101
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Bule MH, Esfandyari R, Tafesse TB, Amini M, Faramarzi MA, Abdollahi M. Synthesis, Molecular Docking and α-Glucosidase Inhibitory Activity Study of 2,4,6-triaryl Pyrimidine Derivatives. LETT DRUG DES DISCOV 2020. [DOI: 10.2174/1570180817666200103130536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
α-Glucosidase inhibitors hinder the carbohydrate digestion and play an
important role in the treatment of diabetes mellitus. α-glucosidase inhibitors available on the market
are acarbose, miglitol, and voglibose. However, the use of acarbose is diminishing due to related
side effects like diarrhea, bloating and abdominal distension.
Objectives:
This study aimed to synthesize 2,4,6-triaryl pyrimidines derivatives, screen their α-
glucosidase inhibitory activity, perform kinetic and molecular docking studies.
Methods:
A series of 2,4,6-triaryl pyrimidine derivatives were synthesized and their α-glucosidase
inhibitory activity was screened in vitro. Pyrimidine derivatives 4a-m were synthesized via a twostep
reaction with a yield between 49 and 93%. The structure of the synthesized compounds was
confirmed by different spectroscopic techniques (IR, NMR and MS). The in vitro α-glucosidase
inhibition activities of the synthesized compounds 4a-m was also evaluated against Saccharomyces
cerevisiae α-glucosidase.
Results and Discussion:
The majority of synthesized compounds had α-glucosidase inhibitory
activity. Particularly compounds 4b and 4g were the most active compounds with an IC50 value of
125.2± 7.2 and 139.8 ± 8.1 μM respectively. The kinetic study performed for the most active
compound 4b revealed that the compound was a competitive inhibitor of Saccharomyces cerevisiae
α-glucosidase with Ki of 122 μM. The molecular docking study also revealed that the two
compounds have important binding interactions with the enzyme active site.
Conclusion:
2,4,6-triarylpyrimidine derivative 4a-m were synthesized and screened for α-
glucosidase inhibitory activity. Most of the synthesized compounds possess α-glucosidase inhibitory
activity, and compound 4b demonstrated the most significant inhibitory action as compared to
acarbose.
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Affiliation(s)
- Mohammed Hussen Bule
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Roghaieh Esfandyari
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Tadesse Bekele Tafesse
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Amini
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Faramarzi
- The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
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102
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Synthesis of 4-alkylaminoimidazo[1,2-a]pyridines linked to carbamate moiety as potent α-glucosidase inhibitors. Mol Divers 2020; 25:2399-2409. [DOI: 10.1007/s11030-020-10137-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 08/25/2020] [Indexed: 02/05/2023]
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103
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Ahmed MU, Ibrahim A, Dahiru NJ, Mohammed HS. Alpha Amylase Inhibitory Potential and Mode of Inhibition of Oils from Allium sativum (Garlic) and Allium cepa (Onion). CLINICAL MEDICINE INSIGHTS-ENDOCRINOLOGY AND DIABETES 2020; 13:1179551420963106. [PMID: 33088187 PMCID: PMC7545766 DOI: 10.1177/1179551420963106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 09/10/2020] [Indexed: 11/16/2022]
Abstract
Background Alpha amylase inhibitors are used in the treatment of type II diabetes mellitus. Allium sativum and Allium cepa, widely consumed as spices have several medicinal uses which include their traditional use in the management of diabetes. This study was conducted to investigate the alpha amylase inhibitory potential and mode of inhibition of A. sativum and A. cepa oils. Method Oil was extracted from dried bulb of A. sativum and A. cepa by Soxhlet extraction. The α-amylase inhibitory potential of the 2 oils were evaluated. The mode of inhibition of the oils were determined from the lineweaver-burk plot and the kinetic parameters obtained from the lineweaver - burk plot. Result A. sativum oil had 58.13 ± 1.09 and 69.8 ± 1.11 percent inhibition at 5.0 and 7.0% concentrations respectively while A. cepa oil had 55.45 ± 1.35, 59.73 ± 1.11 and 65.21 ± 1.11 percent inhibition at 5.0, 7.5 and 10% concentrations respectively. The IC50 values for A. sativum oil, A. cepa oil and acarbose were 3.0 ± 0.02%, 4.4 ± 0.03% and 14.1 ± 0.09% respectively. The lineweaver - burk plot showed that the Vmax of the 2 oils did not change when compared with that of the no inhibitor (no oil) but the Km increased. Conclusion These findings indicate that A. sativum and A. cepa oils are competitive inhibitors of α- amylase and can both be used in the treatment of type II diabetes mellitus. A. sativum oil is a better inhibitor than A. cepa oil.
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Affiliation(s)
| | - Adamu Ibrahim
- Department of Biochemistry, Adamawa State University, Mubi, Nigeria
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104
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Djermane N, Gali L, Arhab R, Gherraf N, Bensouici C, Erenler R, Gok M, Abdessamed A. Chemical composition and in vitro evaluation of antioxidant, antimicrobial, and enzyme inhibitory activities of Erucaria uncata and Thymeleae hirsuta. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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105
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Vasarri M, Barletta E, Vinci S, Ramazzotti M, Francesconi A, Manetti F, Degl’Innocenti D. Annona cherimola Miller Fruit as a Promising Candidate against Diabetic Complications: An In Vitro Study and Preliminary Clinical Results. Foods 2020; 9:foods9101350. [PMID: 32987622 PMCID: PMC7598707 DOI: 10.3390/foods9101350] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/17/2020] [Accepted: 09/19/2020] [Indexed: 02/07/2023] Open
Abstract
Diabetes is a chronic metabolic disease with a strong social impact worldwide. Under chronic hyperglycemia, protein glycation strongly contributes to diabetes-related complications onset. Anti-glycation agents and inhibitors of α-glucosidase are often therapeutically used to control postprandial glycemia in order to prevent development of long-term diabetic complications. Given drug resistance and adverse effects of conventional antidiabetic therapies, the discovery of new effective and non-toxic naturally occurring compounds is needed to prevent and/or to manage life-threatening diabetic complications. Annona cherimola Miller fruit has been used in Mexican traditional medicine as natural remedy against diabetes. In this work, the in vitro anti-glycation and anti-α-glucosidase roles of Annona cherimola Miller pulp extract (CE) were investigated. Moreover, healthy and diabetic subjects were enrolled in a cross-over design intervention study aimed at investigating the effects of pulp intake on postprandial glycemia. This work shows that CE was able to inhibit albumin glycation in vitro and to inhibit α-glucosidase enzyme. Furthermore, the pulp intake did not contribute to an increase in postprandial glycemia, making it a suitable source of health-promoting phytonutrients and a potential functional food in diabetics and pre-diabetics diet.
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Affiliation(s)
- Marzia Vasarri
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.V.); (E.B.); (S.V.); (M.R.)
| | - Emanuela Barletta
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.V.); (E.B.); (S.V.); (M.R.)
| | - Santina Vinci
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.V.); (E.B.); (S.V.); (M.R.)
| | - Matteo Ramazzotti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.V.); (E.B.); (S.V.); (M.R.)
| | - Andrea Francesconi
- Santa Maria Annunziata Hospital, Diabetology and Metabolic Diseases Unit, Via dell’Antella 58, Ponte a Niccheri, Bagno a Ripoli, 50012 Florence, Italy; (A.F.); (F.M.)
| | - Francesco Manetti
- Santa Maria Annunziata Hospital, Diabetology and Metabolic Diseases Unit, Via dell’Antella 58, Ponte a Niccheri, Bagno a Ripoli, 50012 Florence, Italy; (A.F.); (F.M.)
| | - Donatella Degl’Innocenti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.V.); (E.B.); (S.V.); (M.R.)
- Correspondence:
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106
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Park D, Barka GD, Yang EY, Cho MC, Yoon JB, Lee J. Identification of QTLs Controlling α-Glucosidase Inhibitory Activity in Pepper ( Capsicum annuum L.) Leaf and Fruit Using Genotyping-by-Sequencing Analysis. Genes (Basel) 2020; 11:E1116. [PMID: 32977701 PMCID: PMC7650571 DOI: 10.3390/genes11101116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 01/14/2023] Open
Abstract
Diabetes mellitus, a group of metabolic disorders characterized by hyperglycemia, is one of the most serious and common diseases around the world and is associated with major complications such as diabetic neuropathy, retinopathy, and cardiovascular diseases. A widely used treatment for non-insulin-dependent diabetes is α-glucosidase inhibitors (AGIs) such as acarbose, which hinders hydrolytic cleavage of disaccharides and retard glucose absorption. The ability to inhibit α-glucosidase activity has been reported in leaf and fruit of pepper (Capsicum annuum L.). In this study, we aimed to identify quantitative trait loci (QTLs) controlling α-glucosidase inhibitory activity (AGI activity) in pepper leaf and fruit using enzyme assay and genotyping-by-sequencing (GBS) analysis. The AGI activity at three stages of leaf and one stage of fruit development was analyzed by 96 F2 individuals. GBS analysis identified 17,427 SNPs that were subjected to pepper genetic linkage map construction. The map, consisting of 763 SNPs, contained 12 linkage groups with a total genetic distance of 2379 cM. QTL analysis revealed seven QTLs (qAGI1.1, qAGI11.1, qAGI5.1, qAGI9.1, qAGI12.1, qAGI5.2, and qAGI12.2) controlling AGI activity in pepper leaf and fruit. The QTLs for AGI activity varied by plant age and organ. This QTL information is expected to provide a significant contribution to developing pepper varieties with high AGI activity.
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Affiliation(s)
- Doie Park
- Department of Horticulture, Institute of Agricultural Science & Technology, Jeonbuk National University, Jeonju 54896, Korea; (D.P.); (G.D.B.)
| | - Geleta Dugassa Barka
- Department of Horticulture, Institute of Agricultural Science & Technology, Jeonbuk National University, Jeonju 54896, Korea; (D.P.); (G.D.B.)
| | - Eun-Young Yang
- Vegetable Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Wanju 55365, Korea; (E.-Y.Y.); (M.-C.C.)
| | - Myeong-Cheoul Cho
- Vegetable Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Wanju 55365, Korea; (E.-Y.Y.); (M.-C.C.)
| | - Jae Bok Yoon
- Research and Development Unit, Pepper and Breeding Institute, K-Seed Valley, Gimje 54324, Korea;
| | - Jundae Lee
- Department of Horticulture, Institute of Agricultural Science & Technology, Jeonbuk National University, Jeonju 54896, Korea; (D.P.); (G.D.B.)
