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Zhao YH, Song XY, Sun XX, He RS, Yang WZ, Jiang MM, He J, Zhang LH, Wu HH. Constituents from Dendrobium aphyllum: Bibenzyls, furfurals, phenanthrenes, and phenylpropanoids and their antioxidant and anti-inflammatory potentials. Fitoterapia 2024; 177:106122. [PMID: 38992474 DOI: 10.1016/j.fitote.2024.106122] [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: 04/27/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
Chemical investigation on the aqueous extract of Dendrobium aphyllum led to the isolation of thirty-one constituents with structures identified by analysis of the extensive spectroscopic data (1D/2D NMR, MS, UV, and ECD), including previously undescribed two bibenzyls, one furfural, and one phenolic acid, namely trigonopol D (1), trigonopol C (2), dendrofunan A (10), and 6-(4-hydroxy-3-methoxyphenyl)-3,6-dioxohexyl acetate (30), respectively, as well as twenty-seven known ones. Among them, there were one new natural product (11), seven compounds (6-7, 9, 12, 20, 28, 31) described from the genus Dendrobium for the first time, and fifteen compounds (8, 13-17, 19, 21-27, 29) isolated from D. aphyllum for the first time. Further, the antioxidant and anti-inflammatory potentials of fifteen compounds (4-5, 8, 11-12, 14-19, 22, 24, 26, and 29) with significant scavenging capacities against DPPH and hydroxyl radicals, and virtual docking activities inhibiting COX-2 and 5-LOX, respectively. Our study may draw the attention of medicinal plant taxonomists and supply potential quality markers for discrimination of D. aphyllum from other species in Dendrobium genus.
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Affiliation(s)
- Yu-Heng Zhao
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China
| | - Xiao-Yan Song
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China
| | - Xiao-Xue Sun
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China
| | - Ru-Shang He
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China
| | - Wen-Zhi Yang
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China
| | - Miao-Miao Jiang
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China
| | - Jun He
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China
| | - Li-Hua Zhang
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China.
| | - Hong-Hua Wu
- State Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China; Tianjin Key Laboratory of Therapeutic Substance of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, Tianjin 301617, People's Republic of China.
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Wang Y, Yu D, Zhu S, Du X, Wang X. The genus Dioscorea L. (Dioscoreaceae), a review of traditional uses, phytochemistry, pharmacology, and toxicity. JOURNAL OF ETHNOPHARMACOLOGY 2024; 329:118069. [PMID: 38552992 DOI: 10.1016/j.jep.2024.118069] [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: 01/10/2024] [Revised: 02/29/2024] [Accepted: 03/16/2024] [Indexed: 04/11/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Dioscorea, a member of the Dioscoreaceae family, comprises approximately 600 species and is widely distributed across temperate and tropical regions such as Asia, South Africa, and North America. The traditional medicinal uses of Dioscorea have been documented in Asian and African pharmacological systems. In Asia, this genus is traditionally used to treat respiratory illnesses, rheumatism, diabetes, diarrhea, dysentery, and other conditions. In Africa, this genus has been used to treat human immunodeficiency virus and ring worms. However, the traditional medicinal practices in North America rarely mention the use of this genus. AIM OF THE STUDY The aim of this review is to comprehensively review the genus Dioscorea, focusing on its traditional uses, phytochemical constituents, pharmacological activities, and potential toxicities. The research also aims to highlight the valuable bioactive compounds within Dioscorea and emphasize the need for further investigations into acute and chronic toxicity, activity mechanisms, molecular markers, and other relevant factors to contribute to the discovery of novel pharmaceuticals. MATERIALS AND METHODS A search for available information on Dioscorea was conducted using scientific databases, including PubMed, ISI-WOS, Scopus, and Google Scholar, as well as recent academic publications from reputable publishers and other literature sources. The search was not limited by language and spanned the literature published between 1950 and 2022. RESULTS This article provides a comprehensive review of the Dioscorea genus, focusing on its traditional uses, phytochemical constituents, pharmacological activities, and potential toxicities. Extensive research has been conducted on this genus, resulting in the isolation and examination of over 1000 compounds, including steroids, terpenoids, and flavonoids, to determine their biological activities. These activities include anti-tumor, anti-inflammatory, immunomodulatory, neuroprotective, hypoglycemic, and hypolipidemic effects. However, some studies have indicated the potential toxicity of high doses of Dioscorea, highlighting the need for further investigations to assess the safety of this genus. Additionally, this review explores potential avenues for future research and discusses the challenges associated with a comprehensive understanding of the Dioscorea genus. CONCLUSIONS Based on the existing literature, it can be concluded that Dioscorea is a valuable source of bioactive compounds that have the potential to treat various disorders. Future research should prioritize the investigation of acute and chronic toxicity, activity mechanisms, molecular markers, and other relevant factors. This review provides a comprehensive analysis of the Dioscorea genus, emphasizing its potential to enable a deeper exploration of the biological activity mechanisms of these plants and contribute to the discovery of novel pharmaceuticals.
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Affiliation(s)
- Yufei Wang
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Dan Yu
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Shaojie Zhu
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Xiaowei Du
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China.
| | - Xijun Wang
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China.
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Barron D, Ratinaud Y, Rambousek S, Brinon B, Naranjo Pinta M, Sanders MJ, Sakamoto K, Ciclet O. Unambiguous Characterization of Commercial Natural (Dihydro)phenanthrene Compounds Is Vital in the Discovery of AMPK Activators. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14993-15004. [PMID: 38896806 DOI: 10.1021/acs.jafc.4c01616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
These days, easy access to commercially available (poly)phenolic compounds has expanded the scope of potential research beyond the field of chemistry, particularly in the area of their bioactivity. However, the quality of these compounds is often overlooked or not even considered. This issue is illustrated in this study through the example of (dihydro)phenanthrenes, a group of natural products present in yams, as AMP-activated protein kinase (AMPK) activators. A study conducted in our group on a series of compounds, fully characterized using a combination of chemical synthesis, NMR and MS techniques, provided evidence that the conclusions of a previous study were erroneous, likely due to the use of a misidentified commercial compound by its supplier. Furthermore, we demonstrated that additional representatives of the (dihydro)phenanthrene phytochemical classes were able to directly activate AMPK, avoiding the risk of misinterpretation of results based on analysis of a single compound alone.
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Affiliation(s)
- Denis Barron
- Nestlé Research, Société des Produits Nestlé S.A., 1015 Lausanne, Switzerland
| | - Yann Ratinaud
- Nestlé Research, Société des Produits Nestlé S.A., 1015 Lausanne, Switzerland
| | - Simona Rambousek
- Nestlé Research, Société des Produits Nestlé S.A., 1015 Lausanne, Switzerland
| | - Benjamin Brinon
- Nestlé Research, Société des Produits Nestlé S.A., 1015 Lausanne, Switzerland
| | | | - Matthew J Sanders
- Nestlé Research, Société des Produits Nestlé S.A., 1015 Lausanne, Switzerland
| | - Kei Sakamoto
- Nestlé Research, Société des Produits Nestlé S.A., 1015 Lausanne, Switzerland
| | - Olivier Ciclet
- Nestlé Research, Société des Produits Nestlé S.A., 1015 Lausanne, Switzerland
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Kalaskar M, Redasani V, Ayyanar M, Ghante M, Firke S, Agrawal K, Ghawate V, Surana S, Alarifi S, Chikhale R, Gurav S. Isolation and Characterization of Anti-Inflammatory Compounds from Ficus microcarpa L.f. Stem Bark. PLANTS (BASEL, SWITZERLAND) 2023; 12:3248. [PMID: 37765413 PMCID: PMC10538222 DOI: 10.3390/plants12183248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023]
Abstract
The anti-inflammatory effect of the ethyl acetate extract of F. microcarpa bark (EAFMB) was investigated in acute and chronic (21 days) inflammation induced in Wistar albino rats. EAFMB (200 mg/kg b.w.) exhibited comparable anti-inflammatory effects to the reference drug, with a reduction of 59.48% at 4 h in acute inflammation and 83.96% on day 21 in chronic inflammation. Bioassay-guided fractionation using DPPH radical scavenging activity led to isolating and identifying three compounds from EAFMB: oleanolic acid, catechin, and p-hydroxycinnamic acid. All these compounds demonstrated the concentration-dependent inhibition of COX enzymes and the protection of egg albumin from heat-induced denaturation. Catechin exhibited the highest COX inhibition (COX-1 and COX-2 IC50 = 9.02 and 50.38 μM, respectively) and anti-denaturation effect (IC50 = 27.13 μg/mL) compared to oleanolic acid and p-hydroxycinnamic acid. These isolated compounds are likely responsible for the anti-inflammatory activities of F. microcarpa bark.
