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Raza A, Ali T, Naeem M, Asim M, Hussain F, Li Z, Nasir A. Biochemical characterization of bioinspired nanosuspensions from Swertia chirayita extract and their therapeutic effects through nanotechnology approach. PLoS One 2024; 19:e0293116. [PMID: 38330034 PMCID: PMC10852254 DOI: 10.1371/journal.pone.0293116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 09/26/2023] [Indexed: 02/10/2024] Open
Abstract
Swertia chirayita is used as a traditional medicinal plant due to its pharmacological activities, including antioxidant, antidiabetic, antimicrobial, and cytotoxic. This study was aimed to evaluate the therapeutic efficacy of newly synthesized nanosuspensions from Swertia chirayita through nanotechnology for enhanced bioactivities. Biochemical characterization was carried out through spectroscopic analyses of HPLC and FTIR. Results revealed that extract contained higher TPCs (569.6 ± 7.8 mg GAE/100 g)) and TFCs (368.5 ± 9.39 mg CE/100 g) than S. chirayita nanosuspension, TPCs (500.6 ± 7.8 500.6 ± 7.8 mg GAE/100 g) and TFCs (229.5± 3.85 mg CE/100 g). Antioxidant activity was evaluated through DPPH scavenging assay, and nanosuspension exhibited a lower DPPH free radical scavenging potential (06 ±3.61) than extract (28.9± 3.85). Anti-dabetic potential was assessed throughα-amylase inhibition and anti-glycation assays. Extract showed higher (41.4%) antiglycation potential than 35.85% nanosuspension and 19.5% α-amylase inhibitory potential than 5% nanosuspension. Biofilm inhibition activity against E. coli was higher in nanosuspension (69.12%) than extract (62.08%). The extract showed high cytotoxicity potential (51.86%) than nanosuspension (33.63%). These nanosuspensions possessed enhanced bioactivities for therapeutic applications could be explored further for the development of new drugs.
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Affiliation(s)
- Ayesha Raza
- Clinico-Molecular Biochemistry Laboratory, Department of Biochemistry, Faculty of Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Tayyab Ali
- Clinico-Molecular Biochemistry Laboratory, Department of Biochemistry, Faculty of Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Naeem
- College of Life Science, Hebei Normal University, Shijiazhuang, China
| | - Muhammad Asim
- Clinico-Molecular Biochemistry Laboratory, Department of Biochemistry, Faculty of Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Fatma Hussain
- Clinico-Molecular Biochemistry Laboratory, Department of Biochemistry, Faculty of Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Zhiye Li
- Department of Pharmacy, Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Abdul Nasir
- Medical Research Center, Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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He X, Chen M, Sun H, Guo X, Sun Y, Li L, Zhu J, Xia G, Zang H. Multidirectional insights into the phytochemical, biological, and multivariate analysis of extracts from the aerial part of Swertia perennis Linnaeus. Nat Prod Res 2024; 38:135-139. [PMID: 35895027 DOI: 10.1080/14786419.2022.2103812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/17/2022] [Indexed: 10/16/2022]
Abstract
Swertia perennis Linnaeus (SP) has been utilised to treat gastritis. We report the qualitative and quantitative phytochemical analysis, antioxidant and enzyme inhibitory activities of SP. The correlation between the biological activities and total bioactive contents of the extracts was also studied via multivariate analysis. Methanol extract contained many active compounds and exhibited good antioxidant activity. Therefore, this was selected for further phytochemical profiling and stability studies. Fourteen compounds were identified by ultra-performance liquid chromatography-electrospray ionisation-orbitrap-mass spectrometry for the first time from this plant. Iridoids, xanthones, and flavonoids were the main components. Methanol extract exhibited good stability and antioxidant capacity in stability studies, with low toxicity, and showed a protective effect on the oxidation of olive and sunflower oils. SP has the potential to be developed and used as an antioxidant, or as urease and XO inhibitors, and its methanol extract could be used as a natural oil stabiliser.
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Affiliation(s)
- Xu He
- College of Medicine, Yanbian University, Yanji, China
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
| | - Meihua Chen
- College of Medicine, Yanbian University, Yanji, China
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
| | - Hui Sun
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
| | - Xin Guo
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
| | - Yue Sun
- College of Medicine, Yanbian University, Yanji, China
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
| | - Li Li
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
| | - Junyi Zhu
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
| | - Guangqing Xia
- College of Medicine, Yanbian University, Yanji, China
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
- Key Laboratory of Evaluation and Application of Changbai Mountain Biological Gerplasm Resources of Jilin Province, Tonghua, China
| | - Hao Zang
- College of Medicine, Yanbian University, Yanji, China
- School of Pharmacy and Medicine, Green Medicinal Chemistry Laboratory, Tonghua Normal University, Tonghua, China
- Key Laboratory of Evaluation and Application of Changbai Mountain Biological Gerplasm Resources of Jilin Province, Tonghua, China
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Feng X, Yang C, Wang WX, Wang JT. Isolation and identification of novel phenolic and lignan glycosides from Swertia davidii Franch. J Asian Nat Prod Res 2023; 25:992-998. [PMID: 36927194 DOI: 10.1080/10286020.2023.2190520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Phytochemical analyses of Swertia davidii Franch. extracts using column chromatography and semi-preparative HPLC were performed. Two novel phenolic glycosides named swertiosides A and B (compounds 1 and 2, respectively) were isolated and characterized. Four known phenolic glycosides were also extracted (compounds 3-6). The structural characteristics of these novel compounds were analyzed using 1D, 2D NMR, and HRMS. All six compounds have never been isolated from this particular plant species before this study. Subsequent assessment of bioactive properties suggested that compounds 1 and 2 exhibited moderate levels of cytotoxicity.
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Affiliation(s)
- Xin Feng
- School of Pharmaceutical Economics and Management, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Ce Yang
- School of Pharmacy, Chongqing Three Gorges Medical College, Chongqing 404120, China
| | - Wen-Xiang Wang
- School of Pharmacy, Chongqing Three Gorges Medical College, Chongqing 404120, China
| | - Ju-Tao Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China
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Zhang M, Zhao B, Li L, Nie L, Li P, Sun J, Wu A, Zang H. A rapid extraction process monitoring of Swertia mussotii Franch. With near infrared spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2023; 295:122609. [PMID: 36921517 DOI: 10.1016/j.saa.2023.122609] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Swertia mussotii Franch. (SMF), a traditional Tibetan medicine, which has miraculous effect on treating hepatitis diseases. However, there is no research on its entire production process, and invisible production process has seriously hindered the SMF modern development. In this study, principal component analysis (PCA), subtractive spectroscopy, and two-dimensional correlation spectroscopy (2D-COS) were used to explain changes of characteristic groups in the extraction process. Four main characteristic peaks at 1884 nm, 1944 nm, 2246 nm and 2308 nm were identified to describe the changes of molecular structure information of total active components in SMF extraction process. In addition, multi critical quality attributes (CQAs) models were established by near-infrared spectroscopy (NIRS) combined with the total quantum statistical moment (TQSM). The coefficients of determination (R2eval and R2ival) were both greater than 0.99. The ratios of the standard deviation of validation to the standard error of the prediction (RPDe and RPDi) were greater than five. The quantitative model of AUCT could save time on primary data measurement by not requiring determination of indicator components compared with others. In conclusion, these results demonstrated that it was feasible to understand the SMF extraction process through AUCT and characteristic groups. These could realize the visual digital characterization and quality stability of the SMF extraction process.
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Affiliation(s)
- Mengqi Zhang
- National Medical Products Administration Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Bing Zhao
- National Medical Products Administration Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Lian Li
- National Medical Products Administration Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Lei Nie
- National Medical Products Administration Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Peipei Li
- Qinghai Provincial Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, 810008, China
| | - Jing Sun
- Qinghai Provincial Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, 810008, China
| | - Aoli Wu
- National Medical Products Administration Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Hengchang Zang
- National Medical Products Administration Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China; National Glycoengineering Research Center, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Chemical Biology (Ministry of Education), Shandong University, Jinan, Shandong, 250012, China.
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Liu J, Yan Q, Wang LX, He XP, Hu H, Liu YC, Li D, Liu Y, Guo K, Li SH. Secoiridoids from the traditional Chinese medicine Swertia pseudochinensis. Phytochemistry 2023; 210:113642. [PMID: 36933879 DOI: 10.1016/j.phytochem.2023.113642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/09/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Detailed phytochemical investigation on the traditional Chinese medicine Swertia pseudochinensis Hara led to the isolation of ten undescribed secoiridoids and fifteen known analogs. Their structures were elucidated by extensive spectroscopic analysis (including 1D and 2D NMR, and HRESIMS). Selected isolates were assayed for their anti-inflammatory and antibacterial activities, and moderate anti-inflammatory activity via inhibiting the secretion of cytokines IL-6 and TNF-α in macrophages RAW264.7 induced by LPS were observed. Antibacterial activity against Staphylococcus aureus was not found at 100 μM.
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Affiliation(s)
- Jie Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, And Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Qin Yan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, And Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Li-Xia Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, And Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Xiao-Ping He
- State Key Laboratory of Southwestern Chinese Medicine Resources, And Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Hong Hu
- State Key Laboratory of Southwestern Chinese Medicine Resources, And Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, And Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Dan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, And Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, And Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, And Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, And Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, And Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
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Moharana M, Pattanayak SK, Khan F. Molecular recognition of bio-active triterpenoids from Swertia chirayita towards hepatitis Delta antigen: a mechanism through docking, dynamics simulation, Gibbs free energy landscape. J Biomol Struct Dyn 2023; 41:14651-14664. [PMID: 36856037 DOI: 10.1080/07391102.2023.2184173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 02/18/2023] [Indexed: 03/02/2023]
Abstract
Medicinal plants the underpinning of indigenous herbal serve, are the possible source of key compounds for the development of new drugs. Hepatitis D, one of the most widespread infectious diseases associated with global public health issues. Therefore, we aim to screen natural compounds to find out potent inhibitor towards hepatitis delta antigen. Through ADMET investigation, we have screened twenty phytochemicals for this study. Additionally, using molecular docking, these phytochemicals were docked with the HDV protease which signifies the phytochemicals beta-amyrin, chiratenol, episwertenol and swertanone have a significant capability to bind with hepatitis D virus protein. The docking study was further accompanied by analyzes RMSD, RMSF, Rg, SASA, Hbond number, and principal component analysis through 100 ns MD simulations. Based on our principal component analysis, beta-amyrin, chiratenol, episwertenol and swertanone phytochemicals can be a potential drug candidates for inhibition of hepatitis D. The above observation is also supported by our Gibbs free energy landscape study. The potential therapeutic characteristics of the phytochemicals against hepatitis D inhibition offer additional support for the in vitro and in vivo studies in future.
