaetin 8-O-β-D-galactopyranoside (4) along with five known compounds, daphnoretin (1), triumbelletin (2), genkwanin (3), tiliroside (5) and yuankanin (6). Their structures were established based on spectroscopic methods, such as UV, IR, NMR, and HR-ESI-MS. Triumbelletin (2) and tiliroside (5) were isolated for the first time from T. tartonraira leaves. The antioxidant property of all isolated compounds was tested based on DPPH, FRAP and total antioxidant capacity assays. Compound 4 displayed an antioxidant potency more interesting than vitamin C with an IC50 =15.00±0.50 μg/ml, followed by compound 5. Furthermore, the both compounds 4 and 5 were tested for their α-amylase inhibitory activity in-vitro. Compound 4 displayed higher potency to inhibit α-amylase, with an IC50 =46.49±2.32 μg/ml, than compound 5, with an IC50 =184.2±9.2 μg/ml, while the reference compound acarbose presented the highest potency to inhibit α-amylase with an IC50 =0.44±0.022 μg/ml. Compound 4 displayed a strong inhibitory ability of α-glucosidase activity approximately twice more than the reference compound, acarbose, with IC50 values of 60.00±3.00 and 125.00±6.25 μg/ml, respectively. Thus, compound 4 exhibited a specific inhibitory activity for α-glucosidase. The molecular docking studies have supported our findings and suggested that compound 4 has been involved in various binding interactions within the active site of both enzymes α-amylase and α-glucosidase.
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Affiliation(s)
- Siwar Soltani
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, P. B.1171, Sfax, 3000, Tunisia
| | - Imed Koubaa
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, P. B.1171, Sfax, 3000, Tunisia
| | - Ines Dhouib
- Laboratory of Plant Biotechnology, Faculty of Sciences of Sfax, University of Sfax, P. B.1171, Sfax, 3000, Tunisia
| | - Bassem Khemakhem
- Laboratory of Plant Biotechnology, Faculty of Sciences of Sfax, University of Sfax, P. B.1171, Sfax, 3000, Tunisia
| | - Pascal Marchand
- Nantes Université, Cibles et médicaments des infections et de l'immunité, IICiMed, UR 1155, F-44000 Nantes, France
| | - Noureddine Allouche
- Laboratory of Organic Chemistry LR17ES08, Natural Substances Team, Faculty of Sciences of Sfax, University of Sfax, P. B.1171, Sfax, 3000, Tunisia
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Araújo DLO, Ramos AVG, Daufemback JV, de Souza MEV, Moreno BP, Fernandes CS, Lopes AP, Battistella AC, Basso EA, Visentainer JV, Tiuman TS, Cottica SM, Carmo MRB, Sarragiotto MH, Baldoqui DC. TOCSY, hydrogen decoupling and computational calculations to an unequivocal structural elucidation of a new sesquiterpene derivative and identification of other constituents from Praxelis sanctopaulensis. PHYTOCHEMICAL ANALYSIS : PCA 2022; 33:226-238. [PMID: 34363263 DOI: 10.1002/pca.3082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Praxelis genus comprises 24 species, however, only two species of this genus have been chemically investigated. Here we investigated Praxelis sanctopaulensis, a native plant from Brazil, that occurs mainly in Cerrado regions. OBJECTIVE The goal was to identify the specialised metabolites from P. sanctopaulensis, and compare with those described from Praxelis and Chromolaena species. METHODS The phytochemical study of P. sanctopaulensis was performed through different chromatography techniques, including high-performance liquid chromatography (HPLC), gas chromatography flame ionisation detector (GC-FID), and ultra-high-performance liquid chromatography high-resolution tandem mass spectrometry (UHPLC-HRMS/MS). The structures of the compounds were established based on spectroscopic analysis, total correlated spectroscopy (TOCSY), hydrogen decoupling and computational calculations was used to an unequivocal structural elucidation of a new sesquiterpene. The antioxidant activity was evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP), and antimicrobial assay was performed by the microdilution method. Comparison of the flavonoids described P. sanctopaulensis was carried out using principal component analysis. RESULTS The phytochemical investigation of P. sanctopaulensis led to the isolation of a pair of diastereomers, praxilone A and praxilone B. Seven known compounds were isolated from this species, another 14 fatty acids were detected in hexane fraction, and 26 compounds were identified from ethyl acetate fraction. All these compounds are being described for the first time in this species, with the exception of viridifloric acid. The ethyl acetate fraction showed potent antioxidant activity. CONCLUSIONS Forty-seven compounds are described from P. sanctopaulensis. The combination of different techniques of nuclear magnetic resonance (NMR) spectroscopy and computational calculations allowed the unequivocal structure elucidation of a new cadinene. The clustering analysis showed similarities between the flavonoids identified in P. sanctopaulensis and in Chromolaena species.