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Affiliation(s)
- Mohan Kalaskar
- Department of Pharmacognosy, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425 405, MS, India; (M.K.)
| | - Vivek Redasani
- Department of Pharmaceutical Chemistry, YSPM’s Yashoda Technical Campus, Faculty of Pharmacy, Satara 415 001, MS, India;
| | - Muniappan Ayyanar
- Department of Botany, A. V. V. M. Sri Pushpam College, Bharathidasan University, Poondi, Thanjavur 613 503, TN, India;
| | - Mahavir Ghante
- Department of Pharmaceutical Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur 495 001, CG, India;
| | - Sandip Firke
- Department of Pharmacognosy, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425 405, MS, India; (M.K.)
| | - Kapil Agrawal
- Department of Pharmacognosy, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425 405, MS, India; (M.K.)
| | - Vilas Ghawate
- Department of Pharmacognosy, MES College of Pharmacy, Sonai 414 105, MS, India
| | - Sanjay Surana
- Department of Pharmacognosy, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425 405, MS, India; (M.K.)
| | - Saud Alarifi
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Rupesh Chikhale
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK;
| | - Shailendra Gurav
- Department of Pharmacognosy, Goa College of Pharmacy, Goa University, Panaji 403 001, GA, India
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Sapkal PR, Tatiya AU, Firke SD, Redasani VK, Gurav SS, Ayyanar M, Jamkhande PG, Surana SJ, Mutha RE, Kalaskar MG. Phytochemical profile, antioxidant, cytotoxic and anti-inflammatory activities of stem bark extract and fractions of Ailanthus excelsa Roxb.: In vitro, in vivo and in silico approaches. Heliyon 2023; 9:e15952. [PMID: 37187902 PMCID: PMC10176067 DOI: 10.1016/j.heliyon.2023.e15952] [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: 11/16/2022] [Revised: 04/20/2023] [Accepted: 04/27/2023] [Indexed: 05/17/2023] Open
Abstract
This study aimed to assess the phytochemical composition, in vitro antioxidant, cytotoxicity, and in vivo anti-inflammatory activities of the methanolic extract of Ailanthus excelsa (Simaroubaceae) stem bark and its fractions. Quantitative phytochemical analysis revealed that methanolic extract and all fractions contained a high level of flavonoids (20.40-22.91 mg/g QE), phenolics (1.72-7.41 mg/g GAE), saponins (33.28-51.87 mg/g DE), and alkaloids (0.21-0.33 mg/g AE). The antioxidant potential was evaluated in vitro using a range of assays, i.e., DPPH•, ABTS radical scavenging ability, and total antioxidant capacity. The chloroform and ethyl acetate fractions showed stronger antioxidant activity than the methanol extract. In vitro cytotoxic activity was investigated in three human tumor cell lines (A-549, MCF7 and HepG2) using the SRB assay. In addition, the in vivo anti-inflammatory effect was assessed by carrageenan-induced paw edema in rats. The chloroform fraction showed a more pronounced effect by effectively controlling the growth with the lowest GI50 and TGI concentrations. The human lung cancer cell line (A-549) was found to be more sensitive to the chloroform fraction. Furthermore, the chloroform fraction exhibited significant anti-inflammatory activity at a dose of 200 mg/kg in the latter phase of inflammation. Besides, methanol extract and ethyl acetate fraction revealed a significant cytotoxic and anti-inflammatory effects. The chloroform fraction of stem bark showed a strong anti-inflammatory effect in experimental animals and significant COX-2 inhibitory potential in the in vitro experiments. GC-MS analysis of chloroform fraction identified the phytochemicals like caftaric acid, 3,4-dihydroxy phenylacetic acid, arachidonic acid, cinnamic acid, 3-hydroxyphenylvaleric acid, caffeic acid, hexadeconoic acid, and oleanolic acid. The in-silico results suggest that identified compounds have better affinity towards the selected targets, viz. the BAX protein (PDB ID: 1F16), p53-binding protein Mdm-2 (PDB ID: 1YCR), and topoisomerase II (PDB ID: 1QZR). Amongst all, caftaric acid exhibited the best binding affinity for all three targets. Thus, it can be concluded that caftaric acid in combination with other phenolic compounds, might be responsible for the studied activity. Additional in vivo and in vitro studies are required to establish their exact molecular mechanisms and consider them as lead molecules in developing of valuable drugs for treating oxidative stress-induced disorders, cancers, and inflammations.
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Affiliation(s)
- Priyanka R. Sapkal
- R. C. Patel Institute of Pharmaceutical Education & Research, Shirpur, Maharashtra 425405, India
| | - Anilkumar U. Tatiya
- R. C. Patel Institute of Pharmaceutical Education & Research, Shirpur, Maharashtra 425405, India
| | - Sandip D. Firke
- R. C. Patel Institute of Pharmaceutical Education & Research, Shirpur, Maharashtra 425405, India
| | - Vivek K. Redasani
- Yashoda Technical Campus, Faculty of Pharmacy, Satara, Maharashtra 412 802, India
| | - Shailendra S. Gurav
- Department of Pharmacognosy, Goa College of Pharmacy, Goa University, Panaji, Goa 403 001, India
| | - Muniappan Ayyanar
- Department of Botany, A.V.V.M. Sri Pushpam College (Affiliated to Bharathidasan University), Poondi, Thanjavur, Tamil Nadu 613 503, India
| | - Prasad G. Jamkhande
- Centre for Research in Pharmaceutical Sciences, Sharda Bhavan Education Society's Nanded Pharmacy College, Nanded, Maharashtra, 431605, India
| | - Sanjay J. Surana
- R. C. Patel Institute of Pharmaceutical Education & Research, Shirpur, Maharashtra 425405, India
| | - Rakesh E. Mutha
- H. R. Patel Institute of Pharmaceutical Education & Research, Shirpur, Maharashtra 425405, India
| | - Mohan G. Kalaskar
- R. C. Patel Institute of Pharmaceutical Education & Research, Shirpur, Maharashtra 425405, India
- Corresponding author.
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Murphy KE, Thacher MK, Young EC, Mojik V, Wolfe AL. Total Synthesis and Antibacterial Evaluation of Empetroxepins A and B and related analogs. Bioorg Med Chem Lett 2022; 75:128955. [PMID: 36038118 DOI: 10.1016/j.bmcl.2022.128955] [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: 07/13/2022] [Revised: 08/05/2022] [Accepted: 08/22/2022] [Indexed: 11/02/2022]
Abstract
Empetroxepins A and B, which are 10,11-dihydrodibenz[b,f]oxepins produced by the Black Crowberry (Empetrum nigrum), displayed weak anti-tubercular activity upon isolation, but have not been explored for antibiotic activity despite their molecular similarity to other phenolic antibacterial natural products. Herein we detail the first total synthesis of Empetroxepins A and B via a selective demethylation strategy and antibacterial structure activity relationship (SAR) study of the natural products and related analogs. Empetroxepin A was found to be weakly active against susceptible strains of Staphylococcus aureus (SA) and Bacillus subtilis (BS) with MICs = 256 μg/mL against both, whereas Empetroxepin B was found to be weakly active against only BS (MIC = 256 μg/mL). Neither natural product was active against Escherichia coli (EC). Antibiotic activity was improved through derivatization of the 10,11-dihydrodibenz[b,f]oxepin core with the best compound of the SAR series, 9-chloro-10,11-dihydrodibenzo[b,f]oxepine-2,3,4-triol, having MICs of 8 μg/mL, 16 μg/mL, and 256 μg/mL against SA, BS, and EC respectively.
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Affiliation(s)
- Kyle E Murphy
- Department of Chemistry and Biochemistry, University of North Carolina Asheville, One University Heights, Asheville, North Carolina, 28804, United States
| | - Marcia K Thacher
- Department of Chemistry and Biochemistry, University of North Carolina Asheville, One University Heights, Asheville, North Carolina, 28804, United States
| | - Erin C Young
- Department of Chemistry and Biochemistry, University of North Carolina Asheville, One University Heights, Asheville, North Carolina, 28804, United States
| | - Veronika Mojik
- Department of Chemistry and Biochemistry, University of North Carolina Asheville, One University Heights, Asheville, North Carolina, 28804, United States
| | - Amanda L Wolfe
- Department of Chemistry and Biochemistry, University of North Carolina Asheville, One University Heights, Asheville, North Carolina, 28804, United States.
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Adomėnienė A, Venskutonis PR. Dioscorea spp.: Comprehensive Review of Antioxidant Properties and Their Relation to Phytochemicals and Health Benefits. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082530. [PMID: 35458730 PMCID: PMC9026138 DOI: 10.3390/molecules27082530] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/25/2022] [Accepted: 04/08/2022] [Indexed: 12/23/2022]
Abstract
Dioscorea, consisting of over 600 species, is the most important genus in the Dioscoreaceae family; however, the practically used plants, which are commonly called yam, are restricted to a remarkably smaller number of species. Numerous studies have reported the high nutritional value of yam, particularly as an alternative source of starch and some important micronutrients. Several Dioscorea species are widely used for various medicinal purposes as well. In many studies, the bioactivities and health benefits of Dioscorea extracts and other preparations have been related to the presence of phytochemicals, which possess antioxidant properties; they are related mainly to radical-scavenging capacity in chemical assays and positive effects on the endogenous antioxidant system in cell-based and in vivo assays. Considering the increasing number of publications on this topic and the absence of comprehensive and focused review papers on antioxidant potential, this article summarizes the results of studies on the antioxidant properties of Dioscorea spp. and their relation to phytochemicals and health benefits. A comprehensive survey of the published articles has revealed that the majority of studies have been performed with plant tubers (rhizomes, roots), while reports on leaves are rather scarce. In general, leaf extracts demonstrated stronger antioxidant potential than tuber preparations. This may be related to the differences in phytochemical composition: saponins, phenanthrenes and, for some pigment-rich species (purple yams), anthocyanins are important constituents in tubers, while phenolic acids and flavonoids are characteristic phytochemicals in the leaves. The review may assist in explaining ethnopharmacological knowledge on the health benefits of Dioscorea plants and their preparations; moreover, it may foster further studies of poorly investigated species, as well as their wider application in developing new functional foods and nutraceuticals.
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Kaur B, Singh P. Inflammation: Biochemistry, Cellular Targets, Anti-inflammatory Agents and Challenges with Special Emphasis on Cyclooxygenase-2. Bioorg Chem 2022; 121:105663. [DOI: 10.1016/j.bioorg.2022.105663] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/17/2022] [Accepted: 02/05/2022] [Indexed: 12/13/2022]
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Lan Z, Zhang Y, Sun Y, Wang L, Huang Y, Cao H, Wang S, Meng J. Identifying of Anti-Thrombin Active Components From Curcumae Rhizoma by Affinity-Ultrafiltration Coupled With UPLC-Q-Exactive Orbitrap/MS. Front Pharmacol 2021; 12:769021. [PMID: 34955839 PMCID: PMC8703108 DOI: 10.3389/fphar.2021.769021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/11/2021] [Indexed: 01/14/2023] Open
Abstract
Recent studies concerning products that originate from natural plants have sought to clarify active ingredients, which both explains the mechanisms of the function and aids in quality control during production. As a traditional functional plant, Curcumae Rhizoma (CR) has been proven to be effective in promoting blood circulation and removing blood stasis. However, the components that play a role in its huge compound library are still unclear. The present study aimed to develop a high-throughput screening method to identify thrombin inhibitors in CR and validate them by in vitro and in vivo experiments. The effect of CR on thrombin in HUVECs cells was determined by ELISA, then an affinity-ultrafiltration-UPLC-Q-Exactive Orbitrap/MS approach was applied. Agatroban and adenosine were used as positive and negative drugs respectively to verify the reliability of the established method. The in vitro activity of the compounds was determined by specific substrate S-2238. The in vivo effect of the active ingredients was determined using zebrafish. Molecular docking was used to understand the internal interactions between compounds and enzymes. ELISA results showed that CR had an inhibitory effect on thrombin. The screening method established in this paper is reliable, by which a total of 15 active compounds were successfully identified. This study is the first to report that C7, 8, and 11 have in vitro thrombin-inhibitory activity and significantly inhibit thrombosis in zebrafish models at a safe dose. Molecular docking studies were employed to analyze the possible active binding sites, with the results suggesting that compound 16 is likely a better thrombin inhibitor compared with the other compounds. Based on the affinity-ultrafiltration-UPLC-Q-Exactive Orbitrap/MS approach, a precisely targeted therapy method using bio-active compounds from CR might be successfully established, which also provides a valuable reference for targeted therapy, mechanism exploration, and the quality control of traditional herbal medicine.
