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Zhang DL, Hu YK, Wang L, He YB, Yang J, Zhao Y. Phloroglucinol derivatives with α-glucosidase inhibitory activities from Syzygium fluviatile. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2023; 25:1168-1174. [PMID: 37200198 DOI: 10.1080/10286020.2023.2212614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 05/06/2023] [Accepted: 05/07/2023] [Indexed: 05/20/2023]
Abstract
Four new phloroglucinol derivatives (1 - 4) were isolated from the leaves of Syzygium fluviatile. Their structures were elucidated by means of extensive spectroscopic data. Among them, compounds 1 and 3 showed significant inhibitory activity against α-glucosidase with IC50 values of 10.60 and 5.07 µM, respectively. The structure-activity relationship was also discussed briefly.
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Affiliation(s)
- Ding-Li Zhang
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Yi-Kao Hu
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Li Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yuan-Biao He
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yong Zhao
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
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2
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Effects of Phoenix dactylifera against Streptozotocin-Aluminium Chloride Induced Alzheimer's Rats and Their In Silico Study. BIOMED RESEARCH INTERNATIONAL 2023; 2023:1725638. [PMID: 36654869 PMCID: PMC9842421 DOI: 10.1155/2023/1725638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/20/2022] [Accepted: 12/20/2022] [Indexed: 01/12/2023]
Abstract
Phoenix dactylifera is known for medicinal importance due to its antioxidant, antidiabetic, antidepressant, and anti-inflammatory properties. This study is aimed at evaluating the effect of P. dactylifera seeds to cure Alzheimer's disease (AD). AD was induced in the rats with streptozotocin + aluminium chloride followed by treatment of methanolic extract of P. dactylifera seeds. The blood glucose levels were determined at regular intervals, which showed a prominent decrease in the extracts treated group. Behavior tests, including the Elevated Plus Maze (EPM) test and Morris Water Maze (MWM) test, were used to evaluate memory patterns in rats. The results indicated that extract-treated rats significantly improved memory behavior compared to the diseased group. After dissection, the serum electrolytes, antioxidant enzymes, and choline esterase enzymes were measured in different organs. The serum parameters creatinine, urea, and bilirubin increased after extract treatment. Similarly, the level of antioxidant enzymes like peroxidases (POD), glutathione (GSH), catalase (CAT), superoxide dismutase (SOD), and thiobarbituric acid reactive substance (TBARS) in the extract-treated group showed improved results that were close to the normal control group. The enzyme (lipase, insulin, amylase, and acetylcholine) levels were found enhanced in extract groups as compared to diseased rats. High-performance liquid chromatography (HPLC) was used to determine the level of dopamine and serotonin neurotransmitters, which were increased significantly for P. dactylifera seeds with values of 0.18 μg/mg tissue and 0.56 μg/mg tissue, respectively. Overall, results showed that P. dactylifera seeds proved to be quite efficient in improving the memory and behavior of treated rats. The antioxidants and enzymes were also increased; therefore, it may be a potential candidate for treating AD.
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Belaabed S, Khalfaoui A, Parisi V, Santoro V, Russo D, Ponticelli M, Monné M, Rebbas K, Milella L, Donadio G. Rhanteriol, a New Rhanterium suaveolens Desf. Lignan with Pharmacological Potential as an Inhibitor of Enzymes Involved in Neurodegeneration and Type 2 Diabetes. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12020301. [PMID: 36679017 PMCID: PMC9865629 DOI: 10.3390/plants12020301] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 05/30/2023]
Abstract
Several specialized plant metabolites are reported to be enzyme inhibitors. In this investigation, the phytochemical composition and the biological activity of Rhanterium suaveolens Desf. were studied. One new lignan (rhanteriol 1) and seven known secondary metabolites were isolated from the aerial parts of R. suaveolens by using different chromatographic procedures. The biological properties of the R. suaveolens extracts and the new compound were evaluated by measuring their ability to inhibit the cholinesterase and carbohydrate-hydrolyzing enzymes, using cell-free in vitro methods. The new lignan, rhanteriol, was shown to inhibit α-amylase and α-glucosidase (IC50 = 46.42 ± 3.25 μM and 26.76 ± 3.29 μM, respectively), as well as butyrylcholinesterase (IC50 = 10.41 ± 0.03 μM), with an effect comparable to that of the respective standards, acarbose and galantamine. Furthermore, docking studies were performed suggesting the interaction mode of rhanteriol with the active sites of the investigated enzymes. The obtained data demonstrated that the aerial part of R. suaveolens could represent a source of active molecules, such as rhanteriol, usable in the development of treatments for preventing or treating type 2 diabetes mellitus and neurodegeneration.