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Affiliation(s)
- Débora L O Araújo
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | - Anderson V G Ramos
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | - João V Daufemback
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | - Maria E V de Souza
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | | | | | - Ana Paula Lopes
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | - Alana C Battistella
- Programa de Pós-graduação em Processos Químicos e Biotecnológicos, Universidade Tecnológica Federal do Paraná, Toledo, PR, Brazil
| | - Ernani A Basso
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | - Jesuí V Visentainer
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | - Tatiana S Tiuman
- Programa de Pós-graduação em Processos Químicos e Biotecnológicos, Universidade Tecnológica Federal do Paraná, Toledo, PR, Brazil
| | - Solange M Cottica
- Programa de Pós-graduação em Processos Químicos e Biotecnológicos, Universidade Tecnológica Federal do Paraná, Toledo, PR, Brazil
| | - Marta R B Carmo
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Maria H Sarragiotto
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | - Debora C Baldoqui
- Departamento de Química, Universidade Estadual de Maringá, Maringá, PR, Brazil
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Flavonoid Glycosides from the Aerial Part of Lespedeza tomentosa. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03541-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Chemical Studies of Croton heliotropiifolius and Croton Blanchetianus Flowers Visited by Bees. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03403-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Van DTT, Cuong DH, Lien GTK, Yen PH. Phytochemical study of the ethyl acetate extract of male Carica papaya
flowers from Quang Nam - Da Nang. VIETNAM JOURNAL OF CHEMISTRY 2020. [DOI: 10.1002/vjch.201900029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Do Thi Thuy Van
- University of Science and Education, The University of Danang; 459 Ton Duc Thang street, Lien Chieu ward, Da Nang City 50000 Viet Nam
| | - Dao Hung Cuong
- University of Science and Education, The University of Danang; 459 Ton Duc Thang street, Lien Chieu ward, Da Nang City 50000 Viet Nam
| | | | - Pham Hai Yen
- Institute of Marine Biochemistry, Vietnam of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
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8
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Mtambo S, Krishna S, Sershen, Govender P. Physico-chemical, antimicrobial and anticancer properties of silver nanoparticles synthesised from organ-specific extracts of Bidens pilosa L. SOUTH AFRICAN JOURNAL OF BOTANY 2019; 126:196-206. [DOI: 10.1016/j.sajb.2019.07.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
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9
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Toktarbek M, Seitimova GA, Eskalieva BK, Burasheva GS, Beyatli A, Choudhary MI. Sterols and Flavonoids from the Pelitohalophytes Petrosimonia glaucescens and Climacoptera brachiata. Chem Nat Compd 2019. [DOI: 10.1007/s10600-019-02738-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Van QTT, Vien LT, Hanh TTH, Huong PTT, Van Thanh N, Cuong NX, Nam NH, Van Minh C. Structural elucidation of four flavonoid glycosides from Barringtonia acutangula. VIETNAM JOURNAL OF CHEMISTRY 2018. [DOI: 10.1002/vjch.201800011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Quach Thi Thanh Van
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
- Graduate University of Science and Technology, VAST
- Viet Tri University of Industry
| | - Le Thi Vien
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Tran Thi Hong Hanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Phan Thi Thanh Huong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Nguyen Van Thanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
- Graduate University of Science and Technology, VAST
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Chau Van Minh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
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Alexandri E, Ahmed R, Siddiqui H, Choudhary MI, Tsiafoulis CG, Gerothanassis IP. High Resolution NMR Spectroscopy as a Structural and Analytical Tool for Unsaturated Lipids in Solution. Molecules 2017; 22:E1663. [PMID: 28981459 PMCID: PMC6151582 DOI: 10.3390/molecules22101663] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 09/28/2017] [Accepted: 10/01/2017] [Indexed: 12/13/2022] Open
Abstract
Mono- and polyunsaturated lipids are widely distributed in Nature, and are structurally and functionally a diverse class of molecules with a variety of physicochemical, biological, medicinal and nutritional properties. High resolution NMR spectroscopic techniques including 1H-, 13C- and 31P-NMR have been successfully employed as a structural and analytical tool for unsaturated lipids. The objective of this review article is to provide: (i) an overview of the critical 1H-, 13C- and 31P-NMR parameters for structural and analytical investigations; (ii) an overview of various 1D and 2D NMR techniques that have been used for resonance assignments; (iii) selected analytical and structural studies with emphasis in the identification of major and minor unsaturated fatty acids in complex lipid extracts without the need for the isolation of the individual components; (iv) selected investigations of oxidation products of lipids; (v) applications in the emerging field of lipidomics; (vi) studies of protein-lipid interactions at a molecular level; (vii) practical considerations and (viii) an overview of future developments in the field.
