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Kukavica B, Škondrić S, Trifković T, Mišić D, Gašić U, Topalić-Trivunović L, Savić A, Velemir A, Davidović-Plavšić B, Šešić M, Lukić N. Comparative polyphenolic profiling of five ethnomedicinal plants and their applicative potential in the treatment of type 2 diabetes. JOURNAL OF ETHNOPHARMACOLOGY 2024; 320:117377. [PMID: 37939910 DOI: 10.1016/j.jep.2023.117377] [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: 08/16/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The medicinal plants Salvia officinalis, Trifolium pratense, Agrimonia eupatoria, Cichorium intybus and Vinca minor are traditionally used for the prevention and treatment of numerous diseases, including diabetes. AIM OF THE STUDY Type 2 diabetes (T2D) is one of the most common diseases nowadays, often accompanied by oxidative stress and microbial infections. The aim of our work was to examine the antidiabetic, antioxidant, and antimicrobial properties of ethanol extracts of five medicinal plants for the purpose of their possible use in the treatment of T2D. MATERIALS AND METHODS The polyphenolic profile of the plant extracts was analyzed by Ultra-High Performance Liquid Chromatography with a diode array detector configured with a triple quadrupole mass spectrometer (UHPLC/DAD/(-)HESI-MS2). In vitro antidiabetic activity of extracts was determined by measuring the percentage of α-amylase and α-glucosidase inhibition. The antioxidant activity of the extract was determined by different spectrophotometric methods, while the antimicrobial activity was determined by agar dilution and disc diffusion methods. RESULTS A. eupatoria extract contains the highest percentage of flavonoids (94%, with isoquercetin, vitexin, and rutin as the most abundant) in relation to the concentration of total phenolic compounds and exhibits excellent antidiabetic, antioxidant, and antimicrobial activity. S. officinalis extract contains 60% flavonoids (predominately cirsimaritin and epigallocatechin gallate) and 40% phenolic acids (with rosmarinic acid being the most abundant from this group) and exhibits weak antidiabetic activity, significant antioxidant activity, and excellent antibacterial activity. A 45% percentage of flavonoids (with isoquercetin as the most abundant one) and 55% of phenolic acids (with ferulic acid as the most abundant) were measured in the extract of T. pratense, which had excellent antidiabetic activity but weaker antioxidant and antimicrobial activity. A similar percentage of flavonoids (52%, with epigallocatechin gallate in the highest concentration) and phenolic acids (48%, with chlorogenic acid as the most abundant) was measured in the extract of C. intybus which showed moderate antidiabetic, antioxidant, and antimicrobial properties. The extract of V. minor was the richest in phenolic acids (80%, with the most abundant chlorogenic acid), which resulted in weaker antidiabetic and antioxidant activities (except for Fe2+ chelating ability) and antimicrobial activity. CONCLUSION The results indicate that specific phenolic compounds are responsible for the different biological activities of the plant extracts. Among the investigated plants, the extract of A. eupatoria has the greatest potential for applications in the treatment of T2D.
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Affiliation(s)
- Biljana Kukavica
- University of Banja Luka, Faculty of Natural Sciences and Mathematics, Mladena Stojanovića 2, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
| | - Siniša Škondrić
- University of Banja Luka, Faculty of Natural Sciences and Mathematics, Mladena Stojanovića 2, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
| | - Tanja Trifković
- University of Banja Luka, Faculty of Natural Sciences and Mathematics, Mladena Stojanovića 2, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
| | - Danijela Mišić
- University of Belgrade, Institute for Biological Research "Siniša Stanković" Natonal Institute of Republic of Serbia, Bulevar despota Stefana 142, 11060, Belgrade, Serbia.
| | - Uroš Gašić
- University of Belgrade, Institute for Biological Research "Siniša Stanković" Natonal Institute of Republic of Serbia, Bulevar despota Stefana 142, 11060, Belgrade, Serbia.
| | - Ljiljana Topalić-Trivunović
- University of Banja Luka, Faculty of Technology, Vojvode Stepe Stepanovića 75, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
| | - Aleksandar Savić
- University of Banja Luka, Faculty of Technology, Vojvode Stepe Stepanovića 75, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
| | - Ana Velemir
- University of Banja Luka, Faculty of Technology, Vojvode Stepe Stepanovića 75, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
| | - Biljana Davidović-Plavšić
- University of Banja Luka, Faculty of Natural Sciences and Mathematics, Mladena Stojanovića 2, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
| | - Milica Šešić
- University of Banja Luka, Faculty of Natural Sciences and Mathematics, Mladena Stojanovića 2, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
| | - Nataša Lukić
- University of Hohenheim, Faculty of Agriculture, Institute of Landscape and Plant Ecology, Ottilie-Zeller-Weg 2, 70599, Stuttgart, Germany; University of Banja Luka, Faculty of Forestry, Bulevar vojvode Stepe Stepanovića 75a, 78000 Banja Luka, Republic of Srpska, Bosnia and Herzegovina.
