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Lee FK, Chan NJY, Krishnan P, Datu Abdul Salam DS, Chee XW, Muhamad A, Low YY, Ting KN, Lim KH. Preparation and Preliminary Structure-Activity Relationship Studies of Schwarzinicine A Analogs as Vasorelaxant Agents. JOURNAL OF NATURAL PRODUCTS 2024; 87:675-691. [PMID: 38442031 DOI: 10.1021/acs.jnatprod.3c00707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Schwarzinicines A-D, a series of alkaloids recently discovered from Ficus schwarzii, exhibit pronounced vasorelaxant activity in rat isolated aorta. Building on this finding, a concise synthesis of schwarzinicines A and B has been reported, allowing further investigations into their biological properties. Herein, a preliminary exploration of the chemical space surrounding the structure of schwarzinicine A (1) was carried out aiming to identify structural features that are essential for vasorelaxant activity. A total of 57 analogs were synthesized and tested for vasorelaxant activity in rat isolated aorta. Both efficacy (Emax) and potency (EC50) of these analogs were compared. In addition to identifying structural features that are required for activity or associated with potency enhancement effect, four analogs showed significant potency improvements of up to 40.2-fold when compared to 1. Molecular dynamics simulation of a tetrameric 44-bound transient receptor potential canonical-6 (TRPC6) protein indicated that 44 could potentially form important interactions with the residues Glu509, Asp530, Lys748, Arg758, and Tyr521. These results may serve as a foundation for guiding further structural optimization of the schwarzinicine A scaffold, aiming to discover even more potent analogs.
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Affiliation(s)
- Fong-Kai Lee
- Faculty of Pharmacy and Biomedical Sciences, MAHSA University, 42610 Jenjarom, Selangor, Malaysia
| | | | - Premanand Krishnan
- Foundation in Science, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia
| | | | - Xavier Wezen Chee
- School of Engineering and Science, Swinburne University of Technology Sarawak, 93350 Kuching, Sarawak, Malaysia
| | - Azira Muhamad
- Malaysia Genome Institute, Jalan Bangi, 43000 Kajang, Selangor, Malaysia
| | - Yun-Yee Low
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kang-Nee Ting
- School of Pharmacy, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia
| | - Kuan-Hon Lim
- School of Pharmacy, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia
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2
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Zhou H, Jian Y, Shao Q, Guo F, Zhang M, Wan F, Yang L, Liu Y, Yang L, Li Y, Yang P, Li Z, Li S, Ding W. Development of Sustainable Insecticide Candidates for Protecting Pollinators: Insight into the Bioactivities, Selective Mechanism of Action and QSAR of Natural Coumarin Derivatives against Aphids. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18359-18374. [PMID: 37965968 DOI: 10.1021/acs.jafc.3c03493] [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: 11/16/2023]
Abstract
Plants employ abundant toxic secondary metabolites to withstand insect attack, while pollinators can tolerate some natural defensive compounds. Coumarins, as promising green alternatives to chemical insecticides, possess wide application prospects in the crop protection field. Herein, the bioactivities of 30 natural coumarin derivatives against Aphis gossypii were assessed and revealed that 6-methylcoumarin exhibited potent aphicidal activity against aphids but displayed no toxicity to honeybees. Additionally, using biochemical, bioinformatic, and molecular assays, we confirmed that the action mode of 6-methylcoumarin against aphids was by inhibiting acetylcholinesterase (AChE). Meanwhile, functional assays revealed that the difference in action site, which located in Lys585 in aphid AChE (equivalent to Val548 in honeybee AChE), was the principal reason for 6-methylcoumarin being toxic to aphids but safe to pollinators. This action site was further validated by mutagenesis data, which uncovered how 6-methylcoumarin was unique selective to the aphid over honeybee or mammalian AChE. Furthermore, a 2D-QSAR model was established, revealing that the central structural feature was H3m, which offers guidance for the future design of more potent coumarin compounds. This work provides a sustainable strategy to take advantage of coumarin analogues for pest management while protecting nontarget pollinators.
