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Pengnam S, Jitkaroon W, Srisuphan R, Wongprayoon P, Rayanil KO, Charoensuksai P. Furanocoumarin compounds isolated from Dorstenia foetida potentiate irinotecan anticancer activity against colorectal cancer cells. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2024; 74:67-79. [PMID: 38554381 DOI: 10.2478/acph-2024-0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/03/2023] [Indexed: 04/01/2024]
Abstract
Although the anticancer activity of Dorstenia foetida was already observed, the chemical entity responsible for this activity remained unidentified. In this study, the cytotoxic activity of two furanocoumarin compounds, i.e., 5-methoxy--3-(3-methyl-2,3-dihydroxybutyl)-psoralen (1) and 5-methoxy-3-(3-methyl-2,3-dihydroxybutyl)-psoralen diacetate (2) isolated from ethyl acetate fraction of D. foetida (whole plant) was investigated in several cancer cell lines including HN22, MDA-MB-231, HCT116, and HT29. The results revealed that compound 2 exhibited cytotoxic activity, particularly against colorectal cancer cell lines HCT116 and HT29. The interplay between compound 2 and irinotecan (Iri) showed synergism against HCT116, which was analyzed by CompuSyn software. The simulation revealed that, at the molar ratio of Iri:2 of 1:40, the concentration predicted to achieve a 90 % inhibitory effect when used in the combination would be ~28- and ~4-fold lower than the concentration of compound 2 and Iri, resp., when used individually. Finally, the percentage of apoptotic cells in the HCT116 line treated with the combination was markedly higher than in the cells treated with the individual agent (60 % apoptotic cells for the combination compared to 17 and 45 % for Iri and compound 2 monotherapy, resp). In conclusion, our results identified compound 2 as a plant-derived compound exhibiting anticancer properties that can act synergistically with Iri and warranted further research to assess the potential of this synergism for colorectal cancer treatment.
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Affiliation(s)
- Supusson Pengnam
- Department of Biomedicine and Health Informatics, Green Innovations Group (PDGIG), Faculty of Pharmacy Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Watcharapa Jitkaroon
- Department of Chemistry, Faculty of Science, Silpakorn University, Nakhon Pathom, 73000, Thailand
| | - Roongtiwa Srisuphan
- Bioactives from Natural Resources Research Collaboration for Excellence in Pharmaceutical Sciences (BNEP) Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000 Thailand
| | - Pawaris Wongprayoon
- Department of Biomedicine and Health Informatics and Bioactives from Natural Resources Research Collaboration for Excellence in Pharmaceutical Sciences (BNEP), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000 Thailand
| | - Kanok-On Rayanil
- Department of Chemistry, Faculty of Science, Silpakorn University, Nakhon Pathom, 73000, Thailand
| | - Purin Charoensuksai
- Department of Biomedicine and Health Informatics and Bioactives from Natural Resources Research Collaboration for Excellence in Pharmaceutical Sciences (BNEP), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000 Thailand
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Du RR, Zhou JC, Qin WJ, Lu KZ, Duan XM, Yang YN, Yuan X, Li K, Zhang XW, Zhang PC. Fourteen new 2-benzylbenzofuran glycosides with cardioprotective activity from Heterosmilax yunnanensis. Bioorg Chem 2024; 143:107079. [PMID: 38185011 DOI: 10.1016/j.bioorg.2023.107079] [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: 09/05/2023] [Revised: 12/15/2023] [Accepted: 12/28/2023] [Indexed: 01/09/2024]
Abstract
Fourteen new 2-benzylbenzofuran O-glycosides (1-13, 15) and one new key precursor, diarylacetone (14) were isolated from the roots of Heterosmilax yunnanensis Gagnep, which all have characteristic 2,3,4-O-trisubstituted benzyl. Their structures were elucidated by 1D and 2D NMR, HRESIMS, UV and IR. The isolated compounds were assessed for their cardioprotective activities and compounds 1, 3 and 6 could significantly improve cardiomyocytes viability. Moreover, the mechanistic study revealed that these three compounds could significantly decrease intracellular ROS levels and maintain mitochondrial homeostasis upon hypoxia inducement. Consequently, 1, 3 and 6 might serve as potential lead compounds to prevent myocardial ischemia.
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Affiliation(s)
- Rong-Rong Du
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Ji-Chao Zhou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Wen-Jie Qin
- Beijing Zhendong Guangming Pharmaceutical Research Institute, Beijing 100085, China
| | - Kai-Zhou Lu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiu-Mei Duan
- Beijing Zhendong Guangming Pharmaceutical Research Institute, Beijing 100085, China
| | - Ya-Nan Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiang Yuan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Kun Li
- Shanxi Zhendong Pharmaceutical Co. Ltd, Changzhi 047100, China.
| | - Xiao-Wei Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Pei-Cheng Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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Al-Fatimi M. Ethnopharmacological survey of endemic plants used in ethnomedicinal knowledge of Soqotra Island. JOURNAL OF ETHNOPHARMACOLOGY 2023; 304:116033. [PMID: 36567039 DOI: 10.1016/j.jep.2022.116033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Due to the long biogeographical isolation since ancient times, Soqotra Island (southern Yemen) is rich in medicinal endemic plants. However, information on their traditional therapeutic knowledge is scarce in scientific literature and still not completely documented. AIM OF THE STUDY (1) Documentation and search the native traditional therapeutic knowledge focusing on the medicinal plants which are endemic to Soqotra (2) Identification of the important endemic plants treating diseases by quantitative analysis of the collected data. MATERIALS AND METHODS Ethnobotanical data were collected from 105 local informants through open interviews, semi-structured questionnaires and field survey in February 1990 to document the traditional medicinal plants in Soqotra Island. Of them we reported in this study the data of the endemic species, due to their wide biodiversity in the island. The quantitative data were analyzed for use reports (URs) and the informant consensus factor (ICF). The reported diseases were classified according to the International Classification of Primary Care-2 (ICPC-2). New reported medicinal plants in this study were identified compared to literature review. The level of traditional Soqotri knowledge among Islanders was observed during 1990-2003. RESULTS In the study, 86 medicinal endemic plants with 7654 therapeutic URs were explored for 69 ailments types belongs to 11 (ICPC-2) groups. The highest ICF value (0.99) were calculated for both eye and ear diseases categories, followed by general and unspecified ailments (0.98), digestive and skin (0.97 for each), and musculoskeletal ailments (0.96) among all diseases categories. While the highest URs (2276) were identified for skin diseases, followed by digestive diseases (URs = 2146). All the 86 recorded medicinal plant species were endemic to Soqotra, belonging to 57 genera and 29 families. Euphorbiaceae and Burseraceae were the dominant families, followed by Apocynaceae, Fabaceae and Asteraceae. Shrubs were the dominant growth form (41 species, 47.67%), followed by herbs (27; 31.4%), and trees (14; 16.28%). Leaves (45 species; 31.25%) were the most frequently used parts, followed by stems (34 species; 23.61%) and barks (species 23; 15.97%). The most cited preparation method was paste for 51 species followed by liquid exudates (48 species) and powder (26 species). Based on the comparative literature review, we recorded 36 new endemic medicinal plants and reported new traditional therapeutic uses for the remaining 50 endemic plants for the first time. On the other hand, all the reported endemic medicinal plants have been enlisted in the IUCN Red List of Threatened Species, of them 21 endemic species enlisted as highest threatened species. CONCLUSION According to the quantitative data analyzed, Soqotra Island has a valuable traditional knowledge in several medicinal endemic plants that used by local people in the primary health care until the study time at 1990. This study emphasizes the importance of early time in documenting traditional indigenous knowledge before losing and to protect and conserve the endemic plants against highly endangered. Consequently, these ethnomedicinal data could be used in the future as guide for pharmacological and phytochemical studies to discover new therapeutic drugs.