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Affiliation(s)
- Eleni Alexandri
- Section of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece.
| | - Raheel Ahmed
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Hina Siddiqui
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Muhammad I Choudhary
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 214412, Saudi Arabia.
| | | | - Ioannis P Gerothanassis
- Section of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece.
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
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Vien LT, Van QTT, Hanh TTH, Huong PTT, Thuy NTK, Cuong NT, Dang NH, Thanh NV, Cuong NX, Nam NH, Kiem PV, Minh CV. Flavonoid glycosides from Barringtonia acutangula. Bioorg Med Chem Lett 2017; 27:3776-3781. [DOI: 10.1016/j.bmcl.2017.06.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/06/2017] [Accepted: 06/26/2017] [Indexed: 11/27/2022]
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13
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Charisiadis P, Kontogianni VG, Tsiafoulis CG, Tzakos AG, Gerothanassis IP. Determination of Polyphenolic Phytochemicals using Highly Deshielded -OH 1 H-NMR Signals. PHYTOCHEMICAL ANALYSIS : PCA 2017; 28:159-170. [PMID: 27981663 DOI: 10.1002/pca.2656] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 09/22/2016] [Accepted: 09/26/2016] [Indexed: 06/06/2023]
Affiliation(s)
- Pantelis Charisiadis
- Section of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, GR, -45110, Greece
| | - Vassiliki G Kontogianni
- Section of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, GR, -45110, Greece
| | | | - Andreas G Tzakos
- Section of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, GR, -45110, Greece
| | - Ioannis P Gerothanassis
- Section of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, GR, -45110, Greece
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Blunder M, Orthaber A, Bauer R, Bucar F, Kunert O. Efficient identification of flavones, flavanones and their glycosides in routine analysis via off-line combination of sensitive NMR and HPLC experiments. Food Chem 2017; 218:600-609. [DOI: 10.1016/j.foodchem.2016.09.077] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 09/11/2016] [Accepted: 09/12/2016] [Indexed: 12/21/2022]
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15
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Pagès G, Gilard V, Martino R, Malet-Martino M. Pulsed-field gradient nuclear magnetic resonance measurements (PFG NMR) for diffusion ordered spectroscopy (DOSY) mapping. Analyst 2017; 142:3771-3796. [DOI: 10.1039/c7an01031a] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The advent of Diffusion Ordered SpectroscopY (DOSY) NMR has enabled diffusion coefficients to be routinely measured and used to characterize chemical systems in solution. Indeed, DOSY NMR allows the separation of the chemical entities present in multicomponent systems and provides information on their intermolecular interactions as well as on their size and shape.
