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Nguyen NH, Nguyen HH, Duong TH, Nguyen HT, Vo TS, Mai DT, Thuong HNT, Bui XH, Do THT. Alpha-glucosidase inhibitory cycloartanes from the Vietnamese Combretum quadrangulare. Chem Biodivers 2022; 19:e202200562. [PMID: 35965252 DOI: 10.1002/cbdv.202200562] [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: 06/11/2022] [Accepted: 08/11/2022] [Indexed: 11/11/2022]
Abstract
Leaves of Combretum quadrangulare Kurz showed potent alpha-glucosidase inhibition. Two new cycloartane-type triterpenes, combretic acids D and E were isolated from the bioactive fraction. The chemical structures were determined using NMR and MS methods. Combretic acid D represents for the first cycloartane having a dihydrofuran ring in the side chain. Combretic acids D and E showed significant alpha-glucosidase inhibition, with IC 50 values of 13.9 and 30.7 µM, respectively. Combretic acid D was determined to be a non-competitive type in the kinetic study. The docking study in combination with dynamic simulations of this compound provided the molecular understanding of alpha-glucosidase inhibition.
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Affiliation(s)
- Ngoc Hong Nguyen
- HUTECH University, Cirtect Institute, Ho Chi Minh City, 084, Ho Chi Minh City, VIET NAM
| | - Huu-Hung Nguyen
- Van Lang University: Truong Dai hoc Van Lang, Faculty of Applied Technology, Van Lang University, 084, Ho Chi Minh City, VIET NAM
| | - Thuc-Huy Duong
- Ho Chi Minh City University of Education, Department of Chemistry, An Duong Vuong, 084, Ho Chi Minh City, VIET NAM
| | - Huy Truong Nguyen
- Ton Duc Thang University, Faculty of Pharmacy, Nguyen Huu Tho, 084, Ho Chi Minh City, VIET NAM
| | - Thanh-Sang Vo
- Nguyen Tat Thanh University, NTT Hi-Tech Institute, An Duong Vuong, 084, Ho Chi Minh City, VIET NAM
| | - Dinh-Tri Mai
- Vietnam Academy of Science and Technology, Department of Chemistry, An Duong Vuong, 084, Ho Chi Minh City, VIET NAM
| | - Huyen Nguyen Thi Thuong
- Ho Chi Minh City University of Education, Department of Biology, An Duong Vuong, 084, Ho Chi Minh City, VIET NAM
| | - Xuan-Hao Bui
- Ho Chi Minh City University of Education, Department of Chemistry, An Duong Vuong, 084, Ho Chi Minh City, VIET NAM
| | - Thi-Hong-Tuoi Do
- University of Medicine and Pharmacy Ho Chi Minh City, Faculty of Pharmacy, An Duong Vuong, 084, Ho Chi Minh City, VIET NAM
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Nguyen HH, Bui XH, Tran TMD, Sichaem J, Le TKD, Nguyen NH, Duong TH. Norquandrangularic acid D, a new trinorcycloartane isolated from the leaves of Combretum quadrangulare. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:691-696. [PMID: 34319176 DOI: 10.1080/10286020.2021.1953481] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 07/05/2021] [Indexed: 06/13/2023]
Abstract
Phytochemical investigation on the leaves of Combretum quadrangulare growing in Vietnam afforded a new trinorcycloartane triterpenoid, norquandrangularic acid D (1), along with three known compounds, betulinic acid (2), luteolin (3), and apigenin (4). Their structures were elucidated using spectroscopic methods and comparison was made with reports in the literature. Compounds 1 and 3 were evaluated for α-glucosidase inhibition. Compound 3 showed significant activity, with an IC50 value of 11.39 µM, (acarbose, used as a positive control, had an IC50 of 367 µM).
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Affiliation(s)
- Huu-Hung Nguyen
- Faculty of Technology, Van Lang University, 45 Nguyen Khac Nhu, District 1, Ho Chi Minh City 71013, Vietnam
| | - Xuan-Hao Bui
- Department of Chemistry, University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City 72711, Vietnam
| | - Thi-Minh-Dinh Tran
- Department of Biology, University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City 72711, Vietnam
| | - Jirapast Sichaem
- Research Unit in Natural Products Chemistry and Bioactivities, Faculty of Science and Technology, Thammasat University Lampang Campus, Lampang 52190, Thailand
| | - Thi-Kim-Dung Le
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Ngoc-Hong Nguyen
- CirTech Institute, Ho Chi Minh City University of Technology (HUTECH), 475 A Dien Bien Phu Street, Binh Thanh District, Ho Chi Minh City 700000, Vietnam
| | - Thuc-Huy Duong
- Department of Chemistry, University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City 72711, Vietnam
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Vo TS, Nguyen HH, Nguyen TP, Tran TMD, Bui XH, Dinh MH, Pham NKT, Sichaem J, Dang VS, Nguyen NH, Duong TH. Cycloartanes from leaves of Combretum quadrangulare growing in Vietnam. Nat Prod Res 2022:1-8. [DOI: 10.1080/14786419.2022.2045489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Thanh-Sang Vo
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Huu-Hung Nguyen
- Faculty of Applied Technology, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam
| | - Thi-Phuong Nguyen
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Thi-Minh-Dinh Tran
- Department of Biology, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
| | - Xuan-Hao Bui
- Department of Chemistry, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
| | - Minh-Hiep Dinh
- Department of Agriculture and Rural Development, Ho Chi Minh City, Vietnam
| | | | - Jirapast Sichaem
- Research Unit in Natural Products Chemistry and Bioactivities, Faculty of Science and Technology, Thammasat University Lampang Campus, Lampang, Thailand
| | - Van-Son Dang
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
- Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | | | - Thuc-Huy Duong
- Department of Biology, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
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Two new cycloartanes from the leaves of Combretum quadrangulare growing in Vietnam and their biological activities. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Flavones from Combretum quadrangulare Growing in Vietnam and Their Alpha-Glucosidase Inhibitory Activity. Molecules 2021; 26:molecules26092531. [PMID: 33926133 PMCID: PMC8123651 DOI: 10.3390/molecules26092531] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 04/20/2021] [Accepted: 04/23/2021] [Indexed: 11/28/2022] Open
Abstract