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Affiliation(s)
- Maheswata Moharana
- Department of Chemistry, National Institute of Technology, Raipur, India
| | | | - Fahmida Khan
- Department of Chemistry, National Institute of Technology, Raipur, India
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Ye X, Zhang T, Han H. Metabolite Profiling of Swertia cincta Extract in Rats and Pharmacokinetics Study of Three Bioactive Compounds Using UHPLC-MS/MS. Planta Med 2023; 89:333-346. [PMID: 36100253 DOI: 10.1055/a-1942-5504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Swertia cincta, a plant of the genus Swertia in Gentianceae, has "heat-clearing" and detoxifying effects that normalize the gallbladder function in the treatment of jaundice. Although numerous studies on Swertia cincta have been performed, the absorption and pharmacokinetic behaviors remain unclear. In this study, the compounds of Swertia cincta in serum, bile, feces, and urine of rats were analyzed using a ultra-high-performance liquid chromatography-tandem mass spectrometry. A total of 9 prototype components and 48 metabolites were detected in biological samples. Furthermore, we determined the main components absorbed in the blood of Swertia cincta and established a method for simultaneously determining these components (sweroside, swertiamarin, and gentiopicroside) in positive ionization mode within 6 min. The quantitative method was successfully applied for the multiple-component pharmacokinetic study of Swertia cincta.
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Affiliation(s)
- Xiaoyin Ye
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tong Zhang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Han Han
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Raj D, Sharma V, Upadhyaya A, Kumar N, Joshi R, Acharya V, Kumar D, Patial V. Swertia purpurascens Wall ethanolic extract mitigates hepatic fibrosis and restores hepatic hepcidin levels via inhibition of TGFβ/SMAD/NFκB signaling in rats. J Ethnopharmacol 2022; 284:114741. [PMID: 34699946 DOI: 10.1016/j.jep.2021.114741] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/28/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Swertia purpurascens Wall belongs to a well-known genus in traditional systems of medicine worldwide. In folklore, it is used to treat various ailments, including hepatic disorders, as an alternative to the endangered species Swertia chirayita. However, the therapeutic potential of Swertia purpurascens Wall against hepatic fibrosis has not been validated yet. AIM OF THE STUDY The present study was planned to evaluate the efficacy of the Swertia purpurascens Wall extract (SPE) against hepatic fibrosis and elucidate the underlying mechanism of action. MATERIALS AND METHODS The metabolite profiling of the SPE was done using UHPLC-QTOF-MS/MS. The acute oral toxicity study of SPE at 2 g/kg BW dose was done in rats. Further, the liver fibrosis was induced by the CCl4 intoxication, and the efficacy of SPE at three doses (100, 200 and 400 mg/kg BW) was evaluated by studying biochemical parameters, histopathology, immunohistochemistry, qRT-PCR, western blotting and in silico analysis. RESULTS UHPLC-QTOF-MS/MS analysis revealed the presence of a total of 23 compounds in SPE. Acute oral toxicity study of SPE at 2 g/kg BW showed no harmful effects in rats. Further, the liver fibrosis was induced by the CCl4 administration, and the efficacy of SPE was evaluated at three doses (100, 200 and 400 mg/kg BW). SPE treatment significantly improved the body weight gain, the relative liver weight, serum liver injury markers and endogenous antioxidant enzyme levels in the CCl4-treated rats. SPE also recovered the altered liver histology and effectively reduced the fibrotic tissue deposition in the hepatic parenchyma. Further, SPE significantly inhibited the fibrotic (TGFβ, αSMA, SMADs and Col1A), proinflammatory markers (NFκB, TNFα and IL1β) and apoptosis in the liver tissue. Interestingly, SPE treatment also restored the altered hepcidin levels in the liver tissue. In silico study revealed the potential of various metabolites as drug candidates and their interaction with target proteins. CONCLUSION Altogether, SPE showed its therapeutic potential against CCl4-induced hepatic fibrosis by restoring the hepatic hepcidin levels and inhibiting TGFβ/SMAD/NFκB signaling in rats.
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Affiliation(s)
- Desh Raj
- Pharmacology and Toxicology Laboratory, Dietetics & Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India; PG Department of Dravyaguna, Rajiv Gandhi Govt. Post Graduate Ayurvedic College and Hospital, Paprola, 176115, H.P, India
| | - Vinesh Sharma
- Pharmacology and Toxicology Laboratory, Dietetics & Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India; Academy of Scientific and Innovative Research AcSIR, Ghaziabad, 201002, U.P, India
| | - Ashwani Upadhyaya
- PG Department of Dravyaguna, Rajiv Gandhi Govt. Post Graduate Ayurvedic College and Hospital, Paprola, 176115, H.P, India
| | - Neeraj Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India; Academy of Scientific and Innovative Research AcSIR, Ghaziabad, 201002, U.P, India
| | - Robin Joshi
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India; Academy of Scientific and Innovative Research AcSIR, Ghaziabad, 201002, U.P, India
| | - Vishal Acharya
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India; Academy of Scientific and Innovative Research AcSIR, Ghaziabad, 201002, U.P, India
| | - Dinesh Kumar
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India; Academy of Scientific and Innovative Research AcSIR, Ghaziabad, 201002, U.P, India
| | - Vikram Patial
- Pharmacology and Toxicology Laboratory, Dietetics & Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P, India; Academy of Scientific and Innovative Research AcSIR, Ghaziabad, 201002, U.P, India.
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Ahluwalia V, Pandey N, Mishra BB, Kumar J. Isolation, optimized extraction, and ultra-high performance liquid chromatography with photodiode array method for quantitative analysis of chiratol in Swertia paniculata. J Sep Sci 2021; 44:3904-3913. [PMID: 34463429 DOI: 10.1002/jssc.202100538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/19/2021] [Accepted: 08/22/2021] [Indexed: 01/06/2023]
Abstract
The global natural product-based industry is growing fast with the introduction of new phytochemicals and herbal extract products from different geographical regions. Swertia paniculata is a well-known plant with medicinal properties; however, the quality control for its major phytochemical constituents from the Himalayan geographical region is nevertheless reported. Therefore, the first objective of this investigation was to characterize and optimize the extraction process while the second objective was to validate a quantitative analytical method for chiratol from S. paniculata herbal extract. The chiratol was characterized with spectral analysis. The optimum extraction condition for the highest yield of metabolite was realized in chloroform as a solvent system under ultrasonication. The ultra-high performance liquid chromatography coupled with photodiode array detection method for analytical quantification was validated for specificity, linearity, limits of detection, limits of quantification, precision, repeatability, recovery, and robustness using Eclipse Plus C18 column (100 mm × 4.6 mm × 3.5 μm id). The gradient elution of water/acetonitrile as mobile phase was used at a flow rate of 0.5 ml/min. The recovery percentage was very satisfactory with values within specification. The robustness parameters showed no substantial influence of evaluated parameters by the Youden test. The developed method was ascertained to be appropriate for the proposed purpose.
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Affiliation(s)
- Vivek Ahluwalia
- Bioproduct Chemistry Laboratory, Center of Innovative and Applied Bioprocessing (CIAB), Mohali, India
- Institute of Pesticide Formulation Technology (IPFT), Gurugram, India
| | - Nishant Pandey
- Bioproduct Chemistry Laboratory, Center of Innovative and Applied Bioprocessing (CIAB), Mohali, India
| | - Bhuwan B Mishra
- Bioproduct Chemistry Laboratory, Center of Innovative and Applied Bioprocessing (CIAB), Mohali, India
| | - Jitendra Kumar
- Institute of Pesticide Formulation Technology (IPFT), Gurugram, India
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Zhang Y, Zhou Q, Ding X, Ma J, Tan G. Chemical profile of Swertia mussotii Franch and its potential targets against liver fibrosis revealed by cross-platform metabolomics. J Ethnopharmacol 2021; 274:114051. [PMID: 33746001 DOI: 10.1016/j.jep.2021.114051] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/14/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Swertia mussotii Franch (SMF) is a well-known Tibetan medicine for the treatment of liver disease in China. However, the chemical profile and molecular mechanism of SMF against hepatic fibrosis are not yet well explored. AIM OF THE STUDY This work aimed to elucidate the chemical profile of SMF and investigate the action mechanisms of SMF against carbon tetrachloride (CCl4)-induced hepatic fibrosis. MATERIALS AND METHODS Ultra performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-Q-TOFMS) and UNIFI platform was firstly employed to reveal the chemical profile of SMF. Cross-platform serum metabolomics based on gas chromatography/liquid chromatography-mass spectrometry were performed to characterize the metabolic fluctuations associated with CCl4-induced hepatic fibrosis in mice and elucidate the underlying mechanisms of SMF. Western blotting was further applied to validate the key metabolic pathways. RESULTS A total of 31 compounds were identified or tentatively characterized from SMF. Twenty-seven differential metabolites were identified related with CCl4-induced liver fibrosis, and SMF could significantly reverse the abnormalities of seventeen metabolites. The SMF-reversed metabolites were involved in arachidonic acid metabolism, glycine, serine and threonine metabolism, tyrosine metabolism, arginine and proline metabolism, primary bile acid biosynthesis, glycerophospholipid metabolism and TCA cycle. The results of western blotting analysis showed that SMF could alleviate liver fibrosis by increasing the levels of CYP7A1, CYP27A1 and CYP8B1 and decreasing the level of LPCAT1 to regulate the metabolic disorders of primary bile acid biosynthesis and glycerophospholipid. CONCLUSION It could be concluded that primary bile acid biosynthesis and glycerophospholipid metabolism were the two important target pathways for SMF-against liver fibrosis, which provided the theoretical foundation for its clinical use.
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Affiliation(s)
- Ya Zhang
- School of Pharmacy, Air Force Medical University, Xi'an, 710032, China
| | - Qian Zhou
- Department of Traditional Chinese Medicine, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Xin Ding
- School of Pharmacy, Air Force Medical University, Xi'an, 710032, China
| | - Jing Ma
- Department of Traditional Chinese Medicine, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China.
| | - Guangguo Tan
- School of Pharmacy, Air Force Medical University, Xi'an, 710032, China.
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Hu TY, Ju JM, Mo LH, Ma L, Hu WH, You RR, Chen XQ, Chen YY, Liu ZQ, Qiu SQ, Fan JT, Cheng BH. Anti-inflammation action of xanthones from Swertia chirayita by regulating COX-2/NF-κB/MAPKs/Akt signaling pathways in RAW 264.7 macrophage cells. Phytomedicine 2019; 55:214-221. [PMID: 30668431 DOI: 10.1016/j.phymed.2018.08.001] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 06/11/2018] [Accepted: 08/03/2018] [Indexed: 05/16/2023]
Abstract
BACKGROUND Swertia chirayita, has been commonly used under the name "Zang-yin-chen" for the treatment of liver infections, inflammation, abdominal pain, and bacterial infection in traditional Tibetan medicine. However, the bioactive components with anti-inflammatory activities and underlying mechanisms remain poorly evaluated. STUDY DESIGN/METHODS Repeated column chromatography yielded two main xanthones from petroleum ether (PE) and ethyl acetate fractions of whole plants of S. chirayita, and their structures were determined as bellidifolin (1) and swerchirin (2) on the basis of spectroscopic data and literature analysis. The anti-inflammatory activities and mechanisms of anti-inflammation of these two isolated xanthones were determined via enzyme-linked immunosorbent assay (ELISA) and western blot in lipopolysaccharide (LPS)-stimulated RAW 264.7 murine macrophages in vitro. RESULTS Anti-inflammation assay demonstrated that 1 and 2 inhibit the production of the pro-inflammatory cytokines interleukin-6 (IL-6) and TNF-α in LPS-stimulated RAW 264.7 macrophages. Xanthone 1 also potently inhibited the production of prostaglandin E2 (PGE2) by suppressing the protein expression of cyclooxygenase-2 (COX-2) in LPS-stimulated RAW 264.7 macrophages. Western blot showed that the phosphorylation of c-Jun N-terminal kinases (JNK), extracellular signal-regulated kinase (ERK), and p38 MAPKs were remarkably attenuated by 1 in a concentration-dependent manner. Particularly, Compound 1 suppressed the phosphorylation of the inhibitor κB kinase-β (IKK-β), Akt, and p65 subunit of nuclear factor-kappaB (NF-κB). CONCLUSION The potent suppressive effects of 1 from S. chirayita on inflammatory mediators by blocking the expression of COX-2 and phosphorylation of Akt, IKK-β, MAPK and NF-κB, activation in LPS-stimulated macrophages suggest that 1 can be a preventive therapeutic candidate for the management of inflammatory-mediated immune disorders.