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107
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Radünz M, Mota Camargo T, Dos Santos Hackbart HC, Blank JP, Hoffmann JF, Moro Stefanello F, da Rosa Zavareze E. Encapsulation of broccoli extract by electrospraying: Influence of in vitro simulated digestion on phenolic and glucosinolate contents, and on antioxidant and antihyperglycemic activities. Food Chem 2020; 339:128075. [PMID: 33152868 DOI: 10.1016/j.foodchem.2020.128075] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/19/2020] [Accepted: 09/10/2020] [Indexed: 12/18/2022]
Abstract
Compounds present in broccoli are vulnerable to the digestive process, and encapsulation becomes an alternative for their preservation. The encapsulation of broccoli extract, by electrospraying, was performed with the purpose of evaluating the effect of in vitro simulated digestion on individual compounds and antioxidant and antihyperglycemic potentials. Each digestion fraction was evaluated by chromatography, as well as for antioxidant activity and antihyperglycemic potential. The encapsulated extract showed high encapsulation efficiency and spherical morphology. Losses in the levels of phenolic compounds and glucosinolates were found in both extracts, considering the fractions submitted to digestion. The digestion promoted an increase in the inhibition of hydroxyl, nitric oxide and α-amylase, as well as a decrease in the inhibition of α-glucosidase in both extracts, when compared to undigested fractions. Thus, the digestion affects the compounds content in both encapsulated and unencapsulated extracts. However, they still promote the control of oxidative processes and hyperglycemia.
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Affiliation(s)
- Marjana Radünz
- Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900 Pelotas, RS, Brazil.
| | - Taiane Mota Camargo
- Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900 Pelotas, RS, Brazil
| | - Helen Cristina Dos Santos Hackbart
- Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900 Pelotas, RS, Brazil
| | - João Pedro Blank
- Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900 Pelotas, RS, Brazil
| | - Jessica Fernanda Hoffmann
- Instituto Tecnológico em Alimentos para a Saúde - itt Nutrifor, Universidade do Vale do Rio dos Sinos, CEP 93022-750 São Leopoldo, RS, Brazil
| | - Francieli Moro Stefanello
- Programa de Pós-Graduação em Bioquímica e Bioprospecção - Laboratório de 12 Biomarcadores, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, CEP 96010-900 Pelotas, RS, Brazil
| | - Elessandra da Rosa Zavareze
- Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900 Pelotas, RS, Brazil
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108
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Etsassala NGER, Ndjoubi KO, Mbira TJ, Pearce B, Pearce K, Iwuoha EI, Hussein AA, Benjeddou M. Glucose-Uptake Activity and Cytotoxicity of Diterpenes and Triterpenes Isolated from Lamiaceae Plant Species. Molecules 2020; 25:molecules25184129. [PMID: 32927596 PMCID: PMC7570927 DOI: 10.3390/molecules25184129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/11/2020] [Accepted: 08/14/2020] [Indexed: 12/01/2022] Open
Abstract
The prevalence of diabetes mellitus (DM), considered one of the most common metabolic disorders, has dramatically increased and resulted in higher rates of morbidity and mortality around the world in the past decade. It is well known that insulin resistance in target tissues and a deficiency in insulin secretion from pancreatic β-cells are the main characteristics of type 2 diabetes. The aim of this study was the bio-evaluation of compounds isolated from three selected plant species: namely, Salvia africana-lutea, Leonotis ocymifolia, and Plectranthus madagascariensis, for their glucose-uptake ability. Methanolic extracts were produced from the aerial parts of each plant. Compounds were identified using different spectroscopic techniques. The glucose-uptake ability of each compound was then evaluated in mammalian cells using 2-deoxyglucose-6-phosphate. The cytotoxicity of each compound was established via the MTT assay. Chromatographic purification of the three plant species yielded sixteen pure terpenoids. Compounds 1 (p = 0.0031), 8 (p = 0.0053), and 6 (p = 0.0086) showed a marked increase in glucose uptake, respectively. Additionally, 1, 4, and 6 exhibited cytotoxicity toward mammalian tissue with a decrease in cell viability of ~70%, ~68%, and ~67%, respectively. The results suggested that several compounds demonstrated a marked increase in glucose uptake, while two of the compounds exhibited signs of cytotoxicity. It may, therefore, be suggested that these compounds be considered as potential candidates for novel plant-derived alternative therapies in the treatment of type 2 diabetes.
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Affiliation(s)
- Ninon G. E. R. Etsassala
- Department of Horticultural Sciences, Cape Peninsula University of Technology, Symphony Rd., Bellville 7535, South Africa;
| | - Kadidiatou O. Ndjoubi
- Chemistry Department, Cape Peninsula University of Technology, Symphony Rd., Bellville 7535, South Africa; (K.O.N.); (T.J.M.); (A.A.H.)
| | - Thilly J. Mbira
- Chemistry Department, Cape Peninsula University of Technology, Symphony Rd., Bellville 7535, South Africa; (K.O.N.); (T.J.M.); (A.A.H.)
| | - Brendon Pearce
- Precision Medicine Laboratory, Department of Biotechnology, 2nd Floor, Life Science Building, University of the Western Cape, Cape Town 7530, South Africa; (B.P.); (K.P.)
| | - Keenau Pearce
- Precision Medicine Laboratory, Department of Biotechnology, 2nd Floor, Life Science Building, University of the Western Cape, Cape Town 7530, South Africa; (B.P.); (K.P.)
| | - Emmanuel I. Iwuoha
- Chemistry Department, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa;
| | - Ahmed A. Hussein
- Chemistry Department, Cape Peninsula University of Technology, Symphony Rd., Bellville 7535, South Africa; (K.O.N.); (T.J.M.); (A.A.H.)
| | - Mongi Benjeddou
- Precision Medicine Laboratory, Department of Biotechnology, 2nd Floor, Life Science Building, University of the Western Cape, Cape Town 7530, South Africa; (B.P.); (K.P.)
- Correspondence: ; Tel.: +27-21-959-2080; Fax: +27-21-959-3505
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109
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Huseynova A, Kaya R, Taslimi P, Farzaliyev V, Mammadyarova X, Sujayev A, Tüzün B, Kocyigit UM, Alwasel S, Gulçin İ. Design, synthesis, characterization, biological evaluation, and molecular docking studies of novel 1,2-aminopropanthiols substituted derivatives as selective carbonic anhydrase, acetylcholinesterase and α-glycosidase enzymes inhibitors. J Biomol Struct Dyn 2020; 40:236-248. [DOI: 10.1080/07391102.2020.1811772] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Afat Huseynova
- Laboratory of ‘Fine Organic Synthesis’ of Baku State University, Baku, Azerbaijan
| | - Ruya Kaya
- Agri Ibrahim Cecen University Central Research and Application Laboratory, Agri, Turkey
- Faculty of Science, Department of Chemistry, Atatürk University, Erzurum, Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science, Bartin University, Bartin, Turkey
| | - Vagif Farzaliyev
- Laboratory of Theoretical Bases of Synthesis and Action Mechanism of Additives, Institute of Chemistry of Additives, Azerbaijan National Academy of Sciences, Baku, Azerbaijan
| | - Xadija Mammadyarova
- Laboratory of Theoretical Bases of Synthesis and Action Mechanism of Additives, Institute of Chemistry of Additives, Azerbaijan National Academy of Sciences, Baku, Azerbaijan
| | - Afsun Sujayev
- Laboratory of Theoretical Bases of Synthesis and Action Mechanism of Additives, Institute of Chemistry of Additives, Azerbaijan National Academy of Sciences, Baku, Azerbaijan
| | - Burak Tüzün
- Department of Chemistry, Faculty of Science, Sivas Cumhuriyet University, Sivas, Turkey
| | - Umit M. Kocyigit
- Department of Basic Pharmaceutical Sciences, Division of Biochemistry, Faculty of Pharmacy, Sivas Cumhuriyet University, Sivas, Turkey
| | - Saleh Alwasel
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - İlhami Gulçin
- Faculty of Science, Department of Chemistry, Atatürk University, Erzurum, Turkey
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110
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Swain A, Puttaswamy H. α-Glucosidase Inhibition Kinetics and Molecular Docking Studies with
the Bioactive Constituents from Canna indica L. Rhizome Extract. ACTA ACUST UNITED AC 2020. [DOI: 10.14233/ajchem.2020.22727] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The present study investigated the phytochemical constituents from Canna indica rhizome acetone extract,
which was earlier reported to possess α-glucosidase inhibiting potential. Different fractions were collected
from column chromatography of the acetone extract and the in vitro enzyme inhibition and the kinetic
study was performed with the active fraction. The active fraction exhibited competitive inhibition of
α-glucosidase. HRLC-MS/MS technique was used to identify the lead compounds from the active
fraction. The major compounds were psoromic acid, usnic acid and rosmarinic acid. Molecular docking
study of the compounds with the crystal structure of α-glucosidase was performed using ParDOCK.
Psoromic acid and usnic acid exhibited strong binding affinity with the active site nucleophiles Asp349
and Asp212, respectively. Usnic acid also stabilized the catalytic residue Glu274. Rosmarinic acid
formed multiple hydrogen bonds with the catalytic residue Glu274 and also bonded to non-catalytic
residues Gln276, Arg312 and Glu408. The study illustrated informative data on the phytochemical
constituents from Canna indica rhizome as α-glucosidase inhibitor and as potential candidates for the
development of antidiabetic drugs.
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Affiliation(s)
- Ayusman Swain
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi-110016, India
| | - Hariprasad Puttaswamy
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi-110016, India
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111
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Antihyperglycemic Effects of Annona diversifolia Safford and Its Acyclic Terpenoids: α-Glucosidase and Selective SGLT1 Inhibitiors. Molecules 2020; 25:molecules25153361. [PMID: 32722136 PMCID: PMC7436034 DOI: 10.3390/molecules25153361] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/18/2020] [Accepted: 07/21/2020] [Indexed: 01/28/2023] Open
Abstract
Annona diversifolia Safford and two acyclic terpenoids were evaluated to determine their antihyperglycemic activity as potential α-glucosidase and selective SGLT-1 inhibitiors. Ethanolic extract (EEAd), chloroformic (CHCl3Fr), ethyl acetate (EtOAcFr), aqueous residual (AcRFr), secondary 5 (Fr5) fractions, farnesal (1), and farnesol (2) were evaluated on normoglycemic and streptozocin-induced diabetic mice. EEAd, CHCl3Fr, Fr5, (1) and (2) showed antihyperglycemic activity. The potential as α-glucosidase inhibitors of products was evaluated with oral sucrose and lactose tolerance (OSTT and OLTT, respectively) and intestinal sucrose hydrolysis (ISH) tests; the potential as SGLT-1 inhibitors was evaluated using oral glucose tolerance (OGTT), intestinal glucose absorption (IGA), and urinary glucose excretion (UGE) tests. In OSTT and OLTT, all treatments showed significant activity at two and four hours. In ISH, half maximal effective concentrations (CE50) of 565, 662 and 590 μg/mL, 682 and 802 μM were calculated, respectively. In OGTT, all treatments showed significant activity at two hours. In IGA, CE50 values of 1059, 783 and 539 μg/mL, 1211 and 327 μM were calculated, respectively. In UGE Fr5, (1) and (2) showed significant reduction of the glucose excreted compared with canagliflozin. These results suggest that the antihyperglycemic activity is mediated by α-glucosidase and selective SGLT-1 inhibition.