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Affiliation(s)
- Zhenwei Lan
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, State Administration of Traditional Chinese Medicine (TCM), Engineering Technology Research Center for Chinese Materia Medica Quality of Universities in Guangdong Province, Guangzhou, China
| | - Ying Zhang
- College of Pharmacy, Jinan University, Research Center for Traditional Chinese Medicine of Lingnan, Guangdong Provincial Key Laboratory of Traditional Chinese Medicine Informatization, Guangzhou, China
| | - Yue Sun
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, State Administration of Traditional Chinese Medicine (TCM), Engineering Technology Research Center for Chinese Materia Medica Quality of Universities in Guangdong Province, Guangzhou, China
| | - Lvhong Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, State Administration of Traditional Chinese Medicine (TCM), Engineering Technology Research Center for Chinese Materia Medica Quality of Universities in Guangdong Province, Guangzhou, China
| | - Yuting Huang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, State Administration of Traditional Chinese Medicine (TCM), Engineering Technology Research Center for Chinese Materia Medica Quality of Universities in Guangdong Province, Guangzhou, China
| | - Hui Cao
- College of Pharmacy, Jinan University, Research Center for Traditional Chinese Medicine of Lingnan, Guangdong Provincial Key Laboratory of Traditional Chinese Medicine Informatization, Guangzhou, China
| | - Shumei Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, State Administration of Traditional Chinese Medicine (TCM), Engineering Technology Research Center for Chinese Materia Medica Quality of Universities in Guangdong Province, Guangzhou, China
| | - Jiang Meng
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, State Administration of Traditional Chinese Medicine (TCM), Engineering Technology Research Center for Chinese Materia Medica Quality of Universities in Guangdong Province, Guangzhou, China
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Badalamenti N, Russi S, Bruno M, Maresca V, Vaglica A, Ilardi V, Zanfardino A, Di Napoli M, Varcamonti M, Cianciullo P, Calice G, Laurino S, Falco G, Basile A. Dihydrophenanthrenes from a Sicilian Accession of Himantoglossum robertianum (Loisel.) P. Delforge Showed Antioxidant, Antimicrobial, and Antiproliferative Activities. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122776. [PMID: 34961247 PMCID: PMC8708532 DOI: 10.3390/plants10122776] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/08/2021] [Accepted: 12/13/2021] [Indexed: 05/02/2023]
Abstract
The peculiar aspect that emerges from the study of Orchidaceae is the presence of various molecules, which are particularly interesting for pharmaceutical chemistry due to their wide range of biological resources. The aim of our study was to investigate the properties of two dihydrophenanthrenes, isolated, for the first time, from Himantoglossum robertianum (Loisel.) P. Delforge (Orchidaceae) bulbs and roots. Chemical and spectroscopic study of the bulbs and roots of Himantoglossumrobertianum (Loisel.) P. Delforge resulted in the isolation of two known dihydrophenanthrenes-loroglossol and hircinol-never isolated from this plant species. The structures were evaluated based on 1H-NMR, 13C-NMR, and two-dimensional spectra, and by comparison with the literature. These two molecules have been tested for their possible antioxidant, antimicrobial, antiproliferative, and proapoptotic activities. In particular, it has been shown that these molecules cause an increase in the activity of superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST) in polymorphonuclear leukocytes (PMN); show antimicrobial activity against Escherichia coli and Staphylococcus aureus, and have anti-proliferative effects on gastric cancer cell lines, inducing apoptosis effects. Therefore, these two molecules could be considered promising candidates for pharmaceutical and nutraceutical preparations.
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Affiliation(s)
- Natale Badalamenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy; (M.B.); (A.V.); (V.I.)
- Correspondence: (N.B.); (V.M.); (S.L.); Tel.: +39-081-2538508 (V.M.)
| | - Sabino Russi
- IRCCS CROB—Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy; (S.R.); (G.C.)
| | - Maurizio Bruno
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy; (M.B.); (A.V.); (V.I.)
- Centro Interdipartimentale di Ricerca “Riutilizzo bio-based degli scarti da matrici agroalimentari” (RIVIVE), Università di Palermo, 90128 Palermo, Italy
| | - Viviana Maresca
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
- Correspondence: (N.B.); (V.M.); (S.L.); Tel.: +39-081-2538508 (V.M.)
| | - Alessandro Vaglica
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy; (M.B.); (A.V.); (V.I.)
| | - Vincenzo Ilardi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy; (M.B.); (A.V.); (V.I.)
| | - Anna Zanfardino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Michela Di Napoli
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Piergiorgio Cianciullo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Giovanni Calice
- IRCCS CROB—Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy; (S.R.); (G.C.)
| | - Simona Laurino
- IRCCS CROB—Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy; (S.R.); (G.C.)
- Correspondence: (N.B.); (V.M.); (S.L.); Tel.: +39-081-2538508 (V.M.)
| | - Geppino Falco
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
| | - Adriana Basile
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.Z.); (M.D.N.); (M.V.); (P.C.); (G.F.); (A.B.)
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Srour AM, Panda SS, Mostafa A, Fayad W, El-Manawaty MA, A. F. Soliman A, Moatasim Y, El Taweel A, Abdelhameed MF, Bekheit MS, Ali MA, Girgis AS. Synthesis of aspirin-curcumin mimic conjugates of potential antitumor and anti-SARS-CoV-2 properties. Bioorg Chem 2021; 117:105466. [PMID: 34775204 PMCID: PMC8566089 DOI: 10.1016/j.bioorg.2021.105466] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 10/31/2021] [Indexed: 12/16/2022]
Abstract
Series of piperidone-salicylate conjugates were synthesized through the reaction of 3E,5E-bis(arylidene)-4-piperidones with the appropriate acid chloride of acetylsalicylate in the presence of triethylamine. All the synthesized conjugates reveal antiproliferative properties against A431 (squamous skin) cancer cell line with potency higher than that of 5-fluorouracil. Many of the synthesized agents also exhibit promising antiproliferative properties against HCT116 (colon) cancer cell line, of which 5o and 5c are the most effective with 12.9, 9.8 folds potency compared with Sunitinib. Promising activity is also shown against MCF7 (breast) cancer cell line with 1.19, 1.12 folds relative to 5-fluorouracil. PI-flow cytometry of compound 5c supports the arrest of cell cycle at G1-phase. However, compound 5o and Sunitinib arrest the cell cycle at S-phase. The synthesized conjugates can be considered as multi-targeted tyrosine kinase inhibitors due to the promising properties against VEGFR-2 and EGFR in MCF7 and HCT116. CDOCKER studies support the EGFR inhibitory properties. Compounds 5p and 5i possessing thienylidene heterocycle are anti-SARS-CoV-2 with high therapeutic indices. Many of the synthesized agents show enhanced COX-1/2 properties than aspirin with better selectivity index towards COX-2 relative to COX-1. The possible applicability of the potent candidates discovered as antitumor and anti-SARS-CoV-2 is supported by the safe profile against normal (non-cancer, RPE1 and VERO-E6) cells.
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Affiliation(s)
- Aladdin M. Srour
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Giza 12622, Egypt
| | - Siva S. Panda
- Department of Chemistry & Physics, Augusta University, Augusta, GA 30912, US
| | - Ahmed Mostafa
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12622, Egypt
| | - Walid Fayad
- Drug Bioassay-Cell Culture Laboratory, Pharmacognosy Department, National Research Centre, Dokki, Giza 12622, Egypt
| | - May A. El-Manawaty
- Drug Bioassay-Cell Culture Laboratory, Pharmacognosy Department, National Research Centre, Dokki, Giza 12622, Egypt
| | - Ahmed A. F. Soliman
- Drug Bioassay-Cell Culture Laboratory, Pharmacognosy Department, National Research Centre, Dokki, Giza 12622, Egypt
| | - Yassmin Moatasim
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12622, Egypt
| | - Ahmed El Taweel
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12622, Egypt
| | | | - Mohamed S. Bekheit
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt
| | - Mohamed A. Ali
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12622, Egypt
| | - Adel S. Girgis
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt,Corresponding author
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Ambati GG, Jachak SM. Natural Product Inhibitors of Cyclooxygenase (COX) Enzyme: A Review on Current Status and Future Perspectives. Curr Med Chem 2021; 28:1877-1905. [PMID: 32484764 DOI: 10.2174/0929867327666200602131100] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 04/28/2020] [Accepted: 05/06/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Several clinically used COX-1 and COX-2 inhibitor drugs were reported to possess severe side effects like GI ulcers and cardiovascular disturbances, respectively. Natural products being structurally diverse always attracted the attention of chemists/ medicinal chemists as a potential source of lead molecules in the drug discovery process. COX-2 inhibitory natural products also possess potential cancer chemopreventive property against various cancers including that of colon, breast and prostate. METHODS Various in vitro, in vivo and in silico standardized methods were used to evaluate COX inhibition property of different secondary metabolites isolated from plant, microbial and marine origin. RESULTS We had earlier reported a detailed account of natural product inhibitors of COX reported during 1995-2005, in 2006. In the proposed review, we report 158 natural product inhibitors of COX during 2006 to 2019 belonging to various secondary metabolite classes such as alkaloids, terpenoids, polyphenols as flavonoids, chromones, coumarins, lignans, anthraquinones, naphthalenes, curcuminoids, diarylheptanoids and miscellaneous compounds of plant and marine origin. Further Structure Activity Relationship (SAR) studies of possible leads are also included in the article. CONCLUSION COX inhibitors served as a potential source of lead molecules for the discovery and development of anti-inflammatory drugs. Compilation of natural product and semisynthetic inhibitors of COX may serve as valuable information to the researchers who are looking for possible lead molecules from a natural source to conduct further preclinical and clinical studies.
