1
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Yin Q, Chen G, Mu D, Yang Y, Hao J, Lin B, Zhou D, Hou Y, Li N. Natural anti-neuroinflammatory inhibitors in vitro and in vivo from Aglaia odorata. Bioorg Chem 2024; 147:107335. [PMID: 38583250 DOI: 10.1016/j.bioorg.2024.107335] [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: 03/04/2024] [Revised: 03/24/2024] [Accepted: 04/03/2024] [Indexed: 04/09/2024]
Abstract
Fifty compounds including seven undescribed (1, 13, 18-20, 30, 31) and forty-three known (2-12, 14-17, 21-29, 32-50) ones were isolated from the extract of the twigs and leaves of Aglaia odorata with anti-neuroinflammatory activities. Their structures were determined by a combination of spectral analysis and calculated spectra (ECD and NMR). Among them, compounds 13-25 were found to possess tertiary amide bonds, with compounds 16, 17, and 19-21 existing detectable cis/trans mixtures in 1H NMR spectrum measured in CDCl3. Specifically, the analysis of the cis-trans isomerization equilibrium of tertiary amides in compounds 19-24 was conducted using NMR spectroscopy and quantum chemical calculations. Bioactivity evaluation showed that the cyclopenta[b]benzofuran derivatives (2-6, 8, 10, 12) could inhibit nitric oxide production at the nanomolar concentration (IC50 values ranging from 2 to 100 nM) in lipopolysaccharide-induced BV-2 cells, which were 413-20670 times greater than that of the positive drug (minocycline, IC50 = 41.34 μM). The cyclopenta[bc]benzopyran derivatives (13-16), diterpenoids (30-35), lignan (40), and flavonoids (45, 47, 49, 50) also demonstrated significant inhibitory activities with IC50 values ranging from 1.74 to 38.44 μM. Furthermore, the in vivo anti-neuroinflammatory effect of rocaglaol (12) was evaluated via immunofluorescence, qRT-PCR, and western blot assays in the LPS-treated mice model. The results showed that rocaglaol (12) attenuated the activation of microglia and decreased the mRNA expression of iNOS, TNF-α, IL-1β, and IL-6 in the cortex and hippocampus of mice. The mechanistic study suggested that rocaglaol might inhibit the activation of the NF-κB signaling pathway to relieve the neuroinflammatory response.
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Affiliation(s)
- Qianqian Yin
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Gang Chen
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Danyang Mu
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110167, China
| | - Yuxin Yang
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110167, China
| | - Jinle Hao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bin Lin
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Di Zhou
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yue Hou
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110167, China.
| | - Ning Li
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, China.
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2
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Malú Q, Caldeira GI, Catarino L, Indjai B, da Silva IM, Lima B, Silva O. Ethnomedicinal, Chemical, and Biological Aspects of Lannea Species-A Review. PLANTS (BASEL, SWITZERLAND) 2024; 13:690. [PMID: 38475536 DOI: 10.3390/plants13050690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
Lannea L. genus belongs to the Anacardiaceae botanical family and has long been used in traditional medicinal systems of many countries to manage several health conditions, but no studies have been conducted regarding its usefulness as a source of herbal medicine for human use. A literature review was conducted on scientific papers indexed on B-On, Pubmed, and Web of Science databases. Our results showed that medicinal plants from this botanical genus, mostly constituted by bark and leaf, are often used to approach a wide variety of disease symptoms, like fever, inflammatory states, pain, and gastrointestinal disorders. Phytochemical profiles of Lannea species revealed that phenolic acid derivatives including hydroquinones, phenolic acids, flavonoids, condensed tannins, and triterpenoids are the main classes of secondary metabolites present. Among the total of 165 identified compounds, 57 (34.5%) are flavonoids, mostly quercetin- and myricetin-derived flavonols and catechin and epicatechin flavan-3-ol derivatives also containing a galloyl group. In vitro and in vivo studies allowed the identification of 12 different biological activities, amongst which antimicrobial, antioxidant, anti-inflammatory, and cytotoxic activities were the most frequently cited and observed in in vitro essays. Our review contributes useful information for the scientifical validation of the use of Lannea species in traditional medicinal systems and shows that more research needs to be conducted to better understand the concrete utility of these as herbal medicines.
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Affiliation(s)
- Quintino Malú
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Gonçalo I Caldeira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Luís Catarino
- Centro de Ecologia, Evolução e Alterações Ambientais, (cE3c) & CHANGE-Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Bucar Indjai
- Instituto Nacional de Estudos e Pesquisa, Avenida dos Combatentes da Liberdade da Pátria, Bissau 112, Guinea-Bissau
| | - Isabel Moreira da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Beatriz Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
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3
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Aboul Naser AF, Ahmed YR, Mohammed MA, Aboelmagd M, Aboutabl ME, Hassan EE, Khalil WKB, Hamed MA. Inflammatory mediators, oxidative stress and genetic disturbance in rheumatoid arthritis rats supported by alfalfa seeds metabolomic constituents via blocking interleukin-1receptor. Chem Biodivers 2024; 21:e202301653. [PMID: 38158718 DOI: 10.1002/cbdv.202301653] [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: 10/19/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by aggressive cartilage and bone erosion. This work aimed to evaluate the metabolomic profile of Medicago sativa L. (MS) (alfalfa) seeds and explore its therapeutic impact against RA in rats. Arthritis was induced by complete Freund's adjuvant (CFA) and its severity was assessed by the arthritis index. Treatment with MS seeds butanol fraction and interlukin-1 receptor antagonist (IL-1RA) were evaluated through measuring interlukin-1 receptor (IL-1R) type 1 gene expression, interlukin-1 beta (IL-1β), oxidative stress markers, C-reactive protein (CRP), tumor necrosis factor-alpha (TNF-α), prostaglandin E2 (PGE2), caspase-3 (Cas-3), intracellular adhesion molecule-1 (ICAM-1), DNA fragmentation, and chromosomal damage. Total phenolics/ flavonoids content in the ethyl acetate, butanol fraction and crude extract of MS seeds were estimated. The major identified compounds were Quercetin, Trans-taxifolin, Gallic acid, 7,4'-Dihydroxyflavone, Cinnamic acid, Kudzusaponin SA4, Isorhamnetin 3-O-beta-D-2'',3'',4''-triacetylglucopyranoside, Apigenin, 5,7,4'-Trihydroxy-3'-methoxyflavone, Desmethylxanthohumol, Pantothenic acid, Soyasapogenol E, Malvidin, Helilandin B, Stigmasterol, and Wairol. Treatment with MS seeds butanol fraction and IL-1RA enhanced all the biochemical parameters and the histopathological features of the ankle joint. In conclusion, Trans-taxifolin was isolated for the first time from the genus Medicago. MS butanol fraction seeds extract and IL-1 RA were considered as anti-rheumatic agents.
