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Arabnozari H, Shaki F, Najjari A, Sharifianjazi F, Sarker SD, Habibi E, Nahar L. The effect of Polygonum hyrcanicum Rech. f. hydroalcoholic extract on oxidative stress and nephropathy in alloxan-induced diabetic mice. Sci Rep 2024; 14:18117. [PMID: 39103444 PMCID: PMC11300806 DOI: 10.1038/s41598-024-69220-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 08/01/2024] [Indexed: 08/07/2024] Open
Abstract
Diabetic nephropathy, characterized by inflammation and oxidative stress, poses a management challenge. This study investigates the effect of Polygonum hyrcanicum extract on diabetic nephropathy in alloxan-induced diabetic mice. In this experimental animal study, the P. hyrcanicum extract was prepared using continuous macerations. Thirty male Albino mice, divided into five groups, were induced with alloxan-induced diabetes. They received intraperitoneal injections of the plant extract (100 and 200 mg/kg) and metformin (300 mg/kg) for four weeks. Kidney and blood samples were collected to assess protein carbonyl, glutathione, lipid peroxidation, TNF-α and IL-6 levels. The amount of total flavonoid and phenolic content in the hydroalcoholic extract of P. hyrcanicum were 7.5 ± 0.3 mg of quercetin and 88.2 ± 1.3 mg gallic acid per gram of extract respectively. The antioxidant activity level of the hydroalcoholic extract was determined to be 1.78 ± 0.51 mM equivalent per gram of extract. Alloxan administration resulted in a significant reduction in glutathione levels and a significant increase in protein carbonyl, lipid peroxidation, TNF-α, and IL-6 levels. Hydroalcoholic extract of P. hyrcanicum effectively reduced oxidative stress markers and inflammatory cytokines (TNF-α, IL-6), indicating its potential in mitigating diabetic nephropathy. However, no significant difference in efficacy was observed between the 100 mg/kg and 200 mg/kg doses in terms of reducing these toxicities.
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Affiliation(s)
- Hesamoddin Arabnozari
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Fatemeh Shaki
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abolfazl Najjari
- Student Research Committee, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fariborz Sharifianjazi
- Center for Advanced Materials and Structures, School of Science and Technology, The University of Georgia, Tbilisi, 0171, Georgia
| | - Satyajit D Sarker
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Emran Habibi
- Medicinal Plants Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Lutfun Nahar
- Laboratory of Growth Regulators, Palacký University and Institute of Experimental Botany, The Czech Academy of Sciences, Šlechtitelů 27, 78371, Olomouc, Czech Republic.
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Maache S, Laaroussi H, Soulo N, Nouioura G, Boucetta N, Bouslamti M, Saghrouchni H, A Bin Jardan Y, Ibenmoussa S, Bourhia M, Lyoussi B, Elarabi I. The antioxidant, antidiabetic, and antihyperlipidemic effects of the polyphenolic extract from Salvia blancoana subsp. mesatlantica on induced diabetes in rats. BIORESOUR BIOPROCESS 2024; 11:62. [PMID: 38926327 PMCID: PMC11208370 DOI: 10.1186/s40643-024-00769-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 05/06/2024] [Indexed: 06/28/2024] Open
Abstract
Currently, several studies have demonstrated the benefits of medicinal plants in managing type 2 diabetes. In this work, we evaluated the beneficial effects of the polyphenolic extract (PESB) from Salvia blancoana subsp. mesatlantica in the management of hypercaloric-feeding and small-dose alloxan-brought type 2 diabetes in rats. We analyzed the chemical constituents of the extract, including flavones and flavonols content, to understand its biological action. The antioxidant activities were evaluated by total antioxidant action, scavenging effect of the free radical DPPH, and reducing power. The obtained results showed that the value of TFC was estimated at 31.90 ± 0.34 mgEQ/g in the PESB extract. The total antioxidant capacity was estimated at 593.51 ± 4.09 mg (EAA)/g, the value of DPPH IC50 was 7.3 ± 0.00 μg/mL, and the value of EC50 of reducing power was estimated at 6.43 ± 0.01 μg/mL. In total, 14 phenolic compounds were identified and the naringin was the most dominant (63.19%) while the vanillin was the less recorded (0.10%). Serum glucose decreased significantly (p < 0.05) in rats given PESB (100 mg/kg) after four weeks. Glibenclamide (GLB) and PESB reduced HbA1c and increased plasma insulin in diabetic rats, restoring HOMA-β and HOMA-IR levels to near-normal. Additionally, diabetic rats treated with GLB or PESB showed statistically equivalent results to those of non-diabetic rats regarding hepatic enzymes, renal and lipid markers, as well as cardiovascular indices. The weight loss was significantly lower in diabetic rats receiving a dose of PESB (100 mg/kg), and GLB compared to corresponding untreated diabetic rats (p < 0.01). PESB and GLB showed a prominent protective function in the pancreas, liver, and kidney tissues. This investigation demonstrates the capacity of extracts from leaves of S. blancoana subsp. mesatlantica to manage diabetes mellitus due to their richness in a wide range of bioactive compounds. Therefore, more investigations are required to estimate the safety of the plant use.
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Affiliation(s)
- Souad Maache
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Hassan Laaroussi
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Najoua Soulo
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Ghizlane Nouioura
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | | | - Mohammed Bouslamti
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Hamza Saghrouchni
- Department of Biotechnology, Institute of Natural and Applied Sciences, Çukurova University, 01250, Balcalı, Adana, Türkiye.
| | - Yousef A Bin Jardan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 11451, Riyadh, Saudi Arabia
| | - Samir Ibenmoussa
- Laboratory of Therapeutic and Organic Chemistry, Faculty of Pharmacy, University of Montpellier, 34000, Montpellier, France
| | - Mohammed Bourhia
- Laboratory of Biotechnology and Natural Resources Valorization , Faculty of Sciences, Ibn Zohr University, 80060, Agadir, Morocco
- Laboratory of Chemistry-Biochemistry, Environment, Nutrition, and Health, Faculty of Medicine and Pharmacy, University Hassan II, B. P. 5696, Casablanca, Morocco
| | - Badiaa Lyoussi
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Ilham Elarabi
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
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Idoudi S, Tourrette A, Bouajila J, Romdhane M, Elfalleh W. The genus Polygonum: An updated comprehensive review of its ethnomedicinal, phytochemical, pharmacological activities, toxicology, and phytopharmaceutical formulation. Heliyon 2024; 10:e28947. [PMID: 38638945 PMCID: PMC11024578 DOI: 10.1016/j.heliyon.2024.e28947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/20/2024] Open
Abstract
Polygonum is a plant genus that includes annual and perennial species and is found at various temperatures, from northern temperate regions to tropical and subtropical areas. The genus Polygonum has been used for centuries for various disorders, including hypertension, intestinal and stomach pain, dysuria, jaundice, toothaches, skin allergies, hemorrhoids, cardiac disorders, kidney stones, hemostasis, hyperglycemia, and others. Various databases, including Google Scholar, Scifinder, ScienceDirect, PubMed, Scopus, ResearchGate, and Web of Science, were utilized to collect pertinent scientific literature data. According to bibliographic studies, the Polygonum genus possesses various compounds from different families, including phenolic acids (gallic acid, caffeic acid, quinic acid, p-coumaric acid, ferulic acid, protocatechuic acid, chlorogenic acid, and many other compounds), flavonoids (quercetin, catechin, epicatechin, quercitrin, kaempferol, myricetin, etc.), tannins, stilbenes (polydatin and resveratrol), terpenes (α-pinene, β-caryophyllene and β-caryophyllene oxide, bisabolene, β-farnesene, etc.), fatty acids (decanoic acid, lauric acid, linoleic acid, oleic acid, palmitic acid, stearic acid, dodecanoic acid), polysaccharides, and others. Various chemical and biological activities (in vitro and in vivo), such as antioxidant, antimicrobial, anticancer, antitumor, anti-inflammatory, antidiabetic, antiparasitic, hepatoprotective, neuropharmacological, gastroprotective, diuretic, antipyretic, and others, have been described in several biological studies involving this species. An updated summary of Polygonum species and their ethnomedicinal, phytochemical, toxicological, pharmacological, and phytopharmaceutical formulations is necessary. Considering the numerous potentialities of the Polygonum species and their wide-ranging use, it is extremely essential to provide knowledge by compiling the accessible literature to identify the topics of intense investigation and the main gaps to better design future studies. The objective of this review is to give readers a better understanding, greater comprehension, and in-depth knowledge of the genus Polygonum's traditional applications, phytochemistry, pharmacology, toxicological features, and galenic formulation. Several species of this genus have been detailed in this review, including those that were frequently used in traditional medicine (P. minus, P. aviculare, P. hydropiper, P. cuspidatum, and P. multiflorum) and many of the genus' therapeutic species, like P. equisetiforme, which do not get enough attention.