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112
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Chanda J, Mukherjee PK, Kar A, Maitra PK, Singha S, Halder PK, Gajbhiye R, Vishnuvardh R. LC-QTOF-MS-based metabolite profiling and evaluation of α-glucosidase inhibitory kinetics of Coccinia grandis fruit. Biomed Chromatogr 2020; 34:e4950. [PMID: 32678956 DOI: 10.1002/bmc.4950] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/08/2020] [Accepted: 07/14/2020] [Indexed: 11/10/2022]
Abstract
Coccinia grandis is an important food crop of the Cucurbitaceae family, widely used for culinary purposes in India. It is reported to possess hypoglycemic, hypolipidemic and antioxidant activities. The current study was aimed to explore the inhibition kinetics as well as major constituents of the active fraction of C. grandis against α-glucosidase. The kinetic study was performed through spectrophotometric assay, with p-nitrophenyl-α-d-glucopyranoside as a substrate with varying concentrations. An in vitro antioxidant study was performed by DPPH assay. In addition, UPLC-QTOF-MS analysis was carried out for metabolite profiling of the bioactive fraction of C. grandis. The results showed that the difference between the α-glucosidase inhibitory activity of the ethyl acetate fraction of C. grandis (EFCG) (IC50 2.43 ± 0.27 mg/ml), and standard inhibitor, acarbose (2.08 ± 0.19 mg/ml), was not statistically significant at a P-value of 0.05. The enzyme kinetics confirmed the inhibition mode in a mixed manner. The EFCG also showed the highest antioxidant activity (101.74 ± 1.95 μg/ml) among all of the fractions. A significant correlation between antioxidant and α-glucosidase inhibitory activity of EFCG was observed. The LC-QTOF-MS study of the EFCG putatively identified 35 metabolites, which may be responsible for its antioxidant and α-glucosidase inhibitory properties. Thus, C. grandis fruits can serve as a functional food to address diabetes-related disorders associated with α-glucosidase.
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Affiliation(s)
- Joydeb Chanda
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Pulok K Mukherjee
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India.,Institute of Bio-resources and Sustainable Development, A National Institute under Department of Biotechnology, Ministry of Science and Technology, Government of India, Imphal, India
| | - Amit Kar
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Prasanta Kr Maitra
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Seha Singha
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Pallab Kanti Halder
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Rahul Gajbhiye
- National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, India
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113
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Mugaranja KP, Kulal A. Alpha glucosidase inhibition activity of phenolic fraction from Simarouba glauca: An in-vitro, in-silico and kinetic study. Heliyon 2020; 6:e04392. [PMID: 32671273 PMCID: PMC7350133 DOI: 10.1016/j.heliyon.2020.e04392] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/31/2020] [Accepted: 07/01/2020] [Indexed: 01/18/2023] Open
Abstract
A phenolic rich fraction purified from Simarouba glauca leaves was effective in alpha glucosidase inhibition. The purified fraction named 'fraction-14' had shown significant inhibition of yeast alpha glucosidase enzyme activity (IC50 = 2.4 ± 0.4 μg/mL) when compared to anti-diabetic drug acarbose (IC50 = 2450 ± 24 μg/mL). The purified fraction also had reasonable DPPH (IC50 = 14.4 ± 0.1 μg/mL) and ABTS (IC50 = 7.6 ± 0.5 μg/mL) free radical scavenging activity when compared to the standard ascorbic acid. The LC-MS analysis of bioactive 'fraction-14' revealed four compounds, eclalbasaponin-v (1), cyanidin-3-O-(2'galloyl)-galactoside (2), kaempferol-3-O-glucoside (3) and kaempferol-3-O-pentoside (4) for the first time in S. glauca in this study. The kinetic study of the 'fraction-14' indicates a mixed type of inhibition on the alpha glucosidase enzyme with K i , 6.2 μg/mL. Docking studies showed promising binding energy for the compounds 2 (-7.769 kJ/mol), 3 (-7.04 kJ/mol) and 4 (-7.127 kJ/mol) against yeast alpha glucosidase which was better than acarbose (-6.867 kJ/mol). In conclusion, the phenolic rich fraction from S. glauca possessing good in-vitro antioxidant property and alpha glucosidase enzyme inhibition potential along with mixed inhibition kinetics. Also, better binding energy of compounds (1, 2 & 3) appears to contain potential lead-molecule for antidiabetic therapy.
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Affiliation(s)
- Kirana P. Mugaranja
- Biological Sciences Division, Poornaprajna Institute of Scientific Research, Bidalur Post, Devanahalli, Bangalore Rural, 562110, India
- Manipal Academy of Higher Education, Manipal, 576104, India
| | - Ananda Kulal
- Biological Sciences Division, Poornaprajna Institute of Scientific Research, Bidalur Post, Devanahalli, Bangalore Rural, 562110, India
- Corresponding author.
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114
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Yousof Ali M, Zaib S, Mizanur Rahman M, Jannat S, Iqbal J, Kyu Park S, Seog Chang M. Poncirin, an orally active flavonoid exerts antidiabetic complications and improves glucose uptake activating PI3K/Akt signaling pathway in insulin resistant C2C12 cells with anti-glycation capacities. Bioorg Chem 2020; 102:104061. [PMID: 32653611 DOI: 10.1016/j.bioorg.2020.104061] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/18/2020] [Accepted: 06/28/2020] [Indexed: 12/26/2022]
Abstract
Poncirin, a natural flavanone glycoside present abundantly in many citrus fruits, contains an extensive range of biological activities. However, the antidiabetic mechanism of poncirin is unexplored yet. In this study, we examined the anti-diabetic prospective of poncirin by evaluating its ability to inhibit protein tyrosine phosphatase 1B (PTP1B), α-glucosidase, human recombinant AR (HRAR), rat lens aldose reductase (RLAR), and advanced glycation end-product (AGE) formation (IC50 = 7.76 ± 0.21, 21.31 ± 1.26, 3.56 ± 0.33, 11.91 ± 0.21, and 3.23 ± 0.09 µM, respectively). Kinetics data and docking studies showed the lowest binding energy and highestaffinityforthemixed and competitivetypeof inhibitorsof poncirin. Moreover, the molecular mechanisms underlying the antidiabetic outcomes of poncirin in insulin resistant C2C12 skeletal muscle cells were explored, which significantly increased glucose uptake and decreased the expression of PTP1B in C2C12 cells. Consequently, poncirin increased GLUT-4 expression level by activating the IRS-1/PI3K/Akt/GSK-3 signaling pathway. Moreover, poncirin (0.5-50 µM) remarkably inhibited the formation of fluorescent AGE, nonfluorescent CML, fructosamine, and β-cross amyloid structures in glucose-fructose-induced BSA glycation during 4 weeks of study. Poncirin also notably prevented protein oxidation demonstrated with decreasing the protein carbonyl and the consumption of protein thiol in the dose-dependent manner. The results clearly expressed the promising activity of poncirin for the therapy of diabetes and its related complications.
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Affiliation(s)
- Md Yousof Ali
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada.
| | - Sumera Zaib
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan; Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore 54590, Pakistan
| | - M Mizanur Rahman
- Department of Biotechnology and Genetic Engineering, Islamic University, Kushtia 7003, Bangladesh
| | - Susoma Jannat
- Department of Biochemistry and Molecular Biology, University of Calgary, T2N 1N4 Alberta, Canada
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Seong Kyu Park
- Department of Korean Medicine, Graduate School, Kyung Hee University, 26, Kyunghee dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Mun Seog Chang
- Department of Korean Medicine, Graduate School, Kyung Hee University, 26, Kyunghee dae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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115
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Islam S, Alam MB, Ahmed A, Lee S, Lee SH, Kim S. Identification of secondary metabolites in Averrhoa carambola L. bark by high-resolution mass spectrometry and evaluation for α-glucosidase, tyrosinase, elastase, and antioxidant potential. Food Chem 2020; 332:127377. [PMID: 32619942 DOI: 10.1016/j.foodchem.2020.127377] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 05/20/2020] [Accepted: 06/15/2020] [Indexed: 02/02/2023]
Abstract
In this study, paper spray ionization (PSI) coupled to high-resolution mass spectrometry has been used to identify secondary metabolites from ethanol extracts of Averrhoa carambola L. bark (ABE). Various phytoconstituents including phenolic acids, flavonoids, xanthones and terpenoids were identified from the bark. ABE shows potential antioxidant activity as well as markedly inhibited α-glucosidase, elastase, and tyrosinase enzyme activities in a concentration-dependent fashion, respectively. ABE significantly inhibited α-glucosidase at lower concentration (IC50: 7.15 ± 0.06 μg/mL). Identified compounds were tested to understand the biological activity of ABE. Experimental results suggest that norathyriol, one of the identified compounds, has significant α-glucosidase (IC50: 0.81 ± 0.01 μg/mL) inhibition and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities (IC50: 4.90 ± 0.09 μg/mL). At a dose of 100 mg/kg, ABE significantly decreased the postprandial blood glucose level in oral glucose tolerance test (OGTT). This study shows that carambola bark can be a potential source of bioactive compounds.
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Affiliation(s)
- Syful Islam
- Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea; Department of Environment, Munshiganj District Office, Munshiganj 1500, Bangladesh
| | - Md Badrul Alam
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Arif Ahmed
- Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seulgidaun Lee
- Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sang-Han Lee
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea; Mass Spectrometry Converging Research Center and Green-Nano Materials Research Center, Daegu 41566, Republic of Korea.