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Affiliation(s)
- Asmaa F Aboul Naser
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Giza, Egypt
| | - Yomna R Ahmed
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Giza, Egypt
| | - Mona A Mohammed
- Medicinal and Aromatic Plants Research Department, National Research Centre, Dokki, Giza, Egypt
| | - Mohamed Aboelmagd
- Pharmacognosy Department, National Research Centre, Dokki, Giza, Egypt
| | - Mona E Aboutabl
- Medicinal and Pharmaceutical Chemistry Department (Pharmacology Group), National Research Centre, Dokki, Giza, Egypt
| | - Entesar E Hassan
- Department of Genetics and Cytology, National Research Centre, Dokki, Giza, Egypt
| | - Wagdy K B Khalil
- Department of Cell Biology, National Research Centre, Dokki, Giza, Egypt
| | - Manal A Hamed
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Giza, Egypt
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4
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Mohammed HA, Almahmoud SA, El-Ghaly ESM, Khan FA, Emwas AH, Jaremko M, Almulhim F, Khan RA, Ragab EA. Comparative Anticancer Potentials of Taxifolin and Quercetin Methylated Derivatives against HCT-116 Cell Lines: Effects of O-Methylation on Taxifolin and Quercetin as Preliminary Natural Leads. ACS OMEGA 2022; 7:46629-46639. [PMID: 36570308 PMCID: PMC9774329 DOI: 10.1021/acsomega.2c05565] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/17/2022] [Indexed: 06/12/2023]
Abstract
Six flavonoids present in Pulicaria jaubertii, i.e., 7,3'-di-O-methyltaxifolin (1), 3'-O-methyltaxifolin (2), 7-O-methyltaxifolin (3), taxifolin (4), 3-O-methylquercetin (5), and quercetin (6), were tested for their anticancer activities. The methylated flavonoids, compounds 1-3 and 5, were evaluated for their anticancer activities in comparison to the non-methylated parent flavonoids taxifolin (4) and quercetin (6). The structures of the known compounds were reconfirmed by spectral analyses using 1H and 13C NMR data comparisons and HRMS spectrometry. The anticancer activity of these compounds was evaluated in colon cancer, HCT-116, and noncancerous, HEK-293, cell lines using the MTT antiproliferative assays. The caspase-3 and caspase-9 expressions and DAPI (4', 6-diamidino-2-phenylindole) staining assays were used to evaluate the apoptotic activity. All the compounds exhibited antiproliferative activity against the HCT-116 cell line with IC50 values at 33 ± 1.25, 36 ± 2.25, 34 ± 2.15, 32 ± 2.35, 34 ± 2.65, and 36 ± 1.95 μg/mL for compounds 1 to 6, respectively. All the compounds produced a significant reduction in HCT-116 cell line proliferation, except compounds 2 and 6. The viability of the HEK-293 normal cells was found to be significantly higher than the viability of the cancerous cells at all of the tested concentrations, thus suggesting that all the compounds have better inhibitory activity on the cancer cell line. Apoptotic features such as chromatin condensation and nuclear shrinkage were also induced by the compounds. The expression of caspase-3 and caspase-9 genes increased in HCT-116 cell lines after 48 h of treatment, suggesting cell death by the apoptotic pathways. The molecular docking studies showed favorable binding affinity against different pro- and antiapoptotic proteins by these compounds. The docking scores were minimum as compared to the caspase-9, caspase-3, Bcl-xl, and JAK2.
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Affiliation(s)
- Hamdoon A. Mohammed
- Department
of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Qassim 51452, Saudi Arabia
- Department
of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Suliman A. Almahmoud
- Department
of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Qassim 51452, Saudi Arabia
| | - El-Sayed M. El-Ghaly
- Department
of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Firdos Alam Khan
- Department
of Stem Cell Research, Institute for Research and Medical Consultations
(IRMC), Imam Abdulrahman Bin Faisal University, 31441 Dammam, Saudi Arabia
| | - Abdul-Hamid Emwas
- Core
Laboratories, King Abdullah University of
Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
| | - Mariusz Jaremko
- Smart-Health
Initiative (SHI) and Red Sea Research Center (RSRC), Division of Biological
and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 , Saudi Arabia
| | - Fatimah Almulhim
- Smart-Health
Initiative (SHI) and Red Sea Research Center (RSRC), Division of Biological
and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900 , Saudi Arabia
| | - Riaz A. Khan
- Department
of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Qassim 51452, Saudi Arabia
| | - Ehab A. Ragab
- Department
of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
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Crosstalk between xanthine oxidase (XO) inhibiting and cancer chemotherapeutic properties of comestible flavonoids- a comprehensive update. J Nutr Biochem 2022; 110:109147. [PMID: 36049673 DOI: 10.1016/j.jnutbio.2022.109147] [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: 06/03/2021] [Revised: 12/17/2021] [Accepted: 08/10/2022] [Indexed: 01/13/2023]
Abstract
Gout is an inflammatory disease caused by metabolic disorder or genetic inheritance. People throughout the world are strongly dependent on ethnomedicine for the treatment of gout and some receive satisfactory curative treatment. The natural remedies as well as established drugs derived from natural sources or synthetically made exert their action by mechanisms that are closely associated with anticancer treatment mechanisms regarding inhibition of xanthine oxidase, feedback inhibition of de novo purine synthesis, depolymerization and disappearance of microtubule, inhibition of NF-ĸB activation, induction of TRAIL, promotion of apoptosis, and caspase activation and proteasome inhibition. Some anti-gout and anticancer novel compounds interact with same receptors for their action, e.g., colchicine and colchicine analogues. Dietary flavonoids, i.e., chrysin, kaempferol, quercetin, fisetin, pelargonidin, apigenin, luteolin, myricetin, isorhamnetin, phloretinetc etc. have comparable IC50 values with established anti-gout drug and effective against both cancer and gout. Moreover, a noticeable number of newer anticancer compounds have already been isolated from plants that have been using by local traditional healers and herbal practitioners to treat gout. Therefore, the anti-gout plants might have greater potentiality to become selective candidates for screening of newer anticancer leads.
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Liu KD, Yang WQ, Dai MZ, Xu Y, Qin YP, Dong YY, Fu J, Qu J. Phenolic constituents with anti-inflammatory and cytotoxic activities from the rhizomes of Iris domestica. PHYTOCHEMISTRY 2022; 203:113370. [PMID: 35977602 DOI: 10.1016/j.phytochem.2022.113370] [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: 01/14/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Four undescribed flavonoid glucosides (iridins B-C, tectoridin A and ampelopsinin A); one undescribed phenolic glucoside (diplostephioside B); one undescribed phenolic compound (phenanthrenetriol A); and seventeen known compounds were isolated from the rhizomes of Iris domestica. The chemical structures of the undescribed compounds were established by spectroscopic/spectrometric data interpretation using HRESIMS, NMR, and ECD. Tectoridin A, nigricin A and naringenin exhibited anti-inflammatory activities with inhibition rates of 53.71%, 57.68% and 88.71%, respectively, against the NF-κB signaling pathway at a concentration of 10 μM. 4'-O-methylnyasol (10 μM) exhibited 84.91% antiproliferative activity against the K562 human leukemia cell line with an IC50 value of 4.20 μM.
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Affiliation(s)
- Kai-Dong Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Wan-Qi Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Ming-Zhu Dai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Yong Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Yun-Peng Qin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Ying-Ying Dong
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Jiang Fu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Jing Qu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China.
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7
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Cho HM, Zhang M, Park EJ, Lee BW, Park YJ, Kim HW, Pham HTT, Chin YW, Oh WK. Flavonostilbenes Isolated from the Stems of Rhamnoneuron balansae as Potential SIRT1 Activators. JOURNAL OF NATURAL PRODUCTS 2022; 85:70-82. [PMID: 35040315 DOI: 10.1021/acs.jnatprod.1c00689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The cumulative effects of cell damage result in aging, which gradually decreases human function in various aspects and leads to multiple age-related chronic diseases. To overcome the adverse effects of aging, silent mating type information regulation 2 homologue (SIRT1) activators are promising bioactive compounds that mimic calorie restriction to improve quality of life and prevent aging. In this study, 11 new flavonostilbenes (1-11) and three known compounds (12-14) were purified from stems of Rhamnoneuron balansae. The structures of the new compounds were determined using extensive data from spectroscopic methods, including NMR and HRESIMS. Their absolute configurations were deduced by ECD calculations with coupling constant analysis. All of the isolated new compounds (1-11) were evaluated for their effects on SIRT1 deacetylase activity, the NAD+/NADH ratio, and the AMP-activated protein kinase activation level in cell-based assays. The results showed that rhamnoneuronal D (1) exhibits promising biological activity in several in vitro models related to SIRT1 and suggest it is a potential natural-product-based antiaging agent.