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Affiliation(s)
- Hong Zhou
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Yufan Jian
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Qingyi Shao
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Fuyou Guo
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Miao Zhang
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Fenglin Wan
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Liang Yang
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Ying Liu
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Li Yang
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Yanhong Li
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Pinglong Yang
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Zongquan Li
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Shili Li
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
| | - Wei Ding
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P.R. China
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Zhou Y, Li Z, Zhang D, Zhang B. Screening of bioactive ingredients of Tsantan Sumtang in ameliorating H9c2 cells injury. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114854. [PMID: 34808301 DOI: 10.1016/j.jep.2021.114854] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tsantan Sumtang (TS), a traditional Tibetan medicine, has been used in the clinic for the treatment of myocardial ischemia (MI) for ages, however, the bioactive ingredients that are responsible for improving MI remain unknown. AIM OF THE STUDY This study investigated the chemical components of TS and their medicinal efficacies at cell levels, in order to expound the bioactive ingredients in TS. MATERIALS AND METHODS First, a response-surface methodology was employed to determine the optimum ethanol reflux extraction process of polyphenols in TS (PTS) due to their close correlation with MI improvement. Second, a serum pharmacochemistry technique was used to analyze the compounds of PTS absorbed into the blood of rats. Third, hypoxia-, H2O2-, and adriamycin (ADM)-induced H9c2 cell injury models were used to investigate the cardioprotective effects of these compounds in vitro. Fourth, protective effects of isovitexin, quercitrin, and isoeugenol on mitochondrial function were further tested. RESULTS The optimum extraction conditions for obtaining PTS were an ethanol concentration of 78.22%, an extraction time of 67.4 min, and a material-liquid ratio of 1:72.60 mL/g. Serum pharmacochemistry analysis detected 21 compounds, of which 11 compounds were always present in the blood within 5 h. Cytotoxicity and the protective effect of 11 compounds in hypoxia-, H2O2-, and ADM-induced H9c2 cell injury models shown that isovitexin, quercitrin, and isoeugenol had almost no cytotoxicity, and they could elevate the survival rate in injured H9c2 cells. Furthermore, isovitexin, quercitrin, and isoeugenol could decrease mitochondrial reactive oxygen species (ROS) releasion, inhibite mitochondrial permeability transition pore (mPTP) opening, ameliorate the change of mitochondrial membrane potential (MMP) to exert mitochondrial protection effect. CONCLUSION Isovitexin, quercitrin, and isoeugenol exhibited cardioprotective effect at cell levles, these three compounds might be the bioactive ingredients in TS. These findings elucidate the pharmacodynamic substances and mechanisms of TS, guiding its clinical use.
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Affiliation(s)
- Yi Zhou
- College of Eco-environmental Engineering, Qinghai University, Xining, 810016, PR China.
| | - Zhanqiang Li
- Research Center for High Altitude Medicine, Qinghai University, Xining, 810016, PR China
| | - Dejun Zhang
- College of Eco-environmental Engineering, Qinghai University, Xining, 810016, PR China
| | - Benyin Zhang
- College of Eco-environmental Engineering, Qinghai University, Xining, 810016, PR China
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Boozari M, Soltani S, Iranshahi M. Biologically active prenylated flavonoids from the genus Sophora and their structure-activity relationship-A review. Phytother Res 2019; 33:546-560. [PMID: 30652369 DOI: 10.1002/ptr.6265] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/26/2018] [Accepted: 11/28/2018] [Indexed: 12/28/2022]
Abstract
The genus Sophora (Fabaceae) has been used in traditional medicine for years. Prenylated flavonoids are one of the constituents of Sophora species that play important roles in their biological properties. Different classes of prenylated flavonoids are produced by Sophora spp. including prenylated flavonol (e.g., sophoflavescenol), prenylated flavanone (e.g., sophoraflavanone G), prenylated flavonostilbene (e.g., alopecurones A and B), and prenylated chalcone (kuraridin). Prenylated flavonoids have a more lipophilic structure, which leads to its high affinity to the cell membranes and enhancement of the biological activity, which includes cytotoxicity, antibacterial, anti-inflammatory, and estrogenic activities. However, it is reported that prenylation decreases the plasma absorption but increases the tissue accumulation. The presence of the prenyl or lavandulyl groups on C8 position of flavonoids plays an important role in the biological activity. It seems that prenylated flavonoids have the potential to be developed as new drugs or supplements for human health.