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116
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Kato-Schwartz CG, Corrêa RCG, de Souza Lima D, de Sá-Nakanishi AB, de Almeida Gonçalves G, Seixas FAV, Haminiuk CWI, Barros L, Ferreira ICFR, Bracht A, Peralta RM. Potential anti-diabetic properties of Merlot grape pomace extract: An in vitro, in silico and in vivo study of α-amylase and α-glucosidase inhibition. Food Res Int 2020; 137:109462. [PMID: 33233136 DOI: 10.1016/j.foodres.2020.109462] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/13/2020] [Accepted: 06/16/2020] [Indexed: 12/22/2022]
Abstract
A practical approach to control glycemia in diabetes is to use plant natural products that delay hydrolysis of complex sugars and promote the diminution of the release of glucosyl units into the blood plasma. Polyphenolics have been described as being effective in inhibiting amylases and α-glucosidases. Grape pomace is an important sub product of the wine industry, still rich in many compounds such as polyphenolics. In this context, the purpose of this study was to search for possible effects of a grape pomace extract on salivary and pancreatic α-amylases and α-glucosidase, as well as on intestinal glucose absorption. The Merlot grape pomace extract (MGPE) was prepared using a hydroalcoholic mixture (40% ethanol + 60% water). In vitro inhibition was quantified using potato starch (for amylases) and maltose (for α-glucosidase) as substrates. In vivo inhibition was evaluated by running starch and maltose tolerance tests in rats with or without administration of MGPE. Ranking of the extract compounds for its affinity to the α-amylases was accomplished by computer simulations using three different programs. Both α-amylases, pancreatic and salivary, were inhibited by the MGPE. No inhibition on α-glucosidase, however, was detected. The IC50 values were 90 ± 10 μg/mL and 143 ± 15 μg/mL for salivary and pancreatic amylases, respectively. Kinetically this inhibition showed a complex pattern, with multiple binding of the extract constituents to the enzymes. Furthermore, the in silico docking simulations indicated that several phenolic substances, e.g., peonidin-3-O-acetylglucoside, quercetin-3-O-glucuronide and isorhamnetin-3-O-glucoside, besides catechin, were the most likely polyphenols responsible for the α-amylase inhibition caused by MGPE. The hyperglycemic burst, an usual phenomenon that follows starch administration, was substantially inhibited by the MGPE. Our results suggest that the MGPE can be adequate for maintaining normal blood levels after food ingestion.
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Affiliation(s)
- Camila Gabriel Kato-Schwartz
- Department of Biochemistry, and Post-graduate Program of Food Science, State University of Maringa, Parana 87020-900, Brazil
| | - Rúbia Carvalho Gomes Corrêa
- Program of Master in Science, Technology and Food Safety, Cesumar Institute of Science Technology and Innovation (ICETI), University Center of Maringa (UniCesumar), Parana 87050-390, Brazil; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Diego de Souza Lima
- Department of Technology, and Post-graduate Program of Molecular and Cell Biology, State University of Maringa, Parana 87020-900, Brazil
| | | | - Geferson de Almeida Gonçalves
- Department of Biochemistry, and Post-graduate Program of Food Science, State University of Maringa, Parana 87020-900, Brazil
| | - Flavio Augusto Vicente Seixas
- Department of Technology, and Post-graduate Program of Molecular and Cell Biology, State University of Maringa, Parana 87020-900, Brazil
| | - Charles W I Haminiuk
- Biotechnology Laboratory, Chemistry and Biology Department, Federal University of Technology - Paraná, 81280-340, Brazil
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Adelar Bracht
- Department of Biochemistry, and Post-graduate Program of Food Science, State University of Maringa, Parana 87020-900, Brazil
| | - Rosane Marina Peralta
- Department of Biochemistry, and Post-graduate Program of Food Science, State University of Maringa, Parana 87020-900, Brazil.
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117
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Nadeem M, Mumtaz MW, Danish M, Rashid U, Mukhtar H, Irfan A, Anwar F, Saari N. UHPLC-QTOF-MS/MS metabolites profiling and antioxidant/antidiabetic attributes of Cuscuta reflexa grown on Casearia tomentosa: exploring phytochemicals role via molecular docking. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2020. [DOI: 10.1080/10942912.2020.1764578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Muhammad Nadeem
- Department of Chemistry, University of Gujrat, Gujrat, Pakistan
| | | | - Muhammad Danish
- Department of Chemistry, University of Gujrat, Gujrat, Pakistan
| | - Umer Rashid
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Hamid Mukhtar
- Institute of Industrial Biotechnology, GC University Lahore, Lahore, Pakistan
| | - Ahmad Irfan
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| | - Farooq Anwar
- Department of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Nazamid Saari
- Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Malaysia
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118
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Hamedi A, Pasdaran A, Pasdaran A. A trisaccharide phenylethanoid glycoside from Scrophularia flava Grau with potential anti-type 2 diabetic properties by inhibiting α-glucosidase enzyme and decreasing oxidative stress. Bioorg Chem 2020; 99:103776. [DOI: 10.1016/j.bioorg.2020.103776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 02/19/2020] [Accepted: 03/17/2020] [Indexed: 12/18/2022]
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119
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San HT, Boonsnongcheep P, Putalun W, Mekboonsonglarp W, Sritularak B, Likhitwitayawuid K. α-Glucosidase Inhibitory and Glucose Uptake Stimulatory Effects of Phenolic Compounds From Dendrobium christyanum. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20913453] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A methanolic extract from the dried root of Dendrobium christyanum Rchb.f. (Orchidaceae) exhibited α-glucosidase inhibitory activity and glucose uptake stimulatory effect. Chromatographic separation of the extract led to the isolation of 13 phenolic compounds (1-13). Their structures were determined by spectroscopic analysis. The isolates were then evaluated for in vitro α-glucosidase inhibitory and glucose uptake stimulatory activities. Methyl haematommate (1), methyl 2,4-dihydroxy-3,6-dimethylbenzoate (3), n-docosyl 4-hydroxy- trans-cinnamate (4), coniferyl aldehyde (6), 4,5-dihydroxy-2-methoxy-9,10-dihydrophenanthrene (7), gigantol (10), and diorcinolic acid (13) showed higher α-glucosidase inhibitory activity than the drug acarbose. Moreover, n-docosyl 4-hydroxyl- trans-cinnamate (4), vanillin (5), and coniferyl aldehyde (6) could enhance glucose uptake by L6 myotubes. Compounds 4 and 6 appear to be potential hypoglycemic agents since they possess both α-glucosidase inhibitory and glucose uptake stimulatory activities. This study is the first report on the chemical constituents and antidiabetic activity of D. christyanum.
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Affiliation(s)
- Htoo Tint San
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacognosy, University of Pharmacy, Yangon, Myanmar
| | | | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Thailand
| | - Wanwimon Mekboonsonglarp
- Scientific and Technological Research Equipment Centre, Chulalongkorn University, Bangkok, Thailand
| | - Boonchoo Sritularak
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Natural Products for Ageing and Chronic Diseases Research Unit, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Kittisak Likhitwitayawuid
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
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120
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Katrucha EM, Lopes J, Paim M, dos Santos JC, Siebert DA, Micke GA, Vitali L, Alberton MD, Tenfen A. Phenolic profile by HPLC-ESI-MS/MS and enzymatic inhibitory effect of Bryophyllum delagoense. Nat Prod Res 2020; 35:4824-4827. [DOI: 10.1080/14786419.2020.1729147] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Edenize Maria Katrucha
- Curso de Graduação em Farmácia, Sociedade de Educacional Santa Catariana, UniSociesc, Jaraguá do Sul, SC, Brazil
| | - Jéssica Lopes
- Curso de Graduação em Farmácia, Sociedade de Educacional Santa Catariana, UniSociesc, Jaraguá do Sul, SC, Brazil
| | - Milena Paim
- Curso de Graduação em Farmácia, Fundação Universidade Regional de Blumenau, FURB, Blumenau, SC, Brazil
| | - Júlia Candiani dos Santos
- Curso de Graduação em Farmácia, Sociedade de Educacional Santa Catariana, UniSociesc, Jaraguá do Sul, SC, Brazil
| | - Diogo Alexandre Siebert
- Curso de Pós-Graduação em Química, Universidade Federal de Santa Catarina – UFSC, Florianópolis, SC, Brazil
| | - Gustavo Amadeu Micke
- Curso de Pós-Graduação em Química, Universidade Federal de Santa Catarina – UFSC, Florianópolis, SC, Brazil
| | - Luciano Vitali
- Curso de Pós-Graduação em Química, Universidade Federal de Santa Catarina – UFSC, Florianópolis, SC, Brazil
| | - Michele Debiasi Alberton
- Curso de Graduação em Farmácia, Fundação Universidade Regional de Blumenau, FURB, Blumenau, SC, Brazil
| | - Adrielli Tenfen
- Curso de Graduação em Farmácia, Sociedade de Educacional Santa Catariana, UniSociesc, Jaraguá do Sul, SC, Brazil
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121
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Antioxidative properties of eastern prickly pear (Opuntia humifusa) fermented with lactic acid bacteria and cell wall-hydrolyzing enzymes. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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122
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Silva AR, Pinela J, Dias MI, Calhelha RC, Alves MJ, Mocan A, García PA, Barros L, Ferreira IC. Exploring the phytochemical profile of Cytinus hypocistis (L.) L. as a source of health-promoting biomolecules behind its in vitro bioactive and enzyme inhibitory properties. Food Chem Toxicol 2020; 136:111071. [DOI: 10.1016/j.fct.2019.111071] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 12/11/2022]
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123
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Kinetics Analysis of the Inhibitory Effects of Alpha-Glucosidase and Identification of Compounds from Ganoderma lipsiense Mycelium. Appl Biochem Biotechnol 2020; 191:996-1009. [PMID: 31950449 DOI: 10.1007/s12010-020-03239-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 01/08/2020] [Indexed: 10/25/2022]
Abstract
The studies on natural compounds to diabetes mellitus treatment have been increasing in recent years. Research suggests that natural components can inhibit alpha-glucosidase activities, an important strategy in the management of blood glucose levels. In this work, for the first time in the literature, the compounds produced by Ganoderma lipsiense extracts were identified and evaluated on the inhibitory effect of these on alpha-glucosidase activity. Four phenolic compounds were identified by high-performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) to crude extract from G. lipsiense grown in red rice medium (RCE) and synthetic medium (SCE), being syringic acid identified in both extracts. Gas chromatography-mass spectrometry (GC-MS) analysis showed fatty acids and their derivatives, terpene, steroid, niacin, and nitrogen compounds to SCE, while RCE was rich in fatty acids and their derivatives. Both extracts demonstrated alpha-glucosidase inhibition (RCE IC50 = 0.269 ± 8.25 mg mL-1; SCE IC50 = 0.218 ± 9.67 mg mL-1), and the purified hexane fraction of RCE (RHEX) demonstrated the highest inhibition of enzyme (81.1%). Studies on kinetic inhibition showed competitive inhibition mode to RCE, while SCE showed uncompetitive inhibition mode. Although the inhibitory effects of RCE and SCE were satisfactory, the present findings identified some unpublished compounds to G. lipsiense in the literature with important therapeutic properties.