Combretum quadrangulare Kurz is widely used in folk medicine in Eastern Asia and is associated with various ethnopharmacological properties including hepatoprotective, antipyretic, analgesic, antidysenteric, and anthelmintic activities. Previous phytochemical investigations reported the presence of numerous triterpenes (mostly cycloartanes, ursanes, lupanes, and oleananes) along with dozens of flavonoids. However, the extracts of C. quadrangulare and isolated flavonoids have not been evaluated for their alpha-glucosidase inhibition. In the frame of our efforts dedicated to the chemical investigation of Vietnamese medicinal plants and their biological activities, a phytochemical study of the MeOH extract of the leaves of C. quadrangulare using bioactive guided isolation was undertaken. In this paper, the isolation and structure elucidation of twelve known compounds, 5-hydroxy-3,7,4′-trimethoxyflavone (1), ayanin (2), kumatakenin (3), rhamnocitrin (4), ombuin (5), myricetin-3,7,3′,5′-tetramethyl ether (6), gardenin D (7), luteolin (12), apigenin (13), mearnsetin (14), isoorientin (15), and vitexin (16) were reported. Bromination was applied to compounds 2 and 3 to provide four new synthetic analogues 8–11. All isolated and synthesized compounds were evaluated for alpha-glucosidase inhibition and antibacterial activity. Compounds 4 and 5 showed moderate antibacterial activity against methicillin-resistant Staphylococcus aureus while others were inactive. All compounds failed to reveal any activity toward extended spectrum beta-lactamase-producing Escherichia coli. Compounds 2, 4, 6–9, and 11–14 showed good alpha-glucosidase inhibition with IC50 values in the range of 30.5–282.0 µM. The kinetic of enzyme inhibition showed that 8 and 11 were noncompetitive type inhibition against alpha-glucosidase. In silico molecular docking model indicated that compounds 8 and 11 were potential inhibitors against enzyme α-glucosidase.
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HPLC-DAD and UHPLC/QTOF-MS Analysis of Polyphenols in Extracts of the African Species Combretum padoides, C. zeyheri and C. psidioides Related to Their Antimycobacterial Activity. Antibiotics (Basel) 2020; 9:antibiotics9080459. [PMID: 32751268 PMCID: PMC7460068 DOI: 10.3390/antibiotics9080459] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/13/2020] [Accepted: 07/25/2020] [Indexed: 12/26/2022] Open
Abstract
Combretum padoides Engl. & Diels, C. psidioides Welv. and C. zeyheri Sond. are used for the treatment of infections and tuberculosis related symptoms in African traditional medicine. In order to verify these uses, extracts were screened for their growth inhibitory effects against M. smegmatis ATCC 14468. Ultra-high pressure liquid chromatography coupled to quadrupole time-of-flight mass spectrometry (UHPLC/QTOF-MS) and GC-MS were used to investigate the polyphenolic composition in the active extracts. The lowest minimum inhibitory concentration (MIC), 625 µg/mL, was shown by a methanol extract of the stem bark of C. psidioides. A butanol extract of C. psidioides gave large inhibition zone diameters (IZD 21 mm) and inhibited 84% of the mycobacterial growth at 312 µg/mL. Combretastatin B-2 and dihydrostilbene derivatives were present in the methanol extract of C. psidioides, whereas the butanol extract of this species contained punicalagin, corilagin, and sanguiin H-4. Methanol and butanol extracts of the stem bark of C. padoides gave large inhibition zone diameters (IZD 26.5 mm) and MIC values of 1250 and 2500 µg/mL, respectively. C. padoides contained an ellagitannin with a mass identical to punicalagin ([M-H]− 1083.0587) and a corilagin like derivative ([M-H]− 633.0750) as well as ellagic acid arabinoside and methyl ellagic acid xyloside. A butanol extract of the roots of C. zeyheri showed mild antimycobacterial activity and contained a gallotannin at m/z [M-H]− 647.0894 as the main compound along with punicalagin and three unknown ellagitannins at m/z [M-H]− 763.0788, 765.0566, and 817.4212. Our results indicate that the studied species of Combretum contain phenolic and polyphenolic compounds with possible potential as leads for antimycobacterial drugs or as adjuvants for conventional anti-TB drugs.
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Oluyemi WM, Samuel BB, Kaehlig H, Zehl M, Parapini S, D'Alessandro S, Taramelli D, Krenn L. Antiplasmodial activity of triterpenes isolated from the methanolic leaf extract of Combretum racemosum P. Beauv. JOURNAL OF ETHNOPHARMACOLOGY 2020; 247:112203. [PMID: 31472271 DOI: 10.1016/j.jep.2019.112203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/21/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Combretum racemosum showed activity in previous ethnopharmacological investigations of some Combretum species used in malaria treatment in parts of West Africa. AIM OF THE STUDY This study aimed at confirming the antimalarial potential of this plant by an activity-guided isolation of its active principles. MATERIALS AND METHODS A crude methanolic leaf extract of Combretum racemosum and fractions thereof obtained by partition with chloroform and n-butanol were investigated for antiplasmodial activity against chloroquine-sensitive (D10) and chloroquine-resistant (W2) strains of Plasmodium falciparum. Repeated chromatographic separations were conducted on the chloroform fraction to isolate bioactive compounds for further tests on antiplasmodial activity. The characterization of the isolated substances was performed by applying NMR- and MS-techniques (ESI-MS, HR-ESIMS, 1D and 2D NMR). RESULTS The chloroform fraction (D10: IC50 = 33.8 ± 1.5 μg/mL and W2: IC50 = 27.8 ± 2.9 μg/mL) exhibited better antiplasmodial activity than the n-butanol fraction (D10: IC50 = 78.1 ± 7.3 μg/mL and W2: IC50 = 78 ± 15 μg/mL) as well as the methanolic raw extract (D10: IC50 = 64.2 ± 2.7 μg/mL and W2: IC50 = 65.8 ± 14.9 μg/mL). Thus, the focus of the phytochemical investigation was laid on the chloroform fraction, which led to the identification of four ursane-type (19α-hydroxyasiatic acid (1), 6β,23-dihydroxytormentic acid (4), madecassic acid (8), nigaichigoside F1 (10)) and four oleanane-type (arjungenin (2), combregenin (5), terminolic acid (7), arjunglucoside I (11)) triterpenes, as well as abscisic acid (9). Compounds 1 and 2, 4 and 5, 7 and 8 as well as 10 and 11 were isolated as isomeric mixtures in fractions CR-A, CR-C, CR-E and CR-H, respectively. All isolated compounds and mixtures exhibited moderate to low activity, with madecassic acid being most active (D10: IC50 = 28 ± 12 μg/mL and W2: IC50 = 17.2 ± 4.3 μg/mL). CONCLUSION This paper reports for the first time antiplasmodial principles from C. racemosum and thereby gives reason to the traditional use of the plant.