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Affiliation(s)
- Tian-Yong Hu
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT hospital, Shenzhen 518172, China
| | - Jian-Ming Ju
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
| | - Li-Hua Mo
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT hospital, Shenzhen 518172, China
| | - Li Ma
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT hospital, Shenzhen 518172, China
| | - Wen-Hui Hu
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT hospital, Shenzhen 518172, China
| | - Rong-Rong You
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
| | - Xue-Qing Chen
- Anhui University of Chinese Medicine, Hefei 230031, China
| | - Yan-Yan Chen
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT hospital, Shenzhen 518172, China
| | - Zhi-Qiang Liu
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT hospital, Shenzhen 518172, China
| | - Shu-Qi Qiu
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT hospital, Shenzhen 518172, China
| | - Jun-Ting Fan
- Department of Pharmaceutical Analysis, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China.
| | - Bao-Hui Cheng
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT hospital, Shenzhen 518172, China.
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Li J, Zhang J, Zuo Z, Huang H, Wang Y. Quantification and Discrimination of in Vitro Regeneration Swertia nervosa at Different Growth Periods using the UPLC/UV Coupled with Chemometric Method. J AOAC Int 2018; 101:1473-1481. [PMID: 29743131 DOI: 10.5740/jaoacint.17-0488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Swertia nervosa (Wall. ex G. Don) C. B. Clarke, a promising traditional herbal medicine for the treatment of liver disorders, is endangered due to its extensive collection and unsustainable harvesting practices. OBJECTIVE The aim of this study is to discuss the diversity of metabolites (loganic acid, sweroside, swertiamarin, and gentiopicroside) at different growth stages and organs of Swertia nervosa using the ultra-high-performance LC (UPLC)/UV coupled with chemometric method. METHODS UPLC data, UV data, and data fusion were treated separately to find more useful information by partial least-squares discriminant analysis (PLS-DA). Hierarchical cluster analysis (HCA), an unsupervised method, was then employed for validating the results from PLS-DA. RESULTS Three strategies displayed different chemical information associated with the sample discrimination. UV information mainly contributed to the classification of different organs; UPLC information was prominently responsible for both organs and growth periods; the data fusion did not perform with apparent superiority compared with single data analysis, although it provided useful information to differentiate leaves that could not be recognized by UPLC. The quantification result showed that the content of swertiamarin was the highest compared with the other three metabolites, especially in leaves at the rooted stage (19.57 ± 5.34 mg/g). Therefore, we speculated that interactive transformations occurred among these four metabolites, facilitated by root formation. CONCLUSIONS This work will contribute to exploitation of bioactive compounds of S. nervosa, as well as its large-scale propagation. HIGHLIGHTS The roots formation may influence the distribution and accumulation of metabolites.
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Affiliation(s)
- Jie Li
- Yunnan University of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Yuhua Road Kunming, China 650500
| | - Ji Zhang
- Institute of Medicine Plants, Yunnan Academy of Agricultural Sciences, Beijing Road, Kunming, China 650200
| | - Zhitian Zuo
- Yunnan University of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Yuhua Road Kunming, China 650500
| | - Hengyu Huang
- Yunnan University of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Yuhua Road Kunming, China 650500
| | - Yuanzhong Wang
- Institute of Medicine Plants, Yunnan Academy of Agricultural Sciences, Beijing Road, Kunming, China 650200
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Timsina B, Kindlmann P, Rokaya MB, Vrchotová N, Tříska J, Horník Š, Sýkora J. Xanthones Content in Swertia multicaulis D. Don from Nepal. Molecules 2018; 23:molecules23051067. [PMID: 29751500 PMCID: PMC6102544 DOI: 10.3390/molecules23051067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 04/23/2018] [Accepted: 05/01/2018] [Indexed: 11/16/2022] Open
Abstract
The medicinal plant Swertia multicaulis D. Don was collected in Rasuwa District (Nepal) and the xanthone content of its ethyl acetate extracts was studied. The total amount of xanthones in S. multicaulis determined by HPLC reaches almost 13 g of xanthones per 1 kg of dry matter. The identification of xanthones in S. multicaulis was achieved by a combination of HPLC, LC–MS and LC–NMR. The final assignment of the individual chemical structures was provided by NMR, supported by preparative HPLC. In eight chromatographic peaks, four major xanthones were identified—1,3-dihydroxy-5,8-dimethoxyxanthone, 1-hydroxy-3,5,8-trimethoxyxanthone, bellidifolin (1,5,8-tri-hydroxy-3-methoxyxanthone), and decussatin (1-hydroxy-3,7,8-trimethoxyxanthone).
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Affiliation(s)
- Binu Timsina
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, 128 01 Prague, Czech Republic.
- Department of Biodiversity Research, Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic.
| | - Pavel Kindlmann
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, 128 01 Prague, Czech Republic.
- Department of Biodiversity Research, Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic.
| | - Maan B Rokaya
- Department of Biodiversity Research, Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic.
- Institute of Botany, Czech Academy of Sciences, Zámek 1, 252 43 Průhonice, Czech Republic.
| | - Naděžda Vrchotová
- Laboratory of Metabolomics and Isotopic Analyses, Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic.
| | - Jan Tříska
- Laboratory of Metabolomics and Isotopic Analyses, Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic.
| | - Štěpán Horník
- Institute of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic.
| | - Jan Sýkora
- Institute of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic.
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Dilshad R, Batool R, Jamil N. Phytochemical screening and antibacterial potential of Artemisia absinthium L., Swertia chirayita and Sphaeranthus indicus. Pak J Pharm Sci 2018; 31:499-507. [PMID: 29618441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Utilization of herbs for medicinal purpose started in the early history of mankind several thousand years ago. In this study, some plants that are used for lowering cholesterol level in local areas of Pakistan, such as Artemisia absinthium L., Swertia chirayita and Sphaeranthus indicus were screened for their phytochemical and antibacterial properties. For this purpose, these plants were extracted in different solvents i.e. ethanol, hexane and ethyl acetate. Phytochemcial analysis unveiled the existence of different bioactive compounds in these extracts. Presence of sugars was further confirmed by performing TLC. Antibacterial activity was determined against indicated bacterial strains, among all extracts Gul-e-mundi had maximum inhibition zone (23mm). DPPH free radical assay revealed the significant antioxidative potential of all the extracts where Gul-e-mundi showed maximum potential i.e., 83%. Plant extracts were also showing anti-proliferative activity on root tips of Allium cepa and Gul-e-mundi was observed to have maximum antimitotic activity i.e. 5%. GC-MS analysis revealed that oleic acid and linoleic acid were the compounds responsible for imparting antibacterial potential to Gul-e-mundi. In conclusion, among all the tested extracts Gul-e-mundi had maximum antibacterial, antioxidative and antimitotic potential. For future studies, phytochemcials responsible for these activities can be isolated and modified for pharmacological purpose.
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Affiliation(s)
- Rimsha Dilshad
- Department of Microbiology and Molecular Genetics, Quaid-e Azam Campus, University of the Punjab, Lahore, Pakistan
| | - Rida Batool
- Department of Microbiology and Molecular Genetics, Quaid-e Azam Campus, University of the Punjab, Lahore, Pakistan
| | - Nazia Jamil
- Department of Microbiology and Molecular Genetics, Quaid-e Azam Campus, University of the Punjab, Lahore, Pakistan
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Abstract
Three new compounds (1 - 3), including a sesterterpenoid, aspterpenacid C (1), with an unusual 5/3/7/6/5 pentacyclic skeleton, together with seven known ones (4 - 10), were isolated from the ethanol extract of the traditional Chinese medicinal plant Swertia bimaculata. Their structures were elucidated on the basis of the methods of spectroscopic NMR, MS, and computational chemistry. The structure of 1 was further confirmed by single-crystal X-ray diffraction analysis. Compounds 1 - 10 were tested for activities on the inhibition of nitric oxide production and HIV-1 replication in vitro. Compound 1 exhibited moderate activity in inhibiting nitric oxide production (IC50 = 16.1 µM) and HIV-1 replication (EC50 = 1.35 µM).
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Affiliation(s)
- Miao Dong
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Li-Qiu Quan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Wei-Feng Dai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Shi-Li Yan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Chin-Ho Chen
- Duke University Medical Center, Duke University, Durham, NC, USA
| | - Xuan-Qin Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
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Xu L, Sheng T, Liu X, Zhang T, Wang Z, Han H. Analyzing the hepatoprotective effect of the Swertia cincta Burkillextract against ANIT-induced cholestasis in rats by modulating the expression of transporters and metabolic enzymes. J Ethnopharmacol 2017; 209:91-99. [PMID: 28734962 DOI: 10.1016/j.jep.2017.07.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 07/15/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Swertia cincta Burkill was traditionally used for treating jaundice and various types of chronic and acute hepatitis in Yunnan and Tibet in China for hundreds of years. This study aims to investigate the protective effect of S. cincta Burkill (ESC) extract on alpha-naphthylisothiocyanate (ANIT)-induced hepatotoxicity and cholestasis in rats. MATERIALS AND METHODS Crude extracts were prepared using 90% ethanol and by vacuum drying. We utilized an ultra-high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (UHPLC/Q-TOF-MS) system to conduct a phytochemical analysis of the active components of ESC. Liver function was evaluated by measuring the serum levels of enzymes and components and by analyzing the liver histology. We also measured the expression of bile metabolism-related transporters and metabolic enzymes at both protein and mRNA levels to elucidate the underlying mechanisms. RESULTS ESC analysis using an UHPLC/Q-TOF-MS revealed eight compounds. Oral administration of ESC to ANIT-treated rats can significantly reduce the increases in serum levels of ALT, AST, ALP, TBIL, and TBA. It can also improve liver pathology and bile flow. Western blot and qRT-PCR analyses showed that ESC upregulated the protein and mRNA expression of Fxr, Ntcp, Bsep, Cyp7a1, Mrp2, and Mdr2. CONCLUSION ESC could alleviate liver injury by reducing enzyme activities of serums, improving liver pathology and bile flow. The protective mechanism was associated with regulation of the expression of hepatic transporters and metabolic enzymes.