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Affiliation(s)
- Motahare Boozari
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saba Soltani
- Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Iranshahi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Popłoński J, Turlej E, Sordon S, Tronina T, Bartmańska A, Wietrzyk J, Huszcza E. Synthesis and Antiproliferative Activity of Minor Hops Prenylflavonoids and New Insights on Prenyl Group Cyclization. Molecules 2018; 23:E776. [PMID: 29597299 PMCID: PMC6017146 DOI: 10.3390/molecules23040776] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 03/22/2018] [Accepted: 03/27/2018] [Indexed: 12/22/2022] Open
Abstract
Synthesis of minor prenylflavonoids found in hops and their non-natural derivatives were performed. The antiproliferative activity of the obtained compounds against some human cancer cell lines was investigated. Using xanthohumol isolated from spent hops as a lead compound, a series of minor hop prenylflavonoids and synthetic derivatives were obtained by isomerization, cyclisation, oxidative-cyclisation, oxidation, reduction and demethylation reactions. Three human cancer cell lines-breast (MCF-7), prostate (PC-3) and colon (HT-29)-were used in antiproliferative assays, with cisplatin as a control compound. Five minor hop prenyl flavonoids and nine non-natural derivatives of xanthohumol have been synthetized. Syntheses of xanthohumol K, its dihydro- and tetrahydro-derivatives and 1″,2″,α,β-tetrahydroxanthohumol C were described for the first time. All of the minor hops prenyl flavonoids exhibited strong to moderate antiproliferative activity in vitro. The minor hops flavonoids xanthohumol C and 1″,2″-dihydroxanthohumol K and non-natural 2,3-dehydroisoxanthohumol exhibited the activity comparable to cisplatin. Results described in the article suggest that flavonoids containing chromane- and chromene-like moieties, especially chalcones, are potent antiproliferative agents. The developed new efficient, regioselective cyclisation reaction of the xanthohumol prenyl group to 1″,2″-dihydroxantohumol K may be used in the synthesis of other compounds with the chromane moiety.
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Affiliation(s)
- Jarosław Popłoński
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Eliza Turlej
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland.
| | - Sandra Sordon
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Tomasz Tronina
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Agnieszka Bartmańska
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Joanna Wietrzyk
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland.
| | - Ewa Huszcza
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
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Tsafack BT, Bomgning CLK, Kühlborn J, Fouedjou RT, Ponou BK, Teponno RB, Fotio AL, Barboni L, Opatz T, Nguelefack TB, Tapondjou LA. Protective Effects of Extracts, Isolated Compounds from <i>Desmodium uncinatum</i> and Semi-Synthetic Isovitexin Derivatives against Lipid Peroxidation of Hepatocyte’s Membranes. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/abc.2018.86009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Roco J, Alarcón G, Sierra L, Zampini IC, Ines Isla M, Jerez S. Beneficial effects of hydroalcoholic extract and flavonoids from Zuccagnia punctata in a rabbit model of vascular dysfunction induced by high cholesterol diet. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1934-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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8
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Fusi F, Spiga O, Trezza A, Sgaragli G, Saponara S. The surge of flavonoids as novel, fine regulators of cardiovascular Ca v channels. Eur J Pharmacol 2016; 796:158-174. [PMID: 28012974 DOI: 10.1016/j.ejphar.2016.12.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 12/15/2016] [Accepted: 12/20/2016] [Indexed: 01/28/2023]
Abstract
Ion channels underlie a wide variety of physiological processes that involve rapid changes in cell dynamics, such as cardiac and vascular smooth muscle contraction. Overexpression or dysfunction of these membrane proteins are the basis of many cardiovascular diseases that represent the leading cause of morbidity and mortality for human beings. In the last few years, flavonoids, widely distributed in the plant kingdom, have attracted the interest of many laboratories as an emerging class of fine ion, in particular Cav, channels modulators. Pieces of in vitro evidence for direct as well as indirect effects exerted by various flavonoids on ion channel currents are now accumulating in the scientific literature. This activity may be responsible, at least in part, for the beneficial and protective effects of dietary flavonoids toward cardiovascular diseases highlighted in several epidemiological studies. Here we examine numerous studies aimed at analysing this feature of flavonoids, focusing on the mechanisms that promote their sometimes controversial activities at cardiovascular Cav channels. New methodological approaches, such as molecular modelling and docking to Cav1.2 channel α1c subunit, used to elucidate flavonoids intrinsic mechanism of action, are introduced. Moreover, flavonoid-membrane interaction, bioavailability, and antioxidant activity are taken into account and discussed.