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Affiliation(s)
- Mohamed Al-Fatimi
- Faculty of Pharmacy, Department of Pharmacognosy, Aden University, Department of Pharmacy, Higher Institute for Health Sciences, Health Ministry, P.O. Box 5411-Maalla, Aden, Yemen.
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Huang HC, Lin CH, Kuo CC, Wu MD, Cheng MJ, Chen JJ, Chao CY, Huang GJ, Kuo YH. Two new chromones and a new coumarin from the fruit of Cnidium monnieri (L.) Cusson. Nat Prod Res 2023; 37:47-55. [PMID: 34519597 DOI: 10.1080/14786419.2021.1948042] [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: 01/05/2023]
Abstract
Two new chromones named cnidimol G (1) and cnidimol H (2), one new coumarin, 7-methoxy-8-(3-methoxy-3-methyl-2-oxobutyl)coumarin (3), and twenty known compounds were isolated from MeOH extract of the fruit of Cnidium monnieri (L.) Cusson. The structures of compounds were elucidated by extensive spectroscopic analyses including 1 D and 2 D NMR, HRESIMS, IR and UV. Anti-inflammatory activity of the selected isolated compounds were evaluated. Compounds 1 and 8 exhibited inhibitory activities against nitric oxide production.
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Affiliation(s)
- Hui-Chi Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, Taiwan.,Master Program for Food and Drug Safety, China Medical University, Taichung, Taiwan
| | - Chun-Hsiang Lin
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Ching-Chuan Kuo
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan, Taiwan
| | - Ming-Der Wu
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan
| | - Ming-Jen Cheng
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan
| | - Jih-Jung Chen
- Faculty of Pharmacy, School of Pharmaceutical Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Che-Yi Chao
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, Taiwan
| | - Yueh-Hsiung Kuo
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, Taiwan.,Department of Biotechnology, Asia University, Taichung, Taiwan.,Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
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Sisay W, Andargie Y, Molla M. Antidiabetic Activity of Hydromethanolic Extract of Crude Dorstenia barnimiana Root: Validation of In Vitro and In Vivo Antidiabetic and Antidyslipidemic Activity. J Exp Pharmacol 2022; 14:59-72. [PMID: 35177940 PMCID: PMC8845113 DOI: 10.2147/jep.s343735] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 01/14/2022] [Indexed: 12/25/2022] Open
Abstract
Background Despite modern therapeutic armamentaria, DM remains a 21st-century public health menace. Novel phytomedicines are a rapidly expanding focus of research. The juice of Dorstenia barnimiana roots has long been used for the treatment of diabetes mellitus in traditional Ethiopian medicine, but its efficacy has not been supported by in vitro or in vivo scientific study. To investigate this, the present work was performed. Methods In this experimental study, simple random sampling was applied. Healthy male mice were used in normoglycemic and oral glucose-tolerance test (OGTT) models. Streptozotocin (IP, 150 mg/kg)–administered diabetic male mice were utilized. Animals were randomly divided into five groups of six each. Group I received 10 mL/kg distilled water, groups II–IV received 100 (DB100), 200 (DB200), and 400 (DB400) mg/kg crude extract, respectively, and group V received glibenclamide 5 mg/kg. A sham group (group VI) was added that received 10 mL/kg distilled water. All treatments were given orally. FBG, serum-lipid profiles, and body-weight changes were then measured. In vitro α-amylase inhibitory activity was also evaluated. Results The doses were atoxic up to 2,000 mg/kg. There was α-amylase inhibition activity of 67.52% at 500 μg/mL with an IC50 of 4.595 μg/mL. The OGTT revealed an antihyperglycemic effect of the crude extract. This was not attributed to a hypoglycemic side effect. In the diabetic mouse model, it shrank FBG levels remarkably. There were also significant reductions in serum TC, TGs, VLDL-C, and LDL-C. Nevertheless, HDL-C and body-weight levels returned. Conclusion The present study confirmed the safety and promising in vivo antidiabetic and antidyslipidemic activity of D. barnimiana, thus corroborating the traditional claim.
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Affiliation(s)
- Woretaw Sisay
- Department of Pharmacy, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
- Correspondence: Woretaw Sisay, Email ;
| | - Yared Andargie
- Department of Pharmacy, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Mulugeta Molla
- Department of Pharmacy, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
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Zhu XF, Li XJ, Cao ZL, Liu XJ, Yang P, Ju D, Mu Q. Synergistic Antitumor Effect of 5-Fluorouracil Combined with Constituents from Pleurospermum lindleyanum in Hepatocellular Carcinoma SMMC-7721 Cells. Anticancer Agents Med Chem 2021; 21:508-522. [PMID: 32838723 DOI: 10.2174/1871520620666200824094624] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/13/2020] [Accepted: 08/31/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND A Chinese folk medicine plant Pleurospermum lindleyanum possesses pharmacological activities of heat-clearing, detoxifying and preventing from hepatopathy, coronary heart disease, hypertension, and high altitude sickness. We isolated and characterized its constituents to investigate its synergistic effects against human hepatoma SMMC-7721 cells. OBJECTIVE The aim of this study was to explore the synergistic anti-cancer activities of isolates from P. lindleyanum with 5-FU on hepatoma SMMC-7721 cells in vitro and their primary mechanisms. METHODS Sequential chromatographic techniques were conducted for the isolation studies. The isolate's structures were established by spectroscopic analysis as well as X-ray crystallographic diffraction. Growth inhibition was detected by MTT assay. The isobologram method was used to assess the effect of drug combinations. Flow cytometry and western blot were used to examine apoptosis and protein expression. RESULTS A new coumarin (16), along with sixteen known compounds, were isolated from the whole plant of P. lindleyanum and their structures were elucidated by spectroscopic methods. Four coumarins (2, 3, 5, and 16), two flavonoids (8 and 9) and three phytosterols and triterpenes (12-14) were found to synergistically enhance the inhibitory effect of 5-FU against SMMC-7721 cells. Among them, compounds 3 and 16 exhibited the best synergistic effects with IC50 of 5-FU reduced by 16-fold and 22-fold possessing the minimum Combination Index (CI) 0.34 and 0.27. The mechanism of action of combinations might be through synergistic arresting for the cell cycle at G1 phases and the induction of apoptosis. Moreover, western blotting and molecular docking revealed that compounds 3 or 5 might promote 5-FU-induced apoptosis by regulating the expression of Caspase 9 and PARP. CONCLUSION Constituents from P. lindleyanum may improve the treatment effectiveness of 5-FU against hepatocellular carcinoma cells.
