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Wang X, Liu W, Chen S, Gao Y, Tian J, Gao J. Four New Polyprenylated Acylphloroglucinols from Hypericum perforatum L. Molecules 2024; 29:1756. [PMID: 38675576 PMCID: PMC11052217 DOI: 10.3390/molecules29081756] [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: 03/09/2024] [Revised: 03/28/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Hyperforatums A-D (1-4), four new polyprenylated acylphloroglucinols, together with 13 known compounds were isolated and identified from the aerial parts of Hypericum perforatum L. (St. John's wort). Their structures were confirmed with a comprehensive analysis comprising spectroscopic methods, including 1D and 2D NMR, HRESIMS, and electronic circular dichroism (ECD) calculations. Hyperforatum A featured an unusual chromene-1,4-dione bicyclic system, and hyperforatums B and C were two rare monocyclic PPAPs with five-membered furanone cores. Compound 1 exhibited a moderate inhibition effect on NO production in BV-2 microglial cells stimulated by LPS.
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Affiliation(s)
- Xiaoying Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China; (X.W.); (W.L.); (S.C.); (Y.G.)
- Shaanxi Jiahe Phytochem Co., Ltd., Xi’an 710077, China
| | - Wuyang Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China; (X.W.); (W.L.); (S.C.); (Y.G.)
| | - Sheng Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China; (X.W.); (W.L.); (S.C.); (Y.G.)
| | - Yueshan Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China; (X.W.); (W.L.); (S.C.); (Y.G.)
| | - Junmian Tian
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China; (X.W.); (W.L.); (S.C.); (Y.G.)
| | - Jinming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China; (X.W.); (W.L.); (S.C.); (Y.G.)
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Jiang Y, Liu F, Zhang D, Fu X, Chen S, Wei M, Li Z, Lei H, Niu H. Identification of Novel -Glucosidase Inhibitors from Syzygium jambos (L.) Using Spectroscopy and Molecular Docking. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2024; 79:73-82. [PMID: 38006459 DOI: 10.1007/s11130-023-01123-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/01/2023] [Indexed: 11/27/2023]
Abstract
Fruits of Syzygium jambos (L.) are recognized as a "food", exhibiting significant antidiabetic activities. However, the α-glucosidase inhibition of the components from Syzygium jambos (L.) have not yet been investigated. In this study, a total of 14 compounds were isolated from Syzygium jambos (L.) Alston, eight of which showed significant inhibitory effects on α-glucosidase, with IC50 values in the range of 0.011-0.665 mM. Notably, compounds 1-3 (IC50: 0.013, 0.011 and 0.030 mM, respectively) exhibited much stronger activity than acarbose (IC50: 2.329 ± 0.109 mM). The enzyme kinetics study indicated that compound 1 was an uncompetitive inhibitor, and compounds 2-8 were mixed-type inhibitors. Moreover, the interactions between compounds and α-glucosidase were investigated by molecular docking, which further revealed that the number of olefin double bonds and 2-COOH of heptadeca-phenols had a notable effect on the α-glucosidase inhibitory activity. This study demonstrated that Syzygium jambos (L.) fruit might serve as a functional food for the prevention of diabetes mellitus.
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Affiliation(s)
- Yao Jiang
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Feifei Liu
- School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, China
| | - Dan Zhang
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Xiujuan Fu
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Siwei Chen
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Mei Wei
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Zhi Li
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China.