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Affiliation(s)
- Sourour Idoudi
- Energy, Water, Environment and Process Laboratory, (LR18ES35), National Engineering School of Gabes, University of Gabes, Gabes, 6072, Tunisia
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 35 Chemin des Maraichers, 31062, Toulouse, Cedex 9, France
| | - Audrey Tourrette
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 35 Chemin des Maraichers, 31062, Toulouse, Cedex 9, France
| | - Jalloul Bouajila
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INP, UPS, F-31062, Toulouse, France
| | - Mehrez Romdhane
- Energy, Water, Environment and Process Laboratory, (LR18ES35), National Engineering School of Gabes, University of Gabes, Gabes, 6072, Tunisia
| | - Walid Elfalleh
- Energy, Water, Environment and Process Laboratory, (LR18ES35), National Engineering School of Gabes, University of Gabes, Gabes, 6072, Tunisia
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Wadaan MA, Baabbad A, Khan MF, Saravanan M, Anderson A. Phytochemical profiling, anti-hyperglycemic, antifungal, and radicals scavenging potential of crude extracts of Athyrium asplenioides- an in-vitro approach. ENVIRONMENTAL RESEARCH 2023; 231:116129. [PMID: 37187305 DOI: 10.1016/j.envres.2023.116129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 05/17/2023]
Abstract
This research was aimed to evaluate the phytochemical profile, antifungal, anti-hyperglycemic, as well as antioxidant activity competence of different extracts of Athyrium asplenioides through in-vitro approach. The A. asplenioides crude methanol extract contained considerable quantity of pharmaceutically precious phytochemicals (saponins, tannins, quinones, flavonoid, phenols, steroid, and terpenoids) than others (acetone, ethyl acetate, and chloroform). Interestingly, the crude methanol extract showed remarkable antifungal activity against Candida species (C. krusei: 19.3 ± 2 mm > C. tropicalis: 18.4 ± 1 mm > C. albicans: 16.5 ± 1 mm > C. parapsilosis: 15.5 ± 2 mm > C. glabrate: 13.5 ± 2 mm > C. auris: 7.6 ± 1 mm) at a concentration of 20 mg mL-1. The crude methanol extract also showed remarkable anti-hyperglycemic activity on concentration basis. Surprisingly, remarkable free radicals scavenging potential against DPPH (76.38%) and ABTS (76.28%) free radicals at a concentration of 20 mg mL-1. According to the findings, the A. asplenioides crude methanol extract contains pharmaceutically valuable phytochemicals and may be useful for drug discovery.
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Affiliation(s)
- Mohammad Ahmad Wadaan
- Bio-Products Research Chair, Department of Zoology, College of Sciences, King Saud University, P.O. Box, 2455, Riyadh, 11451, Saudi Arabia.
| | - Almohannad Baabbad
- Bio-Products Research Chair, Department of Zoology, College of Sciences, King Saud University, P.O. Box, 2455, Riyadh, 11451, Saudi Arabia
| | - Muhammad Farooq Khan
- Bio-Products Research Chair, Department of Zoology, College of Sciences, King Saud University, P.O. Box, 2455, Riyadh, 11451, Saudi Arabia
| | - Mythili Saravanan
- Department of Pharmaceutical Sciences, North Carolina Central University, USA
| | - A Anderson
- Faculty of Science of Engineering, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India.
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Tomou EM, Papakyriakopoulou P, Skaltsa H, Valsami G, Kadoglou NPE. Bio-Actives from Natural Products with Potential Cardioprotective Properties: Isolation, Identification, and Pharmacological Actions of Apigenin, Quercetin, and Silibinin. Molecules 2023; 28:molecules28052387. [PMID: 36903630 PMCID: PMC10005323 DOI: 10.3390/molecules28052387] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/23/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
Cardiovascular diseases (CVDs) are the leading cause of morbidity and mortality worldwide. As a result, pharmaceutical and non-pharmaceutical interventions modifying risk factors for CVDs are a top priority of scientific research. Non-pharmaceutical therapeutical approaches, including herbal supplements, have gained growing interest from researchers as part of the therapeutic strategies for primary or secondary prevention of CVDs. Several experimental studies have supported the potential effects of apigenin, quercetin, and silibinin as beneficial supplements in cohorts at risk of CVDs. Accordingly, this comprehensive review focused critically on the cardioprotective effects/mechanisms of the abovementioned three bio-active compounds from natural products. For this purpose, we have included in vitro, preclinical, and clinical studies associated with atherosclerosis and a wide variety of cardiovascular risk factors (hypertension, diabetes, dyslipidemia, obesity, cardiac injury, and metabolic syndrome). In addition, we attempted to summarize and categorize the laboratory methods for their isolation and identification from plant extracts. This review unveiled many uncertainties which are still unexplored, such as the extrapolation of experimental results to clinical practice, mainly due to the small clinical studies, heterogeneous doses, divergent constituents, and the absence of pharmacodynamic/pharmacokinetic analyses.
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Affiliation(s)
- Ekaterina-Michaela Tomou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 15784 Athens, Greece
| | - Paraskevi Papakyriakopoulou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 15784 Athens, Greece
| | - Helen Skaltsa
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 15784 Athens, Greece
| | - Georgia Valsami
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 15784 Athens, Greece
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Fischer TE, Marcondes A, Zardo DM, Nogueira A, Calhelha RC, Vaz JA, Barros L, Zielinski AAF, Alberti A. Bioactive Activities of the Phenolic Extract from Sterile Bracts of Araucaria angustifolia. Antioxidants (Basel) 2022; 11:antiox11122431. [PMID: 36552640 PMCID: PMC9774675 DOI: 10.3390/antiox11122431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Sterile bracts can represent 80% of Araucaria angustifolia pinecone and are a rich source of phenolic compounds. This study aimed to optimize the extraction of the phenolic compounds from Araucaria angustifolia bracts using response surface methodology; the bioactivity properties were also investigated. The effects of the ethanol concentration, solute/solvent ratio, and temperature in relation to the phenolic composition and antioxidant activity were evaluated. The quantification and identification of the individual phenolic compounds (using high-performance liquid chromatography) and their bioactivity were evaluated. The optimized extraction conditions, which detected gallic acid, catechin, epicatechin, quercetin, and kaempferol, were obtained using 60% ethanol at a ratio of 1:38 (w/v) and a temperature of 80 °C. The extract showed high levels of phenolic classes and antioxidant activity. The extract also showed an inhibitory activity for pathogenic (approximately 80%, 10,000 µg/mL) and lactic acid (27.9%, 15,000 µg/mL) bacteria strains. The α-glucosidase inhibitory activity was approximately ten times greater than acarbose, demonstrating its high antiglycemic potential. No antioxidant and anti-inflammatory cellular activity were determined; however, a high cytotoxicity for non-tumor cells and the antiproliferative activity against the tumor cells were observed. Overall, the phenolic extract showed promising action in relation to the fight against the diseases related to oxidative stress and, hopefully, the application of the safe concentrations of the extract, based on bioavailability assays, can be verified.
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Affiliation(s)
- Thaís Estéfane Fischer
- Graduate Program in Food Science and Technology, State University of Ponta Grossa (UEPG), Ponta Grossa 84030-900, PR, Brazil
| | - Amanda Marcondes
- Graduate Program in Food Science and Technology, State University of Ponta Grossa (UEPG), Ponta Grossa 84030-900, PR, Brazil
| | - Danianni Marinho Zardo
- Graduate Program in Food Science and Technology, State University of Ponta Grossa (UEPG), Ponta Grossa 84030-900, PR, Brazil
| | - Alessandro Nogueira
- Graduate Program in Food Science and Technology, State University of Ponta Grossa (UEPG), Ponta Grossa 84030-900, PR, Brazil
| | - Ricardo C. Calhelha
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Josiana A. Vaz
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Acácio Antonio Ferreira Zielinski
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis 88010-970, SC, Brazil
| | - Aline Alberti
- Graduate Program in Food Science and Technology, State University of Ponta Grossa (UEPG), Ponta Grossa 84030-900, PR, Brazil
- Correspondence: ; Tel.: +55-42-32203775
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Yu Y, Liu G, Piao M, Lang M, Wang Y, Jin M, Li G, Zheng M. Chemical constituents of Polygonum aviculare L. and their chemotaxonomic significance. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Farooq U, Khan S, Naz S, Wani TA, Bukhari SM, Aborode AT, Shahzad SA, Zargar S. Three New Acrylic Acid Derivatives from Achillea mellifolium as Potential Inhibitors of Urease from Jack Bean and α-Glucosidase from Saccharomyces cerevisiae. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27155004. [PMID: 35956953 PMCID: PMC9370616 DOI: 10.3390/molecules27155004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/26/2022] [Accepted: 08/02/2022] [Indexed: 11/24/2022]
Abstract
(1) Background: Achillea mellifolium belongs to a highly reputed family of medicinal plants, with plant extract being used as medicine in indigenous system. However, limited data is available regarding the exploitation of the medicinal potential of isolated pure compounds from this family; (2) Methods: A whole plant extract was partitioned into fractions and on the basis of biological activity, an ethyl acetate fraction was selected for isolation of pure compounds. Isolated compounds were characterized using different spectroscopic techniques. The compounds isolated from this study were tested for their medicinal potential using in-vitro enzyme assay, coupled with in-silico studies; (3) Results: Three new acrylic acid derivatives (1–3) have been isolated from the ethyl acetate fraction of Achillea mellifolium. The characterization of these compounds (1–3) was carried out using UV/Vis, FT-IR, 1D and 2D-NMR spectroscopy (1H-NMR, 13C-NMR, HMBC, NOESY) and mass spectrometry. These acrylic acid derivatives were further evaluated for their enzyme inhibition potential against urease from jack bean and α glucosidase from Saccharomyces cerevisiae, using both in-silico and in-vitro approaches. In-vitro studies showed that compound 3 has the highest inhibition against urease enzyme (IC50 =10.46 ± 0.03 μΜ), followed by compound 1 and compound 2 with percent inhibition and IC50 value of 16.87 ± 0.02 c and 13.71 ± 0.07 μΜ, respectively, compared to the standard (thiourea-IC50 = 21.5 ± 0.01 μΜ). The investigated IC50 value of compound 3 against the urease enzyme is two times lower compared to thiourea, suggesting that this compound is twice as active compared to the standard drug. On the other hand, all three compounds (1–3) revealed mild inhibition potential against α-glucosidase. In-silico molecular docking studies, in combination with MD simulations and free energy, calculations were also performed to rationalize their time evolved mode of interaction inside the active pocket. Binding energies were computed using a MMPBSA approach, and the role of individual residues to overall binding of the inhibitors inside the active pockets were also computed; (4) Conclusions: Together, these studies confirm the inhibitory potential of isolated acrylic acid derivatives against both urease and α-glucosidase enzymes; however, their inhibition potential is better for urease enzyme even when compared to the standard.