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Affiliation(s)
- G. Pagès
- INRA
- AgroResonance – UR370 Qualité des Produits Animaux
- Saint Genès Champanelle
- France
| | - V. Gilard
- Groupe de RMN Biomédicale
- Laboratoire de Synthèse et Physicochimie de Molécules d'Intérêt Biologique
- UMR CNRS 5068
- Université de Toulouse
- 31062 Toulouse cedex 9
| | - R. Martino
- Groupe de RMN Biomédicale
- Laboratoire de Synthèse et Physicochimie de Molécules d'Intérêt Biologique
- UMR CNRS 5068
- Université de Toulouse
- 31062 Toulouse cedex 9
| | - M. Malet-Martino
- Groupe de RMN Biomédicale
- Laboratoire de Synthèse et Physicochimie de Molécules d'Intérêt Biologique
- UMR CNRS 5068
- Université de Toulouse
- 31062 Toulouse cedex 9
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16
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Hong SS, Jeong W, Lee JY, Ahn EK, Oh JS. Inhibition of Antigen-Induced Degranulation by Flavonoids Isolated from the Leaves of Quercus Acuta in RBL-2H3 Cells. Chem Nat Compd 2016. [DOI: 10.1007/s10600-016-1869-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Dung HV, Bach NV, Trung TN, Nhiem NX, Tai BH, Kiem PV, Park S, Lee TH, Kim SY, Kim SH. Megastigmane Glycosides fromDocynia indicaand Their Anti-inflammatory Activities. Helv Chim Acta 2016. [DOI: 10.1002/hlca.201600125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hoang Viet Dung
- Vietnam Military Medical University; 160 Phung Hung, Hadong Hanoi Vietnam
| | - Nguyen Van Bach
- Vietnam Military Medical University; 160 Phung Hung, Hadong Hanoi Vietnam
| | - Trinh Nam Trung
- Vietnam Military Medical University; 160 Phung Hung, Hadong Hanoi Vietnam
| | - Nguyen Xuan Nhiem
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Caugiay Hanoi Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Caugiay Hanoi Vietnam
| | - Phan Van Kiem
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Caugiay Hanoi Vietnam
| | - SeonJu Park
- College of Pharmacy; Yonsei Institute of Pharmaceutical Science; Yonsei University; Incheon 21983 Korea
| | - Taek Hwan Lee
- College of Pharmacy; Yonsei Institute of Pharmaceutical Science; Yonsei University; Incheon 21983 Korea
| | - Sun Yeou Kim
- College of Pharmacy; Gachon University; Incheon 21936 Korea
| | - Seung Hyun Kim
- College of Pharmacy; Yonsei Institute of Pharmaceutical Science; Yonsei University; Incheon 21983 Korea
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18
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Tanoli SAK, Tanoli NU, Bondancia TM, Usmani S, Ul-Haq Z, Fernandes JB, Thomasi SS, Ferreira AG. Human serum albumin-specific recognition of the natural herbal extract of Stryphnodendron polyphyllum through STD NMR, hyphenations and docking simulation studies. RSC Adv 2015. [DOI: 10.1039/c5ra01457c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Over the last two decades, new and more advanced strategies that help in the rapid screening and identification of new ligands for a specific macromolecule have become an important domain.
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Affiliation(s)
- Sheraz A. K. Tanoli
- Laboratory of Nuclear Magnetic Resonance
- Department of Chemistry
- Federal University of São Carlos
- Brazil
| | - Nazish U. Tanoli
- Laboratory of Nuclear Magnetic Resonance
- Department of Chemistry
- Federal University of São Carlos
- Brazil
| | | | - Saman Usmani
- Dr. Panjwani Center for Molecular Medicine and Drug Research
- International Center for Chemical and Biological Sciences
- University of Karachi
- Karachi
- Pakistan
| | - Zaheer Ul-Haq
- Dr. Panjwani Center for Molecular Medicine and Drug Research
- International Center for Chemical and Biological Sciences
- University of Karachi
- Karachi
- Pakistan
| | | | - Sérgio S. Thomasi
- Laboratory of Nuclear Magnetic Resonance
- Department of Chemistry
- Federal University of São Carlos
- Brazil
| | - Antonio G. Ferreira
- Laboratory of Nuclear Magnetic Resonance
- Department of Chemistry
- Federal University of São Carlos
- Brazil
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19
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Charisiadis P, Tsiafoulis CG, Tzakos AG, Gerothanassis IP. Dynamic changes in composition of extracts of natural products as monitored by in situ NMR. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2014; 52:764-768. [PMID: 25139153 DOI: 10.1002/mrc.4128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/24/2014] [Accepted: 07/27/2014] [Indexed: 06/03/2023]
Abstract
The direct in situ NMR observation and quantification, based on the aldehyde -CH chemical shift region, of the inter-conversion of secoiridoid derivatives due to temperature and solvent effects is demonstrated in complex extracts of natural products without prior isolation of the individual components. The equilibrium between the aldehyde hydrate form and the dialdehyde form of the oleuropein aglycon of an olive leaf aqueous extract in D(2)O was shown to be temperature dependent. The resulting thermodynamic values of the Van't Hoff plot with ΔH(o) = -26.34 ± 1.00 kJ mol(-1) and TΔS° (298 K) = -24.70 ± 1.00 kJ mol(-1) demonstrate a significant entropy term which nearly compensates the effect of enthalpy at room temperature. The equilibrium between the two diastereomeric hemiacetal forms and the dialdehyde form of the oleuropein 6-O-β-d-glucopyranoside aglycon of an olive leaf aqueous extract in CD(3) OD was also shown to be strongly temperature dependent again because of the significant entropy term (TΔS° (298 K) = -26.50 ± 1.39 kJ mol(-1)) compared with that of the enthalpy term (ΔH(o) = -36.64 ± 1.46 kJ mol(-1)). This is the first demonstration of the significant role of the entropy parameter in determining the equilibrium of chemical transformations in complex mixtures of natural products due to solvent and temperature effects.