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Affiliation(s)
- Lili Xu
- Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China; Institute of Science, Technology and Humanities, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
| | - Tingting Sheng
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China; School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
| | - Xiaolong Liu
- Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
| | - Tong Zhang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China; School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
| | - Zhengtao Wang
- Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
| | - Han Han
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China; Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
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Wu HY, Sheng Y, Kan XQ, Mou LY, Hu QF, Li GP. Three new xanthones from Swertia bimaculata and their anti-5α-reductase activity. J Asian Nat Prod Res 2017; 19:774-779. [PMID: 28030961 DOI: 10.1080/10286020.2016.1264392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
Three new xanthones (1-3), together with five known ones (4-8), were isolated from whole herb of Swertia bimaculata. Their structures were established on the basis of detailed spectroscopic analysis (1D- and 2D-NMR, HRESIMS, UV, and IR) and comparison with data reported in the literature. New isolates were evaluated for their anti-5α-reductase activity. The results revealed that all new compounds showed weak activity with reductase inhibitions of 40.5 ± 2.8, 38.6 ± 2.5, and 48.9 ± 3.0%, respectively.
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Affiliation(s)
- Hai-Yan Wu
- a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming 650500 , China
| | - Yu Sheng
- a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming 650500 , China
| | - Xue-Qin Kan
- a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming 650500 , China
| | - Lin-Yun Mou
- a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming 650500 , China
| | - Qiu-Feng Hu
- a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming 650500 , China
| | - Gan-Peng Li
- a Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming 650500 , China
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He K, Geng CA, Cao TW, Wang HL, Ma YB, Zhang XM, Chen JJ. Two new secoiridoids and other anti-hepatitis B virus active constituents from Swertia patens. J Asian Nat Prod Res 2016; 18:528-34. [PMID: 26727588 DOI: 10.1080/10286020.2015.1116523] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Two new secoiridoids, swerpatic acid (1) with an unusual C8 skeleton and swerpalactone (2), were isolated along with ten known compounds (3-12) from the whole plants of Swertia patens. Their structures were elucidated by comprehensive spectroscopic analyses. Eight compounds were evaluated for their anti-hepatitis B virus (HBV) activities on Hep G 2.2.15 cell line in vitro. Compounds 4 and 10 showed moderate inhibitory activities on the secretion of HBsAg with IC50 values of 1.96 and 0.50 mM.
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Affiliation(s)
- Kang He
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Chang-An Geng
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Tuan-Wu Cao
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Hong-Ling Wang
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Yun-Bao Ma
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Xue-Mei Zhang
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Ji-Jun Chen
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
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Pan Y, Zhang J, Zhao YL, Wang YZ, Jin H. Chemotaxonomic Studies of Nine Gentianaceae Species from Western China Based on Liquid Chromatography Tandem Mass Spectrometry and Fourier Transform Infrared Spectroscopy. Phytochem Anal 2016; 27:158-167. [PMID: 26919544 DOI: 10.1002/pca.2611] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 12/23/2015] [Accepted: 12/27/2015] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Gentianaceae species which widely occur all over the world are used as folk medicine and raw food material with bitter properties. Although comparative analysis on metabolites in several Gentianaceae species has been reported, metabolic similarities used for chemotaxonomic studies are not yet clear. OBJECTIVE To systematically characterise the variations of holistic metabolome and characteristic metabolites (iridoid glycosides and phenols) in nine Gentianaceae species from western China. METHODOLOGY Fourier transform infrared (FT-IR) spectroscopy was applied to determine the variations of holistic metabolome. A targeted metabolic profiling using liquid chromatography with tandem mass spectrometry (LC-MS/MS) was established for determination of seven characteristic metabolites and identification of their derivatives. Both FT-IR and LC-MS/MS data were subjected to chemometrics analysis for exploring variations in iridoid glycosides and phenols within these species. RESULTS Holistic metabolome in genera Gentiana and Swertia was largely different. Diversity of the biosynthetic pathway of iridoid glycosides was also observed in these species. Principal component analysis (PCA) showed a clear separation according to infrageneric classifications of genus Gentiana. Some secondary metabolites, such as mangiferin, rhodenthoside A-C, isoorientin, isovitexin, amarogentin, and swertianolin would serve as potential chemotaxonomic markers to differentiate Gentianaceae species. Furthermore, the accumulation of the six major metabolites seems to depend on geographical regions in Sect. Monopodiae and Sect. Cruciata. CONCLUSIONS The combination of LC-MS/MS and FT-IR would provide some potential evidence on chemotaxonomic studies of Gentianaceae. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yu Pan
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China
- Yunnan Technical Centre for Quality of Chinese Materia Medica, Kunming, 650200, China
| | - Ji Zhang
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China
- Yunnan Technical Centre for Quality of Chinese Materia Medica, Kunming, 650200, China
| | - Yan-Li Zhao
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China
- Yunnan Technical Centre for Quality of Chinese Materia Medica, Kunming, 650200, China
| | - Yuan-Zhong Wang
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China
- Yunnan Technical Centre for Quality of Chinese Materia Medica, Kunming, 650200, China
| | - Hang Jin
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China
- Yunnan Technical Centre for Quality of Chinese Materia Medica, Kunming, 650200, China
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Ahmmed SM, Mukherjee PK, Bahadur S, Harwansh RK, Kar A, Bandyopadhyay A, Al-Dhabi NA, Duraipandiyan V. CYP450 mediated inhibition potential of Swertia chirata: An herb from Indian traditional medicine. J Ethnopharmacol 2016; 178:34-9. [PMID: 26657265 DOI: 10.1016/j.jep.2015.11.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 09/17/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE An Ayurvedic herb, Swertia chirata (SC) have been used in treating various ailments such as hyperglycemia, leishmania, liver infections, inflammation, abdominal pain, bacterial infection, malaria etc. in Indian Systems of Medicine (ISM). AIM OF THE STUDY Study was designed to investigate the inhibition potential of the standardized SC extract along with its bioactive molecule ursolic acid on hepatic drug metabolizing isozymes (CYP3A4 and CYP2D6) and further some heavy metals were also analysed of the plant material. MATERIALS AND METHODS The hydro-alcoholic extract was standardized with standard ursolic acid by reverse phase-high performance liquid chromatography (RP-HPLC) method and the heavy metals content were analyzed through atomic absorption spectroscopy (AAS). The effect of extract on rat liver microsome (RLM) and individual CYP isozymes (CYP3A4 and CYP2D6) was investigated through CYP450-CO complex assay and fluorescence microplate assay respectively. RESULTS The content of ursolic acid was found to be 2.66% (w/w) in the SC extract and heavy metal contents along with trace elements were within the prescribed limits as per WHO guidelines. The inhibitory potential of SC extract on RLM was found to be 23.64±1.80%. CYP3A4 and CYP2D6 inhibitory effect of SC and ursolic acid (IC50: 197.49±2.68, 211.45±3.54 and IC50: 229.25±2.52, 212.66±1.26 µg/mL) was less as compared to that known inhibitors, ketoconazole and quinidine respectively. CONCLUSIONS The current study revealed that S. chirata has less inhibition potential with two major drug metabolizing isozymes CYP3A4 and CYP2D6. SC extract and ursolic acid showed significantly (P<0.001) less inhibitory potential on RLM. The Ayurvedic herb (SC) has shown less inhibitory activity in a concentration dependent manner against the tested two CYP450 enzymes. The tested heavy metals and trace elements present SC was within limit. Therefore, the traditional use of S. chirata may be safe in respect of both tested isozymes.
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Affiliation(s)
- Sk Milan Ahmmed
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Pulok K Mukherjee
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India.
| | - Shiv Bahadur
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Ranjit K Harwansh
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Amit Kar
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | | | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - V Duraipandiyan
- Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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Di Z, Zhao YL, Zuo ZT, Long H, Zhang X, Wang YZ, Li L. [Analysis and Discrimination of the Medicinal Plants Swertia Davidi Franch Based on Infrared Spectroscopy]. Guang Pu Xue Yu Guang Pu Fen Xi 2016; 36:388-393. [PMID: 27209737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Fourier-transform infrared spectroscopy combined with partial least squares discriminate analysis (PLS-DA) and hierarchical cluster analysis (HCA) were used to rapidly discriminate the Swertia davidi Franch which collected from different origins. The original infrared spectra data of different parts of all the 70 samples which collected from four different regions were preprocessed by automatic calibration, automatic smoothing, the first derivative and the,second derivative. Then the processed data were imported into OMNIC 8.2 and the absorption peaks were compared; PLS-DA was performed by SIMCA-P⁺ 10.0 and the effect of discrimination of different origins was compared by 3D score plot of the first three principal components; the infrared spectral data were imported into SPSS 19. 0 for HCA to compare classification results of different parts by the dendrogram. The results showed that: (1) There were differences among the spectra of the roots of different origins in the spectral peaks in 1,739, 1,647, 1,614, 1,503, 1,271, 1,243, 1,072 cm⁻¹. The spectra of the stems of different origins showed differentiation in the wavelength in 1 503, 1 270, 1 246 cm⁻¹; (2) The characteristic peaks of different parts of the same origin were different; (3) PLS-DA indicated that the data which were processed by automatic correction, automatic smoothing and second derivative have showed the best classification. In addition, the discrimination of roots which collected from different origins could be the best; (4) Tree diagram of HCA showed that the accuracy rate of cluster in roots, stems and leaves were 83%, 56%, and 70%, respectively. In conclusion: FTIR combined with PLS-DA and HCA can rapidly and accurately differentiate S. davidi that collected from different origins, the origin discrimination effect of different parts was clearly different that the classification of roots is the best, the second derivative could enhance the specificity of the samples, the classification in 3D score plot could be visualized and obvious.
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He K, Cao TW, Wang HL, Geng CA, Zhang XM, Chen JJ. [Chemical constituents of Swertia kouitchensis Franch]. Zhongguo Zhong Yao Za Zhi 2015; 40:3811-3817. [PMID: 26975107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study is to investigate the chemical constituents of Swertia kouitchensis. The whole plants of air-dried Swertia kouitchensis was extracted with 90% EtOH. The water extract was suspended in H2O and extracted with petroleum ether, EtOAc and n-BuOH, successively. The compounds were isolated and purified by column chromatography from the EtOAc fraction, and their structures were identified based on spectral analyses (MS, 1H-NMR, 13C-NMR). Twenty-eight compounds were obtained, and characterized as erythrocentaurin (1), erythrocentaurin dimethylacetal (2), swertiamarin (3), vogeloside (4), 2'-O- actylswertiamarin (5), swertianoside D (6), gentiocrucines A-B (7-8), gentiocrucine (9), 1-hydroxy-3, 7, 8-trimethoxyxanthone (10), 1-hydroxy-3, 5, 6-trimethoxyxanthone (11), 3-epitaraxerol (12), erythrodiol 3-O-palmitate (13), (+) -syringaresinol (14), caffeic acid (15), trans-coniferyl aldehyde (16), trans-coniferyl alcohol (17), 3, 4-dihydroxybenzoic acid (18), 4-hydroxy-3-methoxybenzoic acid (19), 3, 4-dihydroxybenzoic aldehyde (20), 2, 3-dihydroxybenzoic acid (21), 4-hydroxybenzoic acid (22), 3-acetoxybenzoic acid (23), 3-hydroxybenzoic acid (24), 3-hydroxybenzoic alcohol (25), nicotinic acid (26), 2-furoic acid (27), and uracil (28). Compounds 1-4, 6-28 were obtained from S. kouitchensis for the first time.