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Affiliation(s)
- Umar Farooq
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
- Correspondence: (U.F.); (S.K.); Tel.: +92-992383591 (U.F. & S.K.)
| | - Sara Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
- Correspondence: (U.F.); (S.K.); Tel.: +92-992383591 (U.F. & S.K.)
| | - Sadia Naz
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
| | - Tanveer A. Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Syed Majid Bukhari
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
| | | | - Sohail Anjum Shahzad
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
| | - Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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Isolation and Characterisation of Hordatine-Rich Fractions from Brewer’s Spent Grain and Their Biological Activity on α-Glucosidase and Glycogen Phosphorylase α. SUSTAINABILITY 2022. [DOI: 10.3390/su14148421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hordatines are a characteristic class of secondary metabolites found in barley which have been reported to be present in barley malt, beer and, recently, brewer´s spent grain (BSG). However, little is known about their biological activities such as antioxidative effects in beer or antifungal activity as their main task within the plants. We conducted an in vitro investigation of the activity of hordatines isolated from BSG towards enzymes of glucose metabolism. Hordatine-rich fractions from BSG were prepared by solid-liquid extraction (SLE) with 60% acetone followed by purification and fractionation. The fractions were characterised and investigated for their in vitro inhibitory potential on α-glucosidase and glycogen phosphorylase α (GPα). Both enzymes are relevant within the human glucose metabolism regarding the digestion of carbohydrates as well as the liberation of glucose from the liver. In total, 10 hordatine-rich fractions varying in the composition of different hordatines were separated and analysed by mass spectrometry. Hordatine A, B and C, as well as hydroxylated aglycons and many glycosides, were detected in the fractions. The total hordatine content was analysed by HPLC-DAD using a semi-quantitative approach and ranged from 60.7 ± 3.1 to 259.6 ± 6.1 µg p-coumaric acid equivalents/mg fraction. Regarding the biological activity of fractions, no inhibitory effect on GPα was observed, whereas an inhibitory effect on α-glucosidase was detected (IC50 values: 77.5 ± 6.5–194.1 ± 2.6 µg/mL). Overall, the results confirmed that hordatines are present in BSG in relatively high amounts and provided evidence that they are potent inhibitors of α-glucosidase. Further research is needed to confirm these results and identify the active hordatine structure.
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Bashir K, Naz S, Rasheed HM, Farooq U, Shah AJ, McCauley EP, Crews P, Khan T. Tandem high resolution mass spectrometry based phytochemical composition of Sauromatum guttatum tubers and its enzyme inhibitory potential with molecular docking. J Chromatogr A 2022; 1672:463055. [DOI: 10.1016/j.chroma.2022.463055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 11/16/2022]
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Syabana MA, Yuliana ND, Batubara I, Fardiaz D. α-glucosidase inhibitors from Syzygium polyanthum (Wight) Walp leaves as revealed by metabolomics and in silico approaches. JOURNAL OF ETHNOPHARMACOLOGY 2022; 282:114618. [PMID: 34508803 DOI: 10.1016/j.jep.2021.114618] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/20/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Syzygium polyanthum (Wight) Walp leaves are traditionally used to cure diabetes in many regions of Indonesia. Traditional use involves boiling the leaves until the water is reduced to half volume, and then the decoction is taken 1-2 times daily. Despite several studies reporting the antidiabetic activity of this plant, bioactive compounds have not been well identified. AIM OF THE STUDY Indonesia is one of the countries with the highest diabetes cases, particularly type 2 diabetes mellitus (T2DM). Few people have access to modern medicinal treatment; thus, the role of antidiabetic traditional medicine has become increasingly important. This research aimed to identify α-glucosidase inhibitors from S. polyathum leaves using a metabolomics approach. When the active compounds of S. polyathum are properly identified, the quality of the herb can be more easily controlled. MATERIALS AND METHODS The dried leaves of S. polyanthum were extracted by a comprehensive extraction method using a solvent combination of n-hexane, acetone, and water in a gradient, resulting in a total of 42 fractions. All fractions were subjected to an in vitro α-glucosidase inhibition test and chemical profile analysis using Nuclear Magnetic Resonance (NMR) and high performance liquid chromatography (HPLC). Orthogonal projection least square (OPLS) analysis was used to correlate the two data to identify NMR signals, and HPLC chromatogram peaks correlated to the activity. 2D NMR and ultra-high-performance liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS) analyses were also used to give more precise compound identification. The activity of the identified active compounds was confirmed by an in silico technique. RESULTS AND DISCUSSION The results of the α-glucosidase activity test showed that the most active fractions were obtained from solvents with medium polarity: Fractions 9 and 10 (F9 and F10), obtained from gradient acetone-water 4:1 and 3:2, respectively. The IC50 values of F9 and F10 were 24.8 and 31.8 μg/mL, respectively. NMR data showed that F9 had more intense and diverse signals in the aromatic region than F10. OPLS analysis results showed that some typical flavonoid signals abundant in F9 positively correlated with α-glucosidase activity. 2D NMR and UHPLC-HRMS analysis of F9 led to the conclusion that these signals could be attributed to myricetin-3-O-rhamnoside (myricitrin) and epigallocatechin-3-gallate (EGCG). In silico analysis confirmed these results, as myricitrin and EGCG had binding energies resembling acarbose as a positive control (-8.47, -8.19, and -10.13, respectively). CONCLUSIONS NMR and HPLC-metabolomics successfully identified myricitrin and EGCG as α-glucosidase inhibitors from S. polyanthum leaves, and docking analysis validated their inhibitory activity. The results of this study justified the traditional use of S. polyanthum as an antidiabetes herbal.
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Affiliation(s)
- Mohamad Ana Syabana
- Department of Food Science and Technology, IPB Dramaga Campus, IPB University, Bogor, Indonesia; Department of Food Technology and Center of Excellence for Local Food Innovation, Sultan Ageng Tirtayasa University, Serang, Indonesia
| | - Nancy Dewi Yuliana
- Department of Food Science and Technology, IPB Dramaga Campus, IPB University, Bogor, Indonesia; Tropical Biopharmaca Research Center, IPB University, Bogor, Indonesia; Halal Science Center, IPB University, Bogor, Indonesia.
| | - Irmanida Batubara
- Department of Chemistry, IPB University, Bogor, Indonesia; Tropical Biopharmaca Research Center, IPB University, Bogor, Indonesia
| | - Dedi Fardiaz
- Department of Food Science and Technology, IPB Dramaga Campus, IPB University, Bogor, Indonesia
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12
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Bhuyan P, Ganguly M, Baruah I, Borgohain G, Hazarika J, Sarma S. Alpha glucosidase inhibitory properties of a few bioactive compounds isolated from black rice bran: combined in vitro and in silico evidence supporting the antidiabetic effect of black rice. RSC Adv 2022; 12:22650-22661. [PMID: 36105966 PMCID: PMC9373002 DOI: 10.1039/d2ra04228b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 07/30/2022] [Indexed: 12/15/2022] Open
Abstract
Alpha glucosidase inhibitors reduce post prandial hyperglycemia and are the drugs of choice for the treatment of type 2 diabetes. As synthetic α-glucosidase inhibitors often produce undesirable side effects, less toxic inhibitors from natural sources are in high demand.
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Affiliation(s)
- Pranjal Bhuyan
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
| | - Mausumi Ganguly
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
| | - Indrani Baruah
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
| | - Gargi Borgohain
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
| | - Jnyandeep Hazarika
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
| | - Shruti Sarma
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
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13
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Barbeya oleoides Leaves Extracts: In Vitro Carbohydrate Digestive Enzymes Inhibition and Phytochemical Characterization. Molecules 2021; 26:molecules26206229. [PMID: 34684810 PMCID: PMC8540058 DOI: 10.3390/molecules26206229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/06/2021] [Accepted: 10/12/2021] [Indexed: 01/06/2023] Open
Abstract
This study investigated the in vitro inhibitory potential of different solvent extracts of leaves of Barbeya oleoides on key enzymes related to type 2 diabetes mellitus (α-glucosidase and α-amylase) in combination with an aggregation assay (using 0.01% Triton X-100 detergent) to assess the specificity of action. The methanol extract was the most active in inhibiting α-glucosidase and α-amylase, with IC50 values of 6.67 ± 0.30 and 25.62 ± 4.12 µg/mL, respectively. However, these activities were significantly attenuated in the presence of 0.01% Triton X-100. The chemical analysis of the methanol extract was conducted utilizing a dereplication approach combing LC-ESI-MS/MS and database searching. The chemical analysis detected 27 major peaks in the negative ion mode, and 24 phenolic compounds, predominantly tannins and flavonol glycosides derivatives, were tentatively identified. Our data indicate that the enzyme inhibitory activity was probably due to aggregation-based inhibition, perhaps linked to polyphenols.