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Affiliation(s)
- Fabio Fusi
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, via A. Moro 2, 53100 Siena, Italy.
| | - Ottavia Spiga
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, via A. Moro 2, 53100 Siena, Italy
| | - Alfonso Trezza
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, via A. Moro 2, 53100 Siena, Italy
| | - Giampietro Sgaragli
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, via A. Moro 2, 53100 Siena, Italy
| | - Simona Saponara
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, via A. Moro 2, 53100 Siena, Italy
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Evaluation of the Inhibitory Effects of Bavachinin and Bavachin on Human Monoamine Oxidases A and B. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:852194. [PMID: 26557867 PMCID: PMC4629031 DOI: 10.1155/2015/852194] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 09/08/2015] [Indexed: 11/17/2022]
Abstract
Monoamine oxidase B inhibitors (MAO-BIs) are used in the early management of Parkinson's disease (PD). Long-term suspected side effects of MAO-B classical inhibitors established the need for safer alternative therapeutic agents. In our study, the flavanone bavachinin (BNN) and its analog bavachin (BVN) found in the seeds of Psoralea corylifolia L. ethanolic extract (PCSEE) were investigated for their human MAO-A and MAO-B (hMAO-A and hMAO-B) inhibition. Both PCSEE and BNN effectively reduced hMAO-B activity more than hMAO-A while BVN had activating effects. BNN showed selective hMAO-B inhibition (IC50 ~ 8.82 μM) more than hMAO-A (IC502009;~ 189.28 μM). BNN in the crude extract was determined by HPLC, also validated by TLC showing a yield of 0.21% PCSEE dry weight. BNN competitively inhibited hMAO-A and hMAO-B, with a lower hMAO-B Ki than hMAO-A Ki by 10.33-fold, and reduced hMAO-B Km/Vmax efficiency ratio to be comparable to the standard selegiline. Molecular docking examination of BNN and BVN predicted an indirect role of BNN C7-methoxy group for its higher affinity, selectivity, and reversibility as an MAO-BI. These findings suggest that BNN, which is known to be a potent PPAR-γ agonist, is a selective and competitive hMAO-B inhibitor and could be used in the management of PD.