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124
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Franco EPDD, Contesini FJ, Lima da Silva B, Alves de Piloto Fernandes AM, Wielewski Leme C, Gonçalves Cirino JP, Bueno Campos PR, de Oliveira Carvalho P. Enzyme-assisted modification of flavonoids from Matricaria chamomilla: antioxidant activity and inhibitory effect on digestive enzymes. J Enzyme Inhib Med Chem 2020; 35:42-49. [PMID: 31656110 PMCID: PMC6830229 DOI: 10.1080/14756366.2019.1681989] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Matricaria chamomilla L. contains antioxidant flavonoids that can have their bioactivity enhanced by enzymatic hydrolysis of specific glycosyl groups. This study implements an untargeted metabolomics approach based on ultra-performance liquid chromatography coupled with electrospray ionisation quadrupole time-of-flight mass spectrometry technique operating in MSE mode (UPLC-QTOF-MSE) and spectrophotometric analysis of chamomile aqueous infusions, before and after hydrolysis by hesperidinase and β-galactosidase. Several phenolic compounds were altered in the enzymatically treated infusion, with the majority being flavonoid derivatives of apigenin, esculetin, and quercetin. Although enzymatically modifying the infusion only led to a small increase in antioxidant activity (DPPH• method), its inhibitory effect on pancreatic lipase was of particular interest. The enzymatically treated infusion exhibited a greater inhibitory effect (EC50 of 35.6 µM) than unmodified infusion and kinetic analysis suggested mixed inhibition of pancreatic lipase. These results are of great relevance due to the potential of enzymatically treated functional foods in human health.
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Affiliation(s)
| | - Fabiano Jares Contesini
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP) , Campinas , Brazil
| | - Bianca Lima da Silva
- Laboratory of Multidisciplinary Research, São Francisco University (USF) , Bragança Paulista , Brazil
| | | | - Camila Wielewski Leme
- Department of Biochemistry, Institute of Biology, State University of Campinas (UNICAMP) , Campinas , Brazil
| | | | - Paula Renata Bueno Campos
- Laboratory of Multidisciplinary Research, São Francisco University (USF) , Bragança Paulista , Brazil
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125
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Study on the interaction of triaryl-dihydro-1,2,4-oxadiazoles with α-glucosidase. ACTA ACUST UNITED AC 2020; 28:109-117. [PMID: 31907787 DOI: 10.1007/s40199-019-00322-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 12/17/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE One of the therapeutic approaches in the management of Type 2 diabetes is delaying the absorption of glucose through α-glucosidase enzymes inhibition, which can reduce the incidence of postprandial hyperglycemia. The existence of chronic postprandial hyperglycemia impaired the endogenous antioxidant defense due to inducing oxidative stress induced pancreatic β-cell destruction through uncontrolled free radicals generation such as ROS, which in turn, leads to various macrovascular and microvascular complications. This study aimed to synthesize 2-aryl-4,6-diarylpyrimidine derivatives, screen their α-glucosidase inhibitory activity, perform kinetic and molecular docking studies. METHODS A series of 3,4,5-triphenyl-4,5-dihydro-1,2,4-oxadiazole derivatives were synthesized and their α-glucosidase inhibitory activity was screened in vitro. Compounds 6a-k were synthesized via a two-step reaction with a yield between 65 and 88%. The structural elucidation of the synthesized derivatives was performed by different spectroscopic techniques. α-Glucosidase inhibitory activity of the oxadiazole derivatives 6a-k was evaluated against Saccharomyces cerevisiae α-glucosidase. RESULTS Most of the synthesized compounds demonstrated α-glucosidase inhibitory action. Particularly compounds 6c, 6d and 6 k were the most active compounds with IC50 values 215 ± 3, 256 ± 3, and 295 ± 4 μM respectively. A kinetic study performed for compound 6c revealed that the compound is a competitive inhibitor of Saccharomyces cerevisiae α-glucosidase with Ki of 122 μM. The docking study also revealed that the two compounds, 6c and 6 k, have important binding interactions with the enzyme active site. CONCLUSION The overall results of our study reveal that the synthesized compounds could be a potential candidate in the search for novel α-glucosidase inhibitors to manage the postprandial hyperglycemia incidence. Graphical abstract.
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126
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Miller N, Malherbe CJ, Joubert E. In vitro α-glucosidase inhibition by honeybush (Cyclopia genistoides) food ingredient extract—potential for dose reduction of acarbose through synergism. Food Funct 2020; 11:6476-6486. [DOI: 10.1039/d0fo01306d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Synergistic in vitro inhibition of intestinal α-glucosidase by acarbose and xanthones indicates potential for reducing the effective dose of acarbose.
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Affiliation(s)
- Neil Miller
- Plant Bioactives Group
- Post-Harvest and Agro-processing Technologies
- Agricultural Research Council (ARC) Infruitec-Nietvoorbij
- Stellenbosch 7599
- South Africa
| | - Christiaan J. Malherbe
- Plant Bioactives Group
- Post-Harvest and Agro-processing Technologies
- Agricultural Research Council (ARC) Infruitec-Nietvoorbij
- Stellenbosch 7599
- South Africa
| | - Elizabeth Joubert
- Plant Bioactives Group
- Post-Harvest and Agro-processing Technologies
- Agricultural Research Council (ARC) Infruitec-Nietvoorbij
- Stellenbosch 7599
- South Africa
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127
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Inhibition of α-amylase, α-glucosidase and pancreatic lipase by phenolic compounds of Rumex maderensis (Madeira sorrel). Influence of simulated gastrointestinal digestion on hyperglycaemia-related damage linked with aldose reductase activity and protein glycation. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108727] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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128
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Dej-adisai S, Phoopha S, Wattanapiromsakul C, Pitakbut T. Chemical constituents of Litsea elliptica and their alpha-glucosidase inhibition with molecular docking. Pharmacogn Mag 2020. [DOI: 10.4103/pm.pm_18_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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129
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Vu VT, Nguyen MT, Wang WL, Nguyen BN, Pham GN, Kong LY, Luo JG. Patulignans A–C, three structurally unique lignans from the leaves of Melicope patulinervia. Org Biomol Chem 2020; 18:6607-6611. [DOI: 10.1039/d0ob01412e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(±)-Patulignans A–C (1–3), α-glucosidase inhibitors bearing unprecedented lignan skeletons with twelve carbons at side chains were isolated from the leaves of Melicope patulinervia.
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Affiliation(s)
- Van-Tuan Vu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
| | - Manh-Tuyen Nguyen
- Department of Traditional Medicine
- Hanoi University of Pharmacy
- Hanoi
- Vietnam
| | - Wen-Li Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
| | - Bich-Ngoc Nguyen
- Department of Traditional Medicine
- Hanoi University of Pharmacy
- Hanoi
- Vietnam
| | - Giang-Nam Pham
- College of Pharmacy
- Chungnam National University
- Daejeon
- Republic of Korea
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
| | - Jian-Guang Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
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130
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Santosh Kumar B, Madhu G, Ravindranath L. Synthesis, antimicrobial evaluation and in silico studies of novel 3,4-disubstituted pyrrolidinesulfonamides. CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY 2019. [DOI: 10.15328/cb1044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
3,4-Disubstituted pyrrolidinesulfonamides were synthesized and screened for their antimicrobial activity. Title compounds were established as potent antibacterial and antifungal agents. Noteworthy antimicrobial activity was found for the title compounds against the tested microorganisms. They exhibit comparable results with standard drugs. Besides the in vitro antimicrobial activity, the synthesized compounds were evaluated for their in silico inhibitory activity on active site of β-glucosidase enzyme. In silico studies were done by GOLD docking method against β-glucosidase 3VKK (PDB Id). In silico studies were conducted to evaluate the ability of synthesized compounds to inhibit the β-glucosidase enzyme. The results revealed that 3,4-disubstitutedpyrrolidinesulfonamides are the potent β-glucosidase inhibitors by binding at the active site. A sensible inhibition against β-glucosidases was observed for the compound with 13,4-oxadizole ring has higher β-glucosidase inhibition activity than the other compounds. The free energy of binding and inhibition constant (Ki) of the docked compounds were evaluated and presented.
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131
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Assefa ST, Yang EY, Chae SY, Song M, Lee J, Cho MC, Jang S. Alpha Glucosidase Inhibitory Activities of Plants with Focus on Common Vegetables. PLANTS 2019; 9:plants9010002. [PMID: 31861279 PMCID: PMC7020213 DOI: 10.3390/plants9010002] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/12/2019] [Accepted: 12/16/2019] [Indexed: 01/07/2023]
Abstract
Type-2 diabetes mellitus is one of the most prevalent metabolic diseases in the world, and is characterized by hyperglycemia (i.e., high levels of glucose in the blood). Alpha-glucosidases are enzymes in the digestive tract that hydrolyze carbohydrates into glucose. One strategy that has been developed to treat type-2 diabetes is inhibition of the activity of alpha-glucosidases using synthetic drugs. However, these inhibitors are usually associated with gastrointestinal side effects. Therefore, the development of inhibitors from natural products offers an alternative option for the control of hyperglycemia. In recent years, various studies have been conducted to identify alpha-glucosidases inhibitors from natural sources such as plants, and many candidates have transpired to be secondary metabolites including alkaloids, flavonoids, phenols, and terpenoids. In this review, we focus on the alpha-glucosidases inhibitors found in common vegetable crops and the major classes of phytochemicals responsible for the inhibitory activity, and also as potential/natural drug candidates for the treatment of type-2 diabetes mellitus. In addition, possible breeding strategies for production of improved vegetable crops with higher content of the inhibitors are also described.
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Affiliation(s)
- Samuel Tilahun Assefa
- National Institute of Horticultural and Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju-gun, Jellabuk-do 55365, Korea; (S.T.A.); (E.-Y.Y.); (S.-Y.C.); (M.-C.C.)