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14
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Suchaichit N, Pitchuanchom S, Kanokmedhakul K, Moosophon P, Chompoosor A, Kanokmedhakul S, Suchaichit NP. A New Apotirucallane from Walsura trichostemon Leaves and Its Antibacterial and α-Glucosidase Inhibitory Activities. Chem Biodivers 2021; 18. [PMID: 34145750 DOI: 10.1002/cbdv.202100134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/28/2021] [Indexed: 11/06/2022]
Abstract
Phytochemical investigation of Walsura trichostemon leaves led to the isolation of a new apotirucallane-type triterpenoid, 11,25-dideacetyl-16-hydroxytrichostemonate (1), along with two known apotirucallane-type triterpenoids (2 and 3), two known tirucallane-type triterpenes (4 and 5), and two known steroids (6 and 7). Their structures were identified by intensive analysis of 1D and 2D nuclear magnetic resonance, infrared, and mass spectrometry data, which were compared with data reported in the literature. Compounds 2, 3, and 5 exhibited moderate antibacterial activity against Pseudomonas aeruginosa (minimum inhibitory concentration (MIC) value: 64 μg/mL), and compound 4 showed weak antibacterial activity against P. aeruginosa (MIC: 128 μg/mL). Furthermore, compound 5 displayed activity against Bacillus cereus (MIC: 64 μg/mL). In addition, compound 4 showed stronger α-glucosidase inhibitory activity than the control, acarbose. The active compound 4 was subjected to molecular docking experiments using AutoDock4 and revealed precise interactions with the active gorge of the enzyme through hydrogen bonding, supporting the in vitro results.
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Affiliation(s)
- Nattawut Suchaichit
- Department of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, 30000, Thailand
| | - Siripit Pitchuanchom
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand
| | - Kwanjai Kanokmedhakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Panawan Moosophon
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Apiwat Chompoosor
- Department of Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkapi, Bangkok, 10240, Thailand
| | - Somdej Kanokmedhakul
- Natural Products Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Natcha P Suchaichit
- Department of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, 30000, Thailand
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15
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Bashir K, Naz S, Farooq U, Wahid F, Shah AJ, McCauley EP, Crews P, Khan T. Assessing the ethnobotanical potential of Carissa opaca berries by merging outcomes from metabolomics profiling, enzyme assays, and in silico docking studies. Food Chem 2021; 363:130259. [PMID: 34116492 DOI: 10.1016/j.foodchem.2021.130259] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/24/2021] [Accepted: 05/30/2021] [Indexed: 11/18/2022]
Abstract
The phytochemical profile of Carissa opaca fruit extract and fractions was established through dereplication strategies employing LC-MS/MS and global natural product social molecular networking (GNPS). Crude extract and fractions were evaluated for their potential to inhibit α-glucosidase and urease in vitro. Flavonoid-O-glycosides, flavonoid-C-glycosides, flavonoids, proanthocyanidin B2, phenolics, and triterpenoids were annotated as the major classes of secondary metabolites present in the extract and fractions. α-Glucosidase inhibition was associated with n-butanol and ethyl acetate fractions comparable to acarbose (IC50 = 120.43 µg/mL) with IC50 values of 123.67 and 131.72 µg/mL, respectively. The ethyl acetate fraction showed good urease inhibition comparable with thiourea (IC50 = 103.71 µg/mL) with an IC50 value of 109.14 µg/mL. Molecular docking studies of compounds observed in the crude extract and bioactive fractions had significant binding scores, which supported results for enzyme inhibition in vitro. This study provided a detailed phytochemical profile of C. opaca fruit and its enzyme inhibition potential.
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Affiliation(s)
- Kashif Bashir
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus 22060, Pakistan
| | - Sadia Naz
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus 22060, Pakistan
| | - Umar Farooq
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus 22060, Pakistan
| | - Fazli Wahid
- Department of Biomedical Sciences, Pak-Austria Fachhochschule: Institute of Applied Sciences and Technology, Mang, Khanpur Road, Haripur, Pakistan
| | - Abdul Jabbar Shah
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus 22060, Pakistan
| | - Erin P McCauley
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, United States; Department of Chemistry and Biochemistry, California State University Dominguez Hills, Carson, CA 90747, United States
| | - Phillip Crews
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, United States
| | - Taous Khan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus 22060, Pakistan.
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16
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Bioactive Components of Salvia and Their Potential Antidiabetic Properties: A Review. Molecules 2021; 26:molecules26103042. [PMID: 34065175 PMCID: PMC8161164 DOI: 10.3390/molecules26103042] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 11/24/2022] Open
Abstract
The utilization of therapeutic plants is expanding around the globe, coupled with the tremendous expansion of alternative medicine and growing demand in health treatment. Plants are applied in pharmaceuticals to preserve and expand health—physically, mentally and as well as to treat particular health conditions and afflictions. There are more than 600 families of plants identified so far. Among the plants that are often studied for their health benefit include the genus of Salvia in the mint family, Lamiaceae. This review aims to determine the bioactive components of Salvia and their potential as antidiabetic agents. The search was conducted using three databases (PubMed, EMBASE and Scopus), and all relevant articles that are freely available in the English language were extracted within 10 years (2011–2021). Salvia spp. comprises many biologically active components that can be divided into monoterpenes, diterpenes, triterpenes, and phenolic components, but only a few of these have been studied in-depth for their health benefit claims. The most commonly studied bioactive component was salvianolic acids. Interestingly, S. miltiorrhiza is undoubtedly the most widely studied Salvia species in terms of its effectiveness as an antidiabetic agent. In conclusion, we hope that this review stimulates more studies on bioactive components from medicinal plants, not only on their potential as antidiabetic agents but also for other possible health benefits.
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17
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Afzal H, Khan NUH, Sultana K, Mobashar A, Lareb A, Khan A, Gull A, Afzaal H, Khan MT, Rizwan M, Imran M. Schiff Bases of Pioglitazone Provide Better Antidiabetic and Potent Antioxidant Effect in a Streptozotocin-Nicotinamide-Induced Diabetic Rodent Model. ACS OMEGA 2021; 6:4470-4479. [PMID: 33623853 PMCID: PMC7893790 DOI: 10.1021/acsomega.0c06064] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 01/25/2021] [Indexed: 06/12/2023]
Abstract
Pioglitazone is a Food and Drug Administration-approved thiazolidinedione (TZD) derivative and peroxisome proliferator-activated receptor gamma (PPARγ) agonist and used for the treatment of diabetes mellitus (DM). However, this drug is still associated with many adverse effects. In the present study, four new Schiff bases of pioglitazone (P1-P4) were synthesized and characterized using FTIR, 1HNMR, 13CNMR, mass spectrometry, and elemental analysis. For preliminary screening, the in vitro 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay and in vitro alpha-amylase antidiabetic inhibitory assay were performed. Further, P3 was used to investigate in vivo antioxidant and in vivo antidiabetic effects in a streptozotocin-nicotinamide-induced diabetic rat model. Diabetic rats were administered with an i.p dose of pioglitazone 10 mg/kg body weight for 21 days. Moreover, biochemical parameters and antioxidants were quantified from liver and kidney tissues of rodents. In the DPPH assay, compound P3 showed superior antioxidant effects. Using the in vitro α-amylase inhibitory assay, P3 exhibited potent effects as compared to other groups, that is, 93% inhibition, while pioglitazone showed 81% inhibition. Enzymatic and nonenzymatic antioxidants showed significant changes in P3 (10 mg/kg)-treated groups (p < 0.001). Similarly, compound P3 produced significant and better results in comparison to pioglitazone in the rodent model. This study confirmed potent antidiabetic and superior antioxidant potential of the newly synthesized Schiff base (P3), which could ultimately account for insulin sensitization and for cellular protection and hence provide a potential clue for dual therapeutics.