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Affiliation(s)
- Hyo-Moon Cho
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Mi Zhang
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Eun-Jin Park
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ba-Wool Lee
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Yeon-Joo Park
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyun-Woo Kim
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ha-Thanh-Tung Pham
- Department of Botany, Hanoi University of Pharmacy, Hanoi 000084, Vietnam
| | - Young-Won Chin
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Won-Keun Oh
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
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8
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Liu C, Lei Y, Li G, Yuan C, Lv Y, Yu S, Shao Y, Dang J. Three new dihydroflavonols with free radical scavenging activity from Ribes himalense Royle ex Decne. Nat Prod Res 2021; 36:5490-5498. [PMID: 34935575 DOI: 10.1080/14786419.2021.2017929] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Ribes himalense Royle ex Decne, a small shrub, is widely used as a Tibetan medicine in Chinese folk. In this study, three novel 1,1-diphenyl-2-picrylhydrazyl inhibitors named Rihimaside A, Rihimaside B, and Rihimaside C, as well as one known 1,1-diphenyl-2-picrylhydrazyl inhibitor, dihydromyricetin, were isolated from the leaves and stems of Ribes himalense Royle ex Decne using online high performance liquid chromatography-1,1-diphenyl-2-picrylhydrazyl activity screening system combined with medium and high-pressure liquid chromatography. All four 1,1-diphenyl-2-picrylhydrazyl inhibitors are dihydroflavonols. The 1,1-diphenyl-2-picrylhydrazyl scavenging activity and IC50 values of three novel 1,1-diphenyl-2-picrylhydrazyl inhibitors were determined using 1,1-diphenyl-2-picrylhydrazyl methods. Rihimaside A, Rihimaside B, and Rihimaside C exhibited IC50 values of 9.58 μg/mL, 12.57 μg/mL and 387 μg/mL, respectively.
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Affiliation(s)
- Chuang Liu
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China.,University of Chinese Academy of Science, Beijing, China
| | - Yuqing Lei
- University of Chinese Academy of Science, Beijing, China
| | - Gang Li
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai, China
| | - Chen Yuan
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai, China
| | - Yue Lv
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai, China
| | - Song Yu
- Department of Medical College, Qinghai University, Xining, China
| | - Yun Shao
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
| | - Jun Dang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
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9
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Mangla B, Kohli K, Rabiu S. Review of Medicinal Uses, Phytochemistry, Pharmacological Properties, Extraction Methods and Toxicology of Lannea microcarpa (African Grapes). CURRENT TRADITIONAL MEDICINE 2021. [DOI: 10.2174/2215083805666190626095609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ethnopharmacological Relevance:
Lannea microcarpa is an African herbal medicinal
plant by pan-African distribution and has huge native medicinal and non-medicinal
applications. The plant is being used traditionally as a medicine for many diseases such as
mouth blisters, rheumatism, dysentery, sore throat, as a dressing on boils, as a cathartic, livestock
feed, diarrhoea, gastroenteritis, malaria, dysentery, infection from bacteria, toothaches,
gastroenteritis, female infertility, in blood pressure, oedema, coughing, cathartic, poisoning,
and burns. It is also used in the manufacture of the cloths termed ‘basilan fini’ widely related
to the concept of healing (medicine applied on cloth).
Aim of the Review:
This review aims to assemble an up-to-date review of the advancement
made in the continuous pharmacological and phytochemical study of Lannea microcarpa
and the consistent commercial and therapeutic application of it. These findings provide
guide to the upcoming research on this plant.
Methods:
The assessment is systematically directed by searching the database of MEDLINE,
PubMed, Springer, BMC, the Web of Knowledge, Google Scholar, ChemSpider and
Science Direct for original research articles and books using related search terms.
Result:
Pharmacological studies verified the capability of this plant as it showed antioxidant,
anti-inflammatory, and antibacterial activities. Bioactive constituents are found to be
present in all parts of the plant. So far, this plant having high antioxidant capabilities, Lannea
microcarpa is composed of many chemical compounds such as vitexin, lipids, proteins
& amino acids, epi-catechin, gallic acid, myricetin, iso-Vitexin, fatty acid, carbohydrates,
and tannins. This plant possesses antioxidant and antimicrobial properties owing to the presence
of polyphenolics & flavonoids constituents. Novel compounds with the potent antiinflammatory
effects such as 4’-methoxy-myricetin 3-O-α-L-rhamnopyranoside, myricetin
3-O-α-L-rhamnopyranoside, and myricetin 3-O-β-D-glucopyranoside among others, have
been identified. Microparticles formulation of Lannea microcarpa was also prepared and
further studies are still going on.
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Affiliation(s)
- Bharti Mangla
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi 110062, India
| | - Kanchan Kohli
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi 110062, India
| | - Saifu Rabiu
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi 110062, India
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Yoon KD, Lee JY, Kim TY, Kang H, Ha KS, Ham TH, Ryu SN, Kang MY, Kim YH, Kwon YI. In Vitro and in Vivo Anti-Hyperglycemic Activities of Taxifolin and Its Derivatives Isolated from Pigmented Rice ( Oryzae sativa L. cv. Superhongmi). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:742-750. [PMID: 31880937 DOI: 10.1021/acs.jafc.9b04962] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Superhongmi is a new rice variety, which was developed for the enrichment of bioactive compounds through cross-breeding three varieties of rice breeds in Korea. The high-performance liquid chromatography coupled with a photodiode array detector quadrupole and tandem time-of-flight mass spectrometry (HPLC/PDA/QTOF-MS) analysis has revealed that superhongmi bran extract contained four taxifolin derivatives as well as cyanidin 3-glucoside. The high-performance countercurrent chromatography (CCC) and reversed-phase HPLC led to the isolation of aforementioned five compounds, and spectroscopic analysis identified cyanidin 3-glucoside (1), along with (2R,3R)-taxifolin 3-O-β-d-glucopyranoside (2), (2R,3R)-4'-O-methyltaxifolin 3-O-β-d-glucopyranoside (a novel compound) (3), (2R,3R)-taxifolin (4), and (2R,3R)-4'-O-methyltaxifolin (5). Compound 2 had the highest rat small intestinal sucrase inhibitory activity (0.54 mM) relevant for potentially managing postprandial hyperglycemia, followed by compound 1 (0.97 mM) and compound 4 (1.74 mM, IC50). The anti-hyperglycemic effect of compound 4 (taxifolin), a main peak in HPLC analysis was investigated using a Sprague-Dawley (SD) rat model. Compared to a control, taxifolin treatment (p < 0.001) reduced significantly after sucrose loading the observed postprandial blood glucose and the maximum blood glucose (Cmax) by 15% (203.60 ± 15.86 to 172.30 ± 12.74). These results indicate that taxifolin derivatives that inhibit the activity of carbohydrate-hydrolyzing enzymes resulting in reduced dietary carbohydrate absorption can potentially be used as a strategy to manage diabetes.
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Affiliation(s)
- Kee Dong Yoon
- College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences , The Catholic University of Korea , Bucheon 14662 , Republic of Korea
| | - Jung-Yun Lee
- Department of Food and Nutrition , Hannam University , Daejeon 34054 , Korea
| | - Tae Yang Kim
- Department of Food and Nutrition , Hannam University , Daejeon 34054 , Korea
| | - Hanna Kang
- Department of Food and Nutrition , Hannam University , Daejeon 34054 , Korea
| | - Kyoung-Soo Ha
- Department of Food and Nutrition , Hannam University , Daejeon 34054 , Korea
| | - Tae-Ho Ham
- Department of Agricultural Science , Korea National Open University , Seoul 03087 , Korea
| | - Su Noh Ryu
- Department of Agricultural Science , Korea National Open University , Seoul 03087 , Korea
| | - Mi-Young Kang
- Department of Food Science and Nutrition , Kyungpook National University , Daegu 41566 , Korea
| | - Young-Ho Kim
- Department of Pharmacy , Choongnam National University , Daejeon 34134 , Korea
| | - Young-In Kwon
- Department of Food and Nutrition , Hannam University , Daejeon 34054 , Korea
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11
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Francioso A, Franke K, Villani C, Mosca L, D'Erme M, Frischbutter S, Brandt W, Sanchez-Lamar A, Wessjohann L. Insights into the Phytochemistry of the Cuban Endemic Medicinal Plant Phyllanthus orbicularis: Fideloside, a Novel Bioactive 8- C-glycosyl 2,3-Dihydroflavonol. Molecules 2019; 24:E2855. [PMID: 31390787 PMCID: PMC6695706 DOI: 10.3390/molecules24152855] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/31/2019] [Accepted: 08/03/2019] [Indexed: 11/21/2022] Open
Abstract
Phyllanthus orbicularis (Phyllanthaceae) is an endemic evergreen tropical plant of Cuba that grows in the western part of the island and is used in traditional medicine as an infusion. The aqueous extract of this plant presents a wide range of pharmacological activitiessuch as antimutagenic, antioxidant and antiviral effects. Given the many beneficial effects and the great interest in the development of new pharmacological products from natural sources, the aim of this work was to investigate the phytochemistry of this species and to elucidate the structure of the main bioactive principles. Besides the presence of several known polyphenols, the major constituent was hitherto not described. The chemical structure of this compound, here named Fideloside, was elucidated by means of HR-ESIMS/MSn, 1D/2D NMR, FT-IR, and ECD as (2R,3R)-(-)-3',4',5,7-tetrahydroxydihydroflavonol-8-C-β-D-glucopyranoside. The compound, as well as the plant aqueous preparations, showed promising bioactive properties, i.e., anti-inflammatory capacity in human explanted monocytes, corroborating future pharmacological use for this new natural C-glycosyl flavanonol.