| | - Hui Lei
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
| | - Hong Niu
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
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Mpofana N, Chipangura JK, Paulse M, Yalo M, Gqaleni N, Nxumalo CT, Dlova NC, Hussein AA, Crouch NR. An Investigation into the Acute and Subacute Toxicity of Extracts of Cassipourea flanaganii Stem Bark In Vivo. PLANTS (BASEL, SWITZERLAND) 2023; 12:2281. [PMID: 37375906 DOI: 10.3390/plants12122281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/30/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023]
Abstract
The conventional use of medicinal plants is in part based on the widespread belief that plant crude extracts are non-toxic. In South Africa, traditional preparations of Cassipourea flanaganii used to treat hypermelanosis have accordingly been regarded by many as non-toxic. Whether that is so impacts on the potential of bark extracts to be developed as a commercial drug to treathypermelanosis, given their documented capacity to inhibit tyrosinase activity. Our study investigated the acute and subacute toxicity of the methanol extract of C. flanaganii bark in rats. Wistar rats were randomly assigned into different treatment groups. The rats received a daily oral gavage of crude extract for acute and subacute toxicity tests. Haematological, biomechanical, clinical and histopathology examinations were carried out to evaluate the possible toxicity of C. flanaganii. The results were subjected to the Student's t-test and ANOVA. For both acute and subacute toxicity, there was no statistical difference between the groups. There were no clinical or behavioral signs of toxicity observed in the rats. No treatment-related gross pathology lesions and no histopathology were observed. The findings of this study demonstrate the absence of acute or subacute toxicity after oral treatment with C. flanaganii stem bark extracts in Wistar rats at the levels administered. Chemical profiling of the total extract using LC-MS tentatively identified eleven (11) compounds as the major chemical constituents.
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Affiliation(s)
- Nomakhosi Mpofana
- Dermatology Department, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban 4000, South Africa
- Department of Somatology, Durban University of Technology, Durban 4000, South Africa
| | - John Kudakwashe Chipangura
- Research Animal Facility, Faculty of Health Sciences, University of Cape Town, Cape Town 8000, South Africa
| | - Michael Paulse
- Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Cape Town 8000, South Africa
| | - Masande Yalo
- Department of Chemistry, Cape Peninsula University of Technology, Cape Town 8000, South Africa
| | - Nceba Gqaleni
- Discipline of Traditional Medicine, University of KwaZulu-Natal, Durban 4000, South Africa
- Faculty of Health Sciences, Durban University of Technology, Durban 4000, South Africa
| | | | - Ncoza Cordelia Dlova
- Dermatology Department, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Ahmed A Hussein
- Department of Chemistry, Cape Peninsula University of Technology, Cape Town 8000, South Africa
| | - Neil R Crouch
- Biodiversity Research and Monitoring Directorate, South African National Biodiversity Institute, P.O. Box 52099, Berea Road, Durban 4007, South Africa
- School of Chemistry & Physics, University of KwaZulu-Natal, Durban 4041, South Africa
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Wang J, Sun J, Jin L, Huang Y, Wang M, Jin M, Diao S, Zhou W, Li G. Four new terpenoids and other metabolites with potential anti-complementary activities from the aerial parts of Dracocephalum moldavica (Lamiaceae). Nat Prod Res 2022:1-9. [PMID: 35067130 DOI: 10.1080/14786419.2022.2030329] [Citation(s) in RCA: 2] [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
In the course of our continuing search for biologically active compounds from medicinal herbs, four undescribed terpenoids including one monoterpenoid glycoside, (1 R, 3S, 4S, 5 R)-(-)-1,8-epoxy-p-menthan-5-ethoxycarbonyl-3-O-β-D-glucopyranoside (1), one iridoid glycoside, 3'-O-β-D-glucopyranosyl-melampyroside (2), one sesquiterpene, 1-(2-methylbutanol)-2-pentyl-1,3-cyclohexadiene (3), and one triterpenoid, 28-nor-3β,18β-dihydroxyurs-12-ene (4), together with nine known terpenoids (5-13) were isolated from the dried aerial parts of Dracocephalum moldavica (Lamiaceae). Their chemical structures were elucidated by detailed spectroscopy (1 D and 2 D NMR), HRESIMS data analysis and acid hydrolysis. Among them, compounds 9 and 10 were isolated from the family Lamiaceae, compounds 5, 6 and 11-13 were identified from the genus Dracocephalum and compounds 7 and 8 were reported from the D. moldavica for the first time. The biological evaluation of anti-complementary activity revealed that some compounds, 4, 6 and 12 exhibited anti-complementary activity with CH50 and AP50 values ranging from 0.67-1.43 and 1.12-1.55 mM, respectively.