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Affiliation(s)
- Hafiza
Rabia Afzal
- Department
of Pharmacy, The University of Lahore, Defense Road Campus, Lahore 54000, Pakistan
| | - Najm ul Hassan Khan
- Department
of Pharmacy, The University of Lahore, Defense Road Campus, Lahore 54000, Pakistan
| | - Kishwar Sultana
- Department
of Pharmacy, The University of Lahore, Defense Road Campus, Lahore 54000, Pakistan
| | - Aisha Mobashar
- Department
of Pharmacy, The University of Lahore, Defense Road Campus, Lahore 54000, Pakistan
| | - Aqsa Lareb
- Department
of Pharmacy, The University of Lahore, Defense Road Campus, Lahore 54000, Pakistan
| | - Ayesha Khan
- Department
of Pharmacy, The University of Lahore, Defense Road Campus, Lahore 54000, Pakistan
| | - Abrashim Gull
- Department
of Pharmacy, The University of Lahore, Defense Road Campus, Lahore 54000, Pakistan
| | - Hasan Afzaal
- Riphah
Institute of Pharmaceutical Sciences, Riphah
International University, Islamabad 44000 Pakistan
| | - Muhammad Tariq Khan
- Faculty
of Pharmacy, Capital University of Science
and Technology, Islamabad 44000, Pakistan
| | - Muhammad Rizwan
- Center
for Biotechnology and Microbiology, University
of Swat, Swat, Khyber Pakhtunkhwa 44000, Pakistan
| | - Muhammad Imran
- Riphah
Institute of Pharmaceutical Sciences, Riphah
International University, Islamabad 44000 Pakistan
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18
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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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Kumar P, Duhan M, Sindhu J, Kadyan K, Saini S, Panihar N. Thiazolidine‐4‐one clubbed pyrazoles hybrids: Potent α‐amylase and α‐glucosidase inhibitors with NLO properties. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3882] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Parvin Kumar
- Department of ChemistryKurukshetra University Kurukshetra India
| | - Meenakshi Duhan
- Department of ChemistryKurukshetra University Kurukshetra India
| | - Jayant Sindhu
- Department of ChemistryCOBS&H CCS Haryana Agricultural University Hisar India
| | - Kulbir Kadyan
- Department of ChemistryKurukshetra University Kurukshetra India
| | - Sangeeta Saini
- Department of ChemistryKurukshetra University Kurukshetra India
| | - Neeraj Panihar
- Department of Pharmaceutical ScienceG.J.U.S.T Hisar India
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López-Angulo G, Montes-Avila J, Díaz-Camacho SP, Vega-Aviña R, Ahumada-Santos YP, Delgado-Vargas F. Chemical composition and antioxidant, α-glucosidase inhibitory and antibacterial activities of three Echeveria DC. species from Mexico. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2014.11.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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21
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Cardullo N, Catinella G, Floresta G, Muccilli V, Rosselli S, Rescifina A, Bruno M, Tringali C. Synthesis of Rosmarinic Acid Amides as Antioxidative and Hypoglycemic Agents. JOURNAL OF NATURAL PRODUCTS 2019; 82:573-582. [PMID: 30785286 DOI: 10.1021/acs.jnatprod.8b01002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Type 2 diabetes mellitus (T2DM) is an important metabolic disorder for which there is an urgent need for new antidiabetic drugs. α-Glucosidase inhibition is an established protocol for T2DM therapy. Because hyperglycemia causes oxidative tissue damage, the development of agents with both α-glucosidase inhibition and antioxidant activity from natural or natural-derived polyphenols such derivatives of rosmarinic acid (RA) represents an attractive therapeutic option. We report a study on amides 1-10 derived from RA and their evaluation for yeast α-glucosidase inhibition and antioxidant activity (DPPH and ORAC tests). All amides showed higher inhibitory activity than that of RA, were by far more potent than the antidiabetic drug acarbose, and proved to be effective antioxidants. A molecular docking study displayed significant binding interactions of RA amides with the active site of α-glucosidase. This in silico optimization study led to the design and synthesis of amides 9 (IC50 = 42.3 μM) and 10 (IC50 = 35.2 μM), showing the most potent α-glucosidase inhibition and good antioxidative properties. A kinetic study showed that 10 acts as a mixed type inhibitor.
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22
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Nandini HS, Naik PR. Antidiabetic, antihyperlipidemic and antioxidant effect of Vincamine, in streptozotocin-induced diabetic rats. Eur J Pharmacol 2018; 843:233-239. [PMID: 30496743 DOI: 10.1016/j.ejphar.2018.11.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/23/2018] [Accepted: 11/23/2018] [Indexed: 12/20/2022]
Abstract
Diabetes mellitus is the most common endocrine disorder characterized by hyperglycemia resulting from defects in insulin secretion or insulin action. The present study was designed to investigate the antidiabetic effects of vincamine, one of the monoterpenoid indole alkaloid, in streptozotocin-induced diabetic rat model. Diabetes was induced in rats by an intraperitoneal injection of streptozotocin (40 mg/kg bw). Vincamine 20 and 30 mg/kg.bw were administrated orally as a single dose per day to the diabetic rats for 30 days. The vehicle control group received 0.5% dimethyl sulfoxide for the same duration. After 30 days of treatment, fasting blood glucose, glycosylated haemoglobin, total cholesterol, triglyceride, low-density lipoprotein cholesterol and very low-density lipoprotein cholesterol levels were significantly increased, whereas, body weight, plasma insulin, high-density lipoprotein cholesterol, antioxidant enzymes and reduced glutathione were markedly decreased in diabetic rats. Treatment with vincamine significantly restored these parameters to the normal level. The protective effect of vincamine was compared with glibenclamide, a well-known hypoglycemic drug. Our results clearly suggest that vincamine exhibit hypoglycemic, hypolipidemic and antioxidant activity. The anti-diabetic effect of vincamine was comparable to the protective effect of glibenclamide, suggesting its potential as a natural anti-diabetic compound with therapeutic benefits.
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Affiliation(s)
- H S Nandini
- Endocrinology Research Laboratory, Department of Studies in Zoology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India.
| | - Prakash Ramachandra Naik
- Endocrinology Research Laboratory, Department of Studies in Zoology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
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23
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Anti-Inflammatory, Anti-Diabetic, and Anti-Alzheimer's Effects of Prenylated Flavonoids from Okinawa Propolis: An Investigation by Experimental and Computational Studies. Molecules 2018; 23:molecules23102479. [PMID: 30262742 PMCID: PMC6222853 DOI: 10.3390/molecules23102479] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/24/2018] [Accepted: 09/26/2018] [Indexed: 12/15/2022] Open
Abstract
Okinawa propolis (OP) and its major ingredients were reported to have anti-cancer effects and lifespan-extending effects on Caenorhabditis elegans through inactivation of the oncogenic kinase, p21-activated kinase 1 (PAK1). Herein, five prenylated flavonoids from OP, nymphaeol-A (NA), nymphaeol-B (NB), nymphaeol-C (NC), isonymphaeol-B (INB), and 3'-geranyl-naringenin (GN), were evaluated for their anti-inflammatory, anti-diabetic, and anti-Alzheimer's effects using in vitro techniques. They showed significant anti-inflammatory effects through inhibition of albumin denaturation (half maximal inhibitory concentration (IC50) values of 0.26⁻1.02 µM), nitrite accumulation (IC50 values of 2.4⁻7.0 µM), and cyclooxygenase-2 (COX-2) activity (IC50 values of 11.74⁻24.03 µM). They also strongly suppressed in vitro α-glucosidase enzyme activity with IC50 values of 3.77⁻5.66 µM. However, only INB and NA inhibited acetylcholinesterase significantly compared to the standard drug donepezil, with IC50 values of 7.23 and 7.77 µM, respectively. Molecular docking results indicated that OP compounds have good binding affinity to the α-glucosidase and acetylcholinesterase proteins, making non-bonded interactions with their active residues and surrounding allosteric residues. In addition, none of the compounds violated Lipinski's rule of five and showed notable toxicity parameters. Density functional theory (DFT)-based global reactivity descriptors demonstrated their high reactive nature along with the kinetic stability. In conclusion, this combined study suggests that OP components might be beneficial in the treatment of inflammation, type 2 diabetes mellitus, and Alzheimer's disease.
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Adouni K, Zouaoui O, Chahdoura H, Thouri A, Lamine JB, Santos-Buelga C, González-Paramás AM, Maggi F, Mosbah H, Haouas Z, Neffati F, Achour L. In vitro antioxidant activity, α-glucosidase inhibitory potential and in vivo protective effect of Asparagus stipularis Forssk aqueous extract against high-fructose diet-induced metabolic syndrome in rats. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Yousefbeyk F, Vatandoost H, Golfakhrabadi F, Mirzaee Z, Abai MR, Amin G, Khanavi M. Antioxidant and Larvicidal Activity of Areal Parts of Scrophularia striata against Malaria Vector Anopheles stephensi. J Arthropod Borne Dis 2018; 12:119-126. [PMID: 30123805 PMCID: PMC6091803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 04/30/2018] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Scrophularia striata is a perennial plant which is native in all parts of Iran, Turkey, and Azerbaijan. In this study, the total phenol content, antioxidant and larvicidal activities of total extract and different fractions of this plant were evaluated. METHODS The aerial parts of S. striata were collected from Boli village, Illam Province, western Iran in Apr 2013. The total phenol content of total extract and different fractions were evaluated by Folin-Ciocalteu method. Moreover, antioxidant activity was tested by DPPH and FRAPS assays. Larvicidal activity was investigated according to standard method described by WHO. RESULTS Ethyl acetate fraction (EF) had the highest content of total phenol (75.9±0.06mg Gallic acid equivalent/g dry extract). Furthermore, among the tested extract, methanol-water fraction (MWF), total methanol extract (TME) and water fraction (WF) showed the highest antioxidant activity in the DPPH assay (IC50= 226.8, 283.66 and 299.4 μg.ml-1, respectively). In FRAP assay MWF and WF and TME had the highest antioxidant activities (664.4±0.002, 565.3±0.003, 519.5±0.003mmol FeII/g dry extract, respectively). Ethyl acetate fraction had maximum larvicidal activity (LC50 49.1ppm) followed by TME (LC50 64.26ppm) and hexane fraction (HF) (LC50 89.69). CONCLUSION Scrophularia striata collected from west of Iran illustrated considerable antioxidant and larvicidal effects and further in vitro and in vivo experimental models for investigation would be required.