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Wei L, Huang L, Du L, Sun Q, Chen C, Tang J, Teng J, Wei B. Structural Characterization and In Vitro Antioxidant, Hypoglycemic and Hypolipemic Activities of a Natural Polysaccharide from Liupao Tea. Foods 2023; 12:foods12112226. [PMID: 37297468 DOI: 10.3390/foods12112226] [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: 04/13/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
This study extracted and purified a natural polysaccharide (TPS-5) that has a molecular weight of 48.289 kDa from Liupao tea, a typical dark tea with many benefits to human health. TPS-5 was characterized as a pectin-type acidic polysaccharide. It has a backbone composed of → 2,4)- α- L-Rhap-(1) → 4)- α- D-GalAp-(1) →, with a branch composed of → 5)- α- L-Ara-(1 → 5,3)- α- L-Ara-(1 → 3)- β- D-Gal-(1 → 3,6)- β- D-Galp-(1) →. The in vitro biological activity evaluation illustrated that TPS-5 has free radical scavenging, ferric-ion-reducing, digestive enzyme inhibitory, and bile-salt-binding abilities. These results suggest that TPS-5 from Liupao tea has potential applications in functional foods or medicinal products.
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Affiliation(s)
- Lu Wei
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Institute of Food and Pharmaceutical Science, Guangxi Vocational University of Agriculture, Nanning 530007, China
| | - Li Huang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Lijuan Du
- Institute of Food and Pharmaceutical Science, Guangxi Vocational University of Agriculture, Nanning 530007, China
| | - Qinju Sun
- Institute of Food and Pharmaceutical Science, Guangxi Vocational University of Agriculture, Nanning 530007, China
| | - Can Chen
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Jie Tang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Jianwen Teng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Baoyao Wei
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
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3
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Ma Y, Xiu W, Wang X, Yu S, Luo Y, Gu X. Structural characterization and in vitro antioxidant and hypoglycemic activities of degraded polysaccharides from sweet corncob. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2022.103579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Van Do TN, Le TH, Nguyen HX, Vo TNT, Dang PH, Nguyen NT, Nguyen MTT. δ-Tocopherol derivatives from the leaves of Muntingia calabura L. Nat Prod Res 2021; 36:5524-5529. [PMID: 34933616 DOI: 10.1080/14786419.2021.2018589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
From an ethyl acetate-soluble fraction of the leaves of Muntingia calabura, one new trimeric δ-tocopherol derivative named as tocomuntin A (1), together with three known δ-tocopherol derivatives (2-4) were isolated. Their structures were elucidated based on the interpretation of NMR and MS spectroscopic data. In this work, δ-tocopherol (3) was found to have α-glucosidase inhibitory activity for the first time (IC50, 47.3 μM).
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Affiliation(s)
- Truong Nhat Van Do
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Tho Huu Le
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Hai Xuan Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Trang Ngoc Tran Vo
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Phu Hoang Dang
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Nhan Trung Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam.,Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
| | - Mai Thanh Thi Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam.,Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
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5
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Nguyen HX, Nguyen LT, Van Do TN, Le TH, Dang PH, Tran HM, Nguyen NT, Nguyen MTT. A new phenolic acid from the wood of Mangifera gedebe. Nat Prod Res 2019; 35:2579-2582. [PMID: 31642695 DOI: 10.1080/14786419.2019.1680666] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
From the methanol extract of the wood of Mangifera gedebe (Anacardiaceae), we had isolated a new secondary metabolite named gedebic acid (1) and six known compounds (2-7). Their chemical structures were determined by spectroscopic methods as well as comparing with data in the literature. All compounds were tested for α-glucosidase inhibitory activity. Compounds 4-7 showed more potent inhibitory activity, with IC50 values ranging from 45.3 to 142.6 μM, than that of a positive control acarbose (IC50, 214.5 μM).