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Affiliation(s)
- Xiao-Feng Zhu
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Xiao-Jin Li
- Traditional Chinese Medicine and Ethnomedicine Institute of Xinjiang, Wulumuqi 830002, China
| | - Zhong-Lian Cao
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Xiu-Jie Liu
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Ping Yang
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Dianwen Ju
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Qing Mu
- School of Pharmacy, Fudan University, Shanghai 201203, China
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Bio-guided isolation of leishmanicidal and trypanocidal constituents from Pituranthos battandieri aerial parts. Parasitol Int 2021; 82:102300. [PMID: 33540121 DOI: 10.1016/j.parint.2021.102300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 01/22/2021] [Accepted: 01/29/2021] [Indexed: 11/23/2022]
Abstract
Protozoan pathogens that cause neglected tropical diseases are a major public health concern in tropical and developing countries. In the course of our ongoing search for new lead compounds as potential antiprotozoal agents, this study aims to perform a bio-guided fractionation of Pituranthos battandieri, using an in vitro assay against Leishmania amazonensis and Trypanosoma cruzi. Two known polyacetylenes, (-)-panaxydiol (1) and (-)-falcarindiol (2) were identified from the ethanolic extract of the aerial parts of P. battandieri as the main bioactive constituents. Compounds 1 and 2 showed similar potency (IC50 values of 5.76 and 5.68 μM, respectively) against L. amazonensis to miltefosine (IC50 value of 6.48 μM), the reference drug, and low toxicity on macrophage cell lines J774. Moreover, compound 1 exhibited moderate activity (IC50 23.24 μM) against T. cruzi. In addition, three known furanocoumarins, 8-geranyloxypsoralen (3), 8-geranyloxy-5-methoxypsoralen (4), and phellopterin (5) were isolated. Their structures were elucidated by NMR and MS analysis. Compounds 1 and 2 are described for the first time in the Pituranthos genus, and this is the first report on their antiprotozoal activity. These results highlight this type of polyacetylenes as an interesting scaffold for the development of novel antiparasitic drugs.
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Matsumoto T, Watanabe T. Isolation and structure elucidation of constituents of Citrus limon, Isodon japonicus, and Lansium domesticum as the cancer prevention agents. Genes Environ 2020; 42:17. [PMID: 32322316 PMCID: PMC7164196 DOI: 10.1186/s41021-020-00156-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/04/2020] [Indexed: 11/10/2022] Open
Abstract
In the course of our research to investigate the cancer prevention potency of natural products derived from plant materials, we isolated fifty-five compounds, including twenty-one new compounds from the peels of Citrus limon, aerial parts of Isodon japonicus, and leaves of Lansium domesticum. The chemical structures of the isolated compounds were elucidated by chemical/physicochemical evidence, and nuclear magnetic resonance spectroscopy and mass spectrometry results. Moreover, the absolute stereochemistry of the new compounds were elucidated by various techniques such as chemical synthesis, modified Mosher’s method, Cu-Kα X-ray crystallographic analysis, and comparison of experimental and predicted electronic circular dichroism data. The antimutagenic effects of the isolated and structure-elucidated compounds against heterocyclic amines, 3-amino-1,4-dimethyl-5H-pyrido [4,3-b]indole (Trp-P-1) and 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP), were evaluated by the Ames test and in vivo micronucleus test. In this review, we present the comprehensive results of the antimutagenic effects of the isolated natural products.
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Affiliation(s)
- Takahiro Matsumoto
- Department of Public Health, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412 Japan
| | - Tetsushi Watanabe
- Department of Public Health, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412 Japan
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Cytotoxic benzylbenzofuran derivatives from Dorstenia kameruniana. Fitoterapia 2018; 128:26-30. [PMID: 29715541 DOI: 10.1016/j.fitote.2018.04.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/22/2018] [Accepted: 04/27/2018] [Indexed: 12/29/2022]
Abstract
Chromatographic separation of the extract of the roots of Dorstenia kameruniana (family Moraceae) led to the isolation of three new benzylbenzofuran derivatives, 2-(p-hydroxybenzyl)benzofuran-6-ol (1), 2-(p-hydroxybenzyl)-7-methoxybenzofuran-6-ol (2) and 2-(p-hydroxy)-3-(3-methylbut-2-en-1-yl)benzyl)benzofuran-6-ol(3) (named dorsmerunin A, B and C, respectively), along with the known furanocoumarin, bergapten (4). The twigs of Dorstenia kameruniana also produced compounds 1-4 as well as the known chalcone licoagrochalcone A (5). The structures were elucidated by NMR spectroscopy and mass spectrometry. The isolated compounds displayed cytotoxicity against the sensitive CCRF-CEM and multidrug-resistant CEM/ADR5000 leukemia cells, where compounds 4 and 5 had the highest activities (IC50 values of 7.17 μM and 5.16 μM, respectively) against CCRF-CEM leukemia cells. Compound 5 also showed cytotoxicity against 7 sensitive or drug-resistant solid tumor cell lines (breast carcinoma, colon carcinoma, glioblastoma), with IC50 below 50 μM, whilst 4 showed selective activity.
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Structures of antimutagenic constituents in the peels of Citrus limon. J Nat Med 2017; 71:735-744. [DOI: 10.1007/s11418-017-1108-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 06/24/2017] [Indexed: 11/25/2022]
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Kwon Y, Kim HP, Kim MJ, Chun W. Acetylcholinesterase Inhibitors from Angelica polymorpha Stem. ACTA ACUST UNITED AC 2017. [DOI: 10.20307/nps.2017.23.2.97] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yongsoo Kwon
- College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Hyun Pyo Kim
- College of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Myong Jo Kim
- College of Agriculture and Life science, Kangwon National University, Chuncheon 24341, Korea
| | - Wanjoo Chun
- School of Medicine, Kangwon National University, Chuncheon 24341, Korea
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Ha MT, Tran MH, Ah KJ, Jo KJ, Kim J, Kim WD, Cheon WJ, Woo MH, Ryu SH, Min BS. Potential pancreatic lipase inhibitory activity of phenolic constituents from the root bark of Morus alba L. Bioorg Med Chem Lett 2016; 26:2788-2794. [PMID: 27156775 DOI: 10.1016/j.bmcl.2016.04.066] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 04/20/2016] [Accepted: 04/23/2016] [Indexed: 12/25/2022]
Abstract
Detailed phytochemical investigation from the root bark of Morus alba resulted in the isolation of eleven new compounds, including seven 2-arylbenzofuran derivatives (morusalfurans A-G), three flavonoids (morusalnols A-C), and one geranylated stilbene (morusibene A), as well as 22 known compounds. The structures of the identified compounds were elucidated based on a comprehensive analysis of spectroscopic data and Mosher's method. Compounds 2, 3, 6-8, 11, 23, 24, and 29 showed potent inhibition of PL in comparison with the positive control treatment (orlistat, IC50=0.012μM), with IC50 values ranging from 0.09 to 0.92μM.
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Affiliation(s)
- Manh Tuan Ha
- College of Pharmacy, Drug Research and Development Center, Catholic University of Daegu, Gyeongbuk 712-702, Republic of Korea; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay District, Hanoi, Vietnam
| | - Manh Hung Tran
- College of Pharmacy, Drug Research and Development Center, Catholic University of Daegu, Gyeongbuk 712-702, Republic of Korea
| | - Kim Jeong Ah
- College of Pharmacy, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Kyung-Jin Jo
- Division of Molecular and Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Jaewang Kim
- Division of Molecular and Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Wook Dong Kim
- Gyeongsanbuk-do Forest & Environment Research Institute, Gyeongju 780-936, Republic of Korea
| | - Woo Jae Cheon
- Gyeongsanbuk-do Forest & Environment Research Institute, Gyeongju 780-936, Republic of Korea
| | - Mi Hee Woo
- College of Pharmacy, Drug Research and Development Center, Catholic University of Daegu, Gyeongbuk 712-702, Republic of Korea
| | - Sung Ho Ryu
- Division of Molecular and Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Byung Sun Min
- College of Pharmacy, Drug Research and Development Center, Catholic University of Daegu, Gyeongbuk 712-702, Republic of Korea.