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10
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Bertin R, Chen Z, Martínez-Vázquez M, García-Argaéz A, Froldi G. Vasodilation and radical-scavenging activity of imperatorin and selected coumarinic and flavonoid compounds from genus Casimiroa. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2014; 21:586-594. [PMID: 24309287 DOI: 10.1016/j.phymed.2013.10.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 09/20/2013] [Accepted: 10/27/2013] [Indexed: 06/02/2023]
Abstract
Hypertension is a very widespread condition which is not strictly considered as an illness but if not countered, progressively causes damage to all tissues and loss in their functionality. For this reason the find of new antihypertensive agents is prominent and medicinal plants and their derivatives are valuable for the purpose. The genus Casimiroa (Rutaceae) includes plants from Central America and Mexico; among these, Casimiroa edulis Llave et Lex. and Casimiroa pubescens Ramirez are the most relevant species, even for their medicinal uses. The decoction of leaves and seeds is traditionally taken as a tea mainly to lower blood pressure. The object of this research was the study of vascular activity of coumarinic and flavonoid compounds isolated from seeds of Casimiroa spp. in comparison with Casimiroa edulis and Casimiroa pubescens extracts. The phenolic compounds isolated from Casimiroa were herniarin (Her), imperatorin (Imp), 8-geranyloxypsoralen (GOP) and 5,6,2',3',4'-pentamethoxyflavone (PMF). All these compounds induced vasorelaxation on rat arterial tissues although with different effectiveness. To study the cellular mechanisms of the vasorelaxation exhibited by imperatorin, we used selective inhibitors of different receptors and enzymes, such as atropine, pyrilamine, nifedipine, L-NAME and DETC. In a further step of this research, we evaluated the radical-scavenging activity of Casimiroa extracts and isolated compounds by means of DPPH assay. In general, we observed that the scavenging activities increased in a concentration-dependent manner for all substances. The phenolic compounds highlight a synergism of vasodilation and antioxidant activity which may be very useful in the management of cardiovascular diseases. Among the evaluated compounds, imperatorin shows a significant vasorelaxant activity even higher than acetylcholine and similar to nitrite, and also useful antiradical capabilities. All these properties suggest its possible role against hypertension and vasculopathies, even if in vivo studies are needed to determine the actual applications.
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Affiliation(s)
- R Bertin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Largo E. Meneghetti 2, 35131 Padova, Italy
| | - Z Chen
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Largo E. Meneghetti 2, 35131 Padova, Italy
| | - M Martínez-Vázquez
- Instituto de Química, Univesidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, 04510 D.F., Mexico
| | - A García-Argaéz
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Largo E. Meneghetti 2, 35131 Padova, Italy
| | - G Froldi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Largo E. Meneghetti 2, 35131 Padova, Italy.
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Oliferenko PV, Oliferenko AA, Girgis AS, Saleh DO, Srour AM, George RF, Pillai GG, Panda CS, Hall CD, Katritzky AR. Synthesis, Bioassay, and Molecular Field Topology Analysis of Diverse Vasodilatory Heterocycles. J Chem Inf Model 2014; 54:1103-16. [DOI: 10.1021/ci400723m] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Polina V. Oliferenko
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Alexander A. Oliferenko
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Adel S. Girgis
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | | | | | - Riham F. George
- Pharmaceutical
Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Girinath G. Pillai
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Department
of Chemistry, University of Tartu, Ravila 14a, Tartu 50411, Estonia
| | - Chandramukhi S. Panda
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - C. Dennis Hall
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Alan R. Katritzky
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Department
of Chemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Vasorelaxant prenylated flavonoids from the roots of Sophora flavescens. Biosci Biotechnol Biochem 2013; 77:395-7. [PMID: 23391924 DOI: 10.1271/bbb.120739] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Bioassay-guided fractionation of the methanol extract from the root of Sophora flavescens led to the isolation of eight known prenylated flavonoids responsible for the vasorelaxation activity in porcine coronary arteries. Among them, kushenol N and 5-methylsophoraflavanone B strongly induced the relaxation of porcine coronary arteries with respective ED(50) values of 8.6 and 12.4 µM. This activity and the results of a high-performance liquid chromatographic analysis suggest that kushenol N and 5-methylsophoraflavanone B could be active markers in the S. flavescens extract for vasorelaxation activity.
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13
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Zhang D, Zhang J, Fong C, Yao X, Yang M. Herba epimedii flavonoids suppress osteoclastic differentiation and bone resorption by inducing G2/M arrest and apoptosis. Biochimie 2012; 94:2514-22. [DOI: 10.1016/j.biochi.2012.06.033] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 06/29/2012] [Indexed: 01/06/2023]
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