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Affiliation(s)
- Wande M Oluyemi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Nigeria; Department of Pharmacognosy, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.
| | - Babatunde B Samuel
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Nigeria.
| | | | - Martin Zehl
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Austria.
| | - Silvia Parapini
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Università degli Studi di Milano, Milan, Italy; Centro Interuniversitario Ricerca sulla Malaria, Italian Malaria Network, Italy.
| | - Sarah D'Alessandro
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Università degli Studi di Milano, Milan, Italy; Centro Interuniversitario Ricerca sulla Malaria, Italian Malaria Network, Italy.
| | - Donatella Taramelli
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy; Centro Interuniversitario Ricerca sulla Malaria, Italian Malaria Network, Italy.
| | - Liselotte Krenn
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.
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8
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You HM, Zhao JW, Jing YX, Zhang JR, Wang W, Jiang YT, Zuo AX, Fan JT, Zhang LZ, Zhou M, Jiang ZY. Bioactive glycosides from Salacia cochinchinensis. Carbohydr Res 2019; 484:107777. [DOI: 10.1016/j.carres.2019.107777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 07/27/2019] [Accepted: 08/13/2019] [Indexed: 11/17/2022]
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9
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ROSA MARTHA PG, SUSANA GABRIELA EA. Ursane derivatives isolated from leaves of Hylocereus undatus inhibit glycation at multiple stages. Chin J Nat Med 2018; 16:856-865. [DOI: 10.1016/s1875-5364(18)30127-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Indexed: 11/25/2022]
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Chittasupho C, Athikomkulchai S. Nanoparticles of Combretum quadrangulare leaf extract induce cytotoxicity, apoptosis, cell cycle arrest and anti-migration in lung cancer cells. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.04.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Xu GB, Xiao YH, Zhang QY, Zhou M, Liao SG. Hepatoprotective natural triterpenoids. Eur J Med Chem 2018; 145:691-716. [PMID: 29353722 DOI: 10.1016/j.ejmech.2018.01.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 01/02/2018] [Accepted: 01/04/2018] [Indexed: 02/07/2023]
Abstract
Liver diseases are one of the leading causes of death in the world. In spite of tremendous advances in modern drug research, effective and safe hepatoprotective agents are still in urgent demand. Natural products are undoubtedly valuable sources for drug leads. A number of natural triterpenoids were reported to possess pronounced hepatoprotective effects, and triterpenoids have become one of the most important classes of natural products for hepatoprotective agents. However, the significance of natural triterpenoids has been underestimated in the hepatoprotective drug discovery, with only very limited triterpenoids being covered in the reviews of hepatoprotective natural products. In this paper, ca 350 natural triterpenoids with reported hepatoprotective effects in ca 120 references between 1975 and 2016 will be reviewed, and the structure-activity relationships of certain types of natural triterpenoids, if available, will be discussed. Patents are not included.
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Affiliation(s)
- Guo-Bo Xu
- School of Pharmacy/State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China; Key Laboratory of Optimal Utilization of Natural Medicinal Resources, Guizhou Medical University, Guian New District, 550025, Guizhou, China
| | - Yao-Hua Xiao
- School of Pharmacy/State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Qing-Yan Zhang
- School of Pharmacy/State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; Key Laboratory of Optimal Utilization of Natural Medicinal Resources, Guizhou Medical University, Guian New District, 550025, Guizhou, China
| | - Meng Zhou
- School of Pharmacy/State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China; Guizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550004, Guizhou, China
| | - Shang-Gao Liao
- School of Pharmacy/State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; National Engineering Research Center of Miao's Medicines & Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang 550004, Guizhou, China; Key Laboratory of Optimal Utilization of Natural Medicinal Resources, Guizhou Medical University, Guian New District, 550025, Guizhou, China; Guizhou Provincial Key Laboratory of Pharmaceutics, Guiyang 550004, Guizhou, China.
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Dawé A, Talom B, Kapche GDWF, Siddiqui K, Yakai F, Talla E, Shaiq MA, Lubna I, Ngadjui BT. Termiglaucescin, a new polyhydroxy triterpene glucoside from Terminalia glaucescens with antioxidant and anti-inflammatory potential. ACTA ACUST UNITED AC 2017; 72:203-208. [PMID: 27997356 DOI: 10.1515/znc-2016-0178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/22/2016] [Indexed: 11/15/2022]
Abstract
Termiglaucescin (1), a new triterpene glucoside, has been isolated from the ethyl acetate extract of the root bark of Terminalia glaucescens Planch. ex Benth, together with 11 known compounds, β-D-glucopyranosyl 2α,3β,6β-trihydroxy-23-galloylolean-12-en-28-oate (2), arjunglucoside I (3), sericoside (4), arjungenin (5), sericic acid (6), arjunetin (7), chebuloside II (8), 3,3',4-tri-O-methylelagic acid (9), 3,3'-di-O-methylelagic acid (10), β-sitosterol (11) and stigmasterol (12). Compounds 2, 3, 7, 8 and 9 are reported from the plant for the first time. The structures of the isolated compounds were characterized by spectroscopic data interpretations, especially 1D and 2D NMR. The triterpenic isolates showed potent antioxidant and anti-inflammatory activities.