- Department of Horticulture, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju-si, Jeollabuk-do 54896, Korea;
| | - Eun-Young Yang
- National Institute of Horticultural and Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju-gun, Jellabuk-do 55365, Korea; (S.T.A.); (E.-Y.Y.); (S.-Y.C.); (M.-C.C.)
| | - Soo-Young Chae
- National Institute of Horticultural and Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju-gun, Jellabuk-do 55365, Korea; (S.T.A.); (E.-Y.Y.); (S.-Y.C.); (M.-C.C.)
| | - Mihye Song
- World Vegetable Center Korea Office (WKO), Wanju-gun, Jellabuk-do 55365, Korea;
| | - Jundae Lee
- Department of Horticulture, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju-si, Jeollabuk-do 54896, Korea;
| | - Myeong-Cheoul Cho
- National Institute of Horticultural and Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju-gun, Jellabuk-do 55365, Korea; (S.T.A.); (E.-Y.Y.); (S.-Y.C.); (M.-C.C.)
| | - Seonghoe Jang
- World Vegetable Center Korea Office (WKO), Wanju-gun, Jellabuk-do 55365, Korea;
- Correspondence: ; Tel.: +82-63-238-6677
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132
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Ren L. Protective effect of ganoderic acid against the streptozotocin induced diabetes, inflammation, hyperlipidemia and microbiota imbalance in diabetic rats. Saudi J Biol Sci 2019; 26:1961-1972. [PMID: 31889779 PMCID: PMC6923438 DOI: 10.1016/j.sjbs.2019.07.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/15/2019] [Accepted: 07/05/2019] [Indexed: 01/03/2023] Open
Abstract
Diabetes mellitus (DM) is a metabolic disorder with numerous symptoms categorized via serves hyperglycemia effect along with altered fat, protein and carbohydrate metabolism mainly resultant from defects in insulin action/secretion or both. The aim of the current experimental study was to comfort the neuroprotective effect of ganoderic acid against the streptozotocin (STZ)-induced type I diabetes mellitus in mice and explore the underlying mechanism. Differentiation of 3T3-L1 preadipocytes effect; hepatic and glucose consumption effect of ganoderic acid was estimated on HepG2 cell lines and peroxisome proliferator-activated receptor (PPAR). FFA content was estimated in adipose and hepatic tissues. Ganoderic acid induced the 3T3-L1 preadipocytes differentiation. The mRNA expression of PPAR was increased in the high glucose-treated group in HepG2 and ganoderic acid treatment down-regulated the mRNA expression of PPAR. Ganoderic acid exhibited the inhibitory effect of α-glucosidase and α-amylase. Ganoderic acid demonstrated the reduced blood glucose and increase insulin level and also reduced the free fatty in hepatic and adipose tissue. Histopathological study showed the enhancement of β-cells in ganoderic acid-treated mice. Finally, their prebiotic effects on gut microbiota were illustrated via enhancing the population of diabetes resistant bacteria and also reducing the quantity of diabetes sensitive bacteria. Ganoderic acid attenuated STZ induced T1DM in mice via inflammatory pathways.
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133
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Wojtunik-Kulesza KA, Kasprzak K, Oniszczuk T, Oniszczuk A. Natural Monoterpenes: Much More than Only a Scent. Chem Biodivers 2019; 16:e1900434. [PMID: 31587473 DOI: 10.1002/cbdv.201900434] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/03/2019] [Indexed: 12/12/2022]
Abstract
Terpenes are a widespread group of secondary metabolites that can be found in various family plants such as the Lamiaceae. In view of their numerous valuable biological activities, the industrial production of concrete terpenes and essential oils rich in the substances is intensively studied. Monoterpenes constitute a significant part of the whole group of the aforementioned secondary metabolites. This is due to their numerous biological activities and their ability to permeate the skin. Despite the fact that these substances have gain popularity, they are not comprehensively characterized. The presented review is based on studies of the biological activities of the most important monoterpenes and the essential oils rich in these compounds. The authors focused attention on antioxidant activity, inhibition towards acetyl- and butyrylcholinesterase, and α-amylase and α-glucosidase, antifungal, hepatoprotective, sedative properties, and their skin permeation enhancement.
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Affiliation(s)
- Karolina A Wojtunik-Kulesza
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Lublin, 4 A. Chodźki Street, 20-093, Lublin, Poland
| | - Kamila Kasprzak
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Lublin, 4 A. Chodźki Street, 20-093, Lublin, Poland
| | - Tomasz Oniszczuk
- Department of Food Process Engineering, Lublin University of Life Sciences, 44 Doświadczalna Street, 20-236, Lublin, Poland
| | - Anna Oniszczuk
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Lublin, 4 A. Chodźki Street, 20-093, Lublin, Poland
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134
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Helal IE, Elsbaey M, Zaghloul AM, Mansour ESS. A unique C-linked chalcone-dihydrochalcone dimer from Dracaena cinnabari resin. Nat Prod Res 2019; 35:2558-2563. [PMID: 31696735 DOI: 10.1080/14786419.2019.1687471] [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
A new C-linked chalcone-dihydrochalcone dimer, named dracidione, was isolated from the ethyl acetate extract of dragon's blood resin of Dracaena cinnabari Balf. f. Structure elucidation of the new compound was carried out by means of one- and two-dimensional NMR spectroscopy in addition to high resolution mass spectrometry. The unique structure incorporated a chalcone and a dihydrochalcone, which is reported for the first time from nature. Furthermore, dracidione showed moderate α-glucosidase inhibitory activity with IC50= 40.27 µg/ml.
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Affiliation(s)
- Iman E Helal
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Marwa Elsbaey
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Ahmed M Zaghloul
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - El-Sayed S Mansour
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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135
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Antioxidant, Xanthine Oxidase, α-Amylase and α-Glucosidase Inhibitory Activities of Bioactive Compounds from Rumex crispus L. Root. Molecules 2019; 24:molecules24213899. [PMID: 31671906 PMCID: PMC6864818 DOI: 10.3390/molecules24213899] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/19/2019] [Accepted: 10/22/2019] [Indexed: 02/07/2023] Open
Abstract
The root of Rumex crispus L. has been shown to possess anti-gout and anti-diabetic properties, but the compounds responsible for these pharmaceutical effects have not yet been reported. In this study, we aimed to isolate and purify active components from the root of R. crispus, and to evaluate their anti-radical, anti-gout and anti-diabetic capacities. From the ethyl acetate (EtOAc) extract, two compounds, chrysophanol (1) and physcion (2), were isolated by column chromatography with an elution of hexane and EtOAc at a 9:1 ratio. Their structures were identified by spectrometric techniques including gas chromatography-mass spectrometry (GC-MS), electrospray ionization-mass spectrometry (ESI-MS), X-ray diffraction analyses and nuclear magnetic resonance (NMR). The results of bioassays indicated that (1) showed stronger activities than (2). For antioxidant activity, (1) and (2) exhibited remarkable DPPH radical scavenging capacity (IC50 = 9.8 and 12.1 µg/mL), which was about two times stronger than BHT (IC50 = 19.4 µg/mL). The anti-gout property of (1) and (2) were comparable to the positive control allopurinol, these compounds exerted strong inhibition against the activity of xanthine oxidase (IC50 = 36.4 and 45.0 µg/mL, respectively). In the anti-diabetic assay, (1) and (2) displayed considerable inhibitory ability on α-glucosidase, their IC50 values (IC50 = 20.1 and 18.9 µg/mL, respectively) were higher than that of standard acarbose (IC50 = 143.4 µg/mL). Findings of this study highlight that (1) and (2) may be promising agents to treat gout and diabetes, which may greatly contribute to the medicinal properties of Rumex crispus root.
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136
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Antidiabetic Activity of Cactus Acid Fruit Extracts: Simulated Intestinal Conditions of the Inhibitory Effects on α-amylase and α-glucosidase. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9194066] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Acid cactus fruits “xoconostle” have been used since the pre-Columbian period as a treatment against diverse diseases. In this study, bioactive compounds (phenols and flavonoids) and the in vitro inhibition effect against α-amylase and α-glucosidase were evaluated. Four different extracts of cactus acid fruits were prepared from (1) endocarp, (2) mesocarp, (3) pericarp and (4) whole fruit (WFE). The results showed significant differences (p < 0.05) between extracts. Pericarp extracts had 2.23 ± 0.01 mg of gallic acid equivalents per gram GAE/g of phenol content and 0.84 ± 0.14 mg quercetin equivalents per gram QE/g flavonoid content, while WFE presented 1.52 ± 0.04 mg GAE/g and 0.84 ± 0.14 mg QE/g; however, the inhibition of α-amylase and α-glucosidase were higher with WFE. It was found by using 25 mg/mL of WFE an α-amylase inhibition of 63. ± 1.53% and with 30 mg/mL of WFE an α-glucosidase inhibition of 46.5 ± 1.45% after simulated intestinal conditions. The WFE could be used as a therapeutic strategy in controlled diets of diabetic patients due to its low cost, natural origin, and effect after simulated intestinal conditions.
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137
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Miller N, Bosman SC, Malherbe CJ, De Beer D, Joubert E. Membrane selection and optimisation of tangential flow ultrafiltration of Cyclopia genistoides extract for benzophenone and xanthone enrichment. Food Chem 2019; 292:121-128. [DOI: 10.1016/j.foodchem.2019.04.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 04/08/2019] [Accepted: 04/11/2019] [Indexed: 10/27/2022]
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138
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Qiu P, Liu Z, Chen Y, Cai R, Chen G, She Z. Secondary Metabolites with α-Glucosidase Inhibitory Activity from the Mangrove Fungus Mycosphaerella sp. SYSU-DZG01. Mar Drugs 2019; 17:md17080483. [PMID: 31434338 PMCID: PMC6723402 DOI: 10.3390/md17080483] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/13/2019] [Accepted: 08/18/2019] [Indexed: 12/23/2022] Open
Abstract
Four new metabolites, asperchalasine I (1), dibefurin B (2) and two epicoccine derivatives (3 and 4), together with seven known compounds (5-11) were isolated from a mangrove fungus Mycosphaerella sp. SYSU-DZG01. The structures of compounds 1-4 were established from extensive spectroscopic data and HRESIMS analysis. The absolute configuration of 1 was deduced by comparison of ECD data with that of a known structure. The stereostructures of 2-4 were further confirmed by single-crystal X-ray diffraction. Compounds 1, 8 and 9 exhibited significant α-glucosidase inhibitory activity with IC50 values of 17.1, 26.7 and 15.7 μM, respectively. Compounds 1, 4, 6 and 8 showed antioxidant activity by scavenging DPPH· with EC50 values ranging from 16.3 to 85.8 μM.