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He K, Cao TW, Wang HL, Geng CA, Zhang XM, Chen JJ. [Chemical constituents of Swertia patens]. Zhongguo Zhong Yao Za Zhi 2015; 40:4012-4017. [PMID: 27062819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Chemical constituents of Swertia patens. The whole plant of air-dried Swertia patens was extracted with 90% EtOH. The water extract was suspended in H₂O and extracted with petroleum ether, EtOAc and n-BuOH, successively. The compounds were isola- ted and purified by column chromatography from the EtOAc fraction, and identified based on spectral analyses (MS, ¹H-NMR, ¹³C- NMR). Eighteen compounds were isolated and elucidated as 3, 4-dihydro-1H,6H,8H-naptho [1,2-c:4,5-c', d'dipyrano-1, 8-dione (1), angelone (2), gentiogenal (3), erythricin (4), erythrocentaurin (5), gentianine (6), swertiakoside B (7), swertiamarin (8), 2'-O-actylswertiamarin (9), amarogentin (10), 1, 3, 5-trihydroxyxanthone (11), 1, 3-dihydroxy-5-methoxyxanthone (12), 1-hydroxy- 2, 3, 5-trimethoxyxanthone (13), gentiocrucine (14), 3-hydroxyphenylketone (15), n-hexacosyl ester 4-hydroxy-trans-cinnamate (16), n-hexacosyl ester 4-hydroxy-cis-cinnamate (17), and cholest-4-en-3-one (18). Compounds 1-7, 9-18 were obtained from S. patens for the first time.
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He K, Cao TW, Wang HL, Geng CA, Zhang XM, Chen JJ. [Chemical constituents of Swertia angustifolia]. Zhongguo Zhong Yao Za Zhi 2015; 40:3603-3607. [PMID: 26983208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This present work is to study the chemical constituents of Swertia angustifolia. The whole plants of air-dried Swertia angustifolia was extracted with 90% EtOH. The water extract was suspended in H2O and extracted with petroleum ether, EtOAc and nBuOH, successively. The compounds were isolated and purified by column chromatography from the EtOAc fraction, and identified based on spectral analyses (MS, 1H-NMR, 13C-NMR). Fourteen compounds were isolated and characterized as 1, 8-dihydroxy-3, 7-dimethoxyxanthone (1), 1, 8-dihydroxy-3, 5, 7-trimethoxyxanthone (2), 7-hydroxy-3, 8-dimethoxyxanthone-1-O-β-D-glucopyranoside (3), 8-0-[β-D-xylopyranosyl-(1-6) -β-D-glucopyranosyl] -1, 7-dihydroxy-3-methoxyxanthone (4), (+) -syringaresinol (5), ferulic acid (6), trans-coniferyl aldehyde (7), sinapaldehyde (8), trans-coniferyl alcohol (9), 3, 4-dihydroxybenzoic acid (10), 2-hydroxybenzoic acid (11), isophthalic acid (12), 2-furoic acid (13), and 2-methyl-4(3H)-quinazolinone(14). Compounds 2-14 were obtained from this plant for the first time.
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Padhan JK, Kumar V, Sood H, Singh TR, Chauhan RS. Contents of therapeutic metabolites in Swertia chirayita correlate with the expression profiles of multiple genes in corresponding biosynthesis pathways. Phytochemistry 2015; 116:38-47. [PMID: 26028519 DOI: 10.1016/j.phytochem.2015.05.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 05/13/2015] [Accepted: 05/14/2015] [Indexed: 06/04/2023]
Abstract
Swertia chirayita, an endangered medicinal herb, contains three major secondary metabolites swertiamarin, amarogentin and mangiferin, exhibiting valuable therapeutic traits. No information exists as of today on the biosynthesis of these metabolites in S. chirayita. The current study reports the expression profiling of swertiamarin, amarogentin and mangiferin biosynthesis pathway genes and their correlation with the respective metabolites content in different tissues of S. chirayita. Root tissues of greenhouse grown plants contained the maximum amount of secoiridoids (swertiamarin, 2.8% of fr. wt and amarogentin, 0.1% of fr. wt), whereas maximum accumulation of mangiferin (1.0% of fr. wt) was observed in floral organs. Differential gene expression analysis and their subsequent principal component analysis unveiled ten genes (encoding HMGR, PMK, MVK, ISPD, ISPE, GES, G10H, 8HGO, IS and 7DLGT) of the secoiridoids biosynthesis pathway and five genes (encoding EPSPS, PAL, ADT, CM and CS) of mangiferin biosynthesis with elevated transcript amounts in relation to corresponding metabolite contents. Three genes of the secoiridoids biosynthesis pathway (encoding PMK, ISPD and IS) showed elevated levels (∼57-104 fold increase in roots), and EPSPS of mangiferin biosynthesis showed an about 117 fold increase in transcripts in leaf tissues of the greenhouse grown plants. The study does provide leads on potential candidate genes correlating with the metabolites biosynthesis in S. chirayita as an initiative towards its genetic improvement.
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Affiliation(s)
- Jibesh Kumar Padhan
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat 173234, Solan, Himachal Pradesh, India
| | - Varun Kumar
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat 173234, Solan, Himachal Pradesh, India
| | - Hemant Sood
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat 173234, Solan, Himachal Pradesh, India
| | - Tiratha Raj Singh
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat 173234, Solan, Himachal Pradesh, India
| | - Rajinder S Chauhan
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat 173234, Solan, Himachal Pradesh, India.
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Cao TW, Geng CA, Ma YB, He K, Zhou NJ, Zhou J, Zhang XM, Chen JJ. Chemical constituents of Swertia delavayi and their anti-hepatitis B virus activity. Zhongguo Zhong Yao Za Zhi 2015; 40:897-902. [PMID: 26087553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fifteen known compounds were isolated from Swertia delavayi by silica gel, Sephadex LH-20 and Rp-18 column chromatographies. Based on extensive spectroscopic analysis (MS, 1H, 13C-NMR), their structures were identified aserythrocentaurin (1), erythrocentaurindimethylacetal (2), sweroside (3), swertiamarin (4), gentiopicroside (5), swertiakoside A (6), 2'-O-acetylswertiamarin (7), 4'-O-[(Z) -coumaroyl] swertiamarin (8), 1,5,8-trihydroxy-3-methoxyxanthone (9), 8-O-β-D-glucopyranosyl-1-hydroxy-2,3, 5-trimethoxyxanthone (10), 8-O-[β-D-xyl- opyranosyl-(1 --> 6)-β-D-glucopyranosyl]-7,8-dihydroxy-3-methoxyxanthone (11), isovitexin (12), β-sitosterol (13), daucosterol (14), and oleanolic acid (15). Among them, ten ones (14, 7-11, 13) were obtained from S. delavayi for the first time. The isolates were evaluated for their anti-HBV activities in HepG 2. 2. 15 cell line in vitro. The results showed that compound 1, 2, 6, 7, 9 and 12 exhibited significant inhibitory activity on HBV DNA replication with IC50 values from 0.05 to 1.46 mmol x L(-1).
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Gao R, Wang L, Yang Y, Ni J, Zhao L, Dong S, Guo M. Simultaneous determination of oleanolic acid, ursolic acid, quercetin and apigenin in Swertia mussotii Franch by capillary zone electrophoresis with running buffer modifier. Biomed Chromatogr 2015; 29:402-9. [PMID: 25042239 DOI: 10.1002/bmc.3290] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 05/18/2014] [Accepted: 06/12/2014] [Indexed: 11/11/2022]
Abstract
The method of capillary zone electrophoresis (CZE) with direct UV detection was developed for the determination of oleanolic acid, ursolic acid, quercetin and apigenin. and then for the first time successfully applied to the analysis of four analytes in Swertia mussotii Franch and its preparations. Various factors affecting the CZE procedure were investigated and optimized, and the optimal conditions were: 50 × 10(-3) mol/L borate-phosphate buffer (pH 9.5) with 5.0 × 10(-3) mol/L β-cyclodextrin, 15 kV separation voltage, 20 °C column temperature, 250 nm detection wavelength and 5 s electrokinetic injection time (voltage 20 psi). Under the conditions, oleanolic acid, ursolic acid, quercetin and apigenin could be determined within the test ranges with a good correlation coefficient (r(2) > 0.9991). The limits of detection for conditions, oleanolic acid, ursolic acid, quercetin and apigenin were 0.3415, 0.2003, 0.0062 and 0.2538 µg/mL, respectively, and the intra- and inter-day relative standard deviations were no more than 4.72%. This procedure provided a convenient, sensitive and accurate method for simultaneous determination of oleanolic acid, ursolic acid, quercetin and apigenin in S. mussotii Franch.
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Affiliation(s)
- Ruibin Gao
- Key Laboratory of Chemistry and Quality for Traditional Chinese Medicines of the College of Gansu Province, Department of Pharmacy, Gansu College of Traditional Chinese Medicine, Lanzhou, 730000, People's Republic of China
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Kshirsagar PR, Pai SR, Nimbalkar MS, Gaikwad NB. Quantitative determination of three pentacyclic triterpenes from five Swertia L. species endemic to Western Ghats, India, using RP-HPLC analysis. Nat Prod Res 2015; 29:1783-8. [PMID: 25613495 DOI: 10.1080/14786419.2015.1004174] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Aim of this study was to identify pentacyclic triterpenoids betulinic acid (BA), oleanolic acid (OA) and ursolic acid (UA) from five Swertia species endemic to Western Ghats, which are used as substitutes as well as adulterants to Swertia chirayita. Our results indicate that the concentration of active compound vary largely among and within the species from different localities. OA was found in a higher amount in all species compared to BA and UA. From the results, it was clear that BA, OA and UA are present in the endemic species collected from Western Ghats, thus advocating the use of these species as alternate sources to S. chirayita. This in due course may release pressure of exploitation from natural resources of S. chirayita and help to bring it out from an endangered category from conservation point of view.
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Affiliation(s)
- Parthraj R Kshirsagar
- a Laboratory of Cytogenetics and Plant Breeding, Department of Botany , Shivaji University , Kolhapur 416 004 , MS , India
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Feng XC, Du X, Chen S, Yue D, Cheng Y, Zhang L, Gao Y, Li S, Chen L, Peng Z, Yang Y, Luo W, Wang R, Chen W, Chai J. Swertianlarin, isolated from Swertia mussotii Franch, increases detoxification enzymes and efflux transporters expression in rats. Int J Clin Exp Pathol 2015; 8:184-195. [PMID: 25755705 PMCID: PMC4348896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 12/24/2014] [Indexed: 06/04/2023]
Abstract
Swertianlarin, isolated from Swertia mussotii Franch and Enicostemma axillare, has hepatoprotective effects against cholestasis in rat models of hepatotoxicity. However, the underlying molecular mechanism is not clear. We then treated rats with swertianlarin for 7 d and then measured serum liver injury markers, lipids, and bile salts, as well as the expression of bile acid synthesis and detoxification enzymes (e.g. Cyp7a1 and Cyp3a), membrane influx and efflux transporters (e.g. Ntcp and Mrp3), nuclear receptors (e.g. Pxr and Fxr/Shp) and transcriptional factors (e.g. Nrf2 and Hnf3β) in the liver. We found a significant induction of the expression of the basolateral efflux transporters Mrp3 and Mrp4 and canalicular transporter Mdr1 in rats treated with swertianlarin, compared with the controls (1.9-fold and 2.2-fold, P < 0.005, and 3.4-fold, P < 0.05, respectively). The expression of detoxification enzymes Cyp3a, Ugt2b, Sult2a1 and Gsta1 in rats treated with swertianlarin was significantly higher than that in controls (3.7-fold, 2.8-fold, 2.1-fold, and 1.7-fold, respectively, all P < 0.05). Expression of the synthetic enzyme, Cyp8b1, was higher in rats treated with swertianlarin than that in controls (1.8-fold at mRNA level and 3.4-flod at protein level, P < 0.05). Elevated serum levels of the conjugated bile acids, taurocholic acid and taurodeoxycholic acid, and a reduction in levels of serum ALP, unconjugated bile acid αMCA, and TG were observed (all P < 0.05). In conclusion, swertianlarin significantly up-regulates hepatic bile acid detoxification enzymes and efflux transporters in rats, which can increase the water solubility of hydrophobic bile acids and elimination of conjugated bile acids.