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Affiliation(s)
- Amadou Dawé
- Department of Chemistry, Higher Teachers Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon
| | - Benjamin Talom
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, P.O. Box 454, Ngaoundéré, Cameroon
| | | | - Kauser Siddiqui
- Pharmaceutical Research Center, PCSIR Laboratories Karachi Complex, Karachi 75280, Pakistan
| | - Fawai Yakai
- Department of Chemistry, Higher Teachers Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon
| | - Emmanuel Talla
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, P.O. Box 454, Ngaoundéré, Cameroon
| | - Muhammad Ali Shaiq
- International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Iqbal Lubna
- Pharmaceutical Research Center, PCSIR Laboratories Karachi Complex, Karachi 75280, Pakistan
| | - Bonabenture Tchaleu Ngadjui
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
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Moraes LS, Rohor BZ, Areal LB, Pereira EV, Santos AMC, Facundo VA, Santos ARS, Pires RGW, Martins-Silva C. Medicinal plant Combretum leprosum mart ameliorates motor, biochemical and molecular alterations in a Parkinson's disease model induced by MPTP. JOURNAL OF ETHNOPHARMACOLOGY 2016; 185:68-76. [PMID: 26994817 DOI: 10.1016/j.jep.2016.03.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 03/01/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Combretum leprosum is a popular medicinal plant distributed in north and northeastern regions of Brazil. Many different parts of this plant are used in traditional medicine to treat several inflammatory diseases. Parkinson's disease (PD) is a disorder associated with inflammatory toxic factors and the treatments available provide merely a delay of the neurodegeneration. AIM OF THE STUDY We investigated the potential neuroprotective properties of the C. leprosum ethanolic extract (C.l.EE) in a murine model of PD using the toxin 1-methyl-4 phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP). MATERIALS AND METHODS The mice were split into four groups: V/S (vehicle/saline), E/S (extract/saline), V/M (vehicle/MPTP) and E/M (extract/ MPTP). Mice received MPTP (30mg/kg, i.p.) or vehicle (10ml/kg, i.p.) once a day for 5 consecutive days and vehicle (10ml/kg) or C.l.EE (100mg/kg) orally by intra-gastric gavage (i.g.) during a 14-d period, starting 3 days before the first MPTP injection. All groups were assessed for behavioural impairments (amphetamine-induced locomotor activity and muscle strength), dopamine content in striatum using high performance liquid chromatography (HPLC), tyrosine hydroxylase (TH) and dopamine transporter (DAT) gene expressions using qPCR. RESULTS Animals were injected with d-amphetamine (2mg/kg) and the activity was recorded. Amphetamine-induced hyperlocomotion was observed in all groups; however animals treated with MPTP showed exacerbated hyperlocomotion (approximately 3 fold increase compared to control groups). By contrast, mice treated with MPTP that received C.l.EE exhibited attenuation of the hyperlocomotion and did not differ from control groups. Muscle strength test pointed that C.l.EE strongly avoided muscular deficits caused by MPTP (approximately 2 fold increase compared to V/M group). Dopamine and its metabolites were measured in the striatum. The V/M group presented a dopamine reduction of 80%. On the other hand, the E/M group exhibited an increase in dopamine and its metabolites levels (approximately 3 fold increase compared to V/M group). Tyrosine hydroxylase (TH) and dopamine transporter (DAT) gene expressions were significantly reduced in the V/M group (60%). Conversely, C.l.EE treatment was able to increase the mRNA levels of those genes in the E/M group (approximately 2 fold for TH and DAT). CONCLUSIONS These data show, for the first time, that C. leprosum ethanolic extract prevented motor and molecular changes induced by MPTP, and partially reverted dopamine deficit. Thus, our results demonstrate that C.l.EE has potential for the treatment and prevention of PD.
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Affiliation(s)
- Livia S Moraes
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Bruna Z Rohor
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Lorena B Areal
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Evaldo V Pereira
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Biochemistry and Molecular Biophysics of Proteins, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Alexandre M C Santos
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Biochemistry and Molecular Biophysics of Proteins, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Valdir A Facundo
- Department of Medicine, Federal University of Rondônia-UNIR, Porto Velho, RO, Brazil
| | - Adair R S Santos
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianopolis 88040-900, SC, Brazil
| | - Rita G W Pires
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Cristina Martins-Silva
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil.