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Affiliation(s)
- Goutami G Ambati
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, SAS Nagar 160062, Mohali, India
| | - Sanjay M Jachak
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, SAS Nagar 160062, Mohali, India
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Li Q, Li K, Hu T, Liu F, Liao S, Zou Y. 6,7-Dihydroxy-2,4-Dimethoxyphenanthrene from Chinese Yam Peels Alleviates DSS-Induced Intestinal Mucosal Injury in Mice via Modulation of the NF-κB/COX-2 Signaling Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:4720-4731. [PMID: 33760601 DOI: 10.1021/acs.jafc.1c00487] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, we evaluated the protective effect and molecular mechanism of a dominant phenanthrene, (6,7-dihydroxy-2,4-dimethoxyphenanthrene, CYP4), from Chinese yam peels on intestinal epithelial integrity. Three doses of Chinese yam phenolic extract (CYPE) and Chinese yam phenanthrene 4 (CYP4) were administered to BALB/c mice for 7 days before dextran sulfate sodium (DSS) treatment, with berberine hydrochloride as a positive control (PC). Results showed that both disease activity indexes (DAIs), histological damage score (HDS) and survival rate in DSS mice, were improved with preintervention of CYPE and CYP4, which exhibited better efficiency than PC. Further studies showed that administration of CYP4 downregulated the oxidative stress-associated factors, MPO and NO, and improved tight junction protein occludin. Besides, the CYP4 treatment substantially downregulated the caspase-3 expression and the apoptosis rate of intestinal epithelial cells. In addition, the CYP4 treatment ameliorated the production of inflammatory cytokines including TNF-α, IFN-γ, IL-10, and IL-23 in the colon. Furthermore, the protein expression of ERK1/2, NF-κB p65, pNF-κB, and COX-2 was suppressed in CYE4 groups as compared with that in model control (MC). These findings suggested that CHP4 could effectively inhibit the activation of NF-κB/COX-2 in an experimental UC model in vivo. It was demonstrated for the first time that CYPE and CYP4 protected intestinal mucosa from damage and prevented DSS-induced colitis in mice. CYP4 was one of the active principles obligatory for the biological effect of Chinese yam in protecting intestinal health. These findings indicated that CYP4 might be a promising and useful approach for treatment of UC in humans.
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Affiliation(s)
- Qian Li
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Konghui Li
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Tenggen Hu
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Fan Liu
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Sentai Liao
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Yuxiao Zou
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
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Schultz F, Osuji OF, Wack B, Anywar G, Garbe LA. Antiinflammatory Medicinal Plants from the Ugandan Greater Mpigi Region Act as Potent Inhibitors in the COX-2/PGH 2 Pathway. PLANTS 2021; 10:plants10020351. [PMID: 33673238 PMCID: PMC7918315 DOI: 10.3390/plants10020351] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/28/2021] [Accepted: 02/09/2021] [Indexed: 12/11/2022]
Abstract
Our study investigates 16 medicinal plants via assessment of inhibition of proinflammatory enzymes such as cyclooxygenases (COX). The plants are used by traditional healers in the Greater Mpigi region in Uganda to treat inflammation and related disorders. We present results of diverse in vitro experiments performed with 76 different plant extracts, namely, (1) selective COX-2 and COX-1 inhibitor screening; (2) 15-LOX inhibition screening; (3) antibacterial resazurin assay against multidrug-resistant Staphylococcus aureus, Listeria innocua, Listeria monocytogenes, and Escherichia coli K12; (4) DPPH assay for antioxidant activity; and (5) determination of the total phenolic content (TPC). Results showed a high correlation between traditional use and pharmacological activity, e.g., extracts of 15 out of the 16 plant species displayed significant selective COX-2 inhibition activity in the PGH2 pathway. The most active COX-2 inhibitors (IC50 < 20 µg/mL) were nine extracts from Leucas calostachys, Solanum aculeastrum, Sesamum calycinum subsp. angustifolium, Plectranthus hadiensis, Morella kandtiana, Zanthoxylum chalybeum, and Warburgia ugandensis. There was no counteractivity between COX-2 and 15-LOX inhibition in these nine extracts. The ethyl acetate extract of Leucas calostachys showed the lowest IC50 value with 0.66 µg/mL (COX-2), as well as the most promising selectivity ratio with 0.1 (COX-2/COX-1). The TPCs and the EC50 values for DPPH radical scavenging activity showed no correlation with COX-2 inhibitory activity. This led to the assumption that the mechanisms of action are most likely not based on scavenging of reactive oxygen species and antioxidant activities. The diethyl ether extract of Harungana madagascariensis stem bark displayed the highest growth inhibition activity against S. aureus (MIC value: 13 µg/mL), L. innocua (MIC value: 40 µg/mL), and L. monocytogenes (MIC value: 150 µg/mL). This study provides further evidence for the therapeutic use of the previously identified plants used medicinally in the Greater Mpigi region.
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Affiliation(s)
- Fabien Schultz
- Institute of Biotechnology, Faculty III—Process Sciences, Technical University of Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
- Department of Agriculture and Food Sciences, Neubrandenburg University of Applied Sciences, Brodaer Str. 2, 17033 Neubrandenburg, Germany; (O.F.O.); (B.W.); (L.-A.G.)
- Correspondence: ; Tel.: +49-395-5693-2704
| | - Ogechi Favour Osuji
- Department of Agriculture and Food Sciences, Neubrandenburg University of Applied Sciences, Brodaer Str. 2, 17033 Neubrandenburg, Germany; (O.F.O.); (B.W.); (L.-A.G.)
| | - Barbara Wack
- Department of Agriculture and Food Sciences, Neubrandenburg University of Applied Sciences, Brodaer Str. 2, 17033 Neubrandenburg, Germany; (O.F.O.); (B.W.); (L.-A.G.)
| | - Godwin Anywar
- Department of Plant Sciences, Microbiology and Biotechnology, Makerere University, P.O. Box 7062 Kampala, Uganda;
| | - Leif-Alexander Garbe
- Department of Agriculture and Food Sciences, Neubrandenburg University of Applied Sciences, Brodaer Str. 2, 17033 Neubrandenburg, Germany; (O.F.O.); (B.W.); (L.-A.G.)
- ZELT—Neubrandenburg Center for Nutrition and Food Technology gGmbH, Seestraße 7A, 17033 Neubrandenburg, Germany
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Sun L, Di YM, Lu C, Guo X, Tang X, Zhang AL, Xue CC, Fan G. Additional Benefit of Chinese Medicine Formulae Including Dioscoreae rhizome (Shanyao) for Diabetes Mellitus: Current State of Evidence. Front Endocrinol (Lausanne) 2020; 11:553288. [PMID: 33244311 PMCID: PMC7685178 DOI: 10.3389/fendo.2020.553288] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 10/14/2020] [Indexed: 01/12/2023] Open
Abstract
Background Chinese medicine has been used to treat diabetes symptoms for thousands of years. Dioscoreae rhizome or Shanyao is a Chinese medicinal herb that is routinely used in the treatment of diabetes mellitus (DM). Objective The purpose of this study is to evaluate the evidence of the added benefits and safety of herbal formulae containing Shanyao in clinical studies and the possible mechanisms of Shanyao in the prevention and treatment of DM in experimental studies. Methods We searched nine databases for randomized controlled trials (RCTs) that included Shanyao in the formulae in the treatment of type 2 DM. Furthermore, experimental studies on the prevention and treatment of DM by Shanyao in English- and Chinese-language databases were identified. Results Fifty-three moderate quality RCTs with herbal formulae containing Shanyao were identified. Results from meta-analysis indicated that Shanyao alone or formulae containing Shanyao in addition to conventional treatments could benefit people with type 2 DM in lowering blood glucose, blood lipids and reducing insulin resistance. Moreover, adverse events were significantly lower in the CHM plus conventional group than those in the conventional group. Shanyao may exert the benefit through various mechanisms including inhibition of α-glucosidase and DPP-IV activity, increase of endogenous GLP-1 and immune regulating activities. Conclusion Evidence from this review suggested that there appeared to be added clinical benefits associated with the use of Shanyao for DM, whether as a food supplement or as a CHM combined with hypoglycemic agents with a good safety profile.