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Affiliation(s)
- Soumia Belaabed
- Department of Chemistry, Research Unit, Development of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis, University Mentouri, Route Ain ElBey, Constantine 25000, Algeria
| | - Ayoub Khalfaoui
- Department of Chemistry, Research Unit, Development of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis, University Mentouri, Route Ain ElBey, Constantine 25000, Algeria
| | - Valentina Parisi
- Dipartimento di Farmacia, Università Degli Studi di Salerno, via Giovanni Paolo II 132, Fisciano, 84084 Salerno, Italy
- PhD Program in Drug Discovery and Development, Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, Fisciano, 84084 Salerno, Italy
| | - Valentina Santoro
- Dipartimento di Farmacia, Università Degli Studi di Salerno, via Giovanni Paolo II 132, Fisciano, 84084 Salerno, Italy
| | - Daniela Russo
- Dipartimento di Scienze, Università Degli Studi Della Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy
- BioActiPlant s.r.l., Viale Dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Maria Ponticelli
- Dipartimento di Scienze, Università Degli Studi Della Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Magnus Monné
- Dipartimento di Scienze, Università Degli Studi Della Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Khellaf Rebbas
- Natural and Life Sciences Department, Mohamed Boudiaf University, M’Sila 28000, Algeria
| | - Luigi Milella
- Dipartimento di Scienze, Università Degli Studi Della Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Giuliana Donadio
- Dipartimento di Farmacia, Università Degli Studi di Salerno, via Giovanni Paolo II 132, Fisciano, 84084 Salerno, Italy
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Sodhani H, Hedaoo S, Murugesan G, Pai S, Vinayagam R, Varadavenkatesan T, Bharath G, Haija MA, Nadda AK, Govarthanan M, Selvaraj R. Adsorptive removal of Acid Blue 113 using hydroxyapatite nanoadsorbents synthesized using Peltophorum pterocarpum pod extract. CHEMOSPHERE 2022; 299:134752. [PMID: 35513083 DOI: 10.1016/j.chemosphere.2022.134752] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/01/2022] [Accepted: 04/24/2022] [Indexed: 06/14/2023]
Abstract
The present work reports the study on the green synthesis of hydroxyapatite (HAP) nanoadsorbents using Peltophorum pterocarpum pod extract. HAP nanoadsorbents were characterized by using FESEM, EDS, TEM, XRD, FTIR, XPS, and BET analyses. The results highlighted the high purity, needle-like aggregations, and crystalline nature of the prepared HAP nanoadsorbents. The surface area was determined as 40.04 m2/g possessing mesopores that can be related to the high adsorption efficiency of the HAP for the removal of a toxic dye, - Acid Blue 113 (AB 113) from water. Central Composite Design (CCD) was used for optimizing the adsorption process, which yielded 94.59% removal efficiency at the optimum conditions (dose: 0.5 g/L, AB 113 dye concentration: 25 ppm, agitation speed: 173 rpm, and adsorption time: 120 min). The adsorption kinetics followed the pseudo-second-order model (R2:0.9996) and the equilibrium data fitted well with the Freundlich isotherm (R2:0.9924). The thermodynamic parameters indicated that the adsorption of AB 113 was a spontaneous and exothermic process. The highest adsorption capacity was determined as 153.85 mg/g, which suggested the promising role of green HAP nanoadsorbents in environmental remediation applications.
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Affiliation(s)
- Hriday Sodhani
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Shantanu Hedaoo
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Gokulakrishnan Murugesan
- Department of Biotechnology, M.S.Ramaiah Institute of Technology, Bengaluru, 560054, Karnataka, India
| | - Shraddha Pai
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Ramesh Vinayagam
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Thivaharan Varadavenkatesan
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - G Bharath
- Department of Chemistry, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Mohammad Abu Haija
- Department of Chemistry, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Ashok Kumar Nadda
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, 173 234, India
| | - Muthusamy Govarthanan
- Department of Environmental Engineering, Kyungpook National University, 41566, Daegu, Republic of Korea; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, India
| | - Raja Selvaraj
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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Sarmah S, Roy AS. A review on prevention of glycation of proteins: Potential therapeutic substances to mitigate the severity of diabetes complications. Int J Biol Macromol 2022; 195:565-588. [DOI: 10.1016/j.ijbiomac.2021.12.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 12/03/2021] [Accepted: 12/05/2021] [Indexed: 12/21/2022]
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Riyaphan J, Pham DC, Leong MK, Weng CF. In Silico Approaches to Identify Polyphenol Compounds as α-Glucosidase and α-Amylase Inhibitors against Type-II Diabetes. Biomolecules 2021; 11:1877. [PMID: 34944521 PMCID: PMC8699780 DOI: 10.3390/biom11121877] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 01/01/2023] Open
Abstract
Type-II diabetes mellitus (T2DM) results from a combination of genetic and lifestyle factors, and the prevalence of T2DM is increasing worldwide. Clinically, both α-glucosidase and α-amylase enzymes inhibitors can suppress peaks of postprandial glucose with surplus adverse effects, leading to efforts devoted to urgently seeking new anti-diabetes drugs from natural sources for delayed starch digestion. This review attempts to explore 10 families e.g., Bignoniaceae, Ericaceae, Dryopteridaceae, Campanulaceae, Geraniaceae, Euphorbiaceae, Rubiaceae, Acanthaceae, Rutaceae, and Moraceae as medicinal plants, and folk and herb medicines for lowering blood glucose level, or alternative anti-diabetic natural products. Many natural products have been studied in silico, in vitro, and in vivo assays to restrain hyperglycemia. In addition, natural products, and particularly polyphenols, possess diverse structures for exploring them as inhibitors of α-glucosidase and α-amylase. Interestingly, an in silico discovery approach using natural compounds via virtual screening could directly target α-glucosidase and α-amylase enzymes through Monte Carto molecular modeling. Autodock, MOE-Dock, Biovia Discovery Studio, PyMOL, and Accelrys have been used to discover new candidates as inhibitors or activators. While docking score, binding energy (Kcal/mol), the number of hydrogen bonds, or interactions with critical amino acid residues have been taken into concerning the reliability of software for validation of enzymatic analysis, in vitro cell assay and in vivo animal tests are required to obtain leads, hits, and candidates in drug discovery and development.