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15
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Antibacterial and cytotoxic triterpenoids from the roots of Combretum racemosum. Fitoterapia 2016; 110:89-95. [DOI: 10.1016/j.fitote.2016.03.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 02/29/2016] [Accepted: 03/01/2016] [Indexed: 11/21/2022]
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16
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Pu X, Fan W, Yu S, Li Y, Ma X, Liu L, Ren J, Zhang W. Polysaccharides from Angelica and Astragalus exert hepatoprotective effects against carbon-tetrachloride-induced intoxication in mice. Can J Physiol Pharmacol 2016; 93:39-43. [PMID: 25415237 DOI: 10.1139/cjpp-2014-0331] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
This study aimed to investigate the effects of polysaccharide from Angelica and Astragalus (AAP) on carbon tetrachloride (CCl4) induced liver damage in mice. A total of 120 Kunming mice were randomly distributed among 6 groups comprising (i) the normal control mice, (ii) the CCl4 treatment group, (iii) the bifendate treatment group, (iv) the AAP treatment group, (v) the Angelica sinensis polysaccharide (ASP) treatment group, and (vi) the Astragalus membranaceus polysaccharide (AMP) treatment group. AAP, ASP and AMP were administered to mice treated with CCl4. The activities of alanine transaminase (ALT) and aspartate transaminase (AST) in the serum, and superoxide dismutase (SOD) and malondialdehyde (MDA) in the liver tissues were quantified, as well as the liver index. Hepatic histological changes were observed by staining liver sections with hematoxylin and eosin. Our results show that bifendate, AAP, ASP, and AMP significantly decreased the activities of MDA, AST, and ALT, and enhanced the activity of SOD in CCl4-treated mice. Bifendate, AAP, ASP, and AMP consistently ameliorated the liver injuries induced with CCl4. Notably, the hepatoprotective effect of AAP was stronger than that of bifendate, ASP, or AMP. In addition, AAP alleviated liver inflammation and decreased the liver indexes of mice induced with CCl4. These effects were at least partly due to the antioxidant properties of AAP in scavenging free radicals to ameliorate oxidative stress and to inhibit lipid peroxidation.
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Affiliation(s)
- Xiuying Pu
- a College of Life Science and Engineering, Lanzhou University of Technology, No. 287 Langongping Street, Qilihe District, Lanzhou City 730050, Gansu Province, P.R. China
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17
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Tian J, Wang YG, Ma J, Yang JB, Zhou L, Ji TF, Wang AG, Su YL. Hepatoprotective benzofurans and furanolignans from Gymnema tingens. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2015; 17:268-273. [PMID: 25765093 DOI: 10.1080/10286020.2015.1016002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Two new benzofurans, gymnefuranols A (1) and B (2), together with six known furanolignans (3-8), were isolated from Gymnema tingens. The structures of the new compounds were elucidated by comprehensive analysis of the NMR and HR-MS data. Compounds 1, 2, 6, and 7 showed hepatoprotective activities against D-galactosamine-induced HL-7702 cell damage.
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Affiliation(s)
- Jin Tian
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Chinese Academy of Medical Sciences and Peking Union Medical College, Institute of Material Medica , Beijing 100050 , China
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18
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Wang L, Wu M, Wang J, Jiang J, Chen Y, Li T. A New Chalcone Glycoside from Combretum griffithii. Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-0926-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Bioactivities of the genus Combretum (Combretaceae): a review. Molecules 2012; 17:9142-206. [PMID: 22858840 PMCID: PMC6268318 DOI: 10.3390/molecules17089142] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 07/23/2012] [Accepted: 07/25/2012] [Indexed: 11/16/2022] Open
Abstract
The Combretaceae is a large family of herbs, shrubs and trees, comprising about 20 genera and 600 species with tropical distribution around the globe and centers of diversity in Africa and Asia. Some Combretum species are extensively used in traditional medicine against inflammation, infections, diabetes, malaria, bleeding, diarrhea and digestive disorders and others as a diuretic. The present work is a literature survey of Combretum species that have been evaluated for their ability to exert biological activities. A total number of 36 Combretum species are discussed with regard to plant parts used, component tested and bioassay models. This review is of fundamental importance to promoting studies on Combretum species, thereby contributing to the development of new therapeutic alternatives that may improve the health of people suffering from various health problems.
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20
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Kaweetripob W, Mahidol C, Prachyawarakorn V, Prawat H, Ruchirawat S. 5-formylfurfuryl esters from Duabanga grandiflora. PHYTOCHEMISTRY 2012; 76:78-82. [PMID: 22317905 DOI: 10.1016/j.phytochem.2012.01.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Accepted: 01/11/2012] [Indexed: 05/31/2023]
Abstract
5-Formylfurfuryl esters, duabanganals A-D, together with sixteen known compounds, a known 5-formylfurfuryl ester, latifolinal, eight pentacyclic triterpenes, a benzofuran derivative, an ellagic acid derivative, vanillin, β-sitosterol, β-sitosterol glucoside, 3-hydroxy-4-methoxycinnamaldehyde, and 5-formylfurfurol, were isolated from the stem bark of Duabanga grandiflora. The structures of these compounds were elucidated on the basis of spectroscopic analysis. Several of these metabolites were evaluated for cytotoxic activities against six cancer cell lines.
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Moosophon P, Kanokmedhakul S, Kanokmedhakul K. Diarylpropanes and an arylpropyl quinone from Combretum griffithii. JOURNAL OF NATURAL PRODUCTS 2011; 74:2216-2218. [PMID: 21919533 DOI: 10.1021/np200593d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Three new diarylpropanes (1-3), a new arylpropyl quinone (4), and the known 1-(2-hydroxy-4-methoxyphenyl)-3-(4-hydroxy-3-methoxyphenyl)propane (5) were isolated from a methanol extract of stems of Combretum griffithii. Their structures were elucidated by spectroscopic methods. Compounds 1, 2, 4, and 5 showed cytotoxicity against one or more cancer cell lines (KB, MCF7, and NCI-H187), and compound 5 exhibited activity against Mycobacterium tuberculosis (MIC 3.13 μg/mL).
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Affiliation(s)
- Panawan Moosophon
- Natural Products Research Unit, Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
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Gao J, Shi J, Lu X, Sun C, Pan Y. Differentiation of common diastereoisomeric ursane-type triterpenoids by high-performance liquid chromatography/tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:1349-1355. [PMID: 21503999 DOI: 10.1002/rcm.4978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A rapid and stable method consisting of high-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry was established for the identification and differentiation of common diastereoisomeric ursane-type triterpenoids at the C-3 position. Two characteristic fragment ions, [M-H-H(2) O-CO(2)](-) and [M-H-H(2)O-HCOOH](-) , exhibited significant stereochemical effects and were utilized to distinguish 3-OH epimers. Based on reference standards, the abundance of the fragment ion [M-H-H(2)O-HCOOH](-) in 3β-OH compounds in the MS(3) experiment was dramatically higher compared to [M-H-H(2) O-CO(2)](-); however, for 3α-OH compounds, the product ion [M-H-H(2) O-CO(2)](-) was noted to be higher than [M-H-H(2)O-HCOOH](-). Energy-resolved mass spectrometric experiments were carried out to support the differentiation of these diastereoisomeric triterpenoids at the C-3 position. Using this method, a total of nine ursane-type triterpenoids from a plant crude extract, including four pairs of epimers at the C-3 position, were identified and distinguished rapidly. Furthermore, offline Fourier transform ion cyclotron resonance tandem mass spectrometry was also performed to assign accurate elemental compositions.