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Affiliation(s)
- Antonio Francioso
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany.
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, 00185 Roma, Italy.
- Department of Plant Biology, Faculty of Biology, University of Havana, 10 200 La Habana, Cuba.
| | - Katrin Franke
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
| | - Claudio Villani
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, 00185 Roma, Italy
| | - Luciana Mosca
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, 00185 Roma, Italy
| | - Maria D'Erme
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, 00185 Roma, Italy
| | - Stefan Frischbutter
- Department of Dermatology and Allergy, Charité, Universitätsmedizin Berlin, 10117 Berlin, Germany
- German Rheumatism Research Centre, a Leibniz Institute, 10117 Berlin, Germany
| | - Wolfgang Brandt
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
| | - Angel Sanchez-Lamar
- Department of Plant Biology, Faculty of Biology, University of Havana, 10 200 La Habana, Cuba
| | - Ludger Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany.
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Dos Santos CHC, Talpo TC, Motta BP, Kaga AK, Baviera AM, Castro RN, da Silva VC, de Sousa-Junior PT, Wessjohann L, de Carvalho MG. New compounds of Siolmatra brasiliensis and inhibition of in vitro protein glycation damage. Fitoterapia 2018; 133:109-119. [PMID: 30605782 DOI: 10.1016/j.fitote.2018.12.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 12/23/2018] [Accepted: 12/29/2018] [Indexed: 12/12/2022]
Abstract
Twenty compounds were isolated from the hydroethanolic extract of the stems of Siolmatra brasiliensis, five flavonoids, two lignans, one glucosyl phytosterol, seven nor-cucurbitacins, one new phenolic derivative named siolmatrin (1) and four new dammarane-type saponins named siolmatrosides II-V (2-5), the structures of the compounds were assigned by means of 1D and 2D NMR experiments and HRESIMS of the natural compounds and some acetyl derivatives. The effects of the crude hydroethanolic extract (SbExt) and the ethyl acetate fraction (SbEtAc) of Siolmatra brasiliensis stems on the formation of advanced glycation end-products (AGEs) were also investigated. In the in vitro model system of protein glycation using bovine serum albumin (BSA) and glucose, addition of SbExt or SbEtAc inhibited the formation of fluorescent AGEs, in parallel to minor levels of fructosamine (SbEtAc) and markers of tyrosine and tryptophan oxidation (SbExt and SbEtAc). Protein crosslinking, which represents changes of late stages of protein glycation, was reduced in the presence of SbExt and SbEtAc. Siolmatra brasiliensis stems seem to be a promising source of compounds having ability to prevent glycoxidation changes, arising as an interesting option to be studied as a complementary therapy for complications of diabetes.
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Affiliation(s)
- Carlos Henrique Corrêa Dos Santos
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica 23897-000, RJ, Brazil.
| | - Tassiana Cristina Talpo
- Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, UNESP, Araraquara 14800-903, SP, Brazil
| | - Bruno Pereira Motta
- Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, UNESP, Araraquara 14800-903, SP, Brazil
| | - Anderson Kiyoshi Kaga
- Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, UNESP, Araraquara 14800-903, SP, Brazil
| | - Amanda Martins Baviera
- Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, UNESP, Araraquara 14800-903, SP, Brazil.
| | - Rosane Nora Castro
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica 23897-000, RJ, Brazil
| | | | | | - Ludger Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle (Saale) D-06120, Germany
| | - Mário Geraldo de Carvalho
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica 23897-000, RJ, Brazil
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Zhang PM, Wu ZB, Zhang C, Zeng KW, Jiang Y, Tu PF. Two new chromene derivatives from Artemisia songarica. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:943-950. [PMID: 30417661 DOI: 10.1080/10286020.2018.1497017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/02/2018] [Indexed: 06/09/2023]
Abstract
Two new chromene derivatives, songaricachromenes A (1) and B (2), were isolated from Artemisia songarica, along with 10 known compounds (3-12). The structures and stereochemistry of the new compounds were elucidated by analyses of the NMR, MS, and electronic circular dichroism (ECD) data. All the isolates (1-12) were evaluated for their NO inhibitory effects on LPS-stimulated BV-2 microglial cells.
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Affiliation(s)
- Pu-Ming Zhang
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Zhi-Bo Wu
- b Alashan League Institute of Forestry Sand Control , Alashan 750306 , China
| | - Chen Zhang
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Ke-Wu Zeng
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Yong Jiang
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Peng-Fei Tu
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
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Alam MB, Kwon KR, Lee SH, Lee SH. Lannea coromandelica (Houtt.) Merr. Induces Heme Oxygenase 1 (HO-1) Expression and Reduces Oxidative Stress via the p38/c-Jun N-Terminal Kinase-Nuclear Factor Erythroid 2-Related Factor 2 (p38/JNK-NRF2)-Mediated Antioxidant Pathway. Int J Mol Sci 2017; 18:ijms18020266. [PMID: 28146074 PMCID: PMC5343802 DOI: 10.3390/ijms18020266] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 01/22/2017] [Accepted: 01/23/2017] [Indexed: 01/25/2023] Open
Abstract
The leaves of Lannea coromandelica (Houtt.) Merr. are used in the Garo, Pahan, and Teli tribal communities of Bangladesh as a traditional medicinal plant to treat hepatitis, diabetes, ulcers, heart disease, and dysentery. However, there have been limited phytochemical and biological studies on the bark of L. coromandelica. This study aimed to investigate the antioxidant activities of L. coromandelica bark extract (LCBE) and the underlying mechanism using RAW 264.7 cells. The LCBE was analysed by high-pressure liquid chromatography (HPLC) to detect its key polyphenolic compounds. Various in vitro antioxidant assays were performed using RAW 264.7 cells to assess the antioxidant effects of the LCBE and to understand the underlying molecular mechanism. HPLC revealed the presence of gallic acid, (−)-epigallocatechin-3-gallate, catechin, chlorogenic acid, and caffeic acid in the LCBE. The extract showed a very potent capacity to scavenge numerous free radicals through hydrogen atom transfer and/or electron donation and also quenched cellular reactive oxygen species (ROS) generation without showing any toxicity. The LCBE was found to combat the oxidative stress by enhancing the expression, at both transcriptional and translational levels, of primary antioxidant enzymes as well as phase II detoxifying enzymes, especially heme oxygenase 1, through the upregulation of the nuclear factor erythroid 2-related factor 2 (NRF2)-mediated pathway in RAW 264.7 cells via the phosphorylation of p38 kinase and c-Jun N-terminal kinase (JNK). The LCBE exhibited strong antioxidant activities and mitigated the cellular ROS production. These results provide scientific evidence of its potential as an ideal applicant for a cost-effective, readily available, and natural phytochemical, as well as a strategy for preventing diseases associated with oxidative stress and attenuating disease progress.