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Affiliation(s)
| | - Dinh-Chuong Pham
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam;
| | - Max K. Leong
- Department of Chemistry, National Dong Hwa University, Hualien 97401, Taiwan
| | - Ching-Feng Weng
- Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, China
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Chemical composition and in vitro antihyperglycemic potential of Kainth fruit (Pyrus pashia Buch.-Ham ex D. Don). FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Glycoside Hydrolases and Non-Enzymatic Glycation Inhibitory Potential of Viburnum opulus L. Fruit-In Vitro Studies. Antioxidants (Basel) 2021; 10:antiox10060989. [PMID: 34205673 PMCID: PMC8235151 DOI: 10.3390/antiox10060989] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/15/2021] [Accepted: 06/18/2021] [Indexed: 01/04/2023] Open
Abstract
Phytochemicals of various origins are of great interest for their antidiabetic potential. In the present study, the inhibitory effects against carbohydrate digestive enzymes and non-enzymatic glycation, antioxidant capacity, and phenolic compounds composition of Viburnum opulus L. fruits have been studied. Crude extract (CE), purified extract (PE), and ethyl acetate (PEAF) and water (PEWF) fractions of PE were used in enzymatic assays to evaluate their inhibitory potential against α-amylase with potato and rice starch as substrate, α-glucosidase using maltose and sucrose as substrate, the antioxidant capacity (ABTS, ORAC and FRAP assays), antiglycation (BSA-fructose and BSA-glucose model) properties. Among four tested samples, PEAF not only had the highest content of total phenolics, but also possessed the strongest α-glucosidase inhibition, antiglycation and antioxidant activities. UPLC analysis revealed that this fraction contained mainly chlorogenic acid, proanthocyanidin oligomers and flavalignans. Contrary, the anti-amylase activity of V. opulus fruits probably occurs due to the presence of proanthocyanidin polymers and chlorogenic acids, especially dicaffeoylquinic acids present in PEWF. All V. opulus samples have an uncompetitive and mixed type inhibition against α-amylase and α-glucosidase, respectively. Considering strong anti-glucosidase, antioxidant and antiglycation activities, V. opulus fruits may find promising applications in nutraceuticals and functional foods with antidiabetic activity.
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9
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Antioxidant and Cell Proliferation Properties of the Vietnamese Traditional Medicinal Plant Peltophorum pterocarpum. Molecules 2020; 25:molecules25204800. [PMID: 33086647 PMCID: PMC7587549 DOI: 10.3390/molecules25204800] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 02/06/2023] Open
Abstract
Peltophorum pterocarpum is regarded as one of the most important medicinal plants in the traditional medicine system of Vietnam. However, scientific evidence for the antioxidant effects against lipid peroxidation and the potential effects in cancer of this plant are lacking. In our experiments, 70% ethanolic extracts of P. pterocarpum leaves (LPP) and stem bark (SPP) were evaluated for their low-density lipoprotein (LDL) oxidation and cytotoxic activity against cancer cell lines. Both LPP and SPP inhibited Cu2+-mediated LDL by increasing the lag time of conjugated diene formation and inhibiting the generation of thiobarbituric acid reactive substances (TBARS) in a dose-dependent manner. In cancer cells, LPP and SPP triggered the most potent cytotoxic effects against human leukemia cells, CRF-SBA and HL-60, with half-maximal inhibitory concentration (IC50) values ranging from 118.5 to 157.2 µg/mL. SPP exhibited significant cytotoxicity against MIA PACA2, A549, and KG cell lines with IC50 values of 167.5, 244.1 and 255.0 µg/mL, respectively. Meanwhile, LPP showed cytotoxic activity against KG with an IC50 value of 228.1 µg/mL. SPP mediated cytotoxicity in HL-60 and CCRF-SBA cells through the activation of the apoptosis pathway, including the activation of caspases 3, and 9 and poly (ADP-ribose) polymerase (PARP). These results suggested that SPP may prevent the development and progression of atherosclerosis and leukemia in humans.
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Supriyadi A, Arum LS, Nugraha AS, Istri Ratnadewi AA, Siswoyo TA. Revealing Antioxidant and Antidiabetic Potency of Melinjo (Gnetum Gnemon) Seed Protein Hydrolysate at Different Stages of Seed Maturation. CURRENT RESEARCH IN NUTRITION AND FOOD SCIENCE 2019. [DOI: 10.12944/crnfsj.7.2.17] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
roteins hydrolyzed from melinjo seeds (Gnetum gnemon) at green (GM), yellow (YM) and red (RM) stages of maturity were studied for their effectiveness in antioxidant and antidiabetic activities. The seed protein extract was hydrolyzed using alcalase 2.4L, and the resulting hydrolysates with the highest degree of hydrolysis, protein profile, and the most potent contributors to antioxidant and invitro antidiabetic activities were identified. The degree of hydrolysis value of hydrolysates ranged from 52-84%, and the SDS-PAGE protein profile showed two distinct bands in which the band with molecular weight of 30 kDa degraded more intensively. Antioxidant capacity was measured using different standard methods, including radical cation 2,2-azinobis-(3-ethylbenzothizoline-6-sulphonate) (ABTS•+) assay, hydroxyl radical (OH•), and superoxide anion (O2•-) scavenging. The green hydrolysate (GMH) had significantly higher (p<0.05) free radical scavenging (ABTS•+, OH•, and O2•-) activities than that of the yellow hydrolysate (YMH) and red hydrolysate (RMH). However, invitro antidiabetic testing was performed based on the inhibitory activity of α-amylase and α-glucosidase. GMH was found to be more effective than YMH and RMH. These results showed that the antioxidant and antidiabetic activity in hydrolyzed GM protein has high potential to be utilized as natural nutraceuticals.