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Wei C, Wu X, Li X, Li J. Two New Coumarins from the Roots of Ligusticum daucoides. Chem Nat Compd 2015. [DOI: 10.1007/s10600-015-1425-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shi HL, Jia YW, Peng SL, Liao X, Ding LS, Liu YM. Metabolic study of Angelica dahurica extracts using a reusable liver microsomal nanobioreactor by liquid chromatography-mass spectrometry. Biomed Chromatogr 2015; 29:1514-1521. [PMID: 25753568 DOI: 10.1002/bmc.3451] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 12/18/2014] [Accepted: 01/19/2015] [Indexed: 12/18/2022]
Abstract
Highly active and recoverable nanobioreactors prepared by immobilizing rat liver microsomes on magnetic nanoparticles (LMMNPs) were utilized in metabolic study of Angelica dahurica extracts. Five metabolites were detected in the incubation solution of the extracts and LMMNPs, which were identified by means of HPLC-MS as trans-imperatorin hydroxylate (M1), cis-imperatorin hydroxylate (M2), imperatorin epoxide (M3), trans-isoimperatorin hydroxylate (M1') and cis-isoimperatorin hydroxylate (speculated M2'). Compared with the metabolisms of imperatorin and isoimperatorin, it was found that the five metabolites were all transformed from these two major compounds present in the plant. Since no study on isoimperatorin metabolism by liver microsomal enzyme system has been reported so far, its metabolites (M1' and M3') were isolated by preparative HPLC for structure elucidation by (1) H-NMR and MS(2) analysis. M3' was identified as isoimperatorin epoxide, which is a new compound as far as its chemical structure is concerned. However, interestingly, M3' was not detected in the metabolism of the whole plant extract. In addition, a study with known chemical inhibitors on individual isozymes of the microsomal enzyme family revealed that CYP1A2 is involved in metabolisms of both isoimperatorin and imperatorin, and CYP3A4 only in that of isoimperatorin.
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Affiliation(s)
- Hai-Li Shi
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan-Wei Jia
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shu-Lin Peng
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Li-Sheng Ding
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Yi-Ming Liu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.,Department of Chemistry and Biochemistry, Jackson State University, 1400 Lynch St., Jackson, MS 39217, USA
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Schulzová V, Babička L, Hajšlová J. Furanocoumarins in celeriac from different farming systems: a 3-year study. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2012; 92:2849-2854. [PMID: 22407843 DOI: 10.1002/jsfa.5629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 01/13/2012] [Accepted: 01/23/2012] [Indexed: 05/31/2023]
Abstract
BACKGROUND The aim of this 3-year study was to investigate the effect of different celeriac cultivation strategies on the content of naturally occurring toxicants furanocoumarins, represented by psoralen, bergapten, xanthotoxin and isopimpinellin. The products from organic farming in which anaerobically fermented pig slurry was used were compared against those obtained from other treatment systems: mineral, combined and non-fertilised. RESULTS The average levels of furanocoumarins for all 3 years (determined by gas chromatography-mass spectrometry) in varieties Albin and Kompakt were 2.6 mg kg⁻¹ and 10.2 mg kg⁻¹, respectively. In all crop years higher levels were found in variety Kompakt. By using linear discriminant analysis it was possible to separate the whole data set according to variety from 85.7%, in individual crop years the recognition ability was more than 90%. According to the crop year, it was possible to separate tested samples from 70.8%, for individual variety the separation was 100%. CONCLUSIONS The method of fertilisation did not have a significant effect on the levels of plant secondary metabolites, furanocoumarins. The climatic conditions, in particular the growing periods and the celeriac variety, had an important role in the occurrence of furanocoumarins.
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Affiliation(s)
- Věra Schulzová
- Department of Food Chemistry and Analysis, Institute of Chemical Technology in Prague, Prague, Czech Republic.
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Fan G, Deng R, Zhou L, Meng X, Kuang T, Lai X, Zhang J, Zhang Y. Development of a rapid resolution liquid chromatographic method combined with chemometrics for quality control of Angelicae dahuricae radix. PHYTOCHEMICAL ANALYSIS : PCA 2012; 23:299-307. [PMID: 21960288 DOI: 10.1002/pca.1358] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2011] [Revised: 06/13/2011] [Accepted: 07/20/2011] [Indexed: 05/24/2023]
Abstract
INTRODUCTION Angelicae dahuricae radix (Baizhi) is a widely used traditional Chinese medicine, for which the traditional processing method has been sun-drying after harvesting. In recent years this method has been replaced by sulphur-fumigation for the sake of improving its appearance and pest control. Correct identification of sulphur-fumigated Baizhi and rapid finding of appropriate chemical markers for the quality control of Baizhi are of very great importance. OBJECTIVE To develop a rapid and efficient method of rapid resolution liquid chromatography (RRLC) combined with chemometrics for discriminating sulphur-fumigated Baizhi and controlling its quality. METHODOLOGY The samples were separated on a Zorbax SB-C₁₈-column with a gradient elution programme using methanol and water. The optimal RRLC method was validated in terms of linearity, precision, stability and recovery test. In addition, hierarchical clustering analysis (HCA) and principle component analysis (PCA) were applied to differentiate the different samples. RESULTS All the constituents were well separated within 18 min. The results of chemical fingerprinting and quantitative analysis showed that the sulphur-fumigated method obviously destroyed the phytochemical profiles of Baizhi. Moreover, the sun-dried and sulphur-fumigated Baizhi could be clearly separated by HCA and PCA, and the critical markers such as oxypeucedanin and imperatorin accountable for such differences were ultimately screened out. CONCLUSION This study revealed that sulphur-fumigation is an inappropriate approach for processing crude drugs and should be prohibited, and that the proposed RRLC method combined with chemometrics demonstrated an efficient strategy for quality control of Baizhi.
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Affiliation(s)
- Gang Fan
- College of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, 611137 Chengdu, People's Republic of China
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Heinke R, Franke K, Michels K, Wessjohann L, Ali NAA, Schmidt J. Analysis of furanocoumarins from Yemenite Dorstenia species by liquid chromatography/electrospray tandem mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2012; 47:7-22. [PMID: 22282084 DOI: 10.1002/jms.2017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A series of prevailing prenylated furanocoumarins from leaves of Dorstenia gigas and Dorstenia foetida (Moraceae) were investigated by liquid chromatography/electrospray tandem mass spectrometry. The mass spectral behavior of the furanocoumarins under positive ion electrospray conditions is discussed using both an ion trap and a triple quadrupole system. It is demonstrated that both methods represent valuable tools not only for the rapid classification of this type of compounds, but also with respect to their substitution pattern.