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Affiliation(s)
- Lu Sun
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Yuan Ming Di
- The China–Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - Chuanjian Lu
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- The China–Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - Xinfeng Guo
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Xianyu Tang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Anthony Lin Zhang
- The China–Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - Charlie Changli Xue
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- The China–Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - Guanjie Fan
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
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Utilizing a copper-free Sonogashira reaction in the synthesis of the leukotriene a4 hydrolase modulator batatasin IV. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Phenanthrenes isolated from diocorea batatas Decne peel with anti-platelet aggregation activity via direct factor Xa inhibitory activity. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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18
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Beura S, Chetti P. Identification of potential human COX-2 inhibitors using computational modeling and molecular dynamics simulations. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128271] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Cytotoxic and Antioxidant Effects of Antimalarial Herbal Mixtures. Int J Microbiol 2020; 2020:8645691. [PMID: 32104181 PMCID: PMC7035539 DOI: 10.1155/2020/8645691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 01/01/2020] [Accepted: 01/20/2020] [Indexed: 01/21/2023] Open
Abstract
Many developing countries depend on herbal mixtures as the first line and cost-effective therapy for malaria. These mixtures with such curative tendencies may also be a source of toxicity to host cells. On the other hand, these mixtures may have anticancer potential activity characterized by cytotoxicity to cancer cells. The aim of the study was to determine the cytotoxic and antioxidant effects of five different antimalarial herbal mixtures. Five antimalarial herbal mixtures commonly used in Ghana (coded as STF, SMH, SMM, SGM, and STT) were purchased and freeze-dried. The dried samples were tested on human acute T-cell leukemia (Jurkat) and breast adenocarcinoma (MCF-7) cell lines. Cytotoxicity was assessed using the tetrazolium-based colorimetric (MTT) assay while antioxidant activity was determined using DPPH free-radical scavenging assay. Among the mixtures, SMM and SGM exhibited the strongest cytotoxicity towards Jurkat cells (IC50 values 59.17 μg/ml and 49.57 μg/ml, respectively), whereas STT showed the weakest cytotoxicity (IC50 = 244.94 μg/ml). Cytotoxic effect of SMM was also strongest towards MCF-7 cells whilst the least cytotoxic sample was SGM (IC50 > 1000 μg/ml). SMM had the highest antioxidant percentage (EC50 = 1.05 mg/ml). The increasing order of antioxidant percentage among the five herbal mixtures is SMM > SMH > STT > STF > SGM. The herbal mixtures may be potential sources of toxic agents to host cells. Therefore, further toxicity studies must be performed to safeguard health of the public. Interestingly, cytotoxicities exhibited by SMM and SGM suggest the presence of anticancer constituents in them which warrant further studies.
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Singh VP, Dowarah J, Tewari AK, Geiger DK. Structural chemistry and anti-inflammatory activity of flexible/restricted phenyl dimers. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01853-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Oka S, Kuniba R, Tsuboi N, Tsuchida S, Ushida K, Tomoshige S, Kuramochi K. Isolation, synthesis, and biological activities of a bibenzyl from Empetrum nigrum var. japonicum. Biosci Biotechnol Biochem 2020; 84:31-36. [DOI: 10.1080/09168451.2019.1662279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
ABSTRACT
4-(2-Hydroxyphenethyl)-2,6-dimethoxyphenol, a bibenzyl, was isolated from the leaves of Empetrum nigrum var. japonicum, collected from Mount Tateyama. Japanese rock ptarmigans frequently eat the leaves and fruits of this plant. The structure of the bibenzyl was confirmed by NMR spectroscopic analysis and fully characterized. A synthesis of this compound was accomplished by coupling 2-hydroxyphenylacetic acid with syringaldehyde, decarboxylation of the resultant isoaurones, and hydrogenation of the double bond in the corresponding stilbene. This compound displayed cytotoxic activity against human cancer cells (HCT116 and Hela cells) and leukemia cells (HL-60 cells). The present study suggests that this plant serves as a source of biologically active natural products. Also, our findings provide information on the secondary metabolites in the diet of Japanese rock ptarmigans.
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Affiliation(s)
- Sayuki Oka
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Ryo Kuniba
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Nozomi Tsuboi
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Sayaka Tsuchida
- Academy of Emerging Sciences, Chubu University, Kasugai-shi, Aichi, Japan
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Kazunari Ushida
- Academy of Emerging Sciences, Chubu University, Kasugai-shi, Aichi, Japan
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Shusuke Tomoshige
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Kouji Kuramochi
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
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Narayanan S, Kurian NK, Bhat SG. Ultra-small pyomelanin nanogranules abiotically derived from bacteria-secreted homogentisic acid show potential applications in inflammation and cancer. BIONANOSCIENCE 2019. [DOI: 10.1007/s12668-019-00689-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Quantitative Analysis of Bioactive Phenanthrenes in Dioscorea batatas Decne Peel, a Discarded Biomass from Postharvest Processing. Antioxidants (Basel) 2019; 8:antiox8110541. [PMID: 31717654 PMCID: PMC6912652 DOI: 10.3390/antiox8110541] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/04/2019] [Accepted: 11/08/2019] [Indexed: 12/12/2022] Open
Abstract
Dioscorea batatas Decne (Chinese yam) has been widely cultivated in East Asia for the purposes of food and medicinal uses for centuries. Along with its high nutritional value, the medicinal value of D. batatas has been extensively investigated in association with phytochemicals such as allantoin, flavonoids, saponins and phenanthrenes. Phenanthrenes are especially considered the standard marker chemicals of the Chinese yam for their potent bioactivity and availability of analysis with conventional high performance liquid chromatography with ultraviolet detection (HPLC-UV) methods. In order to investigate how much the contents of phenanthrenes are in the actual food products provided for consumers, D. batatas tuber was peeled and separated into its peel and flesh as in the conventional processing method. A quantitative analysis using the HPLC-UV method revealed that phenanthrenes are concentrically present in the D. batatas peel, while phenanthrenes are present in the flesh under the limit of detection. The difference in the contents of phenanthrenes is estimated to have arisen the considerable difference of antioxidant potential between the peel and the flesh. The results from this study suggest the high value of the discarded biomass of the Chinese yam peel and the necessity for the utilization of the Chinese yam peel.
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Sharma V, Bhatia P, Alam O, Javed Naim M, Nawaz F, Ahmad Sheikh A, Jha M. Recent advancement in the discovery and development of COX-2 inhibitors: Insight into biological activities and SAR studies (2008–2019). Bioorg Chem 2019; 89:103007. [DOI: 10.1016/j.bioorg.2019.103007] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 12/13/2022]
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Lim JW, Chee SX, Wong WJ, He QL, Lau TC. Traditional Chinese medicine: herb-drug interactions with aspirin. Singapore Med J 2018; 59:230-239. [PMID: 29796686 DOI: 10.11622/smedj.2018051] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Traditional Chinese medicine (TCM)-based herbal therapies have gained increasing popularity worldwide, raising concerns of its efficacy, safety profile and potential interactions with Western medications. Antithrombotic agents are among the most common prescription drugs involved in herb-drug interactions, and this article focused on aspirin, one of the most widely used antiplatelet agents worldwide. We discussed herbs that have potential interactions by exploring Western and TCM approaches to thrombotic events. Common TCM indications for these herbs were also highlighted, including possible scenarios of their concurrent usage with aspirin. With greater awareness and understanding of potential herb-drug interactions, TCM and Western physicians may collaborate more closely to identify, treat and, most importantly, prevent adverse drug events.
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Affiliation(s)
- Jia Wei Lim
- University Medicine Cluster, National University Health System, Singapore
| | | | - Wen Jun Wong
- Eu Yan Sang Integrative Health Pte Ltd, Singapore
| | - Qiu Ling He
- Eu Yan Sang Integrative Health Pte Ltd, Singapore
| | - Tang Ching Lau
- University Medicine Cluster, National University Health System, Singapore.,Division of Rheumatology, University Medicine Cluster, National University Health System, Singapore
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Abstract
From ancient times, natural products have been continuously used as therapeutic agents in the treatment of various ailments. Many drugs from the natural origin are available in the market as potent medicines. Over expression of cyclooxygenase-2 (COX-2) enzyme is associated with various physical disorders like various types of inflammations associated with cardiovascular diseases or malignancies. The COX-2 inhibitory activity of many active constituents derived from plants is well established in the literature. These include coumarins, alkaloids, flavonoids, cinnamates, stilbenes and xanthines. In the present review, an attempt has been made to summarize applications of compounds since 2000 obtained from natural sources as COX-2 inhibitors. A brief synthetic methodology to access these natural product derivatives has been highlighted along with the Structure Activity Relationship (SAR).
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Tóth B, Hohmann J, Vasas A. Phenanthrenes: A Promising Group of Plant Secondary Metabolites. JOURNAL OF NATURAL PRODUCTS 2018; 81:661-678. [PMID: 29280630 DOI: 10.1021/acs.jnatprod.7b00619] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Although phenanthrenes are considered to constitute a relatively small group of natural products, discovering new phenanthrene derivatives and evaluating their prospective biological activities have become of great interest to many research groups worldwide. Based on 160 references, this review covers the phytochemistry and pharmacology of 213 naturally occurring phenanthrenes that have been isolated between 2008 and 2016. More than 40% of the 450 currently known naturally occurring phenanthrenes were identified during this period. The family Orchidaceae is the most abundant source of these compounds, although several new plant families and genera have been involved in the search for phenanthrenes. The presence of certain substituent patterns may be restricted to specific families; vinyl-substituted phenanthrenes were reported only from Juncaceae plants, and prenylated derivatives occur mainly in Euphorbiaceae species. Therefore, these compounds also can serve as chemotaxonomic markers. Almost all of the newly isolated compounds have been studied for their biological activities (e.g., potential cytotoxic, antimicrobial, anti-inflammatory, and antioxidant effects), and many of them showed multiple activities. According to the accumulated data, denbinobin, with a novel mechanism of action, has great potential as a lead compound for the development of a new anticancer agent.
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Affiliation(s)
- Barbara Tóth
- Department of Pharmacognosy , University of Szeged , 6720 Szeged , Hungary
| | - Judit Hohmann
- Department of Pharmacognosy , University of Szeged , 6720 Szeged , Hungary
- Interdisciplinary Centre of Natural Products , University of Szeged , 6720 Szeged , Hungary
| | - Andrea Vasas
- Department of Pharmacognosy , University of Szeged , 6720 Szeged , Hungary
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Jegal J, Park NJ, Bong SK, Jegal H, Kim SN, Yang MH. Dioscorea quinqueloba Ameliorates Oxazolone- and 2,4-Dinitrochlorobenzene-induced Atopic Dermatitis Symptoms in Murine Models. Nutrients 2017; 9:nu9121324. [PMID: 29206209 PMCID: PMC5748774 DOI: 10.3390/nu9121324] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 01/29/2023] Open
Abstract
Dioscorea quinqueloba has been used for food substances, as well as in herbal medicines for allergic diseases such as asthma. This study aimed to investigate the anti-atopic dermatitis (AD) effects of the total extract of D. quinqueloba rhizomes and active fractionson murine oxazolone- and 2,4-dinitrochlorobenzene-induced models of AD. Specific AD symptoms, such as erythema, ear swelling, and epidermis thickening, were significantly reduced in the oxazolone-mediated AD BALB/c mice upon topical application of D. quinqueloba rhizomes 95% EtOH extract (DQ). DQEA (D. quinqueloba rhizomes EtOAc fraction) was beneficial for protecting the skin barrier against AD in DNCB-sensitized SKH-1 hairless mice. Decreased total serum IgE and IL-4 levels could be observed in atopic dorsal skin samples of the DQEA-treated group. On the basis of the phytochemical analysis, DQEA was found to contain dioscin and gracillin as its main compounds. Therapeutic applications with D. quinqueloba might be useful in the treatment of AD and related inflammatory skin diseases.