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Affiliation(s)
- Anang Supriyadi
- Graduate Program of Biotechnology and Pusat Unggulan Bioteknologi Tanaman Industri (PU BioTIn), University of Jember, Jember-68121, Indonesia
| | - Laras Sekar Arum
- Graduate Program of Biotechnology and Pusat Unggulan Bioteknologi Tanaman Industri (PU BioTIn), University of Jember, Jember-68121, Indonesia
| | - Ari Satia Nugraha
- Graduate Program of Biotechnology and Pusat Unggulan Bioteknologi Tanaman Industri (PU BioTIn), University of Jember, Jember-68121, Indonesia
| | - Anak Agung Istri Ratnadewi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Jember, Jalan Kalimantan 37, Jember 68121, Indonesia
| | - Tri Agus Siswoyo
- Department of Agronomy, Faculty of Agriculture, University of Jember, Jember 68121, Indonesia
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11
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El-Hawary SS, Tadros SH, AbdelMohsen MM, Mohamed MS, El Sheikh E, Nazif NM, ElNasr MS. Phyto- and Bio-Chemical evaluation of Diospyros kaki L. cultivated in Egypt and its biological activities. BRAZ J BIOL 2019; 80:295-304. [PMID: 31389482 DOI: 10.1590/1519-6984.200460] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 02/18/2019] [Indexed: 11/21/2022] Open
Abstract
Diospyros kaki L. or Costata cultivar is the main persimmon variety progressively consumed in the Egyptian market and exportation. The objective of this study was to investigate the bioprotective effects of the alcoholic extract of fruits as well as leaves of D. kaki using in-vivo rat models. Petroleum ether extracts of fruits and leaves were analytically characterized for saponifiable and unsaponifiable compounds by GC/MS. Main flavonoids were chromatographically isolated from 80% aqueous methanol extract of leaves. Chemical evaluation for fruits and leaves namely, content of moisture, ash, proteins, fatty acids, amino acids, fat and water soluble vitamins, minerals, carotenoids was carried out. Total antioxidant activity was determined by radical scavenging effects using DPPH assay. The effect on biochemical parameters and its biological activity were also performed. Results revealed the identification of the major compounds of saponifiable and unsaponifiable matters of fruits and leaves. Scopoletin, as well as, kaempferol, luteolin, rutin and apigenin 7-O-glucoside were isolated and identified. It showed that this plant can provide a good nutritional value and it is safe regarding the kidney and liver functions, good source that help in enhancing the antioxidant defense against free radicals. No abnormal effects were found in lipids profile on experimental animals and there were good results in the ratio of HDL and LDL cholesterol. Also, this plant can help in optimizing blood sugar, enhancing the level of blood haemoglobin. It is concluded that D. kaki displays a good source of nutrients and bioactive compounds that may contribute to its therapeutic benefits against the risk of disease complications.
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Affiliation(s)
- S S El-Hawary
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr-EL-Ainy St., Cairo 11562, Egypt
| | - S H Tadros
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr-EL-Ainy St., Cairo 11562, Egypt
| | - M M AbdelMohsen
- Phytochemistry Department, National Research Centre, 33 El-Bohouth St., Former El Tahrir St., P.O.12622, Dokki, Giza, Egypt
| | - M S Mohamed
- Nutrition and Food Sciences Department, National Research Centre, 33 El-Bohouth St., Former El Tahrir St., P.O.12622, Dokki, Giza, Egypt
| | - E El Sheikh
- Phytochemistry Department, National Research Centre, 33 El-Bohouth St., Former El Tahrir St., P.O.12622, Dokki, Giza, Egypt
| | - N M Nazif
- Phytochemistry Department, National Research Centre, 33 El-Bohouth St., Former El Tahrir St., P.O.12622, Dokki, Giza, Egypt
| | - M S ElNasr
- Phytochemistry Department, National Research Centre, 33 El-Bohouth St., Former El Tahrir St., P.O.12622, Dokki, Giza, Egypt
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12
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Diéguez-Santana K, Rivera-Borroto OM, Puris A, Pham-The H, Le-Thi-Thu H, Rasulev B, Casañola-Martin GM. Beyond model interpretability using LDA and decision trees for α-amylase and α-glucosidase inhibitor classification studies. Chem Biol Drug Des 2019; 94:1414-1421. [PMID: 30908888 DOI: 10.1111/cbdd.13518] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 02/17/2019] [Accepted: 03/03/2019] [Indexed: 12/17/2022]
Abstract
In this report are used two data sets involving the main antidiabetic enzyme targets α-amylase and α-glucosidase. The prediction of α-amylase and α-glucosidase inhibitory activity as antidiabetic is carried out using LDA and classification trees (CT). A large data set of 640 compounds for α-amylase and 1546 compounds in the case of α-glucosidase are selected to develop the tree model. In the case of CT-J48 have the better classification model performances for both targets with values above 80%-90% for the training and prediction sets, correspondingly. The best model shows an accuracy higher than 95% for training set; the model was also validated using 10-fold cross-validation procedure and through a test set achieving accuracy values of 85.32% and 86.80%, correspondingly. Additionally, the obtained model is compared with other approaches previously published in the international literature showing better results. Finally, we can say that the present results provided a double-target approach for increasing the estimation of antidiabetic chemicals identification aimed by double-way workflow in virtual screening pipelines.
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Affiliation(s)
| | - Oscar M Rivera-Borroto
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
| | - Amilkar Puris
- Facultad de Ciencias de La Ingeniería, Universidad Técnica Estatal de Quevedo, Quevedo, Ecuador
| | | | - Huong Le-Thi-Thu
- School of Medicine and Pharmacy, Vietnam National University, Hanoi, Vietnam
| | - Bakhtiyor Rasulev
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota
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Meng Q, Chen F, Xiao T, Zhang L. Inhibitory effects of polysaccharide from Diaphragma juglandis fructus on α-amylase and α-d-glucosidase activity, streptozotocin-induced hyperglycemia model, advanced glycation end-products formation, and H2O2-induced oxidative damage. Int J Biol Macromol 2019; 124:1080-1089. [DOI: 10.1016/j.ijbiomac.2018.12.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/27/2018] [Accepted: 12/01/2018] [Indexed: 12/16/2022]
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14
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Eldebss TMA, Farag AM, Abdalla MM, Khedr AA. Synthesis of Some New Pyrazolone‐Based Heterocycles Containing Sulphone Moiety Acting as α‐Glucosidase and α‐Amylase Inhibitors. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Taha M. A. Eldebss
- Department of Chemistry, Faculty of ScienceCairo University Giza 12613 Egypt
| | - Ahmad M. Farag
- Department of Chemistry, Faculty of ScienceCairo University Giza 12613 Egypt
| | | | - Ahmad A. Khedr
- Department of Chemistry, Faculty of ScienceCairo University Giza 12613 Egypt
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15
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Chemical Constituents of the Leaves of Peltophorum pterocarpum and Their Bioactivity. Molecules 2019; 24:molecules24020240. [PMID: 30634658 PMCID: PMC6359222 DOI: 10.3390/molecules24020240] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 01/19/2023] Open
Abstract
Two new sesquiterpenoids peltopterins A and B (compounds 1 and 2) and fifty-two known compounds were isolated from the methanol extract of P. pterocarpum and their chemical structures were established through spectroscopic and mass spectrometric analyses. The isolates 40, 43, 44, 47, 48, 51 and 52 exhibited potential inhibitory effects of superoxide anion generation or elastase release.