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Affiliation(s)
- Ramona Heinke
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120, Halle/Saale, Germany
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Poumale HMP, Awoussong KP, Randrianasolo R, Simo CCF, Ngadjui BT, Shiono Y. Long-chain alkanoic acid esters of lupeol from Dorstenia harmsiana Engl. (Moraceae). Nat Prod Res 2011; 26:749-55. [DOI: 10.1080/14786419.2010.551769] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Herve Martial P. Poumale
- a Department of Organic Chemistry, Faculty of Science , University of Yaoundé I , PO Box 812, Yaoundé , Cameroon
- b Department of Bioresource Engineering, Faculty of Agriculture , Yamagata University , Tsuruoka , Yamagata 997-8555 , Japan
| | - Kenzo Patrice Awoussong
- a Department of Organic Chemistry, Faculty of Science , University of Yaoundé I , PO Box 812, Yaoundé , Cameroon
| | - Rivoarison Randrianasolo
- c Department of Organic Chemistry, Faculty of Science , University of Antananarivo , PO Box 906, Antananarivo 101 , Madagascar
| | - Christophe Colombe F. Simo
- a Department of Organic Chemistry, Faculty of Science , University of Yaoundé I , PO Box 812, Yaoundé , Cameroon
| | - Bonaventure Tchaleu Ngadjui
- a Department of Organic Chemistry, Faculty of Science , University of Yaoundé I , PO Box 812, Yaoundé , Cameroon
| | - Yoshihito Shiono
- b Department of Bioresource Engineering, Faculty of Agriculture , Yamagata University , Tsuruoka , Yamagata 997-8555 , Japan
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Heinke R, Franke K, Porzel A, Wessjohann LA, Ali NAA, Schmidt J. Furanocoumarins from Dorstenia foetida. PHYTOCHEMISTRY 2011; 72:929-934. [PMID: 21492886 DOI: 10.1016/j.phytochem.2011.03.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 03/09/2011] [Accepted: 03/09/2011] [Indexed: 05/30/2023]
Abstract
The linear furanocoumarins 5-(2,3-epoxy-3-methyl-butoxy)-chalepensin, 5-methoxy-3-(3-methyl-2,3-dihydroxybutyl)-psoralen-diacetate (7), 5-methoxy-3-[3-(β-D-glucopyranosyloxy)-2-acetyloxy-3-methyl-butyl]-psoralen and 5-(3-methyl-2,3-dihydroxybutyloxy)-3-[3-(β-D-glucopyranosyloxy)-2-hydroxy-3-methyl-butyl]-psoralen, and the coumarin derivative 7-hydroxy-5-methoxy-6-carboxymethyl-3-[3-(β-D-glucopyranosyloxy)-2-hydroxy-3-methyl-butyl]-coumarin were isolated from the leaves of Dorstenia foetida (Moraceae) along with the known compounds psoralen, bergapten, isopimpinellin, phellopterin, 5-methoxychalepensin and turbinatocoumarin. Further furanocoumarins were characterized by ESI-MS/MS investigations. The nonpolar extracts of D. foetida exhibit antifungal, antibacterial and cytotoxic activity, however, no anthelminthic activity.
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Affiliation(s)
- Ramona Heinke
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle/Saale, Germany
| | - Katrin Franke
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle/Saale, Germany
| | - Andrea Porzel
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle/Saale, Germany
| | - Ludger A Wessjohann
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle/Saale, Germany
| | - Nasser A Awadh Ali
- Pharmacognosy Department, Faculty of Pharmacy, Sana'a University, P.O. Box 13150, Sana'a, Yemen
| | - Jürgen Schmidt
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle/Saale, Germany
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Bakthira H, Awadh Ali NA, Arnold N, Teichert A, Wessjohann L. Anticholinesterase activity of endemic plant extracts from Soqotra. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2011; 8:296-9. [PMID: 22468008 DOI: 10.4314/ajtcam.v8i3.65292] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A total of 30 chloroform and methanol extracts from the following endemic Soqotran plants Acridocarpus socotranus Olive, Boswellia socotranao Balf.fil, Boswellia elongata Balf. fil., Caralluma socotrana N. Br, Cephalocroton socotranus Balf.f, Croton socotranus Balf. fil.., Dendrosicycos socotrana Balf.f., Dorstenia gigas Schweinf. ex Balf. fil., Eureiandra balfourii Cogn. & Balf. fil., Kalanchoe farinaceae Balf.f, Limonium sokotranum (Vierh) Radcl. Sm), Oldenlandia pulvinata, Pulicaria diversifolia (Balf. and Pulicaria stephanocarpa Balf. were screened for their acetylcholinesterase inhibitory activity by using in vitro Ellman method at 50 and 200 µg/ml concentrations. Chloroform extracts of Croton socotranus, Boswellia socotrana, Dorstenia gigas, and Pulicaria stephanocarpa as well as methanol extracts of Eureiandra balfourii exhibited inhibitory activities higher than 50 % at concentration of 200 µg. At a concentrations of 50 µg, the chloroform extract of Croton socotranus exhibited an inhibition of 40.6 %.
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Affiliation(s)
- Hussein Bakthira
- Department of Pharmacology and Pharmaceutics, University of Aden, Aden, Yemen
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Oyama M, Nakashima KI, Ito T, Murata H, Iinuma M. New Furanocoumarins from the Fruits of Melicope triphylla. HETEROCYCLES 2011. [DOI: 10.3987/com-11-12228] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Zaugg J, Eickmeier E, Rueda DC, Hering S, Hamburger M. HPLC-based activity profiling of Angelica pubescens roots for new positive GABAA receptor modulators in Xenopus oocytes. Fitoterapia 2010; 82:434-40. [PMID: 21147202 DOI: 10.1016/j.fitote.2010.12.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 11/30/2010] [Accepted: 12/02/2010] [Indexed: 10/18/2022]
Abstract
A petroleum ether extract of the traditional Chinese herbal drug Duhuo (roots of Angelica pubescens Maxim. f. biserrata Shan et Yuan), showed significant activity in a functional two-microelectrode voltage clamp assay with Xenopus oocytes which expressed recombinant γ-aminobutyric acid type A (GABA(A)) receptors of the subtype α(1)β(2)γ(2S). HPLC-based activity profiling of the active extract revealed six compounds responsible for the GABA(A) receptor modulating activity. They were identified by microprobe NMR and high resolution mass spectrometry as columbianetin acetate (1), imperatorin (3), cnidilin (4), osthol (5), and columbianedin (6). In concentration-dependent experiments, osthol and cnidilin showed the highest potentiation of the GABA induced chloride current (273.6%±39.4% and 204.5%±33.2%, respectively at 300 μM). Bisabolangelone (2) only showed minor activity at the GABA(A) receptor. The example demonstrates that HPLC-based activity profiling is a simple and efficient method to rapidly identify GABA(A) receptor modulators in a bioactive plant extract.
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Affiliation(s)
- Janine Zaugg
- Institute of Pharmaceutical Biology, University of Basel, Basel, Switzerland
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Kang SW, Kim CY, Song DG, Pan CH, Cha KH, Lee DU, Um BH. Rapid identification of furanocoumarins in Angelica dahurica using the online LC-MMR-MS and their nitric oxide inhibitory activity in RAW 264.7 cells. PHYTOCHEMICAL ANALYSIS : PCA 2010; 21:322-7. [PMID: 20540163 DOI: 10.1002/pca.1202] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
INTRODUCTION Angelica dahurica (Fisch. Ex hoffm.) Benth. Et Hook. is a perennial herb that grows throughout Korea whose dried roots have been used to treat various diseases in Korean traditional medicine. The root extract contains diverse constituents, and it is necessary to determine the active compounds. OBJECTIVE To investigate the nitric oxide (NO) inhibitory activity in a root extract of A. dahurica and identify the most active compounds using LC-NMR-MS. METHODOLOGY In search of the anti-inflammatory constituents of A. dahurica extract, the HPLC-based activity profiling approach was used to investigate the extract's NO inhibitory activity. To directly identify the compounds, a hyphenated LC-NMR-MS technique was applied. Reversed-phase isocratic chromatography was performed using the acetonitrile-water solvent system on a C(30) column. The identification of the compounds was based on information from ESI/MS and 1H-NMR. RESULTS NO inhibitory activities for five main fractions of the extract were evaluated, which were identified by LC-NMR-MS as containing furanocoumarins: byakangelicol, oxypeucedanin, imperatorin, phellopterin and isoimperatorin. CONCLUSION The results obtained showed that the anti-inflammatory activities of A. dahurica could be linked to imperatorin and phellopterin.