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Affiliation(s)
- Jie Gao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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23
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Antifibrotic constituents of Alnus firma on hepatic stellate cells. Bioorg Med Chem Lett 2011; 21:2906-10. [DOI: 10.1016/j.bmcl.2011.03.074] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 03/17/2011] [Accepted: 03/18/2011] [Indexed: 11/20/2022]
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Gao J, Sun CR, Yang JH, Shi JM, Du YG, Zhang YY, Li JH, Wan HT. Evaluation of the hepatoprotective and antioxidant activities of Rubus parvifolius L. J Zhejiang Univ Sci B 2011; 12:135-42. [PMID: 21265045 DOI: 10.1631/jzus.b1000117] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The hepatoprotective and antioxidant activities of the n-butanol extract of Rubus parvifolius L. (RPL), a widely used medicinal plant, were evaluated. Results demonstrated that RPL extract possessed pronounced hepatoprotective effects against carbon tetrachloride (CCl(4))-induced hepatic injury in mice, which was at least partially attributed to its strong antioxidant capacity. Treatment with RPL extract markedly attenuated the increases in serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels caused by CCl(4) intoxication. It also significantly prevented the decrease in superoxide dismutase (SOD) activity and the increase in malondialdehyde (MDA) content of liver tissue. Meanwhile, histopathological changes of hepatic damage were also remarkably ameliorated. Phytochemical analysis based on high-performance liquid chromatography/tandem mass spectrometry (HPLC-MS/MS) revealed the presence of various phenolic compounds, including caffeic acid conjugates, ellagic acid glycosides, and flavonol glycosides, which might be responsible for the hepatoprotective and antioxidant activities of RPL.
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Affiliation(s)
- Jie Gao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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25
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Bisoli E, Garcez WS, Hamerski L, Tieppo C, Garcez FR. Bioactive pentacyclic triterpenes from the stems of Combretum laxum. Molecules 2008; 13:2717-28. [PMID: 18978701 PMCID: PMC6245402 DOI: 10.3390/molecules13112717] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Revised: 10/16/2008] [Accepted: 10/20/2008] [Indexed: 11/24/2022] Open
Abstract
Two new triterpene glucosides, β-d-glucopyranosyl 2α,3β,24-trihydroxyolean-12-en-28-oate and β-d-glucopyranosyl 2α,3β,23,24-tetrahydroxyurs-12-en-28-oate, in addition to nine known compounds belonging to three different triterpene classes (oleanane-, ursane- and lupane-type) have been isolated from the stems of a specimen of Combretum laxum growing in the “Pantanal” of the central-western region of Brazil. Among the known triterpenes, β-d-glucopyranosyl 2α,3β,6β-trihydroxyolean-12-en-28-oate is reported for the first time in the Combretaceae, while bellericoside and asiatic acid are described for the first time in the genus Combretum. The structures of the isolated compounds have been established on the basis of spectral techniques (1D-, 2D-NMR and MS). Their in vitro antifungal activities against standard strains of Candida albicans, C. krusei and Cryptococcus neoformans were also evaluated in this work.
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Affiliation(s)
- Eder Bisoli
- Departamento de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil, 79070-900.
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26
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Chaabi M, Benayache S, Benayache F, N'Gom S, Koné M, Anton R, Weniger B, Lobstein A. Triterpenes and polyphenols from Anogeissus leiocarpus (Combretaceae). BIOCHEM SYST ECOL 2008. [DOI: 10.1016/j.bse.2007.05.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Dongfack MDJ, Van-Dufat HT, Lallemand MC, Wansi JD, Seguin E, Tillequin F, Wandji J. New Triterpenoids from the Stem Barks of Drypetes tessmanniana. Chem Pharm Bull (Tokyo) 2008; 56:1321-3. [DOI: 10.1248/cpb.56.1321] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Marlise Diane Jiofack Dongfack
- Department of Organic Chemistry, Faculty of Science, University of Yaounde-1
- Laboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N° 8638, Faculté des Sciences Biologiques et Pharmaceutiques
| | - Hanh Trinh Van-Dufat
- Laboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N° 8638, Faculté des Sciences Biologiques et Pharmaceutiques
| | - Marie-Christine Lallemand
- Laboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N° 8638, Faculté des Sciences Biologiques et Pharmaceutiques
| | | | | | - François Tillequin
- Laboratoire de Pharmacognosie de l'Université Paris Descartes, UMR/CNRS N° 8638, Faculté des Sciences Biologiques et Pharmaceutiques
| | - Jean Wandji
- Department of Organic Chemistry, Faculty of Science, University of Yaounde-1
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Nasser ALM, Mazzolin LP, Hiruma-Lima CA, Santos LS, Eberlin MN, Souza Brito ARM, Vilegas W. Preparative Droplet Counter-Current Chromatography for the Separation of the New Nor-Seco-Triterpene and Pentacyclic Triterpenoids from Qualea Parviflora. Chromatographia 2006. [DOI: 10.1365/s10337-006-0087-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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Dračínský M, Hybelbauerová S, Sejbal J, Buděšínský M. Preparation and Conformational Study of B-Ring Substituted Lupane Derivatives. ACTA ACUST UNITED AC 2006. [DOI: 10.1135/cccc20061131] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
New lupane-type triterpenoids with 5(6) double bond were prepared using the method of partial demethylation on carbon C-4. Hydroboration of the double bond led to 6α-hydroxy derivative. By the oxidation and following reduction of 6α-hydroxy derivative the 6-oxo and 6β-hydroxy derivatives were prepared. A new method for selective oxidation of secondary hydroxy group in the presence of primary hydroxy group was performed. The conformation of ring A of new lupane-type 3-oxo derivatives with a substituent on ring B was elucidated on the bases of 1H and 13C NMR spectra and molecular modelling.