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Affiliation(s)
- Pei Qiu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhaoming Liu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Yan Chen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Runlin Cai
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Guangying Chen
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China.
| | - Zhigang She
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510006, China.
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139
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Calotropis procera: UHPLC-QTOF-MS/MS based profiling of bioactives, antioxidant and anti-diabetic potential of leaf extracts and an insight into molecular docking. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-019-00243-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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140
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Khan H, Zafar M, Patel S, Shah SMM, Bishayee A. Pharmacophore studies of 1, 3, 4-oxadiazole nucleus: Lead compounds as α-glucosidase inhibitors. Food Chem Toxicol 2019; 130:207-218. [DOI: 10.1016/j.fct.2019.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/30/2019] [Accepted: 05/04/2019] [Indexed: 01/22/2023]
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141
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Galarce-Bustos O, Pavón-Pérez J, Henríquez-Aedo K, Aranda M. An improved method for a fast screening of α-glucosidase inhibitors in cherimoya fruit (Annona cherimola Mill.) applying effect-directed analysis via high-performance thin-layer chromatography-bioassay-mass spectrometry. J Chromatogr A 2019; 1608:460415. [PMID: 31402104 DOI: 10.1016/j.chroma.2019.460415] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/27/2019] [Accepted: 07/30/2019] [Indexed: 12/16/2022]
Abstract
α-glucosidase inhibitors (AGIs) are very attractive bioactive compounds due to their therapeutic profile that includes beneficial effects over glycemic control in type 2 diabetes mellitus and viral infections. Its detection and identification in plants and fruits has gained growing attention, and certainly requires efficient screening methodologies. The objective of the present work was to develop a fast methodology to detect and identify AGIs in cherimoya fruit (Annona cherimola Mill.) applying effect-directed analysis via high-performance thin layer-chromatography (HPTLC) linked with bioassay and mass spectrometry (MS). Both, HPTLC and bioassay conditions, were optimized accomplishing 50% and 83% reduction on enzyme concentration and incubation time respectively, compared to the original method. Additionally, the contrast between inhibitory bands and purple background was also enhanced by enzyme substrate impregnation on HPTLC plate. The optimized detection conditions established were the following: 5.0 U mL-1 of enzyme solution, 1.0 mg mL-1 of 2-naphthyl-α-D-glucopyranoside substrate, 1.0 mg mL-1 of Fast Blue B salt solution and 10 min as incubation time. Applying this methodology, coupled to HPTLC-MS and ultra-high-performance liquid chromatography (UHPLC)-diode array detector (DAD)-MS/MS, it was possible for the first time to detect and identify three AGIs in cherimoya peel and seeds. Compounds were tentatively assigned as phenolamides (phenylethyl cinnamides): N-trans-feruloyl tyramine (m/z 314 [M+H]+; UV λmax 293 and 316 nm), N-trans-p-coumaroyl tyramine (m/z 284 [M+H]+; UV λmax 296 nm) and N-trans-feruloyl phenethylamine (m/z 298 [M+H]+; UV λmax 288 nm). To the best of our knowledge, the presence of latter compound is reported for the first time in cherimoya.
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Affiliation(s)
- Osca Galarce-Bustos
- Laboratory of Advanced Research on Foods and Drugs, Department of Food Science and Technology, Faculty of Pharmacy, University of Concepción, Chile
| | - Jessy Pavón-Pérez
- Laboratory of Advanced Research on Foods and Drugs, Department of Food Science and Technology, Faculty of Pharmacy, University of Concepción, Chile
| | - Karem Henríquez-Aedo
- Laboratory of Biotechnology and Genetic of the Foods, Department of Food Science and Technology, Faculty of Pharmacy, University of Concepcion, Chile; Center for Biotechnology, University of Concepcion, Chile
| | - Mario Aranda
- Laboratory of Advanced Research on Foods and Drugs, Department of Food Science and Technology, Faculty of Pharmacy, University of Concepción, Chile; Center for Biotechnology, University of Concepcion, Chile.
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142
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Palmeri R, Parafati L, Trippa D, Siracusa L, Arena E, Restuccia C, Fallico B. Addition of Olive Leaf Extract (OLE) for Producing Fortified Fresh Pasteurized Milk with An Extended Shelf Life. Antioxidants (Basel) 2019; 8:antiox8080255. [PMID: 31366135 PMCID: PMC6720734 DOI: 10.3390/antiox8080255] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 07/22/2019] [Accepted: 07/22/2019] [Indexed: 12/11/2022] Open
Abstract
An olive leaf extract (OLE) has been tested in vitro for its antibacterial activity and ability to inhibit α-glucosidase enzyme. OLE was also evaluated for its potential, when added to pasteurized milk, to preserve nutritional parameters and to limit microbial growth, thus prolonging shelf life. In vitro assays demonstrated a strong antibacterial efficacy of OLE mainly against Bacillus cereus and the capacity to inhibit α-glucosidase enzyme (IC50) when used at 0.2 mg oleuropein/mL. The milk fortification with OLE at 3.6 mg of oleuropein/mL of milk reduced total mesophilic bacteria at undetectable level after 6 d (expiration date) and by 1 log CFU/mL after 10 d. Moreover, OLE addition at 1.44 and 3.6 mg of oleuropein/mL of milk significantly reduced fat and lactose losses up to 10 d. The results motivate the use of the OLE to make a new functional milk with an extended shelf life.
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Affiliation(s)
- Rosa Palmeri
- Di3A, Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, via S. Sofia 100, 95123 Catania, Italy
| | - Lucia Parafati
- Di3A, Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, via S. Sofia 100, 95123 Catania, Italy
| | - Daniela Trippa
- Di3A, Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, via S. Sofia 100, 95123 Catania, Italy
| | - Laura Siracusa
- CNR-ICB, Consiglio Nazionale delle Ricerche-Istituto di Chimica Biomolecolare, via Paolo Gaifami 18, 95126 Catania, Italy
| | - Elena Arena
- Di3A, Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, via S. Sofia 100, 95123 Catania, Italy
| | - Cristina Restuccia
- Di3A, Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, via S. Sofia 100, 95123 Catania, Italy.
| | - Biagio Fallico
- Di3A, Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, via S. Sofia 100, 95123 Catania, Italy
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143
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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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144
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William J, John P, Mumtaz MW, Ch AR, Adnan A, Mukhtar H, Sharif S, Raza SA, Akhtar MT. Antioxidant activity, α-glucosidase inhibition and phytochemical profiling of Hyophorbe lagenicaulis leaf extracts. PeerJ 2019; 7:e7022. [PMID: 31259094 PMCID: PMC6589327 DOI: 10.7717/peerj.7022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 04/25/2019] [Indexed: 12/19/2022] Open
Abstract
Background Diabetes mellitus type II (DMT-2) is a widely spread metabolic disorder both in developed and developing countries. The role of oxidative stress is well established in DMT-2 pathogenesis. The synthetic drugs for DMT-2 are associated with serious side complications. Antioxidant and α-glucosidase inhibitory actions of phytochemicals from various plant species are considered as an alternative to synthetic drugs for DMT-2 management. The present study aimed to evaluate the antioxidant activity, α-glucosidase inhibitory potential and phytochemical profiling of Hyophorbe lagenicaulis. Methods The total phenolic and flavonoid contents, in vitro antioxidant activity (α, α-diphenyl-β-picrylhydrazyl (DPPH) free radical scavenging and phosphomolybdenum method) and α-glucosidase inhibition of ultrasonicated hydroethanolic H. lagenicaulis leaf extracts were determined spectrophotometrically. The results of DPPH assay and α-glucosidase inhibition were reported in terms of IC50 value. The phytochemical profiling was accomplished by UHPLC-Q-TOF/MS/MS technique. Results and Discussion Findings leaped 60% ethanolic extract as rich fraction regarding total phenolic and flavonoid contents. The 60% ethanolic fraction was a promising source of natural antioxidants and α-glucosidase inhibitory agents as indicated by anti-radical and enzyme inibitory activities. Kaempferol, rutin, hesperetin 5-O-glucoside, kaempferol-coumaroyl-glucoside, luteolin 3-glucoside, Isorhamnetin-3-O-rutinoside, trimethoxyflavone derivatives and citric acid were identified by UHPLC-Q-TOF-MS/MS. These compounds were believed to be responsible for the strong antioxidant and enzyme inhibitory activity of plant extracts. The extensive metabolite profiling of H. lagenicaulis was carried out the first time as never reported previously. The H. lagenicaulis might be an appropriate choice to manage diabetes mellitus in an alternate way. The findings may be further exploited extensively for toxicity evaluation to proceed with functional food development having antidiabetic attributes.
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Affiliation(s)
- James William
- Department of Chemistry, Government College University Lahore, Lahore, Pakistan
| | - Peter John
- Department of Chemistry, Government College University Lahore, Lahore, Pakistan
| | | | - Ayoub Rashid Ch
- Department of Chemistry, Government College University Lahore, Lahore, Pakistan
| | - Ahmad Adnan
- Department of Chemistry, Government College University Lahore, Lahore, Pakistan
| | - Hamid Mukhtar
- Institute of Industrial Biotechnology, Government College University Lahore, Lahore, Pakistan
| | - Shahzad Sharif
- Department of Chemistry, Government College University Lahore, Lahore, Pakistan
| | - Syed Ali Raza
- Department of Chemistry, Government College University Lahore, Lahore, Pakistan
| | - Muhammad Tayyab Akhtar
- Institute of Industrial Biotechnology, Government College University Lahore, Lahore, Pakistan
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145
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A New Flavanone as a Potent Antioxidant Isolated from Chromolaena odorata L. Leaves. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:1453612. [PMID: 31316568 PMCID: PMC6604423 DOI: 10.1155/2019/1453612] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 05/20/2019] [Indexed: 11/17/2022]
Abstract
Chromolaena odorata L. (Asteraceae) is one of the tropical plants which is widely used as traditional medicines for diabetes and soft tissue wounds treatment in some regions in East Indonesia. The present study was aimed at determining the bioactive compounds of C. odorata leaves. The methanol and ethyl acetate extracts of C. odorata leaves have the inhibitory activity against 2,2-diphenyl-1-picryl-hydrazyl (DPPH) and 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals as well as α-glucosidase rat intestine enzyme. A new flavanone was isolated from the methanol extract and elucidated as 5,3'-dihydroxy-7,6'-dimethoxyflavanone or, namely, odoratenin (1) together with two known compounds: isosakuranetin (2) and subscandenin (3). The antioxidant activity of odoratenin (1) exhibited very potent ABTS radical inhibitory activity with IC50 value of 23.74 μM which is lower than that of trolox (IC50 31.32 μM) as a positive control. The result showed that a new flavanone, odoratenin (1), should be potential as an antioxidant source.