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Characterization and evaluation of smart releasing polysaccharide from yellow poinciana seed of Jharkhand. Int J Biol Macromol 2018; 118:2156-2162. [DOI: 10.1016/j.ijbiomac.2018.07.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 12/31/2022]
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Masilamani T, Subramaniam T, Nordin N, Rosli R. Neuroprotective effects of Peltophorum pterocarpum leaf extract against hydrogen peroxide induced oxidative stress and cytotoxicity. CLINICAL PHYTOSCIENCE 2017. [DOI: 10.1186/s40816-017-0054-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Sun Q, Xu NY, Li QR, Yao S, Li M, Li HR, Zhang J, Chen DF. Antiglycemic and anticomplementary potential of an edible plant Gnaphalium hypoleucum DC. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Hung WC, Ling XH, Chang CC, Hsu HF, Wang SW, Lee YC, Luo C, Lee YT, Houng JY. Inhibitory Effects of Siegesbeckia orientalis Extracts on Advanced Glycation End Product Formation and Key Enzymes Related to Metabolic Syndrome. Molecules 2017; 22:molecules22101785. [PMID: 29065451 PMCID: PMC6151556 DOI: 10.3390/molecules22101785] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/14/2017] [Accepted: 10/16/2017] [Indexed: 12/30/2022] Open
Abstract
Metabolic syndrome typically includes Type 2 diabetes associated with hyperglycemia, central obesity, dyslipidemia and hypertension. It is highly related to oxidative stress, formation of advanced glycated end products (AGEs) and key enzymes, such as carbohydrate digesting enzymes like pancreatic α-amylase and intestinal α-glucosidase, pancreatic lipase and angiotensin I-converting enzyme (ACE). This study used an in vitro approach to assess the potential of four extracts of Siegesbeckia orientalis linne on key enzymes relevant to metabolic syndrome. In this research, S. orientailis was firstly extracted by ethanol. The ethanol extract (SE) was then partitioned sequentially with hexane, ethyl acetate and methanol, and these extracts were named SE-Hex, SE-EA and SE-MeOH, respectively. The experimental results showed that SE-EA had the highest total phenolic content (TPC, 76.9 ± 1.8 mg/g) and the total flavonoids content (TFC, 5.3 ± 0.3 mg/g). This extract exhibited the most significant antioxidant activities, including DPPH radical-scavenging capacity (IC50 = 161.8 ± 2.4 μg/mL), ABTS radical-scavenging capacity (IC50 = 13.9 ± 1.5 μg/mL) and reducing power. For anti-glycation activities, SE-EA showed the best results in the inhibition of AGEs, as well as inhibitory activities against α-glucosidase (IC50 = 362.3 ± 9.2 μg/mL) and α-amylase (IC50 = 119.0 ± 17.7 μg/mL). For anti-obesity activities, SE-EA indicated the highest suppression effect on pancreatic lipase (IC50 = 3.67 ± 0.52 mg/mL). Finally, for anti-hypertension activity, SE-EA also demonstrated the strongest inhibitory activity on ACE (IC50 = 626.6 ± 15.0 μg/mL). Close relationships were observed among the parameters of TPC, antioxidant activities, inhibitory activities on α-amylase, α-glucosidase, lipase and ACE (R > 0.9). Moderate correlations were found among the parameters of TFC, antioxidant activities, and suppression of dicarbonyl compounds formation (R = 0.5-0.9). Taken together these in vitro studies reveal the therapeutic potential of SE-EA extract in the prevention and treatment of metabolic disorders.
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Affiliation(s)
- Wei-Chin Hung
- Division of Cardiology, E-Da Hospital, Kaohsiung 82445, Taiwan.
| | - Xue-Hua Ling
- Graduate Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung 84001, Taiwan.
- Department of Obstetrics & Gynecology, E-Da Hospital/I-Shou University, Kaohsiung 82445, Taiwan.
| | - Chi-Chang Chang
- Department of Obstetrics & Gynecology, E-Da Hospital/I-Shou University, Kaohsiung 82445, Taiwan.
| | - Hsia-Fen Hsu
- Department of Nutrition, I-Shou University, Kaohsiung 82445, Taiwan.
| | - Shih-Wei Wang
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, E-Da Hospital/I-Shou University, Kaohsiung 82445, Taiwan.
| | - Yi-Chen Lee
- Department of Nutrition Therapy, E-Da Hospital, Kaohsiung 82445, Taiwan.
| | - Ci Luo
- Department of Nutrition, I-Shou University, Kaohsiung 82445, Taiwan.
| | - Yun-Tzu Lee
- Department of Nutrition, I-Shou University, Kaohsiung 82445, Taiwan.
| | - Jer-Yiing Houng
- Graduate Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung 84001, Taiwan.