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30
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Pietrovski EF, Rosa KA, Facundo VA, Rios K, Marques MCA, Santos ARS. Antinociceptive properties of the ethanolic extract and of the triterpene 3β,6β,16β-trihidroxilup-20(29)-ene obtained from the flowers of Combretum leprosum in mice. Pharmacol Biochem Behav 2006; 83:90-9. [PMID: 16458954 DOI: 10.1016/j.pbb.2005.12.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2005] [Revised: 11/28/2005] [Accepted: 12/09/2005] [Indexed: 11/19/2022]
Abstract
The present study examined the antinociceptive effects of the ethanolic extract (EE) and of the triterpene 3beta,6beta,16beta-trihidroxilup-20(29)-ene obtained from the flowers of Combretum leprosum in chemical and thermal behavioural models of pain in mice. The EE (10-1000 mg/kg) given orally (p.o.), 1 h prior to testing, produced dose-dependent inhibition of acetic acid-induced visceral pain, with mean ID50 value of 131.9 mg/kg. In the formalin test, the EE (10-300 mg/kg, p.o.) also caused significant inhibition of both the early (neurogenic pain) and the late (inflammatory pain) phases of formalin-induced licking, however, it was more potent and efficacious in relation to the late phase of the formalin test, with mean ID50 values for the neurogenic and the inflammatory phases of approximately 300 and 88.8 mg/kg, respectively. The EE (10-1000 mg/kg, p.o.) also caused significant and dose-dependent inhibition of capsaicin- and glutamate-induced pain, with mean ID50 values of 160.5 and 38.3 mg/kg, respectively. Furthermore, the triterpene 3beta,6beta,16beta-trihidroxilup-20(29)-ene (1-30 mg/kg), given p.o., 1 h prior to testing, also produced dose-related inhibition of glutamate-induced pain, with a mean ID50 value of 5.6 mg/kg. When assessed in a thermal model of pain, the EE (10-300 mg/kg, p.o.) and fentanyl (100 microg/kg, s.c.) caused a significant and marked increase in the latency response on the hot-plate test (50 degrees C). The antinociception caused by EE (100 mg/kg, p.o.) in the glutamate test was significantly attenuated by intraperitoneal (i.p.) treatment of mice with naloxone (opioid receptor antagonist, 1 mg/kg), pindolol (a 5-HT 1A/1B receptor/beta adrenoceptor antagonist, 1 mg/kg), WAY100635 (a 5-HT 1A receptor antagonist, 0.7 mg/kg) or ketanserin (a 5-HT 2A receptor antagonist, 0.3 mg/kg). In contrast, EE (100 mg/kg, p.o.) antinociception was affected neither by L-arginine (precursor of nitric oxide, 600 mg/kg) nor by ondansetron (a 5-HT3 receptor antagonist, 0.5 mg/kg) i.p. treatment. It was not associated with non-specific effects such as muscle relaxation or sedation. Together, these results indicate that EE produces dose-related antinociception in several models of chemical and thermal pain through mechanisms that involve an interaction with opioid and serotonergic (i.e., through 5-HT 1A/1B and 5-HT 2A receptors) systems.
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Affiliation(s)
- Evelise F Pietrovski
- Departamento de Farmacologia, Centro de Ciências Biológicas, Universidade Federal do Paraná, Curitiba, 88015-420, Pr, Brazil
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31
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Sasaki K, Minowa N, Kuzuhara H, Nishiyama S. Preventive effects of soyasapogenol B derivatives on liver injury in a concanavalin A-induced hepatitis model. Bioorg Med Chem 2005; 13:4900-11. [PMID: 15922602 DOI: 10.1016/j.bmc.2005.04.074] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2005] [Accepted: 04/27/2005] [Indexed: 11/28/2022]
Abstract
To shed light on the structure-activity relationship, various soyasapogenol B derivatives were synthesized and evaluated for preventive effects on liver injury in the concanavalin A (Con A)-induced hepatitis model in mice. Con A injection into mice induces some pathophysiology of human liver disease such as autoimmune or viral hepatitis. Two hydroxyl groups on the A ring of soyasapogenol B are required for amelioration of liver damage. Modification of the C-22 hydroxyl moiety with an acyloxy or alkyloxy group, or removal of the hydroxyl group, resulted in a greatly enhanced percentage of alleviation. Among the series of soyasapogenol B derivatives examined, six compounds exhibited preventive effects on liver damage.
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Affiliation(s)
- Kazue Sasaki
- Medicinal Chemistry Research Laboratory, Pharmaceutical Research Department, Meiji Seika Kaisha, Ltd., 760 Morooka-cho, Yokohama 222-8567, Japan
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Ueda JY, Tezuka Y, Banskota AH, Tran QL, Tran QK, Saiki I, Kadota S. Constituents of the Vietnamese medicinal plant Streptocaulon juventas and their antiproliferative activity against the human HT-1080 fibrosarcoma cell line. JOURNAL OF NATURAL PRODUCTS 2003; 66:1427-1433. [PMID: 14640513 DOI: 10.1021/np030177h] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The methanolic extract of roots of Streptocaulon juventas, having shown strong antiproliferative activity against the highly metastatic human HT-1080 fibrosarcoma cell line, was subjected to activity-guided isolation to yield 16 cardenolides including five new ones, acovenosigenin A 3-O-beta-digitoxopyranoside (1), digitoxigenin gentiobioside (2), digitoxigenin 3-O-[O-beta-glucopyranosyl-(1-->6)-O-beta-glucopyranosyl-(1-->4)-3-O-acetyl-beta-digitoxopyranoside] (3), digitoxigenin 3-O-[O-beta-glucopyranosyl-(1-->6)-O-beta-glucopyranosyl-(1-->4)-O-beta-digitalopyranosyl-(1-->4)-beta-cymaropyranoside] (4), and periplogenin 3-O-(4-O-beta-glucopyranosyl-beta-digitalopyranoside) (5), and two new hemiterpenoids, (4R)-4-hydroxy-3-isopropylpentyl beta-rutinoside (6) and (R)-2-ethyl-3-methylbutyl beta-rutinoside (7), together with two known phenylpropanoids and a known phenylethanoid. The isolated cardenolides strongly inhibited the proliferation of the HT-1080 cell line (IC(50) values, 54-1600 nM).