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146
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Khan H, Amin S, Tewari D, Nabavi SM, Atanasov AG. Plant-derived Glycosides with α-Glucosidase Inhibitory Activity: Current Standing and Future Prospects. Endocr Metab Immune Disord Drug Targets 2019; 19:391-401. [DOI: 10.2174/1871530319666181128104831] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 03/30/2018] [Accepted: 06/27/2018] [Indexed: 11/22/2022]
Abstract
Background:The α-glucosidase (EC 3.2.1.20), a calcium-containing intestinal enzyme which is positioned in the cells which cover the intestinal microvilli brush border. The carbohydrates require metabolism by α-glucosidase before being absorbed into the small intestine, and as a result, this enzyme represents a significant drug target for the effective management of diabetes. There are few α- glucosidase inhibitors in the clinical practice that is challenged by several limitations. Thus, new effective and safe therapeutic agents in this class are required. In this regard, plant secondary metabolites are a very promising source to be investigated. Herein in this review, we have focused on the preclinical studies on various glycosides with in vitro α-glucosidase inhibitory activity.Methods:The literature available on various websites such as GoogleScholar, PubMed, Scopus. All the peer-reviewed articles were included without considering the impact factor.Results:The surveyed literature revealed marked inhibitory profile of various glycosides derived from plants, and some of them were extremely potent relatively to the standard, acarbose in preclinical trials and exhibited multiple targeted effects.Conclusion:Keeping in view the results, these glycosides are strong candidates for further, more detailed studies to ascertain their clinical potential and for effective contribution in effective management of diabetes, where multiple targets are required to address
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Affiliation(s)
- Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, KPK, Pakistan
| | - Surrya Amin
- Department of Botany, Islamia College University Peshawar, Peshawar, Pakistan
| | - Devesh Tewari
- Department of Pharmaceutical Sciences, Faculty of Technology, Kumaun University Bhimtal Campus Nainital, Uttarakhand, India
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Atanas G. Atanasov
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, 05-552 Jastrzebiec, Poland
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147
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Kato E. Bioactive compounds in plant materials for the prevention of diabetesand obesity. Biosci Biotechnol Biochem 2019; 83:975-985. [DOI: 10.1080/09168451.2019.1580560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
ABSTRACT
Plant materials have been widely studied for their preventive and therapeutic effects for type 2 diabetes mellitus (T2DM) and obesity. The effect of a plant material arises from its constituents, and the study of these bioactive compounds is important to achieve a deeper understanding of its effect at the molecular level. In particular, the study of the effects of such bioactive compounds on various biological processes, from digestion to cellular responses, is required to fully understand the overall effects of plant materials in these health contexts. In this review, I summarize the bioactive compounds we have recently studied in our research group that target digestive enzymes, dipeptidyl peptidase-4, myocyte glucose uptake, and lipid accumulation in adipocytes.
Abbreviations: AC: adenylyl cyclase; AMPK: AMP-activated protein kinase; βAR: β-adrenergic receptor; CA: catecholamine; cAMP: cyclic adenosine monophosphate; cGMP: cyclic guanosine monophosphate; DPP-4: dipeptidyl peptidase-4; ERK: extracellular signal-regulated kinase; GC: guanylyl cyclase; GH: growth hormone; GLP-1: glucagon-like peptide-1; GLUT: glucose transporter; HSL: hormone-sensitive lipase; IR: insulin receptor; IRS: insulin receptor substrate; MAPK: mitogen-activated protein kinase; MEK: MAPK/ERK kinase; MG: maltase-glucoamylase; NP: natriuretic peptide; NPR: natriuretic peptide receptor; mTORC2: mechanistic target of rapamycin complex-2; PC: proanthocyanidin; PI3K: phosphoinositide 3-kinase; PKA: cAMP-dependent protein kinase; PKB (AKT): protein kinase B; PKG: cGMP-dependent protein kinase; PPARγ: peroxisome proliferator-activated receptor-γ; SGLT1: sodium-dependent glucose transporter 1; SI: sucrase-isomaltase; T2DM: type 2 diabetes mellitus; TNFα: tumor necrosis factor-α.
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Affiliation(s)
- Eisuke Kato
- Division of Fundamental AgriScience and Research, Research Faculty of Agriculture, Hokkaido University, Kita-ku, Sapporo, Hokkaido, Japan
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148
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de Camargo AC, Favero BT, Morzelle MC, Franchin M, Alvarez-Parrilla E, de la Rosa LA, Geraldi MV, Maróstica Júnior MR, Shahidi F, Schwember AR. Is Chickpea a Potential Substitute for Soybean? Phenolic Bioactives and Potential Health Benefits. Int J Mol Sci 2019; 20:E2644. [PMID: 31146372 PMCID: PMC6600242 DOI: 10.3390/ijms20112644] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/18/2019] [Accepted: 05/22/2019] [Indexed: 01/07/2023] Open
Abstract
Legume seeds are rich sources of protein, fiber, and minerals. In addition, their phenolic compounds as secondary metabolites render health benefits beyond basic nutrition. Lowering apolipoprotein B secretion from HepG2 cells and decreasing the level of low-density lipoprotein (LDL)-cholesterol oxidation are mechanisms related to the prevention of cardiovascular diseases (CVD). Likewise, low-level chronic inflammation and related disorders of the immune system are clinical predictors of cardiovascular pathology. Furthermore, DNA-damage signaling and repair are crucial pathways to the etiology of human cancers. Along CVD and cancer, the prevalence of obesity and diabetes is constantly increasing. Screening the ability of polyphenols in inactivating digestive enzymes is a good option in pre-clinical studies. In addition, in vivo studies support the role of polyphenols in the prevention and/or management of diabetes and obesity. Soybean, a well-recognized source of phenolic isoflavones, exerts health benefits by decreasing oxidative stress and inflammation related to the above-mentioned chronic ailments. Similar to soybeans, chickpeas are good sources of nutrients and phenolic compounds, especially isoflavones. This review summarizes the potential of chickpea as a substitute for soybean in terms of health beneficial outcomes. Therefore, this contribution may guide the industry in manufacturing functional foods and/or ingredients by using an undervalued feedstock.
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Affiliation(s)
- Adriano Costa de Camargo
- Departamento de Ciencias Vegetales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Casilla 306-22, Santiago, Chile.
| | - Bruno Trevenzoli Favero
- University of Copenhagen, Department of Plant and Environmental Sciences, 2630 Taastrup, Denmark.
| | - Maressa Caldeira Morzelle
- Department of Food and Nutrition, Faculty of Nutrition, Federal University of Mato Grosso, Fernando Correa Avenue, P.O. box 2367, Cuiabá, MT 78060-900, Brazil.
| | - Marcelo Franchin
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, SP 13414-903, Brazil.
| | - Emilio Alvarez-Parrilla
- Department of Chemical Biological Sciences, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del Pronaf y Estocolmo, s/n, Cd, Juárez, Chihuahua 32310, México.
| | - Laura A de la Rosa
- Department of Chemical Biological Sciences, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del Pronaf y Estocolmo, s/n, Cd, Juárez, Chihuahua 32310, México.
| | - Marina Vilar Geraldi
- Department of Food and Nutrition, University of Campinas-UNICAMP, Campinas, SP 13083-862, Brazil.
| | | | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, NL A1B 3X9, Canada.
| | - Andrés R Schwember
- Departamento de Ciencias Vegetales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Casilla 306-22, Santiago, Chile.
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149
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Elbermawi A, Halim AF, Mansour ESS, Ahmad KF, Ashour A, Amen Y, Shimizu K. A new glucoside with a potent α-glucosidase inhibitory activity from Lycium schweinfurthii. Nat Prod Res 2019; 35:976-983. [PMID: 31140302 DOI: 10.1080/14786419.2019.1616730] [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: 01/04/2023]
Abstract
A new glucoside, 3-methoxy-4-O-β-D-glucopyranosyl-methyl benzoate, has been isolated from Lycium schweinfurthii along with five known compounds through bioactivity guided fractionation of the total plant methanolic extract towards α-glucosidase inhibitory activity. All the isolated compounds were tested for their inhibitory effect on α-glucosidase enzyme. As a result, four of them showed a potent inhibitory activity and thus constitute a therapeutic approach to decrease postprandial hyperglycemia in diabetic patients.
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Affiliation(s)
- Ahmed Elbermawi
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Ahmed F Halim
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - El-Sayed S Mansour
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Kadria F Ahmad
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Ahmed Ashour
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Yhiya Amen
- Department of Pharmacognosy Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Kuniyoshi Shimizu
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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150
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Loo KY, Leong KH, Sivasothy Y, Ibrahim H, Awang K. Molecular Insight and Mode of Inhibition of α-Glucosidase and α-Amylase by Pahangensin A from Alpinia pahangensis Ridl. Chem Biodivers 2019; 16:e1900032. [PMID: 30957403 DOI: 10.1002/cbdv.201900032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/08/2019] [Indexed: 11/12/2022]
Abstract
The inhibition of carbohydrate-hydrolyzing enzymes in human digestive organs is crucial in controlling blood sugar levels, which is important in treating type 2 diabetes. In the current study, pahangensin A (1), a bis-labdanic diterpene characterized previously in the rhizomes of Alpinia pahangensis Ridl., was identified as an active dual inhibitor for α-amylase (IC50 =114.80 μm) and α-glucosidase (IC50 =153.87 μm). This is the first report on the dual α-amylase and α-glucosidase inhibitory activities of a bis-labdanic diterpene. The Lineweaver-Burk plots of compound 1 indicate that it is a mixed-type inhibitor with regard to both enzymes. Based on molecular docking studies, compound 1 docked in a non-active site of both enzymes. The dual inhibitory activity of compound 1 makes it a suitable natural alternative in the treatment of type 2 diabetes.
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Affiliation(s)
- Kong Yong Loo
- Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kok Hoong Leong
- Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.,Center for Natural Product and Drug Discovery (CENAR), Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Yasodha Sivasothy
- Research Center for Crystalline Materials, Faculty of Science and Technology, Sunway University, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Halijah Ibrahim
- Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Khalijah Awang
- Center for Natural Product and Drug Discovery (CENAR), Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.,Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
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