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Affiliation(s)
- Xin-Chan Feng
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Xiaohuang Du
- Department of Traditional Chinese Medicine, Third Military Medical UniversityChongqing 400038
| | - Sheng Chen
- Department of Pediatrics, Southwest Hospital, Third Military Medical UniversityChongqing 400038
| | - Dongmei Yue
- Department of Employee Health, Third Military Medical UniversityChongqing 400038
| | - Ying Cheng
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Liangjun Zhang
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Yu Gao
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Shaoxue Li
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Lei Chen
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Zhihong Peng
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Yong Yang
- Chongqing Academy of Chinese Material MedicalChongqing 400065, P. R. China
| | - Weizao Luo
- Chongqing Academy of Chinese Material MedicalChongqing 400065, P. R. China
| | - Rongquan Wang
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Wensheng Chen
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
| | - Jin Chai
- Department of Gastroenterology, Third Military Medical UniversityChongqing 400038
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Mahmood S, Hussain S, Tabassum S, Malik F, Riaz H. Comparative phytochemical, hepatoprotective and antioxidant activities of various samples of Swertia Chirayita collected from various cities of Pakistan. Pak J Pharm Sci 2014; 27:1975-1983. [PMID: 25362620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Medicinal plants are crucial for about 80% of the world population in developing and developed countries for their primary and basic health care needs owing to better tolerability, superior compatibility with human body and having lesser side effects. The present study was conducted on various solvent extracts of three plant samples of Indian and Nepali origin Swertia Chirayita (Roxb.) Buch-ham (Chiratia) collected from various places to establish their comparative phytochemical analysis, chromatographic profile, hepatoprotective and antioxidant activities. Nepali Swertia Chirayita was found to have finest Chromatographic profile (TLC). Phytochemical analysis revealed Alkaloids, flavonoids, saponins, ascorbic acid, glycosides, steroids and triterpenoids in all samples. Different solvent fractions of the methanolic plant extracts of Swertia chirayita were assessed for hepatoprotective activity by carbon tetrachloride-induced liver damage in rats. The grade of protection was measured by using biochemical parameters such as serum glutamate oxalate transaminase (SGOT/AST), alkaline phosphatase (ALP), serum glutamate pyruvate transaminase (SGPT/ALT) and total bilirubin. The in-vitro antioxidant activity of the extracts was also evaluated by the 1, 1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assay. The methanolic and aqueous extracts, at a dose of 200mg/kg and 300mg/kg, produced significant (p<0.05) hepatoprotection by decreasing the activities of the serum enzymes and bilirubin while there were marked scavenging of the DPPH free radicals by the fractions. Decreased observed in the biochemical parameters suggests that the plant extracts possesses hepatoprotective as well as antioxidant activities without any significant variation amongst them. These activities reside mainly in the methanolic extract of whole plant.
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Affiliation(s)
- Sidra Mahmood
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan
| | | | - Sobia Tabassum
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan
| | - Farnaz Malik
- National Institute of Health, Islamabad, Pakistan
| | - Humayun Riaz
- Department of Pharmacy, Sargodha University, Sargodha, Pakistan
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Yang HX, Ma F, Du YZ, Sun SQ, Wei LX. [Study on the Tibetan medicine Swertia mussotii Franch and its extracts by Fourier transform infrared spectroscopy]. Guang Pu Xue Yu Guang Pu Fen Xi 2014; 34:2973-2977. [PMID: 25752041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The objective of the present study is to research the herb of Swertia mussotii Franch and its different extracts by tristep infrared spectroscopy. The main constitute of Swertia mussotii Franch-gentiamarin, which is also the higher content constitute, was selected as the control components to analyze the infrared spectroscopy and second derivative infrared spectroscopy of different extracts of Swertia mussotii Franch, at the same time, the different concentration of ethanol extracts were also analyzed by two-dimensional correlation spectroscopy (2D-COS). The results indicated that the intensity of 1 611 and 1 075 cm(-1) of gentiamarin, which are its two main absorptions in the infrared spectra, has the positive correlation with the content change in different extracts. The infrared spectroscopy of extracts are similar if the polarity of extract solvents is close; with the decreases in solution polarity, the intensity of 2 853, 1 733, 1 464, 1 277 and 1 161 cm(-1) in infrared spectroscopy of different extracts is increased, the content of esters and the extraction percentage terpenoid compounds are also increased; the different concentration of ethanol extracts has obviously difference when they are analyzed by two-dimensional correlation spectroscopy (2D-COS). The positive correlation between the intensity of absorptions and the content of the gentiamarin indicates that the infrared spectroscopy can reflect the content change in constitute; the similar and the change trend of the different concentrations of ethanol extract infrared spectroscopy approve the scientificalness of decoction of traditional medicine; infrared spectroscopy that used in the research can be used as an accurate, rapid and effective method in the pharmacological activity tests of transitional herbal Swertia mussotii F. and it's different extracts, even in the research on the tibetan medicine.
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Mahendran G, Manoj M, Murugesh E, Sathish Kumar R, Shanmughavel P, Rajendra Prasad KJ, Narmatha Bai V. In vivo anti-diabetic, antioxidant and molecular docking studies of 1, 2, 8-trihydroxy-6-methoxy xanthone and 1, 2-dihydroxy-6-methoxyxanthone-8-O-β-D-xylopyranosyl isolated from Swertia corymbosa. Phytomedicine 2014; 21:1237-1248. [PMID: 25172785 DOI: 10.1016/j.phymed.2014.06.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 04/30/2014] [Accepted: 06/19/2014] [Indexed: 06/03/2023]
Abstract
1, 2, 8-trihydroxy-6-methoxy xanthone (1) and 1, 2- dihydroxy-6-methoxyxanthone-8-O-β-d-xylopyranosyl (2) are the main constituents of petroleum ether and ethyl acetate extracts from Swertia corymbosa (Gentinaceae), a medicinal plant used in Indian traditional system for the treatment of diabetes. The present study was designed to examine the antihypoglycemic, antihyperlipidemic and antioxidant effect of compounds 1 and 2 in streptozotocin (STZ) induced diabetic rats. Diabetes was induced in male Wistar rats by a single intraperitoneal injection of STZ (60 mg/kg b.w.). The isolated compounds 1 and 2 at a dose of 50 mg/kg b.w., produced the maximum fall of 83% in the blood glucose level in the diabetic rats after 3h of the treatment. The administration of 1 and 2 (50 mg/kgb.w.) daily for 28 days in STZ induced diabetic rats, resulted in a significant decrease in blood glucose, glycosylated hemoglobin, SGOT, SGPT, ALP serum urea and creatinine with significant rise in plasma insulin level. Test compounds 1 and 2 showed antihyperlipidemic activities as evidenced by significant decrease in serum TC, TG, LDL-C, VLDL-C levels coupled together with elevation of HDL-C level in diabetic treated rats when compared to diabetic untreated rats, indicate the protective role against liver and kidney damage. The results of histopathology also showed 1 and 2 protected tissues (pancreas, liver and kidney) against peroxidation damage and maintained tissue integrity. Further, the molecular interaction study of the ligands 1, 2 and glibenclamide with various diabetes mellitus related protein targets like glucokinase (PDB ID: 1V4S), fructose-1, 6-bisphosphatase 1 (PDB ID: 2JJK) 11-β-hydroxysteroid dehydrogenase (PDB ID: 2BEL) and modeled protein sulfonylurea receptor 1 (SUR1) showed that ligand 1 and 2 possess binding affinity with all protein targets except for 2BEL target protein for which ligand 1 has no interaction. The ligand pose with 2BEL and SUR1 protein target of ligand 2 gave the best binding conformation. Hence 1 and 2 can be considered for developing into a potent antidiabetic drug.
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Affiliation(s)
- G Mahendran
- Plant Tissue Culture Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India.
| | - M Manoj
- Department of Chemistry, School of Chemical Sciences, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - E Murugesh
- Computational Biology Lab, Bioinformatics Department, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - R Sathish Kumar
- Computational Biology Lab, Bioinformatics Department, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - P Shanmughavel
- Computational Biology Lab, Bioinformatics Department, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - K J Rajendra Prasad
- Department of Chemistry, School of Chemical Sciences, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - V Narmatha Bai
- Plant Tissue Culture Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
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Yue YD, Zhang YT, Liu ZX, Min QX, Wan LS, Wang YL, Xiao ZQ, Chen JC. Xanthone glycosides from Swertia bimaculata with α-glucosidase inhibitory activity. Planta Med 2014; 80:502-508. [PMID: 24687743 DOI: 10.1055/s-0034-1368299] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Seven new xanthone glycosides (1-7) were isolated from the n-butanol extract of Swertia bimaculata, together with six known compounds (8-13). Their structures were elucidated on the basis of extensive spectroscopic analyses (1D- and 2D-NMR, HRESIMS, UV, and IR) and comparison with data reported in the literature. All the compounds were evaluated for their α-glucosidase inhibitory activities in vitro, and compounds 3, 4, and 7 exhibited significant activities to inhibit α-glucosidase. Meanwhile the effects of different substitutions on the α-glucosidase inhibitory activity of xanthone glycosides from S. bimaculata are also discussed.
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Affiliation(s)
- Yao-Dong Yue
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Yu-Tang Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Zhao-Xia Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Qiu-Xia Min
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Luo-Sheng Wan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Yong-Long Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Zuo-Qi Xiao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Jia-Chun Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Zhao Y, Geng CA, Sun CL, Ma YB, Huang XY, Cao TW, He K, Wang H, Zhang XM, Chen JJ. Polyacetylenes and anti-hepatitis B virus active constituents from Artemisia capillaris. Fitoterapia 2014; 95:187-93. [PMID: 24685503 DOI: 10.1016/j.fitote.2014.03.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/14/2014] [Accepted: 03/22/2014] [Indexed: 12/31/2022]
Abstract
Three new polyacetylenes, 8-(Z)-decene-4, 6-diyne-1, 3, 10-triol (1), 1, 3S, 8S-trihydroxydec-9-en-4, 6-yne (2), 3S, 8S-dihydroxydec-9-en-4, 6-yne 1-O-β-D-glucopyranoside (3), and one new glucosyl caffeoate, 1-O-ethyl-6-O-caffeoyl-β-D-glucopyranose (4), together with 34 known compounds were isolated from Artemisia capillaris. The structures of the new compounds were determined by extensive spectroscopic analyses including 1D and 2D NMR, HRESIMS, [α]D and CD experiments. Among them, 19 compounds showed activity inhibiting HBsAg secretion; 20 compounds showed activity inhibiting HBeAg secretion; and 25 compounds possessed inhibitory activity against HBV DNA replication according to our anti-HBV assay on HepG 2.2.15 cell line in vitro. The most active compound 12 could inhibit not only the secretions of HBsAg and HBeAg, but also HBV DNA replication with IC50 values of 15.02 μM (SI=111.3), 9.00 μM (SI=185.9) and 12.01 μM (SI=139.2).