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Affiliation(s)
- Jiaming Wang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Jinfeng Sun
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Long Jin
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Yanyan Huang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Mengjie Wang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Mei Jin
- Department of pharmacy, Yanbian University Hospital, Yanji, P.R. China
| | - Shengbao Diao
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Wei Zhou
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Gao Li
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
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Langat MK, Dlova NC, Mulcahy-Ryan LE, Schwikkard SL, Opara EI, Crouch NR, Hiles JD, Mulholland DA. The effect of isolates from Cassipourea flanaganii (Schinz) alston, a plant used as a skin lightning agent, on melanin production and tyrosinase inhibition. JOURNAL OF ETHNOPHARMACOLOGY 2021; 264:113272. [PMID: 32810622 DOI: 10.1016/j.jep.2020.113272] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/19/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Zulu and Xhosa people of South Africa use the stem bark of Cassipourea flanaganii as a skin-lightning cosmetic. AIM OF THE STUDY To isolate and identify compounds responsible for the skin lightning properties from the stem bark of Cassipourea flanaganii and to evaluate their cytotoxicity towards skin cells. MATERIALS AND METHODS Extracts from the stem bark of Cassipourea flanaganii were isolated using chromatographic methods and structures were determined using NMR, IR and MS analysis. The tyrosinase inhibitory activity and the ability to inhibit the production of melanin were determined using human primary epidermal melanocyte cells. Cytoxicity was established using the same melanocytes and a neutral red assay. RESULTS One previously undescribed compound, ent-atis-16-en-19-al (1) along with the known ent-atis-16-en-19-oic acid (2), ent-atis-16-en-19-ol (3), ent-kaur-16-en-19-oic acid (4), ent-kaur-16-en-19-al (5), ent-manoyl oxide (6), guinesine A (7), guinesine B (8), guinesine C (9), lichenxanthone (10), 2,4-dihydroxy-3,6-dimethyl benzoic acid methyl ester (11), lynoside (12), lupeol (13), β-amyrin (14), docosyl ferulate (15), stigmasterol, sitosterol and sitosterol-O-glucoside were isolated in this investigation. An impure fraction containing compound 3 was acetylated to obtain 19-acetoxy-ent-atis-16-ene (3a). Compounds 10 and 11 are usually isolated from lichen, hence they are possible contaminants of lichen harvested with the bark. Compounds 1, 3a, 5-14 were not significantly cytotoxic to the primary epidermal melanocyte cells (P > 0.05) when compared to the negative and positive controls (DMSO, 0.1% and hydrogen peroxide, 30 wt% in water). Inhibition of tyrosinase was significantly greater with respect to the negative control (P < 0.001) for compounds 3a, 5-8 and 9-10 at 10 μM and for compounds 5-8 and 9-10 at 100 μM. Compared to hydroquinone (the positive control) at 10 μM, the level of inhibition was comparable or to that of compounds 3a, 5, 6, and 8-10 at 10 μM, with 9 and 10 showing a greater level of inhibition. Inhibition of melanin was both concentration and time dependent for all compounds tested with higher melanin content at 24 h compared to 48 h s and at 10 mM compared to100 mM at both time points; melanin content was significantly lower for hydroquinone at both time points and concentrations. CONCLUSIONS Compounds 1, 5-14, isolated from Cassipourea flanaganii and the derivative 3a showed low cytotoxicity. All compounds had a clear time and concentration dependent effect on melanin content which did not appear to be dependent on their inhibition of tyrosinase.