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Affiliation(s)
- Jonghwan Jegal
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea.
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea.
| | - Hyun Jegal
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea.
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea.
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
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29
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Li Q, Li W, Gao Q, Zou Y. Hypoglycemic Effect of Chinese Yam (Dioscorea opposita rhizoma
) Polysaccharide in Different Structure and Molecular Weight. J Food Sci 2017; 82:2487-2494. [DOI: 10.1111/1750-3841.13919] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/11/2017] [Accepted: 08/14/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Qian Li
- Carbohydrate Lab, School of Food Science and Engineering; South China Univ. of Technology; Guangzhou 510640 P.R. China
- Sericultural & Agri-Food Research Inst. Guangdong Acad. of Agricultural Sciences; Guangzhou 510610 P.R. China
| | - Wenzhi Li
- Carbohydrate Lab, School of Food Science and Engineering; South China Univ. of Technology; Guangzhou 510640 P.R. China
- Infinitus (China) Company Ltd; Jiangmen Guangdong 529156 P.R. China
| | - Qunyu Gao
- Carbohydrate Lab, School of Food Science and Engineering; South China Univ. of Technology; Guangzhou 510640 P.R. China
| | - Yuxiao Zou
- Sericultural & Agri-Food Research Inst. Guangdong Acad. of Agricultural Sciences; Guangzhou 510610 P.R. China
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Jing SS, Wang Y, Li XJ, Li X, Zhao WS, Zhou B, Zhao CC, Huang LQ, Gao WY. Phytochemical and chemotaxonomic studies on Dioscorea collettii. BIOCHEM SYST ECOL 2017. [DOI: 10.1016/j.bse.2017.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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31
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Du D, Jin T, Zhang R, Hu L, Xing Z, Shi N, Shen Y, Gong M. Phenolic compounds isolated from Dioscorea zingiberensis protect against pancreatic acinar cells necrosis induced by sodium taurocholate. Bioorg Med Chem Lett 2017; 27:1467-1470. [PMID: 28228364 DOI: 10.1016/j.bmcl.2017.01.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/04/2017] [Accepted: 01/06/2017] [Indexed: 02/05/2023]
Abstract
One new bibenzyl (1) and one new phenanthrene (2), together with two known bibenzyls (3-4) and four known diarylheptanoids (5-8) were isolated from the rhizomes of Dioscorea zingiberensis. The structures of 1-2 were elucidated by spectroscopic methods including 1D and 2D NMR. Phenols 1-8 were evaluated for their anti-pancreatitic activities on sodium taurocholate (NaT)-induced pancreatic acinars necrosis. Notably, 0.5mM of compound 6 exhibited comparable inhibitory effect with 5mM of caffeine. Furthermore, compound 6 prevented the ATP depletion and excessive ROS production which could be also involved in mitochondria-mediated injuries in acute pancreatitis. As a result, compound 6 has been demonstrated to be a potential candidate for mediating mitochondrial dysfunction to prevent pancreatic necrosis. This study is also the first report on the isolation of bibenzyls and diarylheptanoids from this plant.
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Affiliation(s)
- Dan Du
- West China-Washington Mitochondria and Metabolism Center, West China Hospital/West China Medical School, Sichuan University, Chengdu 610041, China.
| | - Tao Jin
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital/West China Medical School, Sichuan University, Chengdu 610041, China
| | - Rui Zhang
- Laboratory of Ethnopharmacology, West China Hospital/West China Medical School, Sichuan University, Chengdu 610041, China
| | - Liqiang Hu
- West China-Washington Mitochondria and Metabolism Center, West China Hospital/West China Medical School, Sichuan University, Chengdu 610041, China
| | - Zhihua Xing
- Laboratory of Ethnopharmacology, West China Hospital/West China Medical School, Sichuan University, Chengdu 610041, China
| | - Na Shi
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital/West China Medical School, Sichuan University, Chengdu 610041, China
| | - Yan Shen
- Laboratory of Ethnopharmacology, West China Hospital/West China Medical School, Sichuan University, Chengdu 610041, China
| | - Meng Gong
- West China-Washington Mitochondria and Metabolism Center, West China Hospital/West China Medical School, Sichuan University, Chengdu 610041, China.
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Li Q, Zhang CR, Dissanayake AA, Gao QY, Nair MG. Phenanthrenes in Chinese Yam Peel Exhibit Anti-inflammatory Activity, as Shown by Strong in Vitro Cyclooxygenase Enzyme Inhibition. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100933] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Chinese yam ( Dioscorea opposita), peeled or whole, is a popular food item that is considered to be healthy. Often, the yam is peeled before cooking. However, it is also consumed with peel. Therefore, in this study, the peel of this yam was extracted sequentially with n-hexane, ethyl acetate and methanol, and studied for its health-benefits, using in vitro bioassays. Bioactivity-guided purifications of extracts of the peel afforded phenanthrenes (1-4), as characterized by spectroscopic methods. Phenanthrene 1 is a novel analogue. The extracts and isolates were tested for anti-inflammatory activity using cyclooxygenase enzyme (COX-1 and -2) inhibitory assays. All phenanthrenes isolated from the yam peel showed higher inhibition of COX enzymes than the over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs) aspirin, ibuprofen and naproxen.
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Affiliation(s)
- Qian Li
- Bioactive Natural Products and Phytoceuticals Laboratory, Department of Horticulture, Michigan State University, East Lansing, Michigan, 48824, USA
- Carbohydrate Laboratory, College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, P.R. China
| | - Chuan-Rui Zhang
- Bioactive Natural Products and Phytoceuticals Laboratory, Department of Horticulture, Michigan State University, East Lansing, Michigan, 48824, USA
| | - Amila A. Dissanayake
- Bioactive Natural Products and Phytoceuticals Laboratory, Department of Horticulture, Michigan State University, East Lansing, Michigan, 48824, USA
| | - Qun-yu Gao
- Carbohydrate Laboratory, College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, P.R. China
| | - Muraleedharan G. Nair
- Bioactive Natural Products and Phytoceuticals Laboratory, Department of Horticulture, Michigan State University, East Lansing, Michigan, 48824, USA
- College of Food and Agriculture Sciences, Chair of Date Palm Research, King Saud University, Riyadh, 11451, Saudi Arabia
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Dey P, Roy Chowdhuri S, Sarkar MP, Chaudhuri TK. Evaluation of anti-inflammatory activity and standardisation of hydro-methanol extract of underground tuber of Dioscorea alata. PHARMACEUTICAL BIOLOGY 2016; 54:1474-1482. [PMID: 26864460 DOI: 10.3109/13880209.2015.1104702] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Context The underground edible tuber of Dioscorea alata L. (Dioscoreaceae) is a functional food with high nutritive value and therapeutic potential. The tuber is known to possess anti-inflammatory properties in traditional medicine. Objective The present study explores the anti-inflammatory activity and standardisation of D. alata tuber hydromethanol extract. Materials and methods Hydromethanol extract (70%) of D. alata tuber was chemically characterised using HPLC and GC-MS techniques. Murine lymphocytes were cultured for 48 h with six different concentrations (0-80 μg/mL) of the extract. The expression of nitric oxide (NO), TNF-α, COX-1, COX-2, and PGE2 were evaluated using colorimetric and ELISA methods. Results Dioscorea alata extract inhibited the expression of NO and TNF-α with an IC50 value of 134.51 ± 6.75 and 113.30 ± 7.44 μg/mL, respectively. The IC50 values for inhibition of total COX, COX-1, COX-2 activities and PGE2 level were 41.96 ± 3.07, 141.41 ± 8.99, 32.50 ± 1.69, and 186.34 ± 15.36 μg/mL, respectively. Inhibition of PGE2 level and COX-2 activity was positively correlated (R(2) = 0.9393). Gallic acid (GA), 4-hydroxy benzoic acid (4HBA), syringic acid (SYA), p-coumaric acid (PCA), and myricetin (MY) were identified and quantified using HPLC. GC-MS analysis revealed the presence of 13 different phytocompounds such as hexadecanoic acid, methyl stearate, cinnamyl cinnamate, and squalene. Conclusion The D. alata extract significantly down-regulated the pro-inflammatory signals in a gradual manner compared with control (0 μg/mL). Different bioactive phytocompounds individually possessing anti-inflammatory activities contributed to the overall bioactivity of the D. alata tuber extract.
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Affiliation(s)
- Priyankar Dey
- a Cellular Immunology Laboratory, Department of Zoology , University of North Bengal , Siliguri , West Bengal , India
| | - Sumedha Roy Chowdhuri
- b Chemical Signal and Lipidomics Laboratory, Department of Botany , University of Calcutta , Kolkata , West Bengal , India
| | - Mousumi Poddar Sarkar
- b Chemical Signal and Lipidomics Laboratory, Department of Botany , University of Calcutta , Kolkata , West Bengal , India
| | - Tapas Kumar Chaudhuri
- a Cellular Immunology Laboratory, Department of Zoology , University of North Bengal , Siliguri , West Bengal , India
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Diocollettines A, an unusual tricyclic diarylheptanoid derivative from the rhizomes of Dioscorea collettii. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Laube M, Kniess T, Pietzsch J. Development of Antioxidant COX-2 Inhibitors as Radioprotective Agents for Radiation Therapy-A Hypothesis-Driven Review. Antioxidants (Basel) 2016; 5:antiox5020014. [PMID: 27104573 PMCID: PMC4931535 DOI: 10.3390/antiox5020014] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 04/08/2016] [Accepted: 04/11/2016] [Indexed: 12/12/2022] Open
Abstract
Radiation therapy (RT) evolved to be a primary treatment modality for cancer patients. Unfortunately, the cure or relief of symptoms is still accompanied by radiation-induced side effects with severe acute and late pathophysiological consequences. Inhibitors of cyclooxygenase-2 (COX-2) are potentially useful in this regard because radioprotection of normal tissue and/or radiosensitizing effects on tumor tissue have been described for several compounds of this structurally diverse class. This review aims to substantiate the hypothesis that antioxidant COX-2 inhibitors are promising radioprotectants because of intercepting radiation-induced oxidative stress and inflammation in normal tissue, especially the vascular system. For this, literature reporting on COX inhibitors exerting radioprotective and/or radiosensitizing action as well as on antioxidant COX inhibitors will be reviewed comprehensively with the aim to find cross-points of both and, by that, stimulate further research in the field of radioprotective agents.