- Department of Nutrition, I-Shou University, Kaohsiung 82445, Taiwan.
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Sun L, Bao C, Chang W, Zhuang Y. Preparation, characterisation, antioxidant and antiglycation activities of the novel polysaccharides from the pileus ofDictyophora rubrovolvata. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13262] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Liping Sun
- Research Center of Food Engineering; Yunnan Institute of Food Safety; Kunming University of Science and Technology; Kunming Yunnan 650224 China
| | - Changjun Bao
- Research Center of Food Engineering; Yunnan Institute of Food Safety; Kunming University of Science and Technology; Kunming Yunnan 650224 China
| | - Weidan Chang
- Research Center of Food Engineering; Yunnan Institute of Food Safety; Kunming University of Science and Technology; Kunming Yunnan 650224 China
| | - Yongliang Zhuang
- Research Center of Food Engineering; Yunnan Institute of Food Safety; Kunming University of Science and Technology; Kunming Yunnan 650224 China
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Preparation, characterization and antiglycation activities of the novel polysaccharides from Boletus snicus. Int J Biol Macromol 2016; 92:607-614. [DOI: 10.1016/j.ijbiomac.2016.07.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 06/07/2016] [Accepted: 07/03/2016] [Indexed: 11/17/2022]
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Milella L, Milazzo S, De Leo M, Vera Saltos MB, Faraone I, Tuccinardi T, Lapillo M, De Tommasi N, Braca A. α-Glucosidase and α-Amylase Inhibitors from Arcytophyllum thymifolium. JOURNAL OF NATURAL PRODUCTS 2016; 79:2104-2112. [PMID: 27509358 DOI: 10.1021/acs.jnatprod.6b00484] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Three new coumarins (1-3), a prenylated flavanone (4), and two iridoids (5 and 6), together with 17 known secondary metabolites, were isolated from the aerial parts of Arcytophyllum thymifolium. The structures of the new compounds were elucidated on the basis of their spectroscopic data. The potential hypoglycemic properties of the new and known compounds were evaluated by measuring their α-amylase and α-glucosidase inhibitory effects. The iridoid asperulosidic acid (15) and the flavonoid rhamnetin (13) showed the highest activities versus α-amylase (IC50 = 69.4 ± 3.1 and 73.9 ± 5.9 μM, respectively). In turn, the new eriodictyol derivative 4 exhibited the most potent effect as an α-glucosidase inhibitor, with an IC50 value of 28.1 ± 2.6 μM, and was more active than acarbose, used as a positive control. Modeling studies were also performed to suggest the interaction mode of compound 4 in the α-glucosidase enzyme active site.
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Affiliation(s)
- Luigi Milella
- Dipartimento di Scienze, Università degli Studi della Basilicata , Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Stella Milazzo
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
| | - Marinella De Leo
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
| | - Mariela Beatriz Vera Saltos
- Departamento de Ciencias de la Vida, Universidad de las Fuerzas Armadas, ESPE , Avenida General Rumiñahui s/n, Sangolqui, Ecuador
| | - Immacolata Faraone
- Dipartimento di Scienze, Università degli Studi della Basilicata , Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Tiziano Tuccinardi
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
- Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa , Via del Borghetto 80, 56124 Pisa, Italy
| | - Margherita Lapillo
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università degli Studi di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 6 and 33, 56126 Pisa, Italy
- Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa , Via del Borghetto 80, 56124 Pisa, Italy
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Zengin G, Nithiyanantham S, Locatelli M, Ceylan R, Uysal S, Aktumsek A, Selvi PK, Maskovic P. Screening of in vitro antioxidant and enzyme inhibitory activities of different extracts from two uninvestigated wild plants: Centranthus longiflorus subsp. longiflorus and Cerinthe minor subsp. auriculata. Eur J Integr Med 2016. [DOI: 10.1016/j.eujim.2015.12.004] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Hadrich F, Bouallagui Z, Junkyu H, Isoda H, Sayadi S. The α-Glucosidase and α-Amylase Enzyme Inhibitory of Hydroxytyrosol and Oleuropein. J Oleo Sci 2016; 64:835-43. [PMID: 26235001 DOI: 10.5650/jos.ess15026] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To date, numerous studies have reported on the antidiabetic properties of various plant extracts through inhibition of carbohydrate-hydrolysing enzymes. The objective of this research was to evaluate the inhibitory effect of the hydroxytyrosol and the oleuropein against α-amylase and α-glucosidase. The hydroxytyrosol was purified from olive leaves. The result shows that the hydroxytyrosol had the strongest α-glucosidase inhibitory effect with IC50 values of 150 μM with mild inhibition against α-amylase. The enzyme kinetic studies, using Lineweaver-Burk indicated that, in the presence of the hydroxytyrosol, the Michaelis-Menton constant (Km) remained constant but the maximal velocity (Vmax) decreased, revealing a non-competitive type of inhibition with inhibition constants; Ki for the formation of the inhibitor-enzyme complex and Kis for the formation of the inhibitor-enzyme-substrate complex of 104.3 and 150.1 μM, respectively. On the other hand, oleuropein showedan uncompetitive inhibition. The concentrations used in this work were below cytotoxic levels observed at 400 μM. However, at 600 μM, the hydroxytyrosol significantly decreased viability of the Caco-2 cells (p < 0.05) and in the case of the oleuropein, there's an increase in cell number compared to control (p < 0.05). These results suggest that the hydroxytyrosol and oleuropein are two potential effective α-glucosidase inhibitors for management of postprandial hyperglycemia.