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Affiliation(s)
- Yong Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Chang-An Geng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Chang-Li Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yun-Bao Ma
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Xiao-Yan Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Tuan-Wu Cao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Kang He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Hao Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xue-Mei Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Ji-Jun Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China.
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Shukla S, Bafna K, Sundar D, Thorat SS. The bitter barricading of prostaglandin biosynthesis pathway: understanding the molecular mechanism of selective cyclooxygenase-2 inhibition by amarogentin, a secoiridoid glycoside from Swertia chirayita. PLoS One 2014; 9:e90637. [PMID: 24603686 PMCID: PMC3946170 DOI: 10.1371/journal.pone.0090637] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Accepted: 02/04/2014] [Indexed: 12/24/2022] Open
Abstract
Swertia chirayita, a medicinal herb inhabiting the challenging terrains and high altitudes of the Himalayas, is a rich source of essential phytochemical isolates. Amarogentin, a bitter secoiridoid glycoside from S. chirayita, shows varied activity in several patho-physiological conditions, predominantly in leishmaniasis and carcinogenesis. Experimental analysis has revealed that amarogentin downregulates the cyclooxygenase-2 (COX-2) activity and helps to curtail skin carcinogenesis in mouse models; however, there exists no account on selective inhibition of the inducible cyclooxygenase (COX) isoform by amarogentin. Hence the computer-aided drug discovery methods were used to unravel the COX-2 inhibitory mechanism of amarogentin and to check its selectivity for the inducible isoform over the constitutive one. The generated theoretical models of both isoforms were subjected to molecular docking analysis with amarogentin and twenty-one other Food and Drug Authority (FDA) approved lead molecules. The post-docking binding energy profile of amarogentin was comparable to the binding energy profiles of the FDA approved selective COX-2 inhibitors. Subsequent molecular dynamics simulation analysis delineated the difference in the stability of both complexes, with amarogentin-COX-2 complex being more stable after 40ns simulation. The total binding free energy calculated by MMGBSA for the amarogentin-COX-2 complex was −52.35 KCal/mol against a binding free energy of −8.57 KCal/mol for amarogentin-COX-1 complex, suggesting a possible selective inhibition of the COX-2 protein by the natural inhibitor. Amarogentin achieves this potential selectivity by small, yet significant, structural differences inherent to the binding cavities of the two isoforms. Hypothetically, it might block the entry of the natural substrates in the hydrophobic binding channel of the COX-2, inhibiting the cyclooxygenation step. To sum up briefly, this work highlights the mechanism of the possible selective COX-2 inhibition by amarogentin and endorses the possibility of obtaining efficient, futuristic and targeted therapeutic agents for relieving inflammation and malignancy from this phytochemical source.
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Affiliation(s)
- Shantanu Shukla
- Bioresource Database and Bioinformatics Division, Regional Center of Institute of Bioresources and Sustainable Development, Tadong, Gangtok, Sikkim, India
| | - Khushboo Bafna
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
| | - Durai Sundar
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
- * E-mail: (SST); (DS)
| | - Sunil S. Thorat
- Bioresource Database and Bioinformatics Division, Regional Center of Institute of Bioresources and Sustainable Development, Tadong, Gangtok, Sikkim, India
- Distributed Information Sub-Centre, Institute of Bioresources and Sustainable Development, Imphal, Manipur, India
- * E-mail: (SST); (DS)
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Abstract
Two new xanthones, 1,8-dihydroxy-3-methoxyxanthone 7-O-[α-L-rhamnopyranosyl(1 → 2)-β-D-glucopyranoside] (1) and 1,8- dihydroxy-3-methoxyxanthone 7-O-[α-L-rhamnopyranosyl(1 → 3)-α-L-rhamno-pyranosyl (1 → 2)-β-D-xylopyranoside] (2), together with 26 known xanthones (3-28), were isolated from the aqueous ethanol extract of the traditional Chinese herb Swertia mussotii. Their structures were elucidated via spectroscopic analyses including 2D NMR. The inhibition of α-glucosidase by the isolated xanthones was evaluated by an in vitro high-throughput screening assay. Our results indicated that 1,3,5,8-tetrahydroxyxanthone is the best inhibitor with an IC50 value of 5.33 ± 0.09 µM, while the O-glycosylated xanthones were poor α-glycosidase inhibitors.
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Affiliation(s)
- Cui-Ting Luo
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Huan-huan Zheng
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Shuang-Shuang Mao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Mao-xun Yang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Cheng Luo
- State key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
| | - Heru Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
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Abstract
To detect and identify natural antioxidants in Swertia chirayita with protective effect against cerebral infarction, a screening method, using column chromatography and cerebral ischemia-reperfusion injury in rat, was developed. Seventeen compounds were purposefully separated and identified by Nuclear Magnetic Resonance, Fourier Transform Infrared Spectroscopy, Ultraviolet Spectrum, and Mass Spectrometry. The purified compounds were further screened by radical scavenging activity and cerebral ischemia-reperfusion injury in rats. Two compounds showed apparent radical scavenging activity and neuroprotective activity. The two compounds were identified as 1-hydroxy-2,3,4,6-tetramethoxyxanthone and 1,5,8-trihydroxy-3-methoxy xanthone, and were preliminarily considered as primary natural neuroprotective antioxidants in Swertia chirayita. These two compounds (20 mg kg-1) markedly decreased infarct size to below 5%, and also caused a significant improvement of activities of superoxide dismutase (SOD) (92.90 ± 11.19 U ml-1), glutathione peroxidase (GSH-Px) (122.58 ± 12.31 μmol mg-1) and a decrease in the content of malondialdehyde (MDA) (3.98 ± 2.00 nmol ml-1) in serum. The two compounds showed strong capability for protective effects against cerebral damages induced by ischemia-reperfusion, and the protective effect may be related to the inhibition of lipid peroxidation. The use of the screening method based on tracing separation and ischemia reperfusion would provide a new way for detection of radical-scavenging and natural neuroprotective compounds from Swertia chirayita or complex matrices.
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Affiliation(s)
- Gao-Feng Shi
- Lanzhou University of Technology Department of Chemical Engineering, School of Petrochemical Engineering Lanzhou China Lanzhou University of Technology Instrumental Analysis & Research Center Lanzhou China
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Xu GL, Li HL, He JC, Feng EF, Shi PP, Liu YQ, Liu CX. Comparative pharmacokinetics of swertiamarin in rats after oral administration of swertiamarin alone, Qing Ye Dan tablets and co-administration of swertiamarin and oleanolic acid. J Ethnopharmacol 2013; 149:49-54. [PMID: 23791808 DOI: 10.1016/j.jep.2013.05.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 04/29/2013] [Accepted: 05/01/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Qing Ye Dan is a well-known herbal drug that is widely used to treat viral hepatitis in the Yi and Hani minority regions in the Yunnan province of China. MATERIALS AND METHODS An LC-MS/MS method was developed to determine the levels of swertiamarin in rat plasma. Swertiamarin and naringin (internal standard, IS) were extracted from rat plasma using solid-phase extraction (SPE) to purify the samples. The pharmacokinetics of the following different administration methods of swertiamarin in rats were studied: oral administration of swertiamarin alone, a Qing Ye Dan tablet (QYDT) and co-administration of swertiamarin and oleanolic acid, with each method delivering approximately 20mg/kg of swertiamarin. Non-compartmental pharmacokinetic profiles were constructed by using the software DAS (version 2.1.1), and the pharmacokinetic parameters were compared using an unpaired Student's t-test. RESULTS The results showed that the pharmacokinetic parameters Cmax, AUC0-∞, Vz/F and CLz/F were significantly different (P<0.05) among the three types of swertiamarin administration. CONCLUSIONS The data indicate that oleanolic acid and the other ingredients present in QYDT could affect the pharmacokinetic behaviour of swertiamarin in rats.
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Affiliation(s)
- Gui-li Xu
- School of Chemical Engineering and Technology of Tianjin University, 92 Wei-Jin Road, Tianjin 300072, PR China
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Wan LS, Min QX, Wang YL, Yue YD, Chen JC. Xanthone glycoside constituents of Swertia kouitchensis with α-glucosidase inhibitory activity. J Nat Prod 2013; 76:1248-1253. [PMID: 23805995 DOI: 10.1021/np400082g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Ten new xanthone glycosides, kouitchensides A-J (1-10), and 11 known analogues were isolated from an n-butanol fraction of Swertia kouitchensis. The structures of these glycosides were determined on the basis of extensive spectroscopic data interpretation and comparison with data reported in the literature. In an in vitro test, compounds 2, 4, 5, 6, 11, 12, and 13 (IC50 values in the range 126 to 451 μM) displayed more potent inhibitory effects against α-glucosidase activity than the positive control, acarbose (IC50 value of 627 μM).
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Affiliation(s)
- Luo-Sheng Wan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Pharmaceutical Science Department of Tongji Medical School, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
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Wan LS, Liu TT, Lin XJ, Min QX, Chen JC. Two new chiratane-type triterpenoids from Swertia kouitchensis. Molecules 2013; 18:8518-23. [PMID: 23873389 PMCID: PMC6270363 DOI: 10.3390/molecules18078518] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 07/02/2013] [Accepted: 07/10/2013] [Indexed: 11/17/2022] Open
Abstract
Two rare new chiratane-type triterpenoids, kouitchenoids A and B (1, 2), together with oleanolic acid (3) and ursolic acid (4), were isolated from ethanol extract of Swertia kouitchensis. The new structures were determined by the analysis of MS and NMR data. In addition, compounds 1-4 showed moderate inhibitory activity against the α-glucosidase (with IC₅₀ values ranging from 1,812 to 2,027 μM).