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Affiliation(s)
- Markus Laube
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, Dresden D-01328, Germany.
| | - Torsten Kniess
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, Dresden D-01328, Germany.
| | - Jens Pietzsch
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, Dresden D-01328, Germany.
- Department of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden D-01062, Germany.
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Zahari A, Ablat A, Sivasothy Y, Mohamad J, Choudhary MI, Awang K. In vitro antiplasmodial and antioxidant activities of bisbenzylisoquinoline alkaloids from Alseodaphne corneri Kosterm. ASIAN PAC J TROP MED 2016; 9:328-332. [DOI: 10.1016/j.apjtm.2016.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/20/2016] [Accepted: 03/01/2016] [Indexed: 10/22/2022] Open
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Du D, Zhang R, Xing Z, Liang Y, Li S, Jin T, Xia Q, Long D, Xin G, Wang G, Huang W. 9,10-Dihydrophenanthrene derivatives and one 1,4-anthraquinone firstly isolated from Dioscorea zingiberensis C. H. Wright and their biological activities. Fitoterapia 2016; 109:20-4. [DOI: 10.1016/j.fitote.2015.11.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/25/2015] [Accepted: 11/28/2015] [Indexed: 10/22/2022]
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Ultraviolet-visible study on acid-base equilibria of aporphine alkaloids with antiplasmodial and antioxidant activities from Alseodaphne corneri and Dehaasia longipedicellata. Sci Rep 2016; 6:21517. [PMID: 26898753 PMCID: PMC4761911 DOI: 10.1038/srep21517] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 01/26/2016] [Indexed: 11/23/2022] Open
Abstract
The UV-vis spectra of isocorydine 1, norisocorydine 2 and boldine 3 were studied in 2% v/v acetonitrile, at constant ionic strength (0.1 M NaCl, 35 degree Celsius). The pKa values of isocorydine 1 and norisocorydine 2 were 11.75 and 12.07, respectively. Boldine 3 gave a pKa value of 9.16 and 10.44. All of the alkaloids 1–3 were stable at physiological pH; thereby all of them will not ionize, thus permitting the basic nitrogen to be protonated and accumulated within the acidic food vacuole of Plasmodium via pH trapping. Subsequently, acidic food vacuoles that have been neutralized by alkaloids would result in enhancement of the antiplasmodial activity. The alkaloids showed antiplasmodial activity against Plasmodium falciparum and antioxidant activities; DPPH radical scavenging, metal chelating and ferric reducing power. The antioxidant properties of the alkaloids under investigation revealed that in addition to the antiplasmodial activity, the alkaloids can also prevent oxidative damage. It can be prevented by binding free heme and neutralizing the electrons produced during the Plasmodium falciparum mediated haemoglobin destruction in the host. Slightly basic properties of the aforementioned alkaloids, along with their antioxidant activities, are advantageous in improving the suppression of malaria infection that cause less damage to the host.
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Yang MH, Chin YW, Chae HS, Yoon KD, Kim J. Anti-adipogenic constituents from Dioscorea opposita in 3T3-L1 cells. Biol Pharm Bull 2015; 37:1683-8. [PMID: 25273391 DOI: 10.1248/bpb.b14-00216] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We previously reported the lipase inhibitory activity of the n-BuOH fraction of Dioscorea opposita (DOB) and its isolates. This study sought to evaluate their anti-adipogenic activity in terms of their effects on the adipogenic transcription factors peroxisome proliferator-activated receptor γ (PPARγ) and CCAAT/enhancer binding protein α (C/EBPα) as well as phosphorylated AMP-activated protein kinase (p-AMPK) and carnitine palmitoyl transferase-1 (CPT-1). DOB apparently attenuated 3T3-L1 adipocyte differentiation (33.6% decrease at 20 µg/mL). In addition, a marked decrease (90.4%) in the expression of PPARγ was observed in the DOB-treated 3T3-L1 cells. Four isolates from DOB: (4E,6E)-1,7-bis(4-hydroxyphenyl)-4,6-heptadien-3-one (1), (3R,5R)-1,7-bis(4-hydroxy-3-methoxyphenyl)-3,5-heptanediol (2), batatasin I (3), and (1E,4E,6E)-1,7-bis(4-hydroxyphenyl)-1,4,6-heptatrien-3-one (4), suppressed adipocyte differentiation by inhibiting PPARγ at 20 µM (85.9%, 68.6%, 76.2%, and 90.2% decrease, respectively) and C/EBPα (51.7%, 3.1%, 20.9%, and 59.8% decrease, respectively). Batatasin I was found to increase p-AMPK and CPT-1 at a concentration of 20 µM in 3T3-L1 adipocytes, resulting in inhibiting adipogenesis. Taken together, batatasin I might be responsible for the anti-adipogenic effect of DOB via inhibition of PPARγ and C/EBPα and activation of p-AMPK and CPT-1.
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Affiliation(s)
- Min Hye Yang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University
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40
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Laube M, Gassner C, Sharma SK, Günther R, Pigorsch A, König J, Köckerling M, Wuest F, Pietzsch J, Kniess T. Diaryl-Substituted (Dihydro)pyrrolo[3,2,1-hi]indoles, a Class of Potent COX-2 Inhibitors with Tricyclic Core Structure. J Org Chem 2015; 80:5611-24. [PMID: 25909690 DOI: 10.1021/acs.joc.5b00537] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new compound class of diaryl-substituted heterocycles with tricyclic dihydropyrrolo[3,2,1-hi]indole and pyrrolo[3,2,1-hi]indole core structures has been designed and was synthesized by a modular sequence of Friedel-Crafts acylation, amide formation, and McMurry cyclization. This synthesis route represents a novel and versatile access toward dihydropyrrolo[3,2,1-hi]indoles and is characterized by good chemical yields and high modularity. From a set of 19 derivatives, 11 candidates were selected for determination of their COX inhibition potency and were found to be selective inhibitors with high affinity to COX-2 (IC50 ranging from 20-2500 nM and negligible inhibition of COX-1). The binding mode of the novel inhibitors in the active side of COX-2 was calculated in silico using the protein-ligand docking program GOLD by application of the molecular structures of two compounds derived from X-ray crystallography. Two novel compounds with high affinity to COX-2 (6k = 70 nM, 8e = 60 nM) have a fluoro substituent, making them promising candidates for the development of (18)F-radiolabeled COX-2 inhibitors for imaging purposes with positron emission tomography (PET).
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Affiliation(s)
- Markus Laube
- †Helmholtz-Zentrum Dresden-Rossendorf, Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.,‡Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Cemena Gassner
- †Helmholtz-Zentrum Dresden-Rossendorf, Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.,‡Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Sai Kiran Sharma
- §Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, Alberta, Canada T6G 1Z2
| | - Robert Günther
- ∥Helmholtz-Zentrum Dresden-Rossendorf, Department of Neuroradiopharmaceuticals, Institute of Radiopharmaceutical Cancer Research, Research Site Leipzig, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Arne Pigorsch
- ○Department of Inorganic Solid State Chemistry, Institute of Chemistry, University of Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Jonas König
- ○Department of Inorganic Solid State Chemistry, Institute of Chemistry, University of Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Martin Köckerling
- ○Department of Inorganic Solid State Chemistry, Institute of Chemistry, University of Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Frank Wuest
- §Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, Alberta, Canada T6G 1Z2
| | - Jens Pietzsch
- †Helmholtz-Zentrum Dresden-Rossendorf, Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.,‡Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Torsten Kniess
- †Helmholtz-Zentrum Dresden-Rossendorf, Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
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Zhuang H, Ni Y, Kokot S. A Comparison of Near- and Mid-Infrared Spectroscopic Methods for the Analysis of Several Nutritionally Important Chemical Substances in the Chinese Yam (Dioscorea opposita): Total Sugar, Polysaccharides, and Flavonoids. APPLIED SPECTROSCOPY 2015; 69:488-95. [PMID: 25742643 DOI: 10.1366/14-07655] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The Chinese yam (Dioscorea opposita) is a basic food in Asia and especially China. Consequently, an uncomplicated, reliable method should be available for the analysis of the quality and origin of the yams. Thus, near-infrared (NIR) and mid-infrared (mid-IR) spectroscopic methods were developed to discriminate among Chinese yam samples collected from four geographical regions. The yam samples were analyzed also for total sugar, polysaccharides, and flavonoids. These three analytes were used to compare the performance of the analytical methods. Overlapping spectra were resolved using chemometrics methods. Such spectra were compared qualitatively using principal component analysis (PCA) and quantitatively using partial least squares (PLS) and least squares-support vector machine (LS-SVM) models. We discriminated among the four sets of yam data using PCA, and the NIR data performed somewhat better than the mid-IR data. We constructed the PLS and LS-SVM calibration models for the prediction of the three key variables, and the LS-SVM model produced better results. Also, the NIR prediction model produced better outcomes than the mid-IR prediction model. Thus, both infrared (IR) techniques performed well for the analysis of the three key analytes, and the samples were qualitatively discriminated according to their provinces of origin. Both techniques may be recommended for the analysis of Chinese yams, although the NIR technique would be preferred.