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Affiliation(s)
- Suk Woo Kang
- Natural Products Research Center, KIST Gangneung Institute, Techno Valley, Gangneung, 210-340, Korea
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Simultaneous characterization and quantitation of 11 coumarins in Radix Angelicae Dahuricae by high performance liquid chromatography with electrospray tandem mass spectrometry. J Pharm Biomed Anal 2010; 51:599-605. [DOI: 10.1016/j.jpba.2009.09.030] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 09/10/2009] [Accepted: 09/19/2009] [Indexed: 11/19/2022]
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Improved separation of furocoumarins of essential oils by supercritical fluid chromatography. J Chromatogr A 2009; 1216:7088-95. [DOI: 10.1016/j.chroma.2009.08.080] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2009] [Revised: 08/20/2009] [Accepted: 08/28/2009] [Indexed: 11/18/2022]
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Zhang H, Gong C, Lv L, Xu Y, Zhao L, Zhu Z, Chai Y, Zhang G. Rapid separation and identification of furocoumarins in Angelica dahurica by high-performance liquid chromatography with diode-array detection, time-of-flight mass spectrometry and quadrupole ion trap mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2009; 23:2167-75. [PMID: 19530154 DOI: 10.1002/rcm.4123] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
High-performance liquid chromatography with diode-array detection (HPLC/DAD), time-of-flight mass spectrometry (HPLC/TOFMS) and quadrupole ion trap mass spectrometry (HPLC/QITMS) were used for separation, identification and structural analysis of furocoumarins in Angelica dahurica. Two furocoumarins (imperatorin and isoimperatorin) in Angelica dahurica extract were identified unambiguously by comparing their relative retention times, characteristic ultraviolet information and accurate mass measurement. A formula database of known furocoumarins in Angelica dahurica was established, against which the other 21 furocoumarins were identified effectively based on the accurate extract masses and formulae acquired by HPLC/TOFMS. In order to distinguish the isomers, multi-stage mass spectrometry (MSn, ion trap mass spectrometry) was used. General fragmentation behavior of the furocoumarins in the ion trap mass spectrometer was studied by the two furocoumarin standards, and their fragmentation rules in MS(n) spectra were summarized. These deduced fragmentation rules of furocoumarins were successfully implemented in distinguishing the three groups of isomers in Angelica dahurica by HPLC/QITMS. By using the three different analytical techniques, 23 furocoumarins in Angelica dahurica were tentatively identified within 30 min. Finally, HPLC/TOFMS fingerprints of Angelica dahurica were established by which it can be concluded that a rapid and effective method based on the three analytical techniques for identification of chemical components was established. This can provide help for further quality control of Angelica dahurica and pharmacology mechanism study of furocoumarins in Angelica dahurica.
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Affiliation(s)
- Hai Zhang
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Shanghai 200438, China
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Ishikawa A, Kuma T, Sasaki H, Sasaki N, Ozeki Y, Kobayashi N, Kitamura Y. Constitutive expression of bergaptol O-methyltransferase in Glehnia littoralis cell cultures. PLANT CELL REPORTS 2009; 28:257-65. [PMID: 18974989 DOI: 10.1007/s00299-008-0631-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 10/03/2008] [Accepted: 10/12/2008] [Indexed: 05/16/2023]
Abstract
We investigated whether exogenously supplied precursors of bergapten, namely umbelliferone, psoralen and bergaptol, could be utilized to produce bergapten without elicitation in Glehnia littoralis cell suspension cultures. The levels of added psoralen and bergaptol in the medium soon decreased, and this was followed by the detection of bergapten in both culture fluid and cells. Umbelliferone was also incorporated but in this case no bergapten was produced; instead, skimmin, umbelliferone monoglucoside, was detected. To determine whether conversion of psoralen to bergapten was due to enzyme induction by precursor feeding, the transcript accumulations and enzyme activities of bergaptol O-methyltransferase (BMT, EC 2.1.1.69), which catalyzes the last step of bergapten synthesis, and of phenylalanine ammonia-lyase (PAL, EC 4.3.1.5), which catalyzes the initial step of the phenylpropanoid biosynthetic pathway and is known as a marker enzyme of elicitation, were examined. The results showed that both the expression and the activity of BMT were always detected in all cells, including control cells. Since PAL was slightly induced in the cells supplied with/without precursors, phenylethyl alcohol (PEA, a competitive inhibitor of PAL) was applied to suspension cells prior to the addition of psoralen. PAL activity was effectively inhibited by PEA at 1-5 mM concentrations. Under these conditions, PEA did not affect bergapten production by cell cultures fed with psoralen at all. These results demonstrate that BMT is constitutively expressed in G. littoralis cell cultures.
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Affiliation(s)
- Aya Ishikawa
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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Kang J, Zhou L, Sun J, Han J, Guo DA. Chromatographic fingerprint analysis and characterization of furocoumarins in the roots of Angelica dahurica by HPLC/DAD/ESI-MSn technique. J Pharm Biomed Anal 2008; 47:778-85. [DOI: 10.1016/j.jpba.2008.03.010] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 03/08/2008] [Accepted: 03/10/2008] [Indexed: 10/22/2022]
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Chung LY, Yap KF, Goh SH, Mustafa MR, Imiyabir Z. Muscarinic receptor binding activity of polyoxygenated flavones from Melicope subunifoliolata. PHYTOCHEMISTRY 2008; 69:1548-1554. [PMID: 18334259 DOI: 10.1016/j.phytochem.2008.01.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2007] [Revised: 01/30/2008] [Accepted: 01/31/2008] [Indexed: 05/26/2023]
Abstract
The bark extract of Melicope subunifoliolata (Stapf) T.G. Hartley showed competitive muscarinic receptor binding activity. Six polymethoxyflavones [melibentin (1); melisimplexin (3); 3,3',4',5,7-pentamethoxyflavone (4); meliternatin (5); 3,5,8-trimethoxy-3',4',6,7-bismethylenedioxyflavone (6); and isokanugin (7)] and one furanocoumarin [5-methoxy-8-geranyloxypsoralen (2)] were isolated from the bark extract. Compounds 2 and 6 were isolated for the first time from M. subunifoliolata. The methoxyflavones (compounds 1, 3, 4, 5, 6, and 7) show moderate inhibition in a muscarinic receptor binding assay, while the furanocoumarin (compound 2) is inactive. The potency of the methoxyflavones to inhibit [(3)H]NMS-muscarinic receptor binding is influenced by the position and number of methoxy substitution. The results suggest these compounds are probably muscarinic modulators, agonists or partial agonists/antagonists.
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Affiliation(s)
- L Y Chung
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
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Ma Z, Xu W, Liu-Chen LY, Lee DYW. Novel coumarin glycoside and phenethyl vanillate from Notopterygium forbesii and their binding affinities for opioid and dopamine receptors. Bioorg Med Chem 2008; 16:3218-23. [PMID: 18166466 PMCID: PMC2366027 DOI: 10.1016/j.bmc.2007.12.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Revised: 12/06/2007] [Accepted: 12/11/2007] [Indexed: 10/22/2022]
Abstract
Bioactivity-guided fractionation of Notopterygium forbesii has resulted in the isolation of one new coumarin glycoside and one new phenethyl vanillate, together with seventeen known compounds. The structures of these compounds were characterized by spectroscopic methods. These compounds were evaluated for their binding affinities to the opioid and dopamine receptors, and falcarindiol showed weak binding affinities to opioid receptors and moderate affinity for D1 receptor (K(i)=192+/-6 nM).