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Affiliation(s)
- Fatma Hadrich
- Environmental Bioprocesses Laboratory, Laboratoire mixte international (LMI-ECOS-MED), Sfax Biotechnology Center
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In vitro inhibitory effects on α-glucosidase and α-amylase level and antioxidant potential of seeds of Phoenix dactylifera L. Asian Pac J Trop Biomed 2016. [DOI: 10.1016/j.apjtb.2015.11.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Tan X, Chua K, Ravishankar Ram M, Kuppusamy U. Monoterpenes: Novel insights into their biological effects and roles on glucose uptake and lipid metabolism in 3T3-L1 adipocytes. Food Chem 2016; 196:242-50. [DOI: 10.1016/j.foodchem.2015.09.042] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/03/2015] [Accepted: 09/10/2015] [Indexed: 01/09/2023]
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Screening of antidiabetic and antioxidant activities of medicinal plants. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2015; 13:297-305. [PMID: 26343100 DOI: 10.1016/s2095-4964(15)60193-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Diabetes is a common metabolic disorder characterized by abnormally increased plasma glucose levels. Postprandial hyperglycemia plays an essential role in development of type-2 diabetes. Inhibitors of carbohydrate-hydrolyzing enzymes (such as α-glucosidase and α-amylase) offer an effective strategy to regulate/prevent hyperglycemia by controlling starch breakdown. Natural α-amylase and α-glucosidase inhibitors, as well as antioxidants from plant-based sources, offer a source of dietary ingredients that affect human physiological function in order to treat diabetes. Several research studies have investigated the effectiveness of plant-based inhibitors of α-amylase and α-glucosidase, as well as their antioxidant activity. The aim of this review is to summarize the antidiabetic and antioxidant properties of several medicinal plants around the world. Half inhibitory concentration (IC50, for enzyme suppression) and half effective concentration (EC50, for antioxidant activity) values of less than 500 μg/mL were defined as the most potent plant-based inhibitors (in vitro) and are expected to provide interesting candidates for herbal treatment of diabetes, as foods, supplements, or refined drugs.
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Lin GM, Chen YH, Yen PL, Chang ST. Antihyperglycemic and antioxidant activities of twig extract from Cinnamomum osmophloeum. J Tradit Complement Med 2015; 6:281-8. [PMID: 27419094 PMCID: PMC4936769 DOI: 10.1016/j.jtcme.2015.08.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 07/07/2015] [Accepted: 08/03/2015] [Indexed: 01/13/2023] Open
Abstract
This is the first report concerning the α-glucosidase, α-amylase and protein tyrosine phosphatase 1B (PTP1B) inhibitory activities of cinnamon twig extracts. Comparing the antihyperglycemic activity of renewable plant parts, indigenous cinnamon (Cinnamomum osmophloeum; tǔ ròu guì) twig extracts (CoTE) showed better α-glucosidase and α-amylase activities than leaf, 2-cm branch and 5-cm branch extracts. Chemotype of C. osmophloeum has no influence on the antihyperglycemic activities and proanthocyanidin contents of CoTE. Among four soluble fractions obtained from CoTE by following bioactivity-guided fractionation procedure, the n-butanol soluble fraction (BSF) with abundant proanthocyanidins and condensed tannins, exhibited the best antihyperglycemic and PTP1B inhibitory activities. In addition, the BSF displayed the excellent DPPH free-radical scavenging and ferrous ion-chelating activities. The antihyperglycemic and antioxidant activities of all four soluble fractions from CoTE showed high correlation coefficient with their proanthocyanidin and condensed tannin contents. Furthermore, CoTE had no toxicity on 3T3-L1 preadiocytes. Results obtained demonstrated that CoTE has excellent antihyperglycemic, antioxidant and PTP1B inhibitory activities, and thus has great potential as a source for natural health products.
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Affiliation(s)
- Gong-Min Lin
- School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan
| | - Yu-Han Chen
- School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan
| | - Pei-Ling Yen
- School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan
| | - Shang-Tzen Chang
- School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan
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Raja S, Ramesh V, Thivaharan V. Antibacterial and anticoagulant activity of silver nanoparticles synthesised from a novel source–pods of Peltophorum pterocarpum. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2015.03.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Manosroi A, Akazawa H, Pattamapun K, Kitdamrongtham W, Akihisa T, Manosroi W, Manosroi J. Potent anti-proliferative effects against oral and cervical cancers of Thai medicinal plants selected from the Thai/Lanna medicinal plant recipe database "MANOSROI III". PHARMACEUTICAL BIOLOGY 2015; 53:1075-1081. [PMID: 25612774 DOI: 10.3109/13880209.2014.959613] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Thai/Lanna medicinal plant recipes have been used for the treatment of several diseases including oral and cervical cancers. OBJECTIVE To investigate anti-proliferative activity on human cervical (HeLa) and oral (KB) cancer cell lines of medicinal plants selected from Thai/Lanna medicinal plant recipe database "MANOSROI III". MATERIALS AND METHODS Twenty-three methanolic plant crude extracts were tested for phytochemicals and anti-proliferative activity on HeLa and KB cell lines for 24 h by the sulforhodamine B (SRB) assay at the doses of 1 × 10(1)-1 × 10(-6 )mg/ml. The nine extracts with the concentrations giving 50% growth inhibition (GI50) lower than 100 µg/ml were further semi-purified by liquid/liquid partition in order to evaluate and enhance the anti-proliferative potency. RESULTS All extracts contained steroids/triterpenoids, but not xanthones. The methanolic extracts of Gloriosa superba L. (Colchinaceae) root and Albizia chinensis (Osbeck) Merr. (Leguminosae-Mimosoideae) wood gave the highest anti-proliferative activity on HeLa and KB cell lines with the GI50 values of 0.91 (6.0- and 0.31-fold of cisplatin and doxorubicin) and 0.16 µg/ml (28.78- and 82.29-fold of cisplatin and doxorubicin), respectively. Hexane and methanol-water fractions of G. superba exhibited the highest anti-proliferative activity on HeLa and KB cell lines with the GI50 values of 0.15 (37- and 1.9-fold of cisplatin and doxorubicin) and 0.058 µg/ml (77.45- and 221.46-fold of cisplatin and doxorubicin), respectively. DISCUSSION AND CONCLUSION This study has demonstrated the potential of plants selected from MANOSROI III database especially G. superba and A. chinensis for further development as anti-oral and cervical cancer agents.