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Affiliation(s)
- Md Badrul Alam
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu 41566, Korea.
| | - Kyoo-Ri Kwon
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu 41566, Korea.
| | - Seok-Hyun Lee
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu 41566, Korea.
| | - Sang-Han Lee
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu 41566, Korea.
- Food and Bio-Industry Research Institute, Kyungpook National University, Daegu 41566, Korea.
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15
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Berger A, Preinfalk A, Robien W, Brecker L, Valant-Vetschera K, Schinnerl J. New reports on flavonoids, benzoic- and chlorogenic acids as rare features in the Psychotria alliance (Rubiaceae). BIOCHEM SYST ECOL 2016. [DOI: 10.1016/j.bse.2016.02.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Weerapreeyakul N, Junhom C, Barusrux S, Thitimetharoch T. Induction of apoptosis in human hepatocellular carcinoma cells by extracts of Lannea coromandelica (Houtt.) Merr. and Diospyros castanea (Craib) Fletcher. Chin Med 2016; 11:19. [PMID: 27110278 PMCID: PMC4841969 DOI: 10.1186/s13020-016-0091-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 04/16/2016] [Indexed: 01/30/2023] Open
Abstract
Background Herbal plants are a preferred source of anticancer agents. This study aims to screen the anticancer activity of a crude extract of twigs of (a) Bombax anceps Pierre var. anceps (BA); (b) Catunaregam tomentosa (Blume ex DC.) Tirveng. (CT); (c) Erythrophleum succirubrum Gagnep. (ES); (d) Lannea coromandelica (Houtt.) Merr. (LC); and (e) leaves and (f) twigs of Diospyros castanea (Craib) Fletcher (DC). Methods The 50 % ethanol–water extracts were prepared from each plant sample. In vitro anticancer effects of six extracts on the human hepatocellular carcinoma cell line (HepG2) in terms of cytotoxicity were investigated by neutral red assay, apoptosis induction by 4′,6-diamidino-2-phenylindole (DAPI) staining, and DNA fragmentation by agarose gel electrophoresis. Normal Vero cells were tested for comparison and to determine cancer selectivity. Gas chromatography–mass spectrometry analysis was performed to identify the compounds in the extracts. Results The six crude extracts had different cytotoxicities and were classified into three groups based on their IC50 value and selectivity index (SI). DC (twig) crude extract had both a high cytotoxicity and SI toward HepG2 cells comparable to melphalan (P = 0.023). The crude extracts of DC (leaves), LC (twig), and BA (twig) had moderate cytotoxicity and a lower SI. Although all crude plant extracts induced apoptosis in more than 50 % of the DAPI-positive apoptotic HepG2 cells, only DC (twig) and LC (twig) showed laddering in the DNA fragmentation assay. 2-Palmitoylglycerol was the major compound common to both. Pyrogallol and lupeol were the major compounds in DC (twig) crude extract. Hexadecanoic acid and octadecenoic acid were the major compounds in LC (twig) crude extract, which had high toxicity but low selectivity. Conclusion Ethanolic extracts from DC and LC twigs induced apoptosis in the HepG2 cell line. Pyrogallol and lupeol in DC (twig) might be responsible for the cytotoxicity toward the HepG2 cancer cells.
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Affiliation(s)
| | - Cholpajsorn Junhom
- Graduate School, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002 Thailand
| | - Sahapat Barusrux
- Faculty of Associate Medical Sciences, Khon Kaen University, Khon Kaen, 40002 Thailand
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Kang HR, Lee D, Eom HJ, Lee SR, Lee KR, Kang KS, Kim KH. Identification and mechanism of action of renoprotective constituents from peat moss Sphagnum palustre in cisplatin-induced nephrotoxicity. J Funct Foods 2016. [DOI: 10.1016/j.jff.2015.11.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Ragab EA, Raafat M. A new monoterpene glucoside and complete assignments of dihydroflavonols of Pulicaria jaubertii: potential cytotoxic and blood pressure lowering activity. Nat Prod Res 2015; 30:1280-8. [PMID: 26247309 DOI: 10.1080/14786419.2015.1055492] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
One new monoterpene glucoside and five dihydroflavonols were isolated for the first time from the aerial parts of Pulicaria jaubertii and identified as p-menthane-2-O-β-D-glucopyranoside [1], dihydroquercetin (taxifolin) [2], 7,3'-di-O-methyltaxifolin [3], 3'-O-methyltaxifolin [4], 7-O-methyltaxifolin (padmatin) [5] and 7-O-methyl-dihydrokampferol (7-O-methylaromadenderin) [6]. The structures of these compounds were unambiguously assigned on the basis of NMR spectroscopic data ((1)H, (13)C, DEPT, HSQC, HMBC) and MS analysis. 2D-NMR methods required revision of assignments of H-6 and H-8 for dihydroflavonol compounds. Possible cytotoxic activity as well as blood pressure (BP) lowering activity were tested. The alcoholic extract showed cytotoxic activity against prostate carcinoma (PC-3), breast carcinoma (MCF-7) and hepatocellular carcinoma (HepG-2) human cell lines with IC50 19.1, 20.0 and 24.1 μg, respectively. The higher dose levels of the alcoholic extract significantly reduced normal BP of rats in a dose-dependent manner.
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Affiliation(s)
- Ehab A Ragab
- a Faculty of Pharmacy, Pharmacognosy Department , Al-Azhar University , Cairo , Egypt
| | - Mohamed Raafat
- b Faculty of Pharmacy, Pharmacology Department , Umm Al-Qura University , Makkah , Saudi Arabia
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Okoth DA, Koorbanally NA. Cardanols, Long Chain Cyclohexenones and Cyclohexenols from Lannea schimperi (Anacardiaceae). Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Alkenyl cyclohexenones (1a-d), alkenyl cyclohexenols (2a-c and 3b-d) and cardanols (4a-d) were isolated from the stem bark and root of Lannea schimperi. The alkenyl cyclohexenones (1a and 1d) and cardanols (4a and 4d) have side chains which have not been reported previously, in combination with the core skeletal structures. In addition, compounds 2a-c and 3b-d are all new cyclohexenols. Also isolated were the triterpenes, taraxerone and taraxerol, and sitosterol. The suite of compounds isolated (cyclohexenones and cyclohexenols) make up a nice biosynthetic pathway to the cardanols. The 5-[alkenyl]-4,5-dihydroxycyclohex-2-enone mixture (1a-d) exhibited good in vitro cytotoxicity against the Chinese Hamster Ovarian mammalian cell-line. The compounds were identified mainly from GCMS and NMR spectroscopic techniques.
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Affiliation(s)
- Dorothy A. Okoth
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Neil A. Koorbanally
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
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Cabanillas BJ, Le Lamer AC, Olagnier D, Castillo D, Arevalo J, Valadeau C, Coste A, Pipy B, Bourdy G, Sauvain M, Fabre N. Leishmanicidal compounds and potent PPARγ activators from Renealmia thyrsoidea (Ruiz & Pav.) Poepp. & Endl. JOURNAL OF ETHNOPHARMACOLOGY 2014; 157:149-155. [PMID: 25251262 DOI: 10.1016/j.jep.2014.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 09/04/2014] [Accepted: 09/06/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leaves and rhizomes of Renealmia thyrsoidea (Ruiz & Pav.) Poepp. & Endl. traditionally used in the Yanesha pharmacopoeia to treat skin infections such as leishmaniasis ulcers, or to reduce fever were chemically investigated to identify leishmanicidal compounds, as well as PPARγ activators. METHODS Compounds were isolated through a bioassay-guided fractionation and their structures were determined via detailed spectral analysis. The viability of Leishmania amazonensis axenic amastigotes was assessed by the reduction of tetrazolium salt (MTT), the cytotoxicity on macrophage was evaluated using trypan blue dye exclusion method, while the percentage of infected macrophages was determined microscopically in the intracellular macrophage-infected assay. The CD36, mannose receptor (MR) and dectin-1 mRNA expression on human monocytes-derived macrophages was evaluated by quantitative real-time PCR. RESULTS Six sesquiterpenes (1-6), one dihydrobenzofuranone (7) and four flavonoids (8-11) were isolated from the leaves. Alongside, two flavonoids (12-13) and five diarylheptanoids (14-18) were identified in the rhizomes. Leishmanicidal activity against Leishmania amazonensis axenic amastigotes was evaluated for all compounds. Compounds 6, 7, and 11, isolated from the leaves, showed to be the most active derivatives. Diarylheptanoids 14-18 were also screened for their ability to activate PPARγ nuclear receptor in macrophages. Compounds 17 and 18 bearing a Michael acceptor moiety strongly increased the expression of PPARγ target genes such as CD36, Dectin-1 and mannose receptor (MR), thus revealing interesting immunomodulatory properties. CONCLUSIONS Phytochemical investigation of Renealmia thyrsoidea has led to the isolation of leishmanicidal compounds from the leaves and potent PPARγ activators from the rhizomes. These results are in agreement with the traditional uses of the different parts of Renealmia thyrsoidea.