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Affiliation(s)
- Pantelis Charisiadis
- Section of Organic Chemistry and Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, GR-45110, Greece
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20
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dos Santos AE, Kuster RM, Yamamoto KA, Salles TS, Campos R, de Meneses MDF, Soares MR, Ferreira D. Quercetin and quercetin 3-O-glycosides from Bauhinia longifolia (Bong.) Steud. show anti-Mayaro virus activity. Parasit Vectors 2014; 7:130. [PMID: 24678592 PMCID: PMC3973022 DOI: 10.1186/1756-3305-7-130] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 03/12/2014] [Indexed: 01/24/2023] Open
Abstract
Background The arthropod-borne Mayaro virus (MAYV) causes ‘Mayaro fever’, a disease of medical significance, primarily affecting individuals in permanent contact with forested areas in tropical South America. Recently, MAYV has attracted attention due to its likely urbanization. Currently, there are no licensed drugs against most mosquito-transmitted viruses. Here, we investigated the in vitro anti-MAYV activity of the flavonoids quercetin and its derivatives from the Brazilian shrub Bauhinia longifolia (Bong.) Steud. Methods Flavonoids were purified by chromatographic fractionation from leaf extracts of B. longifolia and chemically identified as quercetin and quercetin glycosides using spectroscopic techniques. Cytotoxicity of purified flavonoids and of EtOAc- and n-BuOH-containing flavonoid mixtures was measured by the dye-uptake assay while their antiviral activity was evaluated by a virus yield inhibition assay. Results The following flavonoids were purified from B. longifolia leaves: non-glycosylated quercetin and its glycosides guaijaverin, quercitrin, isoquercitrin, and hyperin. EtOAc and n-BuOH fractions containing these flavonoids demonstrated the highest antiviral activity of all tested substances, while quercetin had the highest antiviral activity amongst purified flavonoids. Quercetin, EtOAc, or n-BuOH fractions inhibited MAYV production by more than 90% at 25 μg/mL, displaying a stronger antiviral effect than the licensed antiviral ribavirin. A mixture of the isomers isoquercitrin and hyperin had a modest antiviral effect (IC90 = 104.9), while guaijaverin and quercitrin did not show significant antiviral activity. Conclusions B. longifolia is a good source of flavonoids with anti-Mayaro virus activity. This is the first report of the activity of quercetin and its derivatives against an alphavirus.
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Affiliation(s)
| | | | | | | | | | | | | | - Davis Ferreira
- Microbiology Institute, Virology Department, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
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21
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Abu-Reidah IM, Contreras MM, Arráez-Román D, Segura-Carretero A, Fernández-Gutiérrez A. Reversed-phase ultra-high-performance liquid chromatography coupled to electrospray ionization-quadrupole-time-of-flight mass spectrometry as a powerful tool for metabolic profiling of vegetables: Lactuca sativa as an example of its application. J Chromatogr A 2013; 1313:212-27. [PMID: 23891214 DOI: 10.1016/j.chroma.2013.07.020] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 07/01/2013] [Accepted: 07/04/2013] [Indexed: 01/25/2023]
Abstract
Lettuce (Lactuca sativa), a leafy vegetal widely consumed worldwide, fresh cut or minimally processed, constitutes a major dietary source of natural antioxidants and bioactive compounds. In this study, reversed-phase ultra-high-performance liquid chromatography (RP-UHPLC) coupled to electrospray ionization-quadrupole-time-of-flight mass spectrometry (ESI-QTOF-MS) was applied for the comprehensive profiling of polar and semi-polar metabolites from three lettuce cultivars (baby, romaine, and iceberg). The UHPLC systems allowed the use of a small-particle-size C18 column (1.8 μm), with very fine resolution for the separation of up to seven isomers, and the QTOF mass analyzer enabled sensitive detection with high mass resolution and accuracy in full scan. Thus, a total of 171 compounds were tentatively identified by matching their accurate mass signals and suggested molecular formula with those previously reported in family Asteraceae. Afterwards, their structures were also corroborated by the MS/MS data provided by the QTOF analyzer. Well-known amino acids, organic acids, sesquiterpene lactones, phenolic acids and flavonoids were characterized, e.g. lactucin, lactucopicrin, caftaric acid, chlorogenic acid, caffeoylmalic acid, chicoric acid, isochlorogenic acid A, luteolin, and quercetin glycosides. For this plant species, this is the first available report of several isomeric forms of the latter polyphenols and other types of components such as nucleosides, peptides, and tryptophan-derived alkaloids. Remarkably, 10 novel structures formed by the conjugation of known amino acids and sesquiterpene lactones were also proposed. Thus, the methodology applied is a useful option to develop an exhaustive metabolic profiling of plants that helps to explain their potential biological activities and folk uses.