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Affiliation(s)
- Moses K Langat
- Jodrell Laboratory, Natural Capital and Plant Health Department, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, United Kingdom; Natural Products Research Group, Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, United Kingdom; School of Chemistry and Physics, University of KwaZulu-Natal, Durban, 4041, South Africa.
| | - Ncoza C Dlova
- Department of Dermatology, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Private Bag X 7, Congella, 4013, Durban, South Africa
| | - Lauren E Mulcahy-Ryan
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, London, Kingston, KT1 2EE, United Kingdom
| | - Sianne L Schwikkard
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, London, Kingston, KT1 2EE, United Kingdom
| | - Elizabeth I Opara
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, London, Kingston, KT1 2EE, United Kingdom
| | - Neil R Crouch
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, 4041, South Africa; Biodiversity Research, Monitoring and Assessment, South African National Biodiversity Institute, PO Box 52099, Berea Road, 4007, Durban, South Africa
| | - Jacob D Hiles
- Natural Products Research Group, Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, United Kingdom; School of Life Sciences, Pharmacy and Chemistry, Kingston University, London, Kingston, KT1 2EE, United Kingdom
| | - Dulcie A Mulholland
- Natural Products Research Group, Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, United Kingdom; School of Chemistry and Physics, University of KwaZulu-Natal, Durban, 4041, South Africa
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Ye C, Jin M, Li R, Sun J, Wang R, Wang J, Li S, Zhou W, Li G. Phytochemical and chemotaxonomic study on the leaves of Rhododendron dauricum L. BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Le TH, Van Do TN, Nguyen HX, Dang PH, Nguyen NT, Nguyen MTT. A new phenylheptanoid from the leaves ofGnetum gnemonL. Nat Prod Res 2020; 35:3999-4004. [DOI: 10.1080/14786419.2020.1753055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Tho Huu Le
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Truong Nhat Van Do
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Hai Xuan Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Phu Hoang Dang
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Nhan Trung Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
| | - Mai Thanh Thi Nguyen
- Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Cancer Research Laboratory, University of Science, Ho Chi Minh City, Vietnam
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Zhang Y, Kong J, Zhang JH, Wang L, Zhang W, Liu B, Jiang YY. Chemical Constituents and Pharmacological Activities of Family Flacourtiaceae: A Class of Important Phytomedicine. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2020; 48:287-328. [PMID: 32160758 DOI: 10.1142/s0192415x20500159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Flacourtiaceae plants are widely used as folk medicines in traditional medicine systems for its chemical diversity and pharmacological activities. In many different areas, Flacourtiaceae plants are used as traditional medicines for the treatment of ulcers, malaria, rheumatism. The Flacourtiaceae plants contain a very plentiful chemical composition, and phytochemical studies show that the Flacourtiaceae plants contained terpenoids, aromatic glycosides, flavnoids, phenylpropanoids, alkaloids, fatty hydrocarbon, and other compounds. In pharmacological studies, various extract and isolated individual compounds exhibited antitumor, anti-oxidation, and anti-inflammatory activities. In this review, the literature data on the chemical constituents and pharmacological investigations of the Flacourtiaceae plants are summarized, to provide information about a more comprehensive chemical composition and detailed pharmacological activities of Flacourtiaceae plants, with a view of further development of clinical medication. However, research on quantitative analysis, toxicity, and drug safety in vitro and in vivo is still insufficient, and further research is required.
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Affiliation(s)
- Yu Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Jing Kong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Jin-Hua Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Lu Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Wei Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Bin Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Yan-Yan Jiang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
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Secondary metabolites from Corispermum mongolicum Iljin and their chemotaxonomic significance. BIOCHEM SYST ECOL 2019. [DOI: 10.1016/j.bse.2019.05.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Anh NTH, Tam KT, Tuan NV, Bao NC, Thien DD, Quan TD, Tam NT, Thuy TT, Sung TV. Chemical Constituents of Hedyotis ampliflora. Chem Nat Compd 2019. [DOI: 10.1007/s10600-019-02697-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nishiyama Y, Noda Y, Nakatani N, Shitan N, Sudo T, Kato A, Chalo Mutiso PB. Structure of constituents isolated from the bark of Cassipourea malosana and their cytotoxicity against a human ovarian cell line. J Nat Med 2018; 73:289-296. [PMID: 30353358 DOI: 10.1007/s11418-018-1254-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 10/05/2018] [Indexed: 11/25/2022]
Abstract
Three aromatic compounds, 2α,3α-epoxyflavan-5,7,4'-triol-(4β → 8)-afzelechin (1), 2β,3β-epoxyflavan-5,7,4'-triol-(4α → 8)-epiafzelechin (2), and methyl 4-ethoxy-2-hydroxy-6-propylbenzoate (3), as well as eight known compounds (4-11) were isolated from the bark of Cassipourea malosana (Rhizophoraceae). Their structures were determined on the basis of an analysis of spectroscopic data. The in vitro cytotoxic activities of these compounds against human ovarian cancer cell line TOV21G were evaluated. Most compounds showed little activity; however, the methyl derivatives of flavan dimers (1a and 2a) showed higher activity (IC50 value of 30.3 and 75.4 μM) than parent compounds 1 and 2.