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Affiliation(s)
- Fatemeh Yousefbeyk
- Department of Pharmacognosy, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Hassan Vatandoost
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Golfakhrabadi
- Department of Pharmacognosy, School of Pharmacy and Persian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Mirzaee
- Department of Pharmacognosy, School of Pharmacy and Persian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Abai
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Amin
- Department of Pharmacognosy, School of Pharmacy and Persian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahnaz Khanavi
- Department of Pharmacognosy, School of Pharmacy and Persian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran,Faculty of Land and Food Systems University of British Columbia, British Columbia, Canada,Corresponding author: Dr Mahnaz Khanavi, E-mail: ,
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Analysis of the Phytochemistry and Bioactivity of the Genus Polygonum of Polygonaceae. DIGITAL CHINESE MEDICINE 2018. [DOI: 10.1016/s2589-3777(19)30005-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Shafiee F, Khoshvishkaie E, Davoodi A, Dashti Kalantar A, Bakhshi Jouybari H, Ataee R. The Determination of Blood Glucose Lowering and Metabolic Effects of Mespilus germanica L. Hydroacetonic Extract on Streptozocin-Induced Diabetic Balb/c Mice. MEDICINES 2018; 5:medicines5010001. [PMID: 29301240 PMCID: PMC5874566 DOI: 10.3390/medicines5010001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/29/2017] [Accepted: 12/29/2017] [Indexed: 11/16/2022]
Abstract
Background: The serum glucose lowering, normalization animal body weight, and antioxidative stress effects of Mespilus germanica L. leaf extract were investigated in normal and streptozotocin-induced Balb/C mice. Methods: The phenol and flavonoid of the leaves of M. germanica were extracted by percolation and concentrated using a rotary evaporator. Its total phenol and flavonoid content was determined using folin and aluminum chloride methods, respectively. The study was conducted on 48 matured male Balb/C mice (20–30 g) divided into 6 groups (n = 8). Diabetes mellitus was induced by single intraperitoneal injection of 35 mg/kg of streptozotocin (STZ). Extracts of Mespilus germanica were used orally at the dose of 50, 100, and 200 mg/kg body weight per day for 21 days. Results: Oral administrations of the M. germanica L. leaf extract significantly decreased serum glucose, oxidative stress, and lipid peroxidation and maintained animal body weight during treatment period (p < 0.05) compared to metformin (200 mg/kg) in over 100 mg/kg, 200 mg/kg, and 50 mg/kg dosages, respectively. Conclusions: The present study indicated that the Mespilus germanica leaf extract significantly decreased serum glucose and maintained normal body weight in Balb/C diabetic mice.
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Affiliation(s)
- Fatemeh Shafiee
- Student Research Committee, Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari 4847193698, Iran.
| | - Elnaz Khoshvishkaie
- Student Research Committee, Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari 4847193698, Iran.
| | - Ali Davoodi
- Department of Pharmacognosy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari 4847193698, Iran.
- Medicinal Plants Research Center, Ayatollah Amoli Branch, Islamic Azad University, Amol 4635143358, Iran.
| | - Ayat Dashti Kalantar
- Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari 4847193698, Iran.
| | - Hossein Bakhshi Jouybari
- Department of Pharmacognosy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari 4847193698, Iran.
| | - Ramin Ataee
- Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari 4847193698, Iran.
- Thalassamia Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari 4847193698, Iran.
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Evaluation of Antioxidant Potentials and α-Amylase Inhibition of Different Fractions of Labiatae Plants Extracts: As a Model of Antidiabetic Compounds Properties. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7319504. [PMID: 29082253 PMCID: PMC5610887 DOI: 10.1155/2017/7319504] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 07/27/2017] [Indexed: 12/11/2022]
Abstract
In an attempt to identify herbal drugs which may become useful in the prevention of diabetes, antioxidant potentials and α-amylase inhibition by the ethanol extracts of two plants belonging to Lamiaceae family, Otostegia persica and Zataria multiflora, and their different fractions were studied. Also, inhibition of α-amylase by Salvia mirzayanii and its fractions was evaluated. All of the samples exhibited antioxidant activities, among which ethyl acetate fraction of Zataria multiflora (17.21 ± 0.17 mg GAE/g) was found to contain the highest amounts of phenols and the ethyl acetate fraction of Zataria multiflora (218 ± 2.76 mg QUE/g) had the most values of flavonoids. Ethyl acetate fraction of Zataria multiflora (IC50 = 3.05 ± 0.51 μg/ml) was shown to have the most reducing power and the ethyl acetate fraction of Zataria multiflora (IC50 = 32.17 ± 1.82 μg/ml) exhibited the highest DPPH radical scavenging. The ethyl acetate fraction of Otostegia persica (99.39 ± 0.94%) showed the highest α-amylase inhibitory activity which was similar to acarbose used as a standard. Mode of α-amylase inhibition of the most samples was uncompetitive except for ZMC, OPP, OPC, and SMP which presented competitive inhibition. The present findings showed that studied samples may have some compounds with antioxidant and antidiabetic effects.
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Bahadori MB, Salehi P, Sonboli A. Comparative study of the essential oil composition of Salvia urmiensis and its enzyme inhibitory activities linked to diabetes mellitus and Alzheimer’s disease. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2017. [DOI: 10.1080/10942912.2016.1263862] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Mir Babak Bahadori
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Peyman Salehi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Ali Sonboli
- Department of Biology, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
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Xiao J. Dietary flavonoid aglycones and their glycosides: Which show better biological significance? Crit Rev Food Sci Nutr 2017; 57:1874-1905. [PMID: 26176651 DOI: 10.1080/10408398.2015.1032400] [Citation(s) in RCA: 182] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The dietary flavonoids, especially their glycosides, are the most vital phytochemicals in diets and are of great general interest due to their diverse bioactivity. The natural flavonoids almost all exist as their O-glycoside or C-glycoside forms in plants. In this review, we summarized the existing knowledge on the different biological benefits and pharmacokinetic behaviors between flavonoid aglycones and their glycosides. Due to various conclusions from different flavonoid types and health/disease conditions, it is very difficult to draw general or universally applicable comments regarding the impact of glycosylation on the biological benefits of flavonoids. It seems as though O-glycosylation generally reduces the bioactivity of these compounds - this has been observed for diverse properties including antioxidant activity, antidiabetes activity, anti-inflammation activity, antibacterial, antifungal activity, antitumor activity, anticoagulant activity, antiplatelet activity, antidegranulating activity, antitrypanosomal activity, influenza virus neuraminidase inhibition, aldehyde oxidase inhibition, immunomodulatory, and antitubercular activity. However, O-glycosylation can enhance certain types of biological benefits including anti-HIV activity, tyrosinase inhibition, antirotavirus activity, antistress activity, antiobesity activity, anticholinesterase potential, antiadipogenic activity, and antiallergic activity. However, there is a lack of data for most flavonoids, and their structures vary widely. There is also a profound lack of data on the impact of C-glycosylation on flavonoid biological benefits, although it has been demonstrated that in at least some cases C-glycosylation has positive effects on properties that may be useful in human healthcare such as antioxidant and antidiabetes activity. Furthermore, there is a lack of in vivo data that would make it possible to make broad generalizations concerning the influence of glycosylation on the benefits of flavonoids for human health. It is possible that the effects of glycosylation on flavonoid bioactivity in vitro may differ from that seen in vivo. With in vivo (oral) treatment, flavonoid glycosides showed similar or even higher antidiabetes, anti-inflammatory, antidegranulating, antistress, and antiallergic activity than their flavonoid aglycones. Flavonoid glycosides keep higher plasma levels and have a longer mean residence time than those of aglycones. We should pay more attention to in vivo benefits of flavonoid glycosides, especially C-glycosides.
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Affiliation(s)
- Jianbo Xiao
- a Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau , Taipa , Macau.,b Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg , Am Hubland , Würzburg , Germany
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Huang M, Li J, Liu L, Yin S, Wang J, Lin Y. Phomopsichin A-D; Four New Chromone Derivatives from Mangrove Endophytic Fungus Phomopsis sp. 33. Mar Drugs 2016; 14:E215. [PMID: 27879655 PMCID: PMC5128758 DOI: 10.3390/md14110215] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/20/2016] [Accepted: 11/08/2016] [Indexed: 11/23/2022] Open
Abstract
Four new chromone derivatives, phomopsichins A-D (1-4), along with a known compound, phomoxanthone A (5), were isolated from the fermentation products of mangrove endophytic fungus Phomopsis sp. 33#. Their structures were elucidated based on comprehensive spectroscopic analysis coupled with single-crystal X-ray diffraction or theoretical calculations of electronic circular dichroism (ECD). They feature a tricyclic framework, in which a dihydropyran ring is fused with the chromone ring. Compounds 1-5 showed weak inhibitory activities on acetylcholinesterase as well as α-glucosidase, weak radical scavenging effects on 1,1-diphenyl-2-picrylhydrazyl (DPPH) as well as OH, and weak antimicrobial activities. Compounds 1-4 showed no cytotoxic activity against MDA-MB-435 breast cancer cells. Their other bioactivities are worthy of further study, considering their unique molecular structures.
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Affiliation(s)
- Meixiang Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Jing Li
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- Key Laboratory of Functional Molecules from Oceanic Microorganisms (Sun Yat-sen University), Department of Education of Guangdong Province, Guangzhou 510080, China.
| | - Lan Liu
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China.
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510006, China.
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Jun Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Yongcheng Lin
- Key Laboratory of Functional Molecules from Oceanic Microorganisms (Sun Yat-sen University), Department of Education of Guangdong Province, Guangzhou 510080, China.
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510006, China.
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China.