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Affiliation(s)
- Zhongze Ma
- Bio-Organic and Natural Products Laboratory, McLean Hospital, Harvard Medical School, 115 Mill Street, Belmont, MA 02478, USA
| | - Wei Xu
- Department of Pharmacology and Center for Substance Abuse Research, School of Medicine, Temple University, 3420 N. Broad St, Philadelphia, PA 19140, USA
| | - Lee-Yuan Liu-Chen
- Department of Pharmacology and Center for Substance Abuse Research, School of Medicine, Temple University, 3420 N. Broad St, Philadelphia, PA 19140, USA
| | - David Y. W. Lee
- Bio-Organic and Natural Products Laboratory, McLean Hospital, Harvard Medical School, 115 Mill Street, Belmont, MA 02478, USA
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Correa C, Cruz MDC, Jiménez F, Zepeda LG, Tamariz J. A New Synthetic Route of 2-Aroyl- and 2-Benzyl-Benzofurans and their Application in the Total Synthesis of a Metabolite Isolated from Dorstenia gigas. Aust J Chem 2008. [DOI: 10.1071/ch08243] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The Lewis acid-catalyzed cyclization of the (Z)-3-(dimethylamino)-2-aryloxy-1-arylprop-2-en-1-ones 4a–h leads to a regioselective and short synthesis of 2-aroylbenzofurans 2a–h. The Wolff–Kishner reduction of the latter yielded a series of substituted 2-benzylbenzofurans 3a–h. This methodology was applied in the first total synthesis of the metabolite 2-(4-hydroxybenzyl)-6-methoxybenzofuran 1, which was isolated from the tropical plant Dorstenia gigas, and obtained through a six-step route and in a 24% overall yield.
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Chinou I, Widelski J, Fokialakis N, Magiatis P, Glowniak K. Coumarins from Peucedanum luxurians. Fitoterapia 2007; 78:448-9. [PMID: 17582700 DOI: 10.1016/j.fitote.2007.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2005] [Accepted: 04/03/2007] [Indexed: 11/17/2022]
Abstract
Ten coumarins were isolated from Peucedanum luxurians. The rare coumarins stenocarpin, stenocarpin isobutyrate, officinalin, officinalin isobutyrate, 8-methoxypeucedanin and the known xanthotoxin, isoimperatorin, bergaptene, peucedanin and cnidilin were isolated. All isolated compound were identified by means of spectral data.
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Affiliation(s)
- Ioanna Chinou
- Department of Pharmacognosy and Chemistry of Natural Products, Faculty of Pharmacy, University of Athens, Athens, Greece.
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Kuete V, Simo IK, Ngameni B, Bigoga JD, Watchueng J, Kapguep RN, Etoa FX, Tchaleu BN, Beng VP. Antimicrobial activity of the methanolic extract, fractions and four flavonoids from the twigs of Dorstenia angusticornis Engl. (Moraceae). JOURNAL OF ETHNOPHARMACOLOGY 2007; 112:271-7. [PMID: 17428630 DOI: 10.1016/j.jep.2007.03.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2006] [Revised: 02/18/2007] [Accepted: 03/02/2007] [Indexed: 05/14/2023]
Abstract
The methanolic extract (DAT), fractions (FRS) and four flavonoids, namely Gancaonin Q (1), Stipulin (2), Angusticornin B (3) and Bartericin A (4), isolated from the twigs of Dorstenia angusticornis (Moraceae), were tested for their in vitro antimicrobial activity. A total of 22 microbial cultures belonging to three Candida species, 6 Gram-positive and 13 Gram-negative bacterial species were used in this study. The inhibition zones (IZ) of the test samples against the pathogens were determined by the Agar Hole Diffusion test while the Liquid dilution method was used to determine their minimal inhibition concentrations (MIC) and their minimal microbicidal concentrations (MMC). Results indicate that DAT, compounds 3 and 4 inhibited the growth of all test pathogens. DAT, FRS 3-6, compounds 3 and 4 were both antibacterial and anticandidal. A single-dose oral toxicity performed in accordance with the OPPTS 870.1100 and OECD 401guideline showed that DAT was not toxic. Our findings provide a possible basis for the potential use of twigs from Dorstenia angusticornis in the treatment of infectious diseases.
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Affiliation(s)
- Victor Kuete
- Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. box. 812 Yaoundé, Cameroon.
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Ngameni B, Touaibia M, Patnam R, Belkaid A, Sonna P, Ngadjui BT, Annabi B, Roy R. Inhibition of MMP-2 secretion from brain tumor cells suggests chemopreventive properties of a furanocoumarin glycoside and of chalcones isolated from the twigs of Dorstenia turbinata. PHYTOCHEMISTRY 2006; 67:2573-9. [PMID: 17070879 DOI: 10.1016/j.phytochem.2006.09.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2006] [Revised: 08/22/2006] [Accepted: 09/18/2006] [Indexed: 05/12/2023]
Abstract
A furanocoumarin glycoside new named turbinatocoumarin (1) was isolated from the twigs of Dorstenia turbinata. The structure of turbinatocoumarin (1) was assigned as 5-methoxy-3-[3-(beta-glucopyranosyloxy)-2-hydroxy-3-methylbutyl]psoralen by means of spectroscopic analysis. Known compounds have also been isolated from this genus and identified as (2'S, 3'R)-3'-hydroxymarmesin (2), 5-methoxy-3-(3-methyl-2,3-dihydroxybutyl)psoralen (3), psoralen (4), kanzonol C (5) which was isolated for the first time from this genus, 4-hydroxylonchocarpin (6), umbelliferone, 4-hydroxy-3-methoxybenzaldehyde and 4-methoxyphenol. As part of our continuing search for potential naturally-occurring antitumor drug candidates, the inhibition of matrix metalloproteinase (MMP)-2 secretion from brain tumor-derived glioblastoma cells by the isolated compounds 1, 3, 5, and 6 was evaluated by zymography and compared to the documented naturally-occurring MMP secretion inhibitors chlorogenic acid (CHL) and epigallocatechin-3-gallate (EGCg). Among the compounds tested, the inhibiting MMP secretion concentrations ranged from 0.025 to 250 microM with up to 80% inhibition. The inhibitory activities of compounds 5 and 6 were found comparable to the common reference compounds CHL and EGCg. This suggests that alternate sources can be explored and exploited for the availability of chemopreventive molecules.
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Affiliation(s)
- Bathelemy Ngameni
- Département de Chimie, Université du Québec à Montréal, Montreal, 2101 Jeanne-Mance, CP 8888, Succ., Centre-ville, Quebec, Canada H3C 3P8
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Cardoso CAL, Pires AE, Honda NK. A method for quantitative determination of furanocoumarins in capsules and tablets of phytochemical preparations. Chem Pharm Bull (Tokyo) 2006; 54:442-7. [PMID: 16595942 DOI: 10.1248/cpb.54.442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A method for sample preparation and analysis by high-performance liquid chromatography with UV detection (HPLC-UV) was developed for analysis of psoralen, bergapten and 5-[3-(4,5-dihydro-5,5-dimethyl-4-oxo-2-furanyl)-butoxy]-7H-furo[3-2-g][1]benzopyran-7-one in capsules and tablets employed in Brazil for certain illnesses. The linearity, accuracy, the inter- and intra-day precision of the procedure were evaluated. Analytical curves for furanocoumarins were linear in the range of 1.0-50.0 microg/ml. The recoveries of the furanocoumarins in the products analyzed were 97.3-99.5%, and the percent coefficient of variation for the quantitative analysis of the furanocoumarins in the analyses was under 5%. For inter-equipment study gas chromatography (GC) was employed.