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Affiliation(s)
- Yumi Nishiyama
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan.
| | - Yuki Noda
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan
| | - Noriyoshi Nakatani
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan
| | - Nobukazu Shitan
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan
| | - Tamotsu Sudo
- Hyogo Cancer Center, Kitaoji-chou, Akashi, 673-8558, Hyogo, Japan
| | - Atsushi Kato
- Medicinal Cell Biology, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Hyogo, Japan
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Tam NT, Quan TD, Hau DV, Hoang Anh NT, Tran TTT, Sa NH, Thien DD, Nhung LTH, Phong DT, Adorisio S, Delfino DV, Thuy TT. Anti-proliferative diterpenes from Dacrycarpus imbricatus. Nat Prod Res 2018; 33:3357-3363. [PMID: 29781313 DOI: 10.1080/14786419.2018.1477149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
A new diterpene, cassipouryl hexadecanoate (2), in addition to the cassipourol (1) and four terpenes (3-6) were isolated from the twigs and leaves of Dacrycarpus imbricatus (Blume) de Laub. The structures of the two monocyclic diterpenes (1, 2), were elucidated on the basic of 1D and 2D NMR spectroscopic data and compared with the literature. These two monocyclic diterpenes (1, 2) were tested for their anti-proliferative activity on acute myeloid leukemia (OCI-AML) cells. The results showed that 1 had significantly anti-proliferative activity whereas 2 was weakly active.
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Affiliation(s)
- Nguyen Thanh Tam
- Department of Natural Products Research, Institute of Chemistry , Ha Noi , Viet Nam.,Department of Chemistry, Graduate University of Science and Technology , Ha Noi , Viet Nam
| | - Tran Duc Quan
- Department of Natural Products Research, Institute of Chemistry , Ha Noi , Viet Nam
| | - Dang Viet Hau
- Department of Chemistry, Graduate University of Science and Technology , Ha Noi , Viet Nam
| | - Nguyen Thi Hoang Anh
- Department of Natural Products Research, Institute of Chemistry , Ha Noi , Viet Nam.,Department of Chemistry, Graduate University of Science and Technology , Ha Noi , Viet Nam
| | - Thi Thanh Thuy Tran
- Department of Chemistry, Graduate University of Science and Technology , Ha Noi , Viet Nam
| | - Nguyen Hoang Sa
- Department of Chemistry, Graduate University of Science and Technology , Ha Noi , Viet Nam.,Department of Chemistry, University of Khanh Hoa , Ha Noi , Viet Nam
| | - Dao Duc Thien
- Department of Natural Products Research, Institute of Chemistry , Ha Noi , Viet Nam
| | - Le Thi Hong Nhung
- Faculty of Chemical Technology, Hanoi University of Industry , Ha Noi , Viet Nam
| | - Dinh Thi Phong
- Department of Experimental Taxonomy and Genetic Diversity, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology , Ha Noi , Viet Nam
| | - Sabrina Adorisio
- Section of Pharmacology, Department of Medicine, University of Perugia , Perugia , Italy
| | - Domenico V Delfino
- Section of Pharmacology, Department of Medicine, University of Perugia , Perugia , Italy
| | - Trinh Thi Thuy
- Department of Natural Products Research, Institute of Chemistry , Ha Noi , Viet Nam.,Department of Chemistry, Graduate University of Science and Technology , Ha Noi , Viet Nam
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14
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Rasamiravaka T, Ngezahayo J, Pottier L, Ribeiro SO, Souard F, Hari L, Stévigny C, Jaziri ME, Duez P. Terpenoids from Platostoma rotundifolium (Briq.) A. J. Paton Alter the Expression of Quorum Sensing-Related Virulence Factors and the Formation of Biofilm in Pseudomonas aeruginosa PAO1. Int J Mol Sci 2017; 18:ijms18061270. [PMID: 28613253 PMCID: PMC5486092 DOI: 10.3390/ijms18061270] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 05/30/2017] [Accepted: 06/07/2017] [Indexed: 01/22/2023] Open