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Krishnasamy G, Muthusamy K, Chellappan DR, Subbiah N. Antidiabetic, antihyperlipidaemic, and antioxidant activity of Syzygium densiflorum fruits in streptozotocin and nicotinamide-induced diabetic rats. PHARMACEUTICAL BIOLOGY 2016; 54:1716-1726. [PMID: 26704340 DOI: 10.3109/13880209.2015.1125932] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 11/24/2015] [Indexed: 06/05/2023]
Abstract
Context Syzygium densiflorum Wall. ex Wight & Arn (Myrtaceae) has been traditionally used by local tribes of the Nilgiris, Tamil Nadu, India, for the treatment of diabetes, however, no definitive experimental studies are available. Objective This study investigates the antidiabetic, antihyperlipidaemic and antioxidant activities of ethanol extract of S. densiflorum (EFSD) fruits in streptozotocin (STZ) and nicotinamide (NA)-induced diabetic rats. Materials and methods Acute oral toxicity and oral glucose tolerance were assessed in normal rats. The antidiabetic, antihyperlipidaemic and antioxidant activities were investigated in STZ - NA-induced diabetic rats. Diabetic rats were orally administered with glibenclamide (10 mg/kg b.wt), EFSD (200, 400 and 800 mg/kg b.wt) for 28 d. Further, changes in the blood glucose level (BGL), biochemical parameters, antioxidants were observed and histology of pancreas was performed. Results No toxicity and lethality were observed. Results of the following parameters are represented by treated versus disease control (STZ + NA) groups. BGL (161.33 ± 22.8 versus 476.17 ± 56.58 mg/dl), glycosylated haemoglobin (5.285 ± 0.19 versus 8.05 ± 0.55%), urea (40.32 ± 1.96 versus 75.37 ± 2.91 mg/dl), uric acid (1.2 ± 0.07 versus 2.16 ± 0.05 mg/dl), total cholesterol (89.3 ± 5.14 versus 139.7 ± 5.95 mg/dl) and triglycerides (79.65 ± 2.52 versus 108.9 ± 3.61 mg/dl) were significantly decreased, whereas haemoglobin (11.75 ± 0.73 versus 7.95 ± 0.42 g/dl), high-density lipoprotein cholesterol (14.2 ± 1.11 versus 6.97 ± 0.84 mg/dl), total protein (45%) and liver glycogen (87%) were significantly increased in EFSD-treated diabetic group. Significant changes were observed in the enzymatic and non-enzymatic antioxidants in EFSD-treated groups (p < 0.001). Histopathological examination showed the regeneration of β-cells in Islets of Langerhans. Conclusion This study confirms the antidiabetic, antihyperlipidaemic and antioxidant activities of S. densiflorum fruits.
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Affiliation(s)
- Gopinath Krishnasamy
- a Department of Bioinformatics , Science Block, Alagappa University , Karaikudi , Tamil Nadu , India
| | - Karthikeyan Muthusamy
- a Department of Bioinformatics , Science Block, Alagappa University , Karaikudi , Tamil Nadu , India
| | - David Raj Chellappan
- b Central Animal House Facility, SASTRA University , Thanjavur , Tamil Nadu , India
| | - Nagarajan Subbiah
- c Organic Synthesis Group, Department of Chemistry , School of Chemical and Biotechnology, SASTRA University , Thanjavur , Tamil Nadu , India
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Thanh Tam N, Thien DD, Sung TV, Thi Hoang Anh N, Thuy TT, Trung KH, Xuan TD, Khanh TD. Evaluation of Ursolic Acid as the Main Component Isolated from Catharanthus roseus against Hyperglycemia. INTERNATIONAL LETTERS OF NATURAL SCIENCES 2016. [DOI: 10.18052/www.scipress.com/ilns.50.7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Ursolic acid with large amount (0.67% of dried plant weight) along with 7 compounds, namely as spatozoate (1), kaurenoic acid (2), ursonic acid (3), 3-hydroxy-11-ursen-28,13-olide (4), ursolic acid (5), vindoline (6) and mixture of β-sitosterol and stigmasterol were isolated from dichloromethane and ethyl acetate extracts which have shown anti-glucosidase activity of the whole plant of C.roseus. Some isolated compounds and their derivatives were also tested for anti-glucosidase and cytotoxicity.Ursolic acid was examined for hypoglycemic activity inalloxan-induced diabetic micewith dose of 200 and 300 mg/kg/day, respectively. The results have shown that the blood glucose level were reduced by 45.75% and 51.31% to compare with the control group. This study has confirmed that the main component of Vietnamese C. roseus has had significant anti-hyperglycemia activity.
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Wubshet SG, Brighente IMC, Moaddel R, Staerk D. Magnetic Ligand Fishing as a Targeting Tool for HPLC-HRMS-SPE-NMR: α-Glucosidase Inhibitory Ligands and Alkylresorcinol Glycosides from Eugenia catharinae. JOURNAL OF NATURAL PRODUCTS 2015; 78:2657-2665. [PMID: 26496505 PMCID: PMC5036580 DOI: 10.1021/acs.jnatprod.5b00603] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A bioanalytical platform combining magnetic ligand fishing for α-glucosidase inhibition profiling and HPLC-HRMS-SPE-NMR for structural identification of α-glucosidase inhibitory ligands, both directly from crude plant extracts, is presented. Magnetic beads with N-terminus-coupled α-glucosidase were synthesized and characterized for their inherent catalytic activity. Ligand fishing with the immobilized enzyme was optimized using an artificial test mixture consisting of caffeine, ferulic acid, and luteolin before proof-of-concept with the crude extract of Eugenia catharinae. The combination of ligand fishing and HPLC-HRMS-SPE-NMR identified myricetin 3-O-α-L-rhamnopyranoside, myricetin, quercetin, and kaempferol as α-glucosidase inhibitory ligands in E. catharinae. Furthermore, HPLC-HRMS-SPE-NMR analysis led to identification of six new alkylresorcinol glycosides, i.e., 5-(2-oxopentyl)resorcinol 4-O-β-D-glucopyranoside, 5-propylresorcinol 4-O-β-D-glucopyranoside, 5-pentylresorcinol 4-O-[α-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside, 5-pentylresorcinol 4-O-β-D-glucopyranoside, 4-hydroxy-3-O-methyl-5-pentylresorcinol 1-O-β-D-glucopyranoside, and 3-O-methyl-5-pentylresorcinol 1-O-[β-D-glucopyranosyl-(1→6)]-β-D-glucopyranoside.
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Affiliation(s)
- Sileshi G. Wubshet
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Inês M. C. Brighente
- Laboratório de Química de Produtos Naturais, Departamento de Química, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis-SC, 88040-900, Brazil
| | - Ruin Moaddel
- Biomedical Research Center, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, Maryland 21224, United States
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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Bahadori MB, Valizadeh H, Asghari B, Dinparast L, Moridi Farimani M, Bahadori S. Chemical composition and antimicrobial, cytotoxicity, antioxidant and enzyme inhibitory activities of Salvia spinosa L. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.09.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Antioxidant and α-glucosidase inhibitor activities of natural compounds isolated from Quercus gilva Blume leaves. Asian Pac J Trop Biomed 2015. [DOI: 10.1016/j.apjtb.2015.07.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Hlila MB, Mosbah H, Majouli K, Msaada K, Jannet HB, Aouni M, Selmi B. α-Glucosidase inhibition by Tunisian Scabiosa arenaria Forssk. extracts. Int J Biol Macromol 2015; 77:383-9. [DOI: 10.1016/j.ijbiomac.2015.03.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 11/28/2022]
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A Comparative In Vitro Study on the Antioxidant and Anti-acetylcholinesterase Properties of Aerial Parts of Strophanthus preusii Engl & Pax. W INDIAN MED J 2015; 63:408-15. [PMID: 25781275 DOI: 10.7727/wimj.2013.287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 01/21/2014] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To evaluate and compare the antioxidant and acetylcholinestrase (AChE)-inhibitory properties of aerial parts of Strophanthus preussii (leaves, stem and root named as SPL, SPS and SPR, respectively) while catechin served as standard. METHODS The antioxidant and AchE-inhibitory properties of the methanol extracts of SP were evaluated by standard in vitro methods viz: DPPH (2,2-diphenyl-1-picrylhydrazine), nitric oxide (NO), hydroxyl radical (OH-) and hydrogen peroxide (H2O2) radical scavenging assays as well as reducing power, Fe2+/ascorbate-induced lipid peroxidation (LPO) and AChE inhibition assays. The total phenolic and flavonoid contents of the extracts were also estimated. RESULTS High phenolic and flavonoid contents were found in the aerial parts of Strophanthus preussii. The amount of phenolic and flavonoids contents followed the order SPL > SPR > SPS at 250─1000 µg/ml. The results revealed that all the extracts showed antioxidant activities in vitro. However, SPL had the highest DPPH, H2O2 and OH radical scavenging abilitie, while the reducing power of the extracts followed the order SPR > SPL > SPS at 1000 µg/ml. In addition, SPL, SPS and SPR significantly inhibited LPO in rat liver by 42%, 23%, 35% and in rat brain by 68%, 31% and 51%, respectively. The LPO inhibitory activities of SPL were statistically similar to the standard. Only SPS produced significant NO scavenging effects among the extracts. The percentage inhibition of AChE activity was significant for SPL and SPR at 750 and 1000 µg/ml. CONCLUSION The leaves and root of Strophanthus preusii proved to be potent natural antioxidants and could justify their traditional use in the management of stress-related diseases.
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Mobinikhaledi A, Asghari B, Jabbarpour M. Design and Synthesis of New Benzimidazole and Pyrimidine Derivatives as α-glucosidase Inhibitor. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2015; 14:723-31. [PMID: 26330860 PMCID: PMC4518100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In an endeavor to find a novel series of antihyperglycemic agents, new benzimidazole and pyrimidine derivatives were successfully synthesized efficiently in high yield with high purity, starting from amino acids in the presence of phosphorus oxychloride (POCl3). The synthesized compounds were identified by (1)H-NMR, (13)C-NMR, FT-IR spectroscopic techniques and elemental analysis. All products were assayed for their inhibitory effects on yeast and rat intestinal α-glucosidases. The results revealed that compounds with aromatic amino acids moiety showed significant inhibition activity on the tested enzymes. Among the benzimidazole derivatives 4c and 4d exhibited the best activity against both of the tested enzymes. Also, among the pyrimidine derivatives 5c and 5d possessed significant inhibition action on the enzymes. The IC50 values for the most potent benzimidazole yeast and intestinal α-glucosidases inhibitor (4d) were found to be 9.1 and 36.7 µM, respectively. The IC50 values for the inhibition of yeast and intestinal α-glucosidases by the most active pyrimidine compound (5d) were calculated to be 8.3 and 21.8 µM, respectively. Overall, this study proved that benzimidazole and pyrimidine derivatives with aromatic amino acids moieties can represent novel promising α-glucosidase inhibitors.