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Affiliation(s)
- I M Abu-Reidah
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain; Functional Food Research and Development Centre (CIDAF), Health-Science Technological Park, Avenida del Conocimiento 3, 18016 Granada, Spain(1)
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22
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Primikyri A, Kyriakou E, Charisiadis P, Tsiafoulis C, Stamatis H, Tzakos AG, Gerothanassis IP. Fine-tuning of the diffusion dimension of –OH groups for high resolution DOSY NMR applications in crude enzymatic transformations and mixtures of organic compounds. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Jiang Y, Vaysse J, Gilard V, Balayssac S, Déjean S, Malet-Martino M, David B, Fiorini C, Barbin Y. Quality assessment of commercial Magnoliae officinalis Cortex by ¹H-NMR-based metabolomics and HPLC methods. PHYTOCHEMICAL ANALYSIS : PCA 2012; 23:387-395. [PMID: 22025447 DOI: 10.1002/pca.1369] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 09/12/2011] [Accepted: 09/17/2011] [Indexed: 05/31/2023]
Abstract
INTRODUCTION The quality control of Magnoliae officinalis Cortex, a commonly used traditional Chinese medicine, is currently based on the assay of the two active compounds, honokiol and magnolol, by TLC or HPLC. OBJECTIVE To compare ¹H-NMR-based metabolomics with the HPLC method for controlling the quality of Magnoliae officinalis Cortex. To identify the metabolites contributing to the differences between the samples and to discriminate different medicinal parts and geographic origins of these samples by ¹H-NMR-based metabolomics. METHODOLOGY ¹H-NMR and several multivariate analysis techniques were applied to analyse the extracts of 18 batches of Magnoliae officinalis Cortex commercial samples, and the contents of honokiol and magnolol in these samples were determined by HPLC. The correlation analysis between the data from ¹H-NMR and HPLC was performed with the mixOmics software based on an unsupervised method. RESULTS Honokiol and magnolol were the main compounds responsible for the discrimination of samples from different batches, thus proving that the choice of these two compounds as markers for quality assessment by HPLC is relevant. The two sources of Magnoliae officinalis Cortex recorded in the Chinese Pharmacopoeia, Magnolia officinalis and Magnolia officinalis var. biloba, could be differentiated from ¹H-NMR data, but the pattern recognition analysis by PLS-DA was unsuccessful in discriminating samples from various geographical origins. CONCLUSION The combination of ¹H-NMR that gives a comprehensive profile of the metabolites and HPLC that targets two biomarkers is an efficient means for a better quality control of Magnoliae officinalis Cortex.
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Affiliation(s)
- Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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24
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Lin HC, Tsai SF, Lee SS. Flavonoid Glycosides from the Leaves of Machilus philippinensis. J CHIN CHEM SOC-TAIP 2011. [DOI: 10.1002/jccs.201190020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Novoa-Carballal R, Fernandez-Megia E, Jimenez C, Riguera R. NMR methods for unravelling the spectra of complex mixtures. Nat Prod Rep 2010; 28:78-98. [PMID: 20936238 DOI: 10.1039/c005320c] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The main methods for the simplification of the NMR of complex mixtures by selective attenuation/suppression of the signals of certain components are presented. The application of relaxation, diffusion and PSR filters and other techniques to biological samples, pharmaceuticals, foods, living organisms and natural products are illustrated with examples.
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Affiliation(s)
- Ramon Novoa-Carballal
- Department of Organic Chemistry and Centre for Research in Biological Chemistry and Molecular Materials, University of Santiago de Compostela, Santiago de Compostela, Spain
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