Abstract
Platostoma rotundifolium (Briq.) A. J. Paton aerial parts are widely used in Burundi traditional medicine to treat infectious diseases. In order to investigate their probable antibacterial activities, crude extracts from P. rotundifolium were assessed for their bactericidal and anti-virulence properties against an opportunistic bacterial model, Pseudomonas aeruginosa PAO1. Whereas none of the tested extracts exert bacteriostatic and/or bactericidal proprieties, the ethyl acetate and dichloromethane extracts exhibit anti-virulence properties against Pseudomonas aeruginosa PAO1 characterized by an alteration in quorum sensing gene expression and biofilm formation without affecting bacterial viability. Bioguided fractionation of the ethyl acetate extract led to the isolation of major anti-virulence compounds that were identified from nuclear magnetic resonance and high-resolution molecular spectroscopy spectra as cassipourol, β-sitosterol and α-amyrin. Globally, cassipourol and β-sitosterol inhibit quorum sensing-regulated and -regulatory genes expression in las and rhl systems without affecting the global regulators gacA and vfr, whereas α-amyrin had no effect on the expression of these genes. These terpenoids disrupt the formation of biofilms at concentrations down to 12.5, 50 and 50 µM for cassipourol, β-sitosterol and α-amyrin, respectively. Moreover, these terpenoids reduce the production of total exopolysaccharides and promote flagella-dependent motilities (swimming and swarming). The isolated terpenoids exert a wide range of inhibition processes, suggesting a complex mechanism of action targeting P. aeruginosa virulence mechanisms which support the wide anti-infectious use of this plant species in traditional Burundian medicine.
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Affiliation(s)
- Tsiry Rasamiravaka
- Laboratory of Plant Biotechnology, Université Libre de Bruxelles, rue des Professeurs Jeener et Brachet 12, 6041 Gosselies, Belgium.
- Laboratoire de Biotechnologie et Microbiologie, Département de Biochimie Fondamentale et Appliquée, Faculté des Sciences, Université d'Antananarivo (UA), BP 906, Antananarivo 101, Madagascar.
| | - Jérémie Ngezahayo
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050 Bruxelles, Belgium.
- Centre de Recherche Universitaire en Pharmacopée et Médecine Traditionnelle (CRUPHAMET), Faculté des Sciences, Université du Burundi, BP 2700 Bujumbura, Burundi.
| | - Laurent Pottier
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050 Bruxelles, Belgium.
| | - Sofia Oliveira Ribeiro
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050 Bruxelles, Belgium.
| | - Florence Souard
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050 Bruxelles, Belgium.
- Département de Pharmacochimie Moléculaire, Université Grenoble Alpes, 38000 Grenoble, France.
- Département de Pharmacochimie Moléculaire, Centre National de Recherche Scientifique, 38000 Grenoble, France.
| | - Léonard Hari
- Centre de Recherche Universitaire en Pharmacopée et Médecine Traditionnelle (CRUPHAMET), Faculté des Sciences, Université du Burundi, BP 2700 Bujumbura, Burundi.
| | - Caroline Stévigny
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050 Bruxelles, Belgium.
| | - Mondher El Jaziri
- Laboratory of Plant Biotechnology, Université Libre de Bruxelles, rue des Professeurs Jeener et Brachet 12, 6041 Gosselies, Belgium.
| | - Pierre Duez
- Laboratoire de Pharmacognosie, Bromatologie et Nutrition Humaine, Faculté de Pharmacie, Université Libre de Bruxelles, CP 205/09, Boulevard du Triomphe, 1050 Bruxelles, Belgium.