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Affiliation(s)
- Billy Joel Cabanillas
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, Mission IRD Casilla 18-1209, Lima, Peru
| | - Anne-Cécile Le Lamer
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France.
| | - David Olagnier
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France
| | - Denis Castillo
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Avenida Honorio Delgado 430, San Martin de Porres, Lima, Peru
| | - Jorge Arevalo
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Avenida Honorio Delgado 430, San Martin de Porres, Lima, Peru
| | - Céline Valadeau
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, Mission IRD Casilla 18-1209, Lima, Peru
| | - Agnès Coste
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France
| | - Bernard Pipy
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France
| | - Geneviève Bourdy
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, Mission IRD Casilla 18-1209, Lima, Peru
| | - Michel Sauvain
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, Mission IRD Casilla 18-1209, Lima, Peru
| | - Nicolas Fabre
- Université de Toulouse III, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, France; IRD, UMR 152, F-31062 Toulouse Cedex 9, France
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Imam MZ, Moniruzzaman M. Antinociceptive effect of ethanol extract of leaves of Lannea coromandelica. JOURNAL OF ETHNOPHARMACOLOGY 2014; 154:109-115. [PMID: 24661967 DOI: 10.1016/j.jep.2014.03.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 02/12/2014] [Accepted: 03/13/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lannea coromandelica (Houtt.) Merr. is a plant locally called "Jiga", found all over Bangladesh. Leaf of the plant is traditionally used in the treatment of local swellings, pains of body, toothache etc. This study evaluated the antinociceptive effect of the ethanol extract of L. coromandelica leaves (EELC). MATERIALS AND METHODS The antinociceptive activity of the extract (at the doses of 50, 100, and 200 mg/kg) was evaluated by using chemical- and heat-induced pain models such as acetic acid-induced writhing, hot plate, tail immersion, formalin, and glutamate test. To verify the possible involvement of opioid receptor in the central antinociceptive effect of EELC, naloxone was used to antagonize the effect. Besides, the involvements of ATP-sensitive K(+) channel and cGMP pathway were also justified by using glibenclemide and methylene blue. RESULTS EELC demonstrated significant dose-dependent antinociceptive activity in the chemical- and heat-induced nociception in mice models (p<0.05). These findings imply the involvement of both peripheral and central antinociceptive mechanisms. The use of naloxone confirmed the association of opioid receptors in the central antinociceptive effect. EELC also showed the involvements of ATP-sensitive K(+) channel and cGMP pathway for antinociceptive activity. CONCLUSIONS This study reported the antinociceptive activity of the leaf of L. coromandelica and rationalized the traditional use of the leaf in the treatment of different painful conditions.
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Affiliation(s)
- Mohammad Zafar Imam
- Department of Pharmacy, Stamford University Bangladesh, 51, Siddeswari Road, Dhaka 1217, Bangladesh.
| | - Md Moniruzzaman
- Department of Pharmacy, Stamford University Bangladesh, 51, Siddeswari Road, Dhaka 1217, Bangladesh
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Kaur R, Jaiswal ML, Jain V. Protective effect of Lannea coromandelica Houtt. Merrill. against three common pathogens. J Ayurveda Integr Med 2014; 4:224-8. [PMID: 24459389 PMCID: PMC3891178 DOI: 10.4103/0975-9476.123706] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 04/15/2013] [Accepted: 05/19/2013] [Indexed: 11/30/2022] Open
Abstract
Background: Ayurvedic text reports suggested Lannea coromandelica is used in various microbial origin disorders like dysentery, sore eyes and leprosy, genital wounds. Objective: The present study was designed to investigate the antimicrobial effect of L. coromandelica Houtt. Merrill. (Anacardiaceae) on microbes which cause female reproductive tract infection. Materials and Methods: Ethanolic and aqueous bark extract (Ext.) of L. coromandelica were screened against strains of Streptococcus pyogens, Staphylococcus aureus, and Candida albicans. Antimicrobial assay had been done with agar well diffusion method. Results: Ethanolic extracts [100% (16 mg), 75% (12 mg) and 50% (8 mg)] of L. coromandelica exhibited zone of inhibition (ZI) 19.21 mm, 18.45 mm, 16.41 mm and 18.12 mm, 17.35 mm, 16.35 mm against S. aureus and S. pyogens, respectively. However, only 100% and 75% ethanolic extract showed (ZI-19.18 mm, 16.29 mm) activity against C. albicans. Nevertheless, aqueous extract (100%) showed higher antifungal activity (ZI-16.97 mm). Ciprofloxacin and amphotericin B were used as a standard drugs in the present study. Conclusion: The results demonstrated that L. coromandelica Houtt. Merrill. have antibacterial activity against S. pyogens, S. aureus and antifungal property against C. albicans. Our findings corroborate the ethnobotanical use of L. coromandelica in traditional medicine system (Ayurveda) of India.
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Affiliation(s)
- Rupinder Kaur
- Department of Dravyaguna, National Institute of Ayurveda, Jaipur, India
| | - Mohan Lal Jaiswal
- Department of Dravyaguna, National Institute of Ayurveda, Jaipur, India
| | - Vivek Jain
- Department of Pharmacy, Faculty of Science and Technology, Banasthali Vidhyapith, Tonk, Rajasthan, India
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Zhang H, Xu HH, Song ZJ, Chen LY, Wen HJ. Molluscicidal activity of Aglaia duperreana and the constituents of its twigs and leaves. Fitoterapia 2012; 83:1081-6. [DOI: 10.1016/j.fitote.2012.05.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 04/28/2012] [Accepted: 05/06/2012] [Indexed: 11/16/2022]
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Saifudin A, Tanaka K, Kadota S, Tezuka Y. Chemical Constituents of Blumea balsamifera of Indonesia and Their Protein Tyrosine Phosphatase 1B Inhibitory Activity. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A methanol extract of the leaves of Blumea balsamifera (L.) DC. (Asteraceae) afforded a new guaian-type sesquiterpene, epiblumeaene K (1), together with four known guaian-type sesquiterpenes (2–5), three known sesquiterpenes (6–8), and nine known flavonoids (9–17) by a combination of chromatography and preparative TLC techniques. Their structures were elucidated by extensive spectroscopic methods and comparison with the literature data. Among the isolated compounds, a known sesquiterpene, β-caryophyllene 8 R,9 R-oxide (6), exhibited a significant PTP1B inhibitory activity in a dose-dependent manner, with an IC50 value of 25.8μM (5.62μg/mL).