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Affiliation(s)
- Aranya Manosroi
- Faculty of Pharmacy, Chiang Mai University , Chiang Mai , Thailand
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Chinchansure AA, Korwar AM, Kulkarni MJ, Joshi SP. Recent development of plant products with anti-glycation activity: a review. RSC Adv 2015. [DOI: 10.1039/c4ra14211j] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review article summarizes the plant natural products that inhibit glycation at different stages leading to the AGEs formation.
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Affiliation(s)
| | - Arvind M. Korwar
- Division of Biochemical Sciences
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Mahesh J. Kulkarni
- Division of Biochemical Sciences
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Swati P. Joshi
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
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Antidiabetic Activity of Durian (Durio Zibethinus Murr.) and Rambutan (Nephelium Lappaceum L.) Fruit Peels in Alloxan Diabetic Rats. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.profoo.2015.01.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Arumugam B, Manaharan T, Heng CK, Kuppusamy UR, Palanisamy UD. Antioxidant and antiglycemic potentials of a standardized extract of Syzygium malaccense. Lebensm Wiss Technol 2014. [DOI: 10.1016/j.lwt.2014.06.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Inhibitory effect of eleven herbal extracts on advanced glycation end-products formation and aldose reductase activity. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.04.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Zhang J, Nishimoto Y, Tokuda H, Suzuki N, Yasukawa K, Kitdamrongtham W, Akazawa H, Manosroi A, Manosroi J, Akihisa T. Cancer chemopreventive effect of bergenin from Peltophorum pterocarpum wood. Chem Biodivers 2014; 10:1866-75. [PMID: 24130029 DOI: 10.1002/cbdv.201300182] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Indexed: 11/12/2022]
Abstract
The aqueous extract of Peltophorum pterocarpum (Fabaceae) wood exhibited potent inhibitory effects against EpsteinBarr virus early antigen (EBV-EA) activation induced with 12-O-tetradecanoylphorbol-13-acetate (TPA) in Raji cells and against melanogenesis in α-melanocyte-stimulating hormone (α-MSH)-stimulated B16 melanoma cells, as well as potent 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging activity. Two phenolic acid derivatives, bergenin (1) and gallic acid (2), were isolated from the ethyl acetate (AcOEt)-soluble fraction obtained from the extract. Compound 1 exhibited potent inhibitory effect against EBV-EA activation and against skin tumor promotion in an in vivo two-stage mouse skin carcinogenesis test based on 7,12-dimethylbenz[a]anthracene (DMBA) as initiator, and with TPA as promoter. Both compounds 1 and 2 exhibited melanogenesis-inhibitory activities in α-MSH-stimulated B16 melanoma cells, and, in addition, compound 2 showed strong DPPH radical-scavenging activity.
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Affiliation(s)
- Jie Zhang
- College of Science and Technology, Nihon University, 1-8-14 Kanda Surugadai, Chiyoda-ku, Tokyo 101-8308, Japan
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Tyl CE, Bunzel M. Activity-Guided Fractionation to Identify Blue Wheat (UC66049Triticum aestivumL.) Constituents Capable of Inhibiting In Vitro Starch Digestion. Cereal Chem 2014. [DOI: 10.1094/cchem-07-13-0138-r] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Catrin E. Tyl
- Department of Food Science and Nutrition, University of Minnesota, 1334 Eckles Avenue, St. Paul, MN 55108, U.S.A
| | - Mirko Bunzel
- Department of Food Chemistry and Phytochemistry, Karlsruhe Institute of Technology (KIT), Adenauerring 20A, 76131 Karlsruhe, Germany
- Corresponding author. Phone: +49-721-608-42936. E-mail:
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Ndlovu G, Fouche G, Tselanyane M, Cordier W, Steenkamp V. In vitro determination of the anti-aging potential of four southern African medicinal plants. Altern Ther Health Med 2013; 13:304. [PMID: 24188320 PMCID: PMC4228251 DOI: 10.1186/1472-6882-13-304] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 10/28/2013] [Indexed: 11/29/2022]
Abstract
Background Aging is an inevitable process for all living organisms. During this process reactive oxygen species generation is increased which leads to the activation of hyaluronidase, collagenase and elastase, which can further contribute to skin aging. Four southern African medicinal plants; Clerodendrum glabrum, Schotia brachypetala, Psychotria capensis and Peltophorum africanum, were investigated to assess their anti-aging properties. Methods Anti-elastase, anti-collagenase and anti-hyaluronidase activities of twenty-eight samples, consisting of methanol and ethyl acetate extracts of the four plants, were determined using spectrophotometric methods. Radical scavenging activity was determined by the ability of the plant extracts to scavenge the ABTS•+ radical. Results The majority of the samples in the anti-elastase assay and nine in the anti-collagenase assay showed more than 80% inhibition. The ethyl acetate extract of S. brachypetala bark and leaves of P. capensis inhibited elastase activity by more than 90%. The methanol extract of S. brachypetala bark contained the highest anti-hyaluronidase activity (75.13 ± 7.49%) whilst the ethyl acetate extract of P. africanum bark exhibited the highest antioxidant activity (IC50: 1.99 ± 0.23 μg/ml). Conclusion The free radical scavenging activity and enzyme inhibitory activity of the plant extracts investigated suggests that they can help restore skin elasticity and thereby slow the wrinkling process. P. africanum was the plant with the most promising activity and will be subjected to further testing and isolation of the active compound/s.
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