- Unit of Therapeutic Chemistry and Pharmacognosy, Université de Mons (UMONS), Bâtiment VI, Chemin du Champ de Mars 25, 7000 Mons, Belgium.
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15
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Martins DCDS, Silva FC, Meireles AM, Soares ÉAR, Silva GDF, Vieira-Filho SA, Duarte LP, Rebouças JS, Idemori YM. Selective oxidation of lupeol by iodosylbenzene catalyzed by manganese porphyrins. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.08.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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16
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Hou Y, Cao S, Brodie PJ, Miller JS, Birkinshaw C, Andrianjafy MN, Andriantsiferana R, Rasamison VE, TenDyke K, Shen Y, Suh EM, Kingston DG. Euphane triterpenoids of Cassipourea lanceolata from the Madagascar rainforest. PHYTOCHEMISTRY 2010; 71:669-674. [PMID: 20074760 PMCID: PMC2847016 DOI: 10.1016/j.phytochem.2009.12.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 11/30/2009] [Accepted: 12/14/2009] [Indexed: 05/28/2023]
Abstract
Fractionation of an ethanol extract of a Madagascar collection of the leaves and fruit of Cassipourea lanceolata Tul. led to the isolation of three euphane triterpenoids 1-3. The (1)H and (13)C NMR spectra of all compounds were fully assigned using a combination of 2D NMR experiments, including COSY, TOCSY, HSQC (HMQC), HMBC and ROESY sequences. The three compounds showed weak antiproliferative activities against the A2780 human ovarian cancer cell line, with IC(50) values of 25, 25 and 32 microM, respectively.
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Affiliation(s)
- Yanpeng Hou
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA
| | - Shugeng Cao
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA
| | - Peggy J. Brodie
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA
| | - James S. Miller
- Missouri Botanical Garden, P.O. Box 299, St. Louis, MO 63166-0299, USA
- Missouri Botanical Garden, B.P 3391, Antananarivo 101, Madagascar, USA
| | - Chris Birkinshaw
- Missouri Botanical Garden, P.O. Box 299, St. Louis, MO 63166-0299, USA
- Missouri Botanical Garden, B.P 3391, Antananarivo 101, Madagascar, USA
| | - Mamisoa N. Andrianjafy
- Missouri Botanical Garden, P.O. Box 299, St. Louis, MO 63166-0299, USA
- Missouri Botanical Garden, B.P 3391, Antananarivo 101, Madagascar, USA
| | - Rabodo Andriantsiferana
- Centre National d'Application et Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar, USA
| | - Vincent E. Rasamison
- Centre National d'Application et Recherches Pharmaceutiques, B.P 702, Antananarivo 101, Madagascar, USA
| | - Karen TenDyke
- Eisai Inc., 4 Corporate Drive, Andover, MA 01810, USA
| | - Yongchun Shen
- Eisai Inc., 4 Corporate Drive, Andover, MA 01810, USA
| | - Edward M. Suh
- Eisai Inc., 4 Corporate Drive, Andover, MA 01810, USA
| | - David G.I. Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA
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17
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Yoder BJ, Cao S, Norris A, Miller JS, Ratovoson F, Andriantsiferana R, Rasamison VE, Kingston DGI. Tambouranolide, a new cytotoxic hydroxybutanolide from a Tambourissa sp. (Monimiaceae). Nat Prod Res 2007; 21:37-41. [PMID: 17365687 PMCID: PMC2782940 DOI: 10.1080/14786410500445574] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A new cytotoxic hydroxybutanolide, tambouranolide, has been isolated by solid phase extraction from an ethanol extract of the dried roots of a species of Tambourissa (Monimiaceae) from the Madagascar rainforest. The structure was elucidated through the interpretation of spectral data and its comparison to data reported in the literature for related molecules. The compound showed moderate in vitro cytotoxicity with an IC50 of 8 micro g mL(-1) in the A2780 human ovarian cancer cell line assay.