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Affiliation(s)
- Azis Saifudin
- Division of Natural Products Chemistry, Institute of Natural Medicine, University of Toyama, Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Ken Tanaka
- Division of Pharmacognosy, Institute of Natural Medicine, University of Toyama, Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Shigetoshi Kadota
- Division of Natural Products Chemistry, Institute of Natural Medicine, University of Toyama, Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Yasuhiro Tezuka
- Division of Natural Products Chemistry, Institute of Natural Medicine, University of Toyama, Toyama, 2630 Sugitani, Toyama 930-0194, Japan
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Yodsaoue O, Sonprasit J, Karalai C, Ponglimanont C, Tewtrakul S, Chantrapromma S. Diterpenoids and triterpenoids with potential anti-inflammatory activity from the leaves of Aglaia odorata. PHYTOCHEMISTRY 2012; 76:83-91. [PMID: 22321385 DOI: 10.1016/j.phytochem.2012.01.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 12/02/2011] [Accepted: 01/11/2012] [Indexed: 05/31/2023]
Abstract
Chemical investigation of the leaves of the oriental medicinal plant Aglaia odorata resulted in the isolation of five compounds: two dolabellane diterpenoids, two dammarane triterpenoids and a protostane triterpenoid, along with twenty known compounds. Their structures were elucidated on the basis of extensive spectroscopic analysis and by comparison of their NMR spectroscopic data with those reported in the literature. The anti-inflammatory activities of all compounds were evaluated as inhibitory activities against lipopolysaccharide (LPS) induced nitric oxide (NO) production in RAW264.7 cell lines. Eleven compounds possessed potent nitric oxide inhibitory activity with IC(50) values ranging from 2.1 to 14.2 μM, these being better than that of the positive control, indomethacin (IC(50)=14.5 μM). In addition, three compounds exhibited significant activity against PGE(2) release with IC(50) values of 2.6, 16.1 and 23.0 μM.
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Affiliation(s)
- Orapun Yodsaoue
- Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla, Thailand
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Nguyen MTT, Nguyen NT. Xanthine oxidase inhibitors from Vietnamese Blumea balsamifera L. Phytother Res 2012; 26:1178-81. [PMID: 22821854 DOI: 10.1002/ptr.3710] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 10/13/2011] [Accepted: 10/17/2011] [Indexed: 11/07/2022]
Abstract
From the MeOH extract of the aerial part of Blumea balsamifera L., a new dihydroflavonol, (2R,3S)-(-)-4'-O-methyldihydroquercetin (1), together with seven known compounds has been isolated. Their structures were elucidated on the basis of spectroscopic data. Compounds 1-4 and 6-8 displayed significant xanthine oxidase inhibitory activity in a concentration-dependent manner, and compounds 1, 6 and 8 showed more potent inhibitory activity, with IC₅₀ values ranging from 0.23 to 1.91 µM, than that of a positive control allopurinol (IC₅₀ 2.50 µM).
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Affiliation(s)
- Mai Thanh Thi Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, HoChiMinh City, Vietnam.
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Fujiwara M, Yagi N, Miyazawa M. Tyrosinase inhibitory constituents from the bark ofPeltophorum dasyrachis(yellow batai). Nat Prod Res 2011; 25:1540-8. [DOI: 10.1080/14786410903313106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shi SY, Zhang YP, Zhou HH, Huang KL, Jiang XY. Screening and identification of radical scavengers from Neo-Taraxacum siphonanthum by online rapid screening method and nuclear magnetic resonance experiments. J Immunoassay Immunochem 2011; 31:233-49. [PMID: 20623409 DOI: 10.1080/10739149.2010.488616] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An online rapid screening method, the high-performance liquid chromatography (HPLC)-diode array detector (DAD)-radical scavenging detection (RSD)-electrospray ionization (ESI)-mass spectroscopy (MS)/MS system, was developed for the screening and identification of radical scavengers from Neo-Taraxacum siphonanthum, a new species found in China in 1989. For further characterization, the target compounds were isolated by silica column chromatography, preparative high-performance liquid chromatography (HPLC), HSCCC, and Sephadex LH-20 column chromatography and elucidated on the basis of ultraviolet (UV), ESI-MS/MS, and nuclear magnetic resonance (NMR) spectroscopy, as well as the chemical analysis. Eighteen antioxidative polyphenols (5 caffeic acid derivatives and 13 flavonoid derivatives) were characterized from Neo-T. siphonanthum. The distribution of all compounds was discussed in a chemosystematic context, which suggested that the genera Neo-Taraxacum and Taraxacum might relate chemosystematically.
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Affiliation(s)
- Shu Yun Shi
- School of Chemistry and Chemical Engineering, Central South University, Changsha, P. R. China.
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Picerno P, Mencherini T, Della Loggia R, Meloni M, Sanogo R, Aquino RP. An extract of Lannea microcarpa: composition, activity and evaluation of cutaneous irritation in cell cultures and reconstituted human epidermis. J Pharm Pharmacol 2010; 58:981-8. [PMID: 16805959 DOI: 10.1211/jpp.58.7.0014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Lannea microcarpa (Anacardiaceae) is a tropical tree used in African folk medicine and commercial dermopharmaceutical formulations. Fractionation and analysis of its polar extract allowed the identification of 4′-methoxy-myricetin 3-O-α-l-rhamnopyranoside, myricetin 3-O-α-l-rhamnopyranoside, myricetin 3-O-β-d-glucopyranoside, vitexin, isovitexin, gallic acid and epi-catechin, as the major constituents. In-vivo assay (the croton oil ear test in mice) showed that the extract had significant anti-inflammatory effect (ID50 = 900 μg cm2) but ten times lower than that of indometacin (ID50 = 93 μg cm2), the non-steroidal anti-inflammatory drug used as reference. Cytotoxicity and cutaneous irritation of the extract and its constituents were investigated. The crude extract and its major components did not affect cell viability in-vitro either in three different cultures (J774.A1, WEHI-164 and HEK-293) of cells grown in monolayers or in the reconstituted human epidermis (RHE, 3D model), nor did they cause release of pro-inflammatory mediators (IL-1α) or histomorphological modification of RHE.
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Affiliation(s)
- P Picerno
- School of Pharmacy and Master in Cosmetic Science and Technology, University of Salerno, Italy
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Evaluation of lipid peroxidation inhibition and free radical scavenging abilities of 5,6,7-trimethoxy dihydroflavonols. CHINESE CHEM LETT 2009. [DOI: 10.1016/j.cclet.2009.04.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Chen M, Jin HZ, Zhang WD, Yan SK, Shen YH. Chemical constituents of plants from the genus Blumea. Chem Biodivers 2009; 6:809-17. [PMID: 19551723 DOI: 10.1002/cbdv.200800113] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ming Chen
- Department of Chemistry and Bioactivity of Traditional Chinese Medicine, School of Pharmacy, Shanghai Jiaotong University, 800 DongChuan Road, 200240, Shanghai, P. R. China
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Shou QY, Fu RZ, Tan Q, Shen ZW. Geranylated flavonoids from the roots of Campylotropis hirtella and their immunosuppressive activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:6712-6719. [PMID: 19572647 DOI: 10.1021/jf9009894] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In an effort to identify new immunosuppressive agents from natural sources, 12 new geranylated flavonoids, 5,7,4'-trihydroxy-3'-[7-hydroxy-3,7-dimethyl-2(E)-octenyl]isoflavone (1), a racemate of 5,7,2',4'-tetrahydroxy-3'-[7-hydroxy-3,7-dimethyl-2(E)-octenyl]isoflavanone (2), 2''(S)-5,7-dihydroxy-[2''-methyl-2''-(4-methyl-3-pentenyl)pyrano]-5'',6'':3',4'-isoflavone (3), (2''S,3''R,4''S)-5,7,3'',4''-tetrahydroxy[2''-methyl-2''-(4-methyl-3-pentenyl)pyrano]-5'',6'':3',4'-isoflavone (4), a racemate of 3'-geranyl-5,7,2',4'-tetrahydroxyisoflavanone (5), a racemate of 3'-geranyl-4'-methoxy-5,7,2'-trihydroxyisoflavanone (6), 3'-geranyl-5,7,4',5'-tetrahydroxyisoflavone (8), 3'-geranyl-5,7,2',5'-tetrahydroxyisoflavone (9), 3'-geranyl-4'-methoxy-5,7,2'-trihydroxyisoflavone (10), 2(R),3(R)-3'-geranyl-2,3-trans-5,7,4'-trihydroxyflavonol (12), (2R,3R)-6-methyl-3'-geranyl-2,3-trans-5,7,4'-trihydroxyflavonol (13), and 5,7-dihydroxy-4'-O-geranylisoflavone (14), were isolated from the roots of Campylotropis hirtella (Franch.) Schindl. together with three previously described flavonoids. Their structures were elucidated by spectroscopic measurements, including two-dimensional nuclear magnetic resonance (NMR) techniques. The immunosuppressive effects of these compounds were assessed using mitogen-induced splenocyte proliferation, and the cytotoxicity of the compounds was also examined. The IC50 values of the compounds were found to be in the range of 1.49-61.23 microM for T lymphocyte suppression and 1.16-73.07 microM for B lymphocyte suppression. An analysis of their structure-activity relationships revealed that an isoflavonoid carbon skeleton with a C10 substituent at the C3' position was necessary for the activity. As many of the compounds exhibited good immunosuppressive activities, they may be promising as novel immunosuppressive agents.