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Ngadjui BT, Watchueng J, Keumedjio F, Ngameni B, Simo IK, Abegaz BM. Prenylated chalcones, flavone and other constituents of the twigs of Dorstenia angusticornis and Dorstenia barteri var. subtriangularis. PHYTOCHEMISTRY 2005; 66:687-692. [PMID: 15771891 DOI: 10.1016/j.phytochem.2004.10.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2004] [Revised: 10/15/2004] [Indexed: 05/24/2023]
Abstract
The twigs of Dorstenia angusticornis and Dorstenia barteri var. subtriangularis yielded 16 compounds. Two novel diprenylated chalcones: 3,5'-di-(2-hydroxy-3-methylbut-3-enyl)-4,2',4'-trihydroxychalcone, 3, 4-(2,2-dimethylpyrano)-3'-(2-hydroxy-3-methylbut-3-enyl)-2',4'-dihydroxychalcone and the known stipulin were isolated from both species. 3-(2-Hydroxy-3-methylbut-3-enyl)-5'-(3,3-dimethylallyl)-4,2',4'-trihydroxychalcone and the known compounds: 4-hydroxylonchocarpin, kanzonol B, bartericins A, B, C and 3'-(2-hydroxy -3-methylbut-3-enyl)-4,2',4'-trihydroxychalcone were isolated from D. barteri while the known compounds: gancaonin Q, paratocarpins C, F, and lupeol were obtained from Dorstenia angusticornis. beta-Sitosterol and its beta-d-glucopyranoside were isolated from both species. Structures of these secondary metabolites were established using spectroscopic analysis, especially, NMR spectra in conjunction with 2D experiments, COSY, HMQC and HMBC.
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Affiliation(s)
- Bonaventure T Ngadjui
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, BP 812, Yaoundé, Cameroon.
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Frérot E, Decorzant E. Quantification of total furocoumarins in citrus oils by HPLC coupled with UV, fluorescence, and mass detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2004; 52:6879-6886. [PMID: 15537290 DOI: 10.1021/jf040164p] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Furocoumarins or psoralens represent a class of photosensitizers whose use level is likely to be restricted to 1 ppm in cosmetic products by the EU. A reversed-phase HPLC method was developed to separate the 15 main furocoumarins present in citrus oils. Quantification by UV, fluorescence, or mass detectors was compared in terms of linearity and limit of detection. Cold-pressed oils of different citrus species were analyzed using this method. This method could be implemented in quality control laboratories equipped with an HPLC system and a UV diode array detector. Because of possible coelutions, the UV-spectral data should be carefully examined to avoid misleading interpretations of peaks.
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Affiliation(s)
- Eric Frérot
- Firmenich SA, Corporate R&D Division, Post Office Box 239, CH-1211 Geneva 8, Switzerland.
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Pires AE, Honda NK, Cardoso CAL. A method for fast determination of psoralens in oral solutions of phytomedicines using liquid chromatography. J Pharm Biomed Anal 2004; 36:415-20. [PMID: 15496338 DOI: 10.1016/j.jpba.2004.06.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2003] [Revised: 05/25/2004] [Accepted: 06/29/2004] [Indexed: 11/20/2022]
Abstract
A method for sample preparation and analysis by high performance liquid chromatography with UV detection (HPLC-UV) has been developed for routine analysis of psoralen and bergapten, photosensitizing compounds, in oral solutions of phytomedicines employed in Brazil for some illnesses. The linearity, accuracy, the inter- and intra-day precision of the procedure were evaluated. Calibration curves for psoralen and bergapten were linear in the range of 1.0-600.0 microg ml(-1) and 1.0-400.0 microg ml(-1) respectively. The recoveries of the psoralens in the oral solutions analysed were 94.43-99.97%. The percentage coefficient of variation (CV) of the quantitative analysis of the psoralens in the products analysis was within 5%. In inter-equipment study was employed gas chromatography-flame ionization (CG-FID) detection.
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Affiliation(s)
- Adriana Elias Pires
- Departamento de Química, Universidade Federal de Mato Grosso do Sul, Caixa Postal 649, 79070-900 Campo Grande/MS, Brazil.
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Bertrand C, Fabre N, Moulis C. A new coumarin glucoside, coumarins and alkaloids from Ruta corsica roots. Fitoterapia 2004; 75:242-4. [PMID: 15030936 DOI: 10.1016/j.fitote.2003.12.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2003] [Accepted: 12/12/2003] [Indexed: 11/21/2022]
Abstract
A new coumarin glucoside, 3'(S)-hydroxy-2',2'-dimethyl-dihydropyranocoumarin-8-beta-d-glucopyranosyl, one coumarin, five furanocoumarins, three bicoumarins, three quinoline alkaloids and one sinapoyl sucrose derivative have been isolated from the roots of Ruta corsica.
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Affiliation(s)
- Cédric Bertrand
- Laboratoire Pharmacophores Redox, Phytochimie et Radiobiologie, EA 3030. Faculté des Sciences Pharmaceutiques, Université Paul Sabatier. 35, chemin des Maraîchers, 310362 Toulouse 4, France.
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The Chemistry and Pharmacology of the Genus Dorstenia (Moraceae). ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s1572-5995(03)80018-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Ngadjui BT, Dongo E, Abegaz BM, Fotso S, Tamboue H. Dinklagins A, B and C: three prenylated flavonoids and other constituents from the twigs of Dorstenia dinklagei. PHYTOCHEMISTRY 2002; 61:99-104. [PMID: 12165307 DOI: 10.1016/s0031-9422(02)00130-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Three prenylated flavonoids, dinklagins A, B and C identified, respectively, as (-)-6-(3,3-dimethylallyl)-7-hydroxy-6''', 6'''-dimethylchromeno-(4',3',2''',3''')-flavanone, (+)-5,4',5"xi-trihydroxy-6'',6''-dimethylchromano-(7,6,2'',3'')-flavone and (+)6-(2xi-hydroxy-3-methyl-3-butenyl)-5,7,4'-trihydroxyflavone were isolated from the twigs of Dorstenia dinklagei together with the known 6-prenylapigenin, 4-hydroxylonchocarpin, stipulin and 5,4'-dihydroxy-6'',6''-dimethylchromano-(7,6,2'',3'')-flavone. Their structures were determined on the basis of spectral data and by comparison with data reported in the literature and with authentic specimens for known compounds.
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Affiliation(s)
- Bonaventure T Ngadjui
- Department of Organic Chemistry, University of Yaounde 1, BP 812, Yaounde, Cameroon.
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Cardoso CAL, Vilegas W, Barison A, Honda NK. Simultaneous determination of furanocoumarins in infusions and decoctions from "Carapiá" (dorstenia species) by high-performance liquid chromatography. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2002; 50:1465-1469. [PMID: 11879022 DOI: 10.1021/jf0107095] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The use of furanocoumarins, which are photosensitizing compounds, combined with exposure to UV-A radiation is a common treatment for vitiligo, psoriasis, and a number of other skin diseases. Although furanocoumarins plus UV-A treatment is highly effective, several studies have shown that exposure to high doses increases the risk to development of cutaneus carcinoma. Several Dorstenia species are used in folk medicine, mainly against skin diseases, because of the presence of biologically active compounds. We present here analysis of the chemical composition of furanocoumarins from infusion and decoction of "Carapiá" (Dorstenia species), which is used in Brazil against several diseases. We have employed high-performance liquid chromatography (HPLC) procedures for the quantitative determination of psoralen, bergapten, and isopimpinellin. The contents of furanocoumarins revealed an insignificant difference between infusion and decoction. Dorstenia tubicina and D. asaroides contained psoralen and bergapten only in the rhizomes, whereas D. vitifolia shows solely isopimpinellin in both rhizomes and aerial parts.
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Affiliation(s)
- Cláudia A L Cardoso
- Universidade Estadual de Mato Grosso do Sul, Rod. Ithaum, Km 12, 79804-970, Dourados/MS, Brazil.
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Chapter 5.3 Five-membered ring systems: Furans and benzofurans. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0959-6380(02)80009-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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