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Affiliation(s)
- Hua Zhuang
- Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China
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Silva T, Borges F, Edraki N, Alizadeh M, Miri R, Saso L, Firuzi O. Hydroxycinnamic acid as a novel scaffold for the development of cyclooxygenase-2 inhibitors. RSC Adv 2015. [DOI: 10.1039/c5ra08692b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The most active hydroxycinnamic acid derivative, caffeic acid diethyl ester (CA-DE), demonstrated 88.5/30.5% inhibition at 100/20 μM against COX-2 and negligible COX-1 inhibitory effect. CA-DE showed preferred interactions with COX-2 active site.
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Affiliation(s)
- T. Silva
- CIQ/Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | - F. Borges
- CIQ/Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | - N. Edraki
- Medicinal and Natural Products Chemistry Research Center
- Shiraz University of Medical Sciences
- Shiraz
- Iran
| | - M. Alizadeh
- Medicinal and Natural Products Chemistry Research Center
- Shiraz University of Medical Sciences
- Shiraz
- Iran
| | - R. Miri
- Medicinal and Natural Products Chemistry Research Center
- Shiraz University of Medical Sciences
- Shiraz
- Iran
| | - L. Saso
- Department of Physiology and Pharmacology Vittorio Erspamer
- Sapienza University of Rome
- Rome
- Italy
| | - O. Firuzi
- Medicinal and Natural Products Chemistry Research Center
- Shiraz University of Medical Sciences
- Shiraz
- Iran
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Woo KW, Kwon OW, Kim SY, Choi SZ, Son MW, Kim KH, Lee KR. Phenolic derivatives from the rhizomes of Dioscorea nipponica and their anti-neuroinflammatory and neuroprotective activities. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:1164-1170. [PMID: 24973689 DOI: 10.1016/j.jep.2014.06.043] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 06/16/2014] [Accepted: 06/17/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dioscorea nipponica (Dioscoreaceae) have been used as traditional medicines for diabetes, inflammatory and neurodegenerative diseases in Korea. The aim of the study was to isolate the bioactive components from the rhizomes of Dioscorea nipponica and to evaluate their anti-neuroinfalmmatory and neuroprotective activities. MATERIAL AND METHODS The phytochemical investigation of 50% EtOH extract of Dioscorea nipponica using successive column chromatography over silica gel, Sephadex LH-20, and preparative high performance liquid chromatography (HPLC) resulted in the isolation and identification of 17 phenolic derivatives, including four new phenolic compounds (1-4). The structural elucidation of these compounds was based on spectroscopic methods, including 1D and 2D nuclear magnetic resonance (NMR) spectroscopy techniques, mass spectrometry, and optical rotation. All isolated compounds were evaluated for their effects on nerve growth factor (NGF) secretion in a C6 rat glioma cell line and nitric oxide (NO) production in lipopolysaccharide (LPS)-activated BV2 cells. The neurite outgrowth of compound 16 was further evaluated by using mouse neuroblastoma N2a cell lines. RESULTS Three new stilbene derivatives, diosniponol C (1), D (2) and diosniposide A (3) and one new phenanthrene glycoside, diosniposide B (4), together with 13 known compounds were isolated from the rhizomes of Dioscorea nipponica. Of the tested compounds (1-17), phenanthrene, 3,7-dihydroxy-2,4,6-trimethoxy-phenanthrene (16) was the most potent NGF inducer, with 162.35±16.18% stimulation, and strongly reduced NO levels with an IC50 value of 19.56 μM in BV2 microglial cells. Also, it significantly increased neurite outgrowth in N2a cells. CONCLUSIONS This study supports the ethnopharmacological use of Dioscorea nipponica rhizomes as traditional medicine.
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Affiliation(s)
- Kyeong Wan Woo
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, 300 Chonchon-dong, Jangan-ku, Suwon, Gyeonggi-do 440-746, Republic of Korea
| | - Oh Wook Kwon
- Graduate School of East-West Medical Science, Kyung Hee University Global Campus, Yongin 446-701, Republic of Korea
| | - Sun Yeou Kim
- College of Pharmacy, Gachon University, Incheon 406-799, Republic of Korea; Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-799, Republic of Korea; Gachon Medical Research Institute, Gil Medical Center, Inchon 405-760, Republic of Korea
| | - Sang Zin Choi
- Dong-A Pharm Institute, Kiheung, Yongin 449-905, Republic of Korea
| | - Mi Won Son
- Dong-A Pharm Institute, Kiheung, Yongin 449-905, Republic of Korea
| | - Ki Hyun Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, 300 Chonchon-dong, Jangan-ku, Suwon, Gyeonggi-do 440-746, Republic of Korea
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, 300 Chonchon-dong, Jangan-ku, Suwon, Gyeonggi-do 440-746, Republic of Korea.
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Antioxidant and anti-inflammatory properties of taiwanese yam (Dioscorea japonica Thunb. var. pseudojaponica (Hayata) Yamam.) and its reference compounds. Food Chem 2013; 141:1087-96. [DOI: 10.1016/j.foodchem.2013.04.031] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 04/09/2013] [Accepted: 04/11/2013] [Indexed: 11/22/2022]
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Mollica JQ, Cara DC, D’Auriol M, Oliveira VB, Cesar IC, Brandão MG. Anti-inflammatory activity of American yam Dioscorea trifida L.f. in food allergy induced by ovalbumin in mice. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.09.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Mogana R, Teng-Jin K, Wiart C. The Medicinal Timber Canarium patentinervium Miq. (Burseraceae Kunth.) Is an Anti-Inflammatory Bioresource of Dual Inhibitors of Cyclooxygenase (COX) and 5-Lipoxygenase (5-LOX). ISRN BIOTECHNOLOGY 2013; 2013:986361. [PMID: 25937987 PMCID: PMC4393036 DOI: 10.5402/2013/986361] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 08/19/2013] [Indexed: 12/05/2022]
Abstract
The barks and leaves extracts of Canarium patentinervium Miq. (Burseraceae Kunth.) were investigated for cyclooxygenase (COX) and 5-lipoxygenase (LOX) inhibition via in vitro models. The corresponding antioxidative power of the plant extract was also tested via nonenzyme and enzyme in vitro assays. The ethanolic extract of leaves inhibited the enzymatic activity of 5-LOX, COX-1, and COX-2 with IC50 equal to 49.66 ± 0.02 μg/mL, 0.60 ± 0.01 μg/mL, and 1.07 ± 0.01 μg/mL, respectively, with selective COX-2 activity noted in ethanolic extract of barks with COX-1/COX-2 ratio of 1.22. The ethanol extract of barks confronted oxidation in the ABTS, DPPH, and FRAP assay with EC50 values equal to 0.93 ± 0.01 μg/mL, 2.33 ± 0.02 μg/mL, and 67.00 ± 0.32 μg/mL, respectively, while the ethanol extract of leaves confronted oxidation in β-carotene bleaching assay and superoxide dismutase (SOD) assay with EC50 value of 6.04 ± 0.02 μg/mL and IC50 value of 3.05 ± 0.01 μg/mL. The ethanol extract acts as a dual inhibitor of LOX and COX enzymes with potent antioxidant capacity. The clinical significance of these data is quite clear that they support a role for Canarium patentinervium Miq. (Burseraceae Kunth.) as a source of lead compounds in the management of inflammatory diseases.
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Affiliation(s)
- R Mogana
- Center for Natural and Medicinal Products Research, School of Pharmacy, Faculty of Science, University of Nottingham (Malaysia Campus), Jln Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - K Teng-Jin
- Center for Natural and Medicinal Products Research, School of Pharmacy, Faculty of Science, University of Nottingham (Malaysia Campus), Jln Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - C Wiart
- Center for Natural and Medicinal Products Research, School of Pharmacy, Faculty of Science, University of Nottingham (Malaysia Campus), Jln Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
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Kanekar Y, Basha K, Duche S, Gupte R, Kapat A. Regioselective synthesis of phenanthrenes and evaluation of their anti-oxidant based anti-inflammatory potential. Eur J Med Chem 2013; 67:454-63. [DOI: 10.1016/j.ejmech.2013.06.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 06/03/2013] [Accepted: 06/07/2013] [Indexed: 01/17/2023]
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48
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Yang MH, Chin YW, Yoon KD, Kim J. Phenolic compounds with pancreatic lipase inhibitory activity from Korean yam (Dioscorea opposita). J Enzyme Inhib Med Chem 2013; 29:1-6. [DOI: 10.3109/14756366.2012.742517] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Min Hye Yang
- College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University
SeoulSouth Korea
| | - Young-Won Chin
- College of Pharmacy, Dongguk University-Seoul
GoyangSouth Korea
| | - Kee Dong Yoon
- College of Pharmacy, The Catholic University of Korea
Gyeonggi-doSouth Korea
| | - Jinwoong Kim
- College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University
SeoulSouth Korea
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49
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Design and synthesis of niflumic acid-based N-acylhydrazone derivatives as novel anti-inflammatory and analgesic agents. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0235-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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50
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Jin Q, Han XH, Hong SS, Lee C, Choe S, Lee D, Kim Y, Hong JT, Lee MK, Hwang BY. Antioxidative oligostilbenes from Caragana sinica. Bioorg Med Chem Lett 2011; 22:973-6. [PMID: 22209460 DOI: 10.1016/j.bmcl.2011.12.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 11/14/2011] [Accepted: 12/03/2011] [Indexed: 10/14/2022]
Abstract
Two new oligostilbenes, caragasinins A (5) and B (10), and eight known compounds, kobophenol A (1), (+)-α-viniferin (2), (+)-ampelopsin F (3), pallidol (4), (+)-isoampelopsin F (6), miyabenol C (7), carasinaurone (8) and caraphenol B (9) were isolated from the ethylacetate-soluble extract of the roots of Caragana sinica. The structures of the isolates were determined on the basis of extensive spectroscopic analysis including 1D, 2D NMR and HRESI-MS. These compounds were assessed for antioxidant activities. Caragasinin A (5), caraphenol B (9), and caragasinin B (10) showed moderate DPPH scavenging activity and lipid peroxidation inhibitory activities with IC(50) values ranging from 34.7±1.0 to 89.1±2.3μM.
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Affiliation(s)
- Qinghao Jin
- College of Pharmacy, Chungbuk National University, Cheongju 361-763, Republic of Korea
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