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Affiliation(s)
- Qing-Yao Shou
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
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Rawat P, Kumar M, Sharan K, Chattopadhyay N, Maurya R. Ulmosides A and B: flavonoid 6-C-glycosides from Ulmus wallichiana, stimulating osteoblast differentiation assessed by alkaline phosphatase. Bioorg Med Chem Lett 2009; 19:4684-7. [PMID: 19596573 DOI: 10.1016/j.bmcl.2009.06.074] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Revised: 06/02/2009] [Accepted: 06/20/2009] [Indexed: 11/26/2022]
Abstract
Chemical investigation of Ulmus wallichiana stem bark resulted in isolation and identification of three new compounds (2S,3S)-(+)-3',4',5,7-tetrahydroxydihydroflavonol-6-C-beta-D-glucopyranoside (1), (2S,3S)-(+)-4',5,7-trihydroxydihydroflavonol-6-C-beta-D-glucopyranoside (3) and 3-C-beta-D-glucopyranoside-2,4,6-trihydroxymethylbenzoate (8), together with five known flavonoid-6-C-glucosides (2, 4-7). Their structures were elucidated using 1D and 2D NMR spectroscopic analysis. The absolute stereochemistry in compounds 1 and 3 were established with the help of CD data analysis and comparison with the literature data analysis. All the isolated compounds (1-8) were assessed for promoting the osteoblast differentiation using primary culture of rat osteoblast as an in vitro system. Compounds 1-3 and 5 significantly increased osteoblast differentiation as assessed by alkaline phosphatase activity.
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Affiliation(s)
- Preeti Rawat
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Lucknow 226 001, India
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Preparation of two sets of 5,6,7-trioxygenated dihydroflavonol derivatives as free radical scavengers and neuronal cell protectors to oxidative damage. Bioorg Med Chem 2009; 17:3414-25. [DOI: 10.1016/j.bmc.2009.03.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Revised: 03/15/2009] [Accepted: 03/18/2009] [Indexed: 01/03/2023]
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Han XH, Hong SS, Jin Q, Li D, Kim HK, Lee J, Kwon SH, Lee D, Lee CK, Lee MK, Hwang BY. Prenylated and benzylated flavonoids from the fruits of Cudrania tricuspidata. JOURNAL OF NATURAL PRODUCTS 2009; 72:164-167. [PMID: 19113968 DOI: 10.1021/np800418j] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Three new prenylated isoflavones, 5,7-dihydroxy-6-(2''-hydroxy-3''-methylbut-3''-enyl)-4'-methoxylisoflavone (1), 5,4'-dihydroxy-6-(3''-methylbut-2''-enyl)-2'''-(4'''-hydroxy-4'''-methylethyl)-3'''-methoxydihydrofurano-[4''',5''';7,8]isoflavone (2), and 5,4'-dihydroxy-8-(3''-methylbut-2''-enyl)-2'''-(4'''-hydroxy-4'''-methylethyl)furano-[4''',5''';6,7]isoflavone (3), a benzylated dihydroflavonol, 5,7,4'-trihydroxy-8-p-hydroxybenzyldihydroflavonol (4), and eight known flavonoids (5-12) were isolated from the fruits of Cudrania tricuspidata. The structures of these compounds were determined on the basis of MS and (1)H and (13)C NMR spectroscopic data, including 2D NMR experiments. Compounds 2, 3, 6, 7, 8, 10, 11, and 12 inhibited LPS-induced nitric oxide production, with IC(50) values of 11.8-41.8 microM.
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Affiliation(s)
- Xiang Hua Han
- College of Pharmacy, Chungbuk National University, Cheongju 361-763, Korea
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Ishibashi M, Ohtsuki T, Hiraka T, Kikuchi H, Koyano T, Kowithayakorn T, Sakai T. Flavonoids from Eupatorium odoratum with Death Receptor 5 Promoter Enhancing Activity. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(f)79] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Pacciaroni ADV, Gette MDLA, Derita M, Ariza-Espinar L, Gil RR, Zacchino SA, Silva GL. Antifungal activity of Heterothalamus alienus metabolites. Phytother Res 2008; 22:524-8. [PMID: 18386258 DOI: 10.1002/ptr.2380] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The chemical study of Heterothalamus alienus gave rutin, spathulenol (1), (1R,7S)-germacra-4(15),5,10(14)-trien-1beta-ol (2), sakuranetin (3), padmatin 3-acetate (4), (2R,3R)-dihydroquercetin-7,3',4'-trimethyl ether (5), (2R,3R)-dihydroquercetin-7,4'-dimethyl ether (6), (2R,3R)-3-acetoxy-5,7,4'-trihydroxyflavanone (7), as the main components of an antifungal extract of the aerial parts of the plant. Compound 2 showed moderate activity, with Epidermophyton floccosum being the most susceptible species (MIC = 100 microg/mL); compound 3 showed the best antifungal behavior having a broad spectrum of action and the lowest MICs. This flavanone along with flavanolol 5 showed very good activity against standardized (MIC = 31.2 microg/mL) as well as clinical isolates of Trichophyton rubrum and T. mentagrophytes (MIC ranges 31.2-62.5 microg/mL and 31.2-125 microg/mL, respectively) and demonstrated not only fungistatic but also fungicide properties. Flavanolol 6 was active against all the dermatophytes tested with MICs of 62.5-250 microg/mL. Rutin, spathulenol (1) and the 3-acetylated flavanones 4 and 7 were inactive or marginally active against the fungal panel.
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Affiliation(s)
- Adriana del V Pacciaroni
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, (5000) Córdoba, Argentina, IMBIV-CONICET
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Border ZM, Marais C, Bezuidenhoudt BCB, Steenkamp JA. Studies Towards the Stereoselective α-Hydroxylation of Flavanones. Biosynthetic Significance. Aust J Chem 2008. [DOI: 10.1071/ch07325] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The enolates of various propiophenones, chromanones, and also analogues of naturally occurring flavanones were stereoselectively hydroxylated at the α-position, by employing commercially available enantiopure oxaziridines, to afford the desired α-hydroxylated target molecules in good to exceptional stereoselectivities and in moderate to good chemical yields. A mechanistic rationale is presented to account for the stereoselectivities achieved. These in vitro results were tentatively related to the stereoselective biosynthesis of enantio-enriched dihydroflavonols while questions were raised about the authenticity of certain natural compounds.
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Kapche GD, Laatsch H, Fotso S, Kouam SF, Wafo P, Ngadjui BT, Abegaz BM. Lanneanol: A new cytotoxic dihydroalkylcyclohexenol and phenolic compounds from Lannea nigritana (Sc. Ell.) Keay. BIOCHEM SYST ECOL 2007. [DOI: 10.1016/j.bse.2007.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Trouillas P, Fagnère C, Lazzaroni R, Calliste C, Marfak A, Duroux JL. A theoretical study of the conformational behavior and electronic structure of taxifolin correlated with the free radical-scavenging activity. Food Chem 2004. [DOI: 10.1016/j.foodchem.2004.02.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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