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Affiliation(s)
| | - Behvar Asghari
- Department of Plant Production and Breeding Faculty of Engineering and Technology, Imam Khomeini International University, Qazvin, Iran.,E-mail:
| | - Mahsa Jabbarpour
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran.
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Ghareeb DA, ElAhwany AMD, El-Mallawany SM, Saif AA. In vitro screening for anti-acetylcholiesterase, anti-oxidant, anti-glucosidase, anti-inflammatory and anti-bacterial effect of three traditional medicinal plants. BIOTECHNOL BIOTEC EQ 2014; 28:1155-1164. [PMID: 26740784 PMCID: PMC4684064 DOI: 10.1080/13102818.2014.969877] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Accepted: 04/11/2014] [Indexed: 12/24/2022] Open
Abstract
In this study we investigated the phytoconstituents Calluna vulgaris, Ferula hermonis and Tribulus terrestris, and then assessed their possible biological activities by using standard methods. A preliminary phytochemical investigation of the three extracts revealed the presence of alkaloids, flavonoids, proteins, lipids, phenolic compounds, saponins, sterols and amino acids. Three extracts showed anti-oxidant effect as they inhibited the 1,1-diphenyl-2-picryl hydrazyl (DPPH) oxidation and production of thiobarbituric acid reactive substances (TBARS). Moreover, three extracts showed anti-acetylcholiesterase (AChE) and this effect was concentration dependent. C. vulgaris was the most potent inhibitor of AChE. Furthermore, the three plant extracts had an inhibitory effect toward α-glucosidase. The inhibitory effect was concentration dependent and the most potent inhibitor for α-glucosidase was the extract from T. terrestris. Calluna vulgaris showed anti-inflammatory effect at tested concentrations while the other two extracts exhibited this effect only at concentration of 25 μg/mL. Finally, C. vulgaris had a significant effect against pathogenic bacteria (Agrobacterium tumefaciens, Erwinia sp., Klebsiella pneumonia and Pseudomonas aeruginosa) in comparison to other extracts from Ferula sp., or Tribulus sp. In conclusion, all tested extracts could be promising sources for the treatment of diabetes, Alzheimer's disease, infectious diseases and oxidative stress related disorders because they are rich in phenols and flavonoids that give anti-oxidant molecules and produce an inhibitory effect against the tested enzymes.
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Affiliation(s)
- Doaa A Ghareeb
- Biochemistry Department, Faculty of Science, Alexandria University , Alexandria , Egypt
| | - Amani M D ElAhwany
- Plant and Microbiology Department, Faculty of Science, Alexandria University , Alexandria , Egypt
| | - Sherif M El-Mallawany
- Chemistry Department, Faculty of Science, Alexandria University , Alexandria , Egypt
| | - Ashraf A Saif
- Al-Leith University College, Umm Al-Qura University , Makkah , Saudi Arabia
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Wang SM, Han JJ, Ma K, Jin T, Bao L, Pei YF, Liu HW. New α-glucosidase inhibitors with p-terphenyl skeleton from the mushroom Hydnellum concrescens. Fitoterapia 2014; 98:149-55. [PMID: 25088970 DOI: 10.1016/j.fitote.2014.07.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 07/22/2014] [Accepted: 07/23/2014] [Indexed: 02/03/2023]
Abstract
The purpose of this study is to elucidate the bioactive components responsible for the the α-glucosidase inhibitory activity detected in the EtOAc extract of the mushroom Hydnellum concrescens. Two new p-terphenyl derivatives, concrescenins A (1) and B (2), in along with six known compounds thelephantins L (3), I (4), J (5), K (6), dihydroauran-tiacin dibenzoate (7), and curtisian A (8) were isolated from the fruiting bodies of H. concrescens. Their chemical structures were elucidated by NMR experiments. Compounds 1-4 and 6-8 showed the inhibitory activity against α-glucosidase with the IC50 of 0.99, 3.11, 4.53, 18.77, 2.98, 5.16, and 8.34 μM, respectively. Kinetic analysis of α-glucosidase indicated that compounds 1 and 2 inhibited the activity of α-glucosidase in a noncompetitive fashion with a Ki value of 0.02 and 0.21 μM, respectively. In antioxidant evaluation, compounds 1 and 4 showed weak DPPH scavenging activity (EC50=82.50 and 161.75 μM) and weak reducing ability (EC50=193.57 and 152.94 μM). The current research supports the potential use of mushroom-derived p-terphenyl derivatives for the treatment of diabetes.
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Affiliation(s)
- Shi-Mei Wang
- Laboratory of Microbiology, College of Life Science, Heilongjiang University, Harbin 150080, People's Republic of China; State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.1 Beichenxi Road, Chaoyang District, Beijing 100101, People's Republic of China
| | - Jun-Jie Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.1 Beichenxi Road, Chaoyang District, Beijing 100101, People's Republic of China
| | - Ke Ma
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.1 Beichenxi Road, Chaoyang District, Beijing 100101, People's Republic of China
| | - Tao Jin
- Laboratory of Microbiology, College of Life Science, Heilongjiang University, Harbin 150080, People's Republic of China.
| | - Li Bao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.1 Beichenxi Road, Chaoyang District, Beijing 100101, People's Republic of China
| | - Yun-Fei Pei
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.1 Beichenxi Road, Chaoyang District, Beijing 100101, People's Republic of China
| | - Hong-Wei Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.1 Beichenxi Road, Chaoyang District, Beijing 100101, People's Republic of China.
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Azerosides A and B: Two new phloroacetophenone glycosides from the roots of Dorema glabrum Fisch. & C.A. Mey. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1138-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Xiao J, Chen T, Cao H. WITHDRAWN: Flavonoid glycosylation and biological benefits. Biotechnol Adv 2014:S0734-9750(14)00092-5. [PMID: 24858477 DOI: 10.1016/j.biotechadv.2014.05.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 05/09/2014] [Accepted: 05/11/2014] [Indexed: 01/16/2023]
Abstract
This article has been withdrawn at the request of the editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- Jianbo Xiao
- Department of Biology, Shanghai Normal University, 100 Guilin Rd, Shanghai 200234, China; Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany; Anhui Academy of Applied Technology, Suixi Road 312, 230031 Hefei, Anhui, China.
| | - Tingting Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226007, China
| | - Hui Cao
- Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany; School of Chemistry and Chemical Engineering, Nantong University, Nantong 226007, China.
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Yousefbeyk F, Gohari AR, Hashemighahderijani Z, Ostad SN, Salehi Sourmaghi MH, Amini M, Golfakhrabadi F, Jamalifar H, Amin G. Bioactive Terpenoids and Flavonoids from Daucus littoralis Smith subsp. hyrcanicus Rech.f, an Endemic Species of Iran. ACTA ACUST UNITED AC 2014; 22:12. [PMID: 24397958 PMCID: PMC4029373 DOI: 10.1186/2008-2231-22-12] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 11/18/2013] [Indexed: 12/03/2022]
Abstract
Background Daucus littoralis Smith subsp. hyrcanicus Rech.f. (Apiaceae) is an endemic species in northern parts of Iran where it is commonly named Caspian carrot. The fruits have been used as condiment. Methods In a series of in vitro assays, antioxidant (DPPH and FRAP assays), cytotoxic and antimicrobial activities of different extracts of roots and fruits were evaluated for the first time. The separation and purification of the compounds were carried out on the most potent extracts using various chromatographic methods and identified by spectroscopic data (1H and 13C NMR). Results The results showed that among the extracts only fruit methanol extract (FME) has significant antioxidant activity (IC50 = 145.93 μg.ml-1 in DPPH assay and 358 ± 0.02 mmol FeII/g dry extract in FRAP assay). The radical scavenging activity of FME at 400 μg.ml-1 was comparable with α-tocopherol (40 μg.ml-1) and with BHA (100 μg.ml-1) (p > 0.05). FME did not show any toxicity against cancerous and normal cell lines. Fruit ethyl acetate extract (FEE) had cytotoxic activity against breast carcinoma and hepatocellular carcinoma cells (IC50 168.4 and 185 μg.ml-1, respectively), while it did not possess antioxidant activity in comparison with α-tocopherol and BHA as standard compounds. Ethyl acetate and methanol extract of fruits showed antimicrobial activity against Staphylococcus aureus (MIC: 3.75 mg.ml-1) and Candida albicans (MIC: 15.6 and 7.8 mg.ml-1, respectively). Four terpenoids were isolated form FEE including: β-sitosterol (1), stigmasterol (2), caryophyllene oxide (3), β-amyrin (4). Also, three flavonoids namely quercetin 3-O-β-glucoside (5), quercetin 3-O-β-galactoside (6) and luteolin (7) were isolated from FME. Conclusion This study showed that FEE and FME of D. littoralis Smith subsp. hyrcanicus Rech.f. had the highest biological activities which may be correlated with in vitro cytotoxic, antimicrobial and antioxidant activities of terpenoids and flavonoids components of the extracts.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Gholamreza Amin
- Department of Pharmacognosy, Faculty of Pharmacy and Medicinal Plants Research Centre, Tehran University of Medical Sciences, Tehran 14155-6451, Iran.
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