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Affiliation(s)
- Hai Xuan Nguyen
- Faculty of Chemistry, VNUHCM-University of Science, Hochiminh City, Vietnam
| | - Loc Thanh Nguyen
- Faculty of Chemistry, VNUHCM-University of Science, Hochiminh City, Vietnam
| | - Truong Nhat Van Do
- Faculty of Chemistry, VNUHCM-University of Science, Hochiminh City, Vietnam
| | - Tho Huu Le
- Faculty of Chemistry, VNUHCM-University of Science, Hochiminh City, Vietnam
| | - Phu Hoang Dang
- Faculty of Chemistry, VNUHCM-University of Science, Hochiminh City, Vietnam
| | - Hung Manh Tran
- Faculty of Chemistry, VNUHCM-University of Science, Hochiminh City, Vietnam
| | - Nhan Trung Nguyen
- Faculty of Chemistry, VNUHCM-University of Science, Hochiminh City, Vietnam.,Cancer Research Laboratory, VNUHCM-University of Science, Hochiminh City, Vietnam
| | - Mai Thanh Thi Nguyen
- Faculty of Chemistry, VNUHCM-University of Science, Hochiminh City, Vietnam.,Cancer Research Laboratory, VNUHCM-University of Science, Hochiminh City, Vietnam
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Salehi B, Ata A, V. Anil Kumar N, Sharopov F, Ramírez-Alarcón K, Ruiz-Ortega A, Abdulmajid Ayatollahi S, Valere Tsouh Fokou P, Kobarfard F, Amiruddin Zakaria Z, Iriti M, Taheri Y, Martorell M, Sureda A, N. Setzer W, Durazzo A, Lucarini M, Santini A, Capasso R, Adrian Ostrander E, -ur-Rahman A, Iqbal Choudhary M, C. Cho W, Sharifi-Rad J. Antidiabetic Potential of Medicinal Plants and Their Active Components. Biomolecules 2019; 9:E551. [PMID: 31575072 PMCID: PMC6843349 DOI: 10.3390/biom9100551] [Citation(s) in RCA: 228] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/17/2019] [Accepted: 09/25/2019] [Indexed: 12/11/2022] Open
Abstract
Diabetes mellitus is one of the major health problems in the world, the incidence and associated mortality are increasing. Inadequate regulation of the blood sugar imposes serious consequences for health. Conventional antidiabetic drugs are effective, however, also with unavoidable side effects. On the other hand, medicinal plants may act as an alternative source of antidiabetic agents. Examples of medicinal plants with antidiabetic potential are described, with focuses on preclinical and clinical studies. The beneficial potential of each plant matrix is given by the combined and concerted action of their profile of biologically active compounds.
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Affiliation(s)
- Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam 44340847, Iran;
| | - Athar Ata
- Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, Winnipeg, MB R3B 2G3, Canada;
| | - Nanjangud V. Anil Kumar
- Department of Chemistry, Manipal Institute of Technology, Manipal University, Manipal 576104, India;
| | - Farukh Sharopov
- Department of Pharmaceutical Technology, Avicenna Tajik State Medical University, Rudaki 139, Dushanbe 734003, Tajikistan;
| | - Karina Ramírez-Alarcón
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepcion, Concepción 4070386, Chile;
| | - Ana Ruiz-Ortega
- Facultad de Educación y Ciencias Sociales, Universidad Andrés Bello, Autopista Concepción—Talcahuano, Concepción 7100, Chile;
| | - Seyed Abdulmajid Ayatollahi
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran; (S.A.A.); (F.K.); (Y.T.)
- Department of Pharmacognosy, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 11369, Iran
| | - Patrick Valere Tsouh Fokou
- Department of Biochemistry, Faculty of Science, University of Yaounde 1, Yaounde P.O. Box 812, Cameroon;
| | - Farzad Kobarfard
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran; (S.A.A.); (F.K.); (Y.T.)
- Department of Medicinal Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 11369, Iran
| | - Zainul Amiruddin Zakaria
- Laboratory of Halal Science Research, Halal Products Research Institute, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;
- Integrative Pharmacogenomics Institute (iPROMISE), Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, Bandar Puncak Alam Selangor 42300, Malaysia
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy
| | - Yasaman Taheri
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran; (S.A.A.); (F.K.); (Y.T.)