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Affiliation(s)
- Jun-Ya Ueda
- Institute of Natural Medicine, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama 930-0194, Japan
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33
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Su BN, Kang YH, Pinos RE, Santarsiero BD, Mesecar AD, Soejarto DD, Fong HHS, Pezzuto JM, Kinghorn AD. Isolation and absolute stereochemistry of coussaric acid, a new bioactive triterpenoid from the stems of Coussarea brevicaulis. PHYTOCHEMISTRY 2003; 64:293-302. [PMID: 12946428 DOI: 10.1016/s0031-9422(03)00268-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Coussaric acid (1), a triterpenoid based on an ursane skeleton, and an oleanane-type triterpene acid, 3-epi-spathodic acid (2), as well as four known compounds, barbinervic acid, scutellaric acid, stigmasterol and stigmasterol glucoside, have been isolated from an EtOAc-soluble extract of the stems of Coussarea brevicaulis. The structures of compounds 1 and 2 were elucidated on the basis of spectroscopic investigation, and single-crystal X-ray crystallography was used to confirm the structure of 1. The absolute stereochemistry of 1 was established by chemical transformations and by the Mosher ester procedure. The potential of the isolates and chemical transformation products to induce quinone reductase was evaluated in mouse Hepa lclc7 hepatoma cells.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Crystallography, X-Ray
- Drug Screening Assays, Antitumor
- Enzyme Induction/drug effects
- Liver Neoplasms, Experimental
- Mice
- Models, Molecular
- Molecular Structure
- NAD(P)H Dehydrogenase (Quinone)/metabolism
- Nuclear Magnetic Resonance, Biomolecular
- Plant Stems/chemistry
- Plants, Medicinal/chemistry
- Rubiaceae/chemistry
- Stereoisomerism
- Triterpenes/chemistry
- Triterpenes/isolation & purification
- Triterpenes/pharmacology
- Tumor Cells, Cultured
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Affiliation(s)
- Bao-Ning Su
- Program for Collaborative Research in the Pharmaceutical Sciences and Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
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Ueda JY, Tezuka Y, Banskota AH, Tran QL, Tran QK, Saiki I, Kadota S. Antiproliferative Activity of Cardenolides Isolated from Streptocaulon juventas. Biol Pharm Bull 2003; 26:1431-5. [PMID: 14519950 DOI: 10.1248/bpb.26.1431] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Sixteen cardenolides, two hemiterpenoids, two phenylpropanoids and a phenylethanoid isolated from the roots of Streptocaulon juventas (LOUR.) MERR. were examined for their antiproliferative activity toward three human-derived (HT-1080 fibrosarcoma, lung A549 adenocarcinoma, cervix HeLa adenocarcinoma) and three murine-derived (colon 26-L5 carcinoma, Lewis lung carcinoma, B16-BL6 melanoma) cell lines. The cardenolides selectively and strongly inhibited proliferation of the HT-1080 (IC(50) values, 0.054-1.6 microM) and A549 (IC(50), 0.016-0.65 microM) cell lines. The characteristic morphological changes and ladder-like DNA fragmentation in those cells treated with the cardenolides indicated the antiproliferative activity was due to the induction of apoptosis.
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Affiliation(s)
- Jun-Ya Ueda
- Institute of Natural Medicine, Toyama Medical and Pharmaceutical University, Toyama, Japan
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Ueda JY, Tezuka Y, Banskota AH, Le Tran Q, Tran QK, Harimaya Y, Saiki I, Kadota S. Antiproliferative activity of Vietnamese medicinal plants. Biol Pharm Bull 2002; 25:753-60. [PMID: 12081142 DOI: 10.1248/bpb.25.753] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Methanol, methanol-water (1:1) and water extracts were prepared from seventy-seven Vietnamese medicinal plants and tested for their antiproliferative activities against human HT-1080 fibrosarcoma cells. Among them, fifteen extracts including seven methanol extracts of Caesalpinia sappan, Catharanthus roseus, Coscinium fenestratum, Eurycoma longifolia, Hydnophytum formicarum and Streptocaulon juventas (collected at two areas), six methanol-water (1:1) extracts of Cae. sappan, Cat. roseus, Co. fenestratum, H. formicarum and S. juventas (at two areas), and two water extracts of Cae. sappan and S. juventas exhibited antiproliferative activities in a concentration-dependent manner. Their antiproliferative activities against human cervix HeLa adenocarcinoma, human lung A549 adenocarcinoma, murine colon 26-L5 carcinoma, murine Lewis lung carcinoma (LLC) and murine B16-BL6 melanoma cells were then examined. Co. fenestratum showed selective activity against lung carcinoma and/or lung metastatic cell lines, A549, LLC and B16-BL6, while H. formicarum and S. juventas showed selective activity against human tumor cell lines, HeLa and A549. Characteristic morphological change and DNA fragmentation indicated the antiproliferative activity to be due to the induction of apoptosis.
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Affiliation(s)
- Jun-ya Ueda
- Institute of Natural Medicine, Toyama Medical and Pharmaceutical University, Japan
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