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Affiliation(s)
- Brent J. Yoder
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24061, USA
| | - Shugeng Cao
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24061, USA
| | - Andrew Norris
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24061, USA
| | - James S. Miller
- Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri, 63166-0299, USA
| | | | - Rabodo Andriantsiferana
- Centre National d'Application et Recherches Pharmaceutiques, B. P. 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre National d'Application et Recherches Pharmaceutiques, B. P. 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24061, USA
- Corresponding author.
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18
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Williams RB, Norris A, Miller JS, Birkinshaw C, Ratovoson F, Andriantsiferana R, Rasamison VE, Kingston DGI. Cytotoxic clerodane diterpenoids and their hydrolysis products from Casearia nigrescens from the rainforest of Madagascar. JOURNAL OF NATURAL PRODUCTS 2007; 70:206-9. [PMID: 17315961 PMCID: PMC2435182 DOI: 10.1021/np0605034] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Bioassay-guided fractionation of the cytotoxic leaf and flower extract of Casearia nigrescens led to the isolation of four new clerodane diterpenoids, designated caseanigrescens A-D (1-4). These compounds were subject to hydrolysis to dialdehydes when stored in CDCl3. The structures of compounds 1-4 were determined using 1D and 2D NMR spectroscopy. All four compounds showed moderate cytotoxicity to the A2780 human ovarian cancer cell line, with an IC50 range of 0.83-1.4 microM.
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Affiliation(s)
- Russell B. Williams
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0212
| | - Andrew Norris
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0212
| | - James S. Miller
- Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166-0299
| | - Chris Birkinshaw
- Missouri Botanical Garden, B.P 3391, Antananarivo 101, Madagascar
| | - Fidy Ratovoson
- Missouri Botanical Garden, B.P 3391, Antananarivo 101, Madagascar
| | - Rabodo Andriantsiferana
- Centre National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0212
- To whom correspondence should be addressed. Tel: (540) 231-6570. Fax: (540) 231-7702. E-mail:
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19
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Cao S, Radwan MM, Norris A, Miller JS, Ratovoson F, Mamisoa A, Andriantsiferana R, Rasamison VE, Rakotonandrasana S, Kingston DGI. Cytotoxic and other compounds from Didymochlaena truncatula from the Madagascar rain forest. JOURNAL OF NATURAL PRODUCTS 2006; 69:284-6. [PMID: 16499333 PMCID: PMC2442717 DOI: 10.1021/np050351x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Bioassay-guided fractionation of the EtOH extracts obtained from a plant identified as Didymochlaena truncatula led to the isolation of two cytotoxic alkaloids, camptothecin and 9-methoxycamptothecin. A second plant collection yielded three lignan derivatives, didymochlaenone A (1), didymochlaenone B (2), and (-)-wikstromol, one stilbene, (E)-3-methoxy-5-hydroxystilbene, and two stigmasterol derivatives, stigmast-4-en-3beta-ol and stigmast-4-en-3-one, but no camptothecins, and it is probable that a coding error led to a mistaken identification of the original extract. The structures of the new compounds 1 and 2 were established on the basis of extensive interpretation of one- and two-dimensional NMR spectroscopic data.
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Affiliation(s)
- Shugeng Cao
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - Mohamed M. Radwan
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - Andrew Norris
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - James S. Miller
- Missouri Botanical Garden, P. O. Box 299, St. Louis, Missouri 63166-0299
| | - Fidy Ratovoson
- Missouri Botanical Garden, P. O. Box 299, St. Louis, Missouri 63166-0299
| | | | - Rabodo Andriantsiferana
- Centre National d'Application et Recherches Pharmaceutiques, B. P. 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre National d'Application et Recherches Pharmaceutiques, B. P. 702, Antananarivo 101, Madagascar
| | - Stephan Rakotonandrasana
- Centre National d'Application et Recherches Pharmaceutiques, B. P. 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
- To whom correspondence should be addressed. Tel: (540) 231-6570. Fax: (540) 231-7702. E-mail:
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