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepcion, Concepción 4070386, Chile;
- Universidad de Concepción, Unidad de Desarrollo Tecnológico, UDT, Concepción 4070386, Chile
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress, Laboratory of Physical Activity Sciences, and CIBEROBN—Physiopathology of Obesity and Nutrition, CB12/03/30038, University of Balearic Islands, E-07122 Palma de Mallorca, Spain;
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA;
| | - Alessandra Durazzo
- CREA—Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy; (A.D.); (M.L.)
| | - Massimo Lucarini
- CREA—Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy; (A.D.); (M.L.)
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano, 49-80131 Napoli, Italy
| | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy;
| | - Elise Adrian Ostrander
- Medical Illustration, Kendall College of Art and Design, Ferris State University, Grand Rapids, MI 49503, USA;
| | - Atta -ur-Rahman
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.-u.-R.); (M.I.C.)
| | - Muhammad Iqbal Choudhary
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; (A.-u.-R.); (M.I.C.)
| | - William C. Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, China
| | - Javad Sharifi-Rad
- Department of Pharmacology, Faculty of Medicine, Jiroft University of Medical Sciences, Jiroft 7861756447, Iran
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Pujirahayu N, Bhattacharjya DK, Suzuki T, Katayama T. α-Glucosidase Inhibitory Activity of Cycloartane-Type Triterpenes Isolated from Indonesian Stingless Bee Propolis and Their Structure-Activity Relationship. Pharmaceuticals (Basel) 2019; 12:ph12030102. [PMID: 31266160 PMCID: PMC6789647 DOI: 10.3390/ph12030102] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/21/2019] [Accepted: 06/26/2019] [Indexed: 01/19/2023] Open
Abstract
This study reports on the antioxidant activity and α-glucosidase inhibitory activity of five cycloartane-type triterpenes isolated from Indonesian stingless bee (Tetragonula sapiens Cockerell) propolis and their structure–activity relationships. The structure of the triterpenes was determined to include mangiferolic acid (1), Cycloartenol (2), ambonic acid (3), mangiferonic acid (4), and ambolic acid (5). The inhibitory test results of all isolated triterpenes against α-glucosidase showed a high potential for inhibitory activity with an IC50 range between 2.46 and 10.72 µM. Among the compounds tested, mangiferonic acid (4) was the strongest α-glucosidase inhibitor with IC50 2.46 µM compared to the standard (–)-epicatechin (1991.1 µM), and also had antioxidant activities with IC50 values of 37.74 ± 6.55 µM. The study on the structure–activity relationships among the compounds showed that the ketone group at C-3 and the double bonds at C-24 and C-25 are needed to increase the α-glucosidase inhibitory activity. The carboxylic group at C-26 is also more important for increasing the inhibitory activity compared with the methyl group. This study provides an approach to help consider the structural requirements of cycloartane-type triterpenes from propolis as α-glucosidase inhibitors. An understanding of these requirements is deemed necessary to find a new type of α-glucosidase inhibitor from the cycloartane-type triterpenes or to improve those inhibitors that are known to help in the treatment of diabetes.
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Affiliation(s)
- Niken Pujirahayu
- Laboratory of Biomass Chemistry, Faculty of Agriculture, Kagawa University, Kagawa 761-0795, Japan.
- Department of Forestry, Faculty of Forestry and Environmental Sciences, Halu Oleo University, Kendari 93232, Indonesia.
| | - Debu Kumar Bhattacharjya
- Laboratory of Biomass Chemistry, Faculty of Agriculture, Kagawa University, Kagawa 761-0795, Japan
- Department of Biochemistry, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Toshisada Suzuki
- Laboratory of Biomass Chemistry, Faculty of Agriculture, Kagawa University, Kagawa 761-0795, Japan
| | - Takeshi Katayama
- Laboratory of Biomass Chemistry, Faculty of Agriculture, Kagawa University, Kagawa 761-0795, Japan
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Dang PH, Nguyen HH, Truong HT, Do TN, Nguyen HX, Nguyen MT, Abe M, Takagi R, Nguyen NT. Two ring opened oxetane taxoids containing a C-20 benzoyloxy group from the roots of Taxus wallichiana Zucc. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nguyen NT, Dang PH, Vu NXT, Le TH, Nguyen MTT. Quinoliniumolate and 2H-1,2,3-Triazole Derivatives from the Stems of Paramignya trimera and Their α-Glucosidase Inhibitory Activities: In Vitro and in Silico Studies. JOURNAL OF NATURAL PRODUCTS 2017; 80:2151-2155. [PMID: 28726400 DOI: 10.1021/acs.jnatprod.7b00289] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
From a CHCl3-soluble extract of the stems of Paramignya trimera, two new alkaloids, (E)-2-(prop-1-enyl)-N-methylquinolinium-4-olate (1) and (R)-2-ethylhexyl 2H-1,2,3-triazole-4-carboxylate (2), were isolated. Their structures were elucidated based on the spectroscopic data interpretation. Compound 2 possesses α-glucosidase inhibitory activity, with an IC50 value of 137.9 μM. Molecular docking studies of 1 and 2 with human maltase-glucoamylase (MGAM) were performed for the first time; thus, the 2,3-diH+-1H-1,2,3-triazolium cation (2i) showed good interactions with both MGAM-N (2QMJ) and -C (3TOP) terminal subunits.
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Affiliation(s)
- Nhan T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, Vietnam National University, Ho Chi Minh City , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Phu H Dang
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Ngoc X T Vu
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Tho H Le
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Mai T T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, Vietnam National University, Ho Chi Minh City , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
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Dang PH, Nguyen HX, Nguyen HHT, Vo TD, Le TH, Phan THN, Nguyen MTT, Nguyen NT. Lignans from the Roots of Taxus wallichiana and Their α-Glucosidase Inhibitory Activities. JOURNAL OF NATURAL PRODUCTS 2017; 80:1876-1882. [PMID: 28581744 DOI: 10.1021/acs.jnatprod.7b00171] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
From an EtOAc-soluble extract of the roots of Taxus wallichiana, six new (1-6) and 11 known lignans were isolated. The structures of the new compounds were elucidated based on interpretation of spectroscopic data. (+)-7'-epi-Tsugacetal (1) is a rare aryltetralin-type lignan having a cis-orientation of H-7' and H-8'. Compounds 3-6 were identified as the first naturally occurring tetrahydrofuranoid lignans having a cis-orientation of H-7 and H-8. All tested compounds were found to possess α-glucosidase inhibitory activity, with formosanol (9) showing the most potent effect with an IC50 value of 35.3 μM.
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Affiliation(s)
- Phu H Dang
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Hai X Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Hanh H T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Thai D Vo
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Tho H Le
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Trong H N Phan
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Mai T T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, Vietnam National University, Ho Chi Minh City , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Nhan T Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, Vietnam National University, Ho Chi Minh City , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
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12
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Dang PH, Nguyen HX, Duong TTT, Tran TKT, Nguyen PT, Vu TKT, Vuong HC, Phan NHT, Nguyen MTT, Nguyen NT, Awale S. α-Glucosidase Inhibitory and Cytotoxic Taxane Diterpenoids from the Stem Bark of Taxus wallichiana. JOURNAL OF NATURAL PRODUCTS 2017; 80:1087-1095. [PMID: 28240909 DOI: 10.1021/acs.jnatprod.7b00006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
From a CH2Cl2 extract of the bark of Taxus wallichiana, six new taxoids, wallitaxanes A-F (1-6), were isolated, together with 29 known compounds. The structures of the new compounds were elucidated on the basis of spectroscopic data interpretation. Wallitaxane D (4) was identified as an opened oxetane-type taxoid having the first naturally occurring C(H)-20 acetal group, while wallitaxanes E (5) and F (6) are representative of the rare abeo-taxoid class. The isolated compounds were evaluated for their α-glucosidase inhibitory activity and for cytotoxicity against the HeLa human cervical cancer cell line. In the present work, taxanes were found to exhibit α-glucosidase inhibitory activity for the first time, and wallitaxane A (1) showed the most potent effect, with an IC50 value of 3.6 μM. In turn, 7-epi-taxol (16) and 7-epi-10-deacetyltaxol (17) showed IC50 values of 0.05 and 0.085 nM, respectively, against HeLa cells.
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Affiliation(s)
- Phu Hoang Dang
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Hai Xuan Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Truc Thanh Thi Duong
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Thao Kim Thi Tran
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Phuc Thi Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Trang Kieu Thi Vu
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Hung Chi Vuong
- Tay Nguyen Herbals JSC , Tu Tra Ward, Don Duong District, Lam Dong Province Vietnam
| | - Nguyen Huu Trong Phan
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Mai Thanh Thi Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, Vietnam National University, Ho Chi Minh City , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Nhan Trung Nguyen
- Faculty of Chemistry, VNUHCM-University of Science , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, Vietnam National University, Ho Chi Minh City , 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam
| | - Suresh Awale
- Division of Natural Drug Discovery, Institute of Natural Medicine, University of Toyama , 2630 Sugitani, Toyama 930-0194, Japan
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