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Affiliation(s)
- Luo-Sheng Wan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ting-Ting Liu
- The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xiao-Jun Lin
- Shantou Institute for Drug Control, Shantou 515041, China
| | - Qiu-Xia Min
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jia-Chun Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- State Clinical Research Center of TCM, Hubei 430061, China
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Cao TW, Geng CA, Ma YB, He K, Wang HL, Zhou NJ, Zhang XM, Tao YD, Chen JJ. Xanthones with anti-hepatitis B virus activity from Swertia mussotii. Planta Med 2013; 79:697-700. [PMID: 23576173 DOI: 10.1055/s-0032-1328399] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Two new xanthones, 8-O-β-D-glucopyranosyl-1-hydroxy-2,3,5-trimethoxyxanthone (1) and 8-O-[β-D-xylopyranosyl-(1 → 6)-β-D-glucopyranosyl]-1-hydroxy-2,3,5-trimethoxyxanthone (2), along with eighteen known xanthones (3-20) were isolated from Swertia mussotii. Their structures were elucidated on the basis of extensive spectroscopic analyses (1D- and 2D-NMR, HRESIMS, UV, IR, [α]D). All compounds were evaluated for their anti-hepatitis B virus activities on HepG 2.2.15 cells line in vitro, and compounds 3-10 exhibited significant activity inhibiting hepatitis B virus DNA replication with IC50 values from 0.01 mM to 0.13 mM. Compounds 3-5 showed remarkable activity with IC50 values of 0.77, > 0.98, and 0.21 mM for HBsAg, and < 0.62, 0.35, and 0.04 mM for HBeAg, respectively. Meanwhile, the effects of different substitutions on the anti-hepatitis B virus activity of xanthones from S. mussotii were discussed.
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Affiliation(s)
- Tuan-Wu Cao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, PR China
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Li YL, Shang MY, Geng CA, Zhang XM, Chen JJ, Cai SQ. [Simultaneous determination of five constituents in eight Qingyedan species derived from Swertia plants by HPLC]. Zhongguo Zhong Yao Za Zhi 2013; 38:1394-1400. [PMID: 23944076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To develop an HPLC method for simultaneous determination of swertiamarin, gentiopicroside, sweroside, mangiferin, erythrocentaurin, and to detect these five constituents in eight Qingyedans derived from Swertia mileensis, S. cincta, S. patens, S. punicea, S. delavayi, S. nervosa, S. macrosperma and S. yunnanensis. METHOD The separation was carried out on a Thermo BDS Hypersil C18 (4. 6 mm x 250 mm, 5 microm) column eluted with mobile phase of water containing 0. 1% phosphoric acid and methanol (B) in gradient program (0-10 min, 18%-20% B; 10-30 min, 20%-35% B; 30-35 min, 35%-60% B). The column temperature was 32 degrees C , and the detection wavelength was set at 250, 260, 225 nm. The flow rate was 0. 7 mL . min-1 from 0 to 30 min, and be increased to 1. 0 mL . min-1 in 35 min. RESULT The five compounds were well separated. The linear response ranges of swertiamarin, gentiopicroside, sweroside, mangiferin, erythrocentaurin were 0. 072-13. 39, 0. 1204. 518, 0. 060-5. 050, 0. 025-1. 518, and 0. 031-0. 210 microg, respectively. The mean recoveries of five compounds were 97.03% -102. 7% (RSD 1. 8% -6.2% ). There are swertiamarin, gentiopicroside and sweroside in most samples, and mangiferin in half samples. But erythrocentaurin was only detected in a few samples. The contents of five compounds were different in different samples. The contents of swertiamarin in S. mileensis, S. patens, S. yunnanensis and S. delavayi are up to 34. 47-118.05 mg . g-1, the contents of gentiopicroside are up to 25. 91 mg . g-1 in S. cincta. In S. puncea all contents of swertiamarin, gentiopicroside, sweroside and mangiferin are higher, especially the content of sweroside. There are Xiao-Qingyedans and Da-Qingyedans called in markets, and they can be identified by the contents of swertiamarin, gentiopicroside and sweroside. S. punicea can be identified by the content of sweroside, and the ratio gentiopicroside/total content can be used for identification of S. cincta from other seven Qingyedan species. CONCLUSION The method was certified to be accurate and reliable and can be used for identification and quality evaluation of traditional Chinese medicine Qingyedan derived from Swertia species.
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Affiliation(s)
- Yao-Li Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunmning Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China.
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Du XG, Wang W, Zhang QY, Cheng J, Avula B, Khan IA, Guo DA. Identification of xanthones from Swertia punicea using high-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry. Rapid Commun Mass Spectrom 2012; 26:2913-2923. [PMID: 23136022 DOI: 10.1002/rcm.6419] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
RATIONALE Swertia punicea Hemsl. (Gentianaceae) are used mainly for the treatment of acute bilious hepatitis, cholecystitis, fever, intoxification and jaundice in China, as a traditional Chinese folk medicine. Xanthones as the main chemical components of Swertia punicea have many possible pharmacological properties, such as hepatoprotective and anti-HIV. In order to obtain an overall picture of the xanthones of Swertia punicea, high-performance liquid chromatography diode-array detection/tandem mass spectrometry (HPLC/DAD-ESI-MS(n)) was applied to the structural characterization of xanthones in ethyl acetate and acetone extracts. METHODS The ESI-MS fragmentation behaviors of xanthones were investigated based on the 17 reference xanthones and then applied to the structural characterization of xanthones in ethyl acetate and acetone extracts of Swertia punicea by HPLC/DAD-ESI-MS(n). RESULTS The fragmentation rules of aglycone, C-glycosides, O-glycosides, and polyxanthones with different linkages were summarized. The observed fragmentation pathways were used successfully for the analysis of the xanthone constituents of Swertia punicea, and a total of 34 xanthones were identified, among which 16 compounds were new and one compound was reported from this species for the first time. CONCLUSIONS The described methods were very valuable for the identification of xanthones, especially of the trace compounds, and therefore could be utilized for sensitive and rapid qualitative analysis of xanthones in Swertia punicea.
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Affiliation(s)
- Xin-Gang Du
- School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
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Wang HL, He K, Geng CA, Zhang XM, Ma YB, Luo J, Chen JJ. Gentiocrucines A-E, five unusual lactonic enamino Ketones from Swertia macrosperma and Swertia angustifolia. Planta Med 2012; 78:1867-1872. [PMID: 23059634 DOI: 10.1055/s-0032-1315392] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Five unusual lactonic enamino ketones, gentiocrucines A-E (1-5), were isolated from Swertia macrosperma and S. angustifolia. Their structures were determined based on extensive spectroscopic analyses (IR, UV, MS, 1D- and 2D-NMR). By anti-HBV assay on the HepG 2.2.15 cell line in vitro, compound 1 inhibited both the secretion of hepatitis B virus surface antigen (HBsAg) and hepatitis B virus e antigen (HBeAg) with IC50 values of 3.14 and 3.35 mM, and compound 5 only inhibited the secretion of HBsAg with an IC50 value of 2.07 mM.
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Affiliation(s)
- Hong-Ling Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, PR China
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Yang Y, Luo WZ, Liu X, Wang CH, Zhao JF, Qin SY, Zhong GY. [Determination and quality assessment of 10 ingredients gentiopicroside and sweroside and so on in Tibetan medicine Jia Di (Swertia chirayita)]. Zhongguo Zhong Yao Za Zhi 2012; 37:3141-3146. [PMID: 23311169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To establish a method for determination of 10 ingredients such as gentiopicroside, sweroside, and mangiferin in India swertia, and settle the index components and their limits. METHOD By Welch materials AQ-C18 column, determination was conducted by the gradient elution with methanol and 0.4% formic acid as mobile phase, with column temperature 30 degrees C, flow rate at 1.0 mL x min(-1), and 254 nm as the detection wavelength. RESULT The linear relatives of 10 ingredients were good. The method showed the high precision and good reproducibility, and recovery rates were between 97% and 103%. The ingredients of market com-modities varied greatly. CONCLUSION This method is simple, sensitive, reproducible, and applicable to the determination of the main ingredients in India Swertia. Sweroside and mango glycosides were suggested as the index components for determination in Jia Di (Swertia chirayita), and their content limits are not less than 0.1%, 0.3%, respectively.
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Affiliation(s)
- Yong Yang
- Chongqing Academy of Chinese Materia Medica, Chongqing 400065, China.
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Jia J, Chen T, Wang P, Chen G, You J, Liu Y, Li Y. Preparative separation of methylswertianin, swerchirin and decussatin from the Tibetan medicinal plant Swertia mussotii using high-speed counter-current chromatography. Phytochem Anal 2012; 23:332-6. [PMID: 22052665 DOI: 10.1002/pca.1362] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 08/19/2011] [Accepted: 08/29/2011] [Indexed: 05/18/2023]
Abstract
INTRODUCTION Xanthones, the primary constituents of Swertia mussotii, are known to possess a variety of biological activities, including anti-depressant, anti-leukaemic, anti-tumour, anti-tubercular, choleretic, diuretic, anti-microbial, anti-fungal, anti-inflammatory, anti-viral, cardiotonic and hypoglycemic properties. However, high performance, environmentally friendly methods for isolating and purifying xanthones from S. mussotii are not currently available. OBJECTIVE To develop a high performance and environmentally friendly method for the preparative separation of xanthones methylswertianin, swerchirin and decussatin from S. mussotii using high-speed counter-current chromatography (HSCCC). METHODOLOGY A solvent system composed of n-hexane:ethyl acatate:methanol:water (5:5:10:4, v/v/v/v) was developed for the separation method. The upper phase was used as the stationary phase, and the lower phase was used as the mobile phase at a flow rate of 1.5 mL/min, a rotation speed of 800 rpm and a temperature of 25 °C. RESULTS Using the described method, 8 mg of methylswertianin, 21 mg of swerchirin and 11 mg of decussatin with purities of over 98% could be isolated from a 150 mg crude sample. They were identified by ¹H-NMR and ¹³C-NMR analysis. CONCLUSION Three xanthones in Swertia mussotii could be systematically isolated and purified using HSCCC.
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Affiliation(s)
- Jing Jia
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, PR China
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He K, Ma YB, Cao TW, Wang HL, Jiang FQ, Geng CA, Zhang XM, Chen JJ. Seven new secoiridoids with anti-hepatitis B virus activity from Swertia angustifolia. Planta Med 2012; 78:814-820. [PMID: 22441835 DOI: 10.1055/s-0031-1298381] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Seven new secoiridoids, swertianglide (1) and swertianosides A-F (2-7), together with fifteen known compounds, were isolated from the whole plants of Swertia angustifolia. Their structures were elucidated on the basis of extensive spectroscopic analyses ([α](D), UV, IR, MS, 1D- and 2D-NMR). Fourteen compounds were evaluated for their anti-hepatitis B virus (HBV) activities on the Hep G 2.2.15 cell line in vitro. Compound 2, an unusual secoiridoid glycoside dimer, showed significant activities inhibiting the secretion of HBsAg (IC₅₀ 0.18 mM, SI 3.11) and HBeAg (IC₅₀ 0.12 mM, SI 4.67).
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Affiliation(s)
- Kang He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, PR China
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Abstract
Two new xanthones, angustins A and B (1 and 2), were isolated from the aerial parts of Swertia angustifolia together with six known compounds (3-8). The structures of these two xanthones were elucidated by extensive analysis of the spectroscopic data. In addition, compounds 3 and 6-8 were isolated from this plant for the first time.
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Affiliation(s)
- Bao-Kun Zhu
- R&D Center of Hongyunhonghe Group Co. Ltd., Kunming, China
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Abstract
Swerilactones L-O (1-4), four unusual secoiridoids with unprecedented C₁₂ and C₁₃ skeletons, were isolated from the traditional Chinese herb Swertia mileensis. Compounds 1 and 2 had moderate inhibitory activities against the secretion of hepatitis B virus surface antigen (IC₅₀ = 1.47 and 1.20 mM, with SI < 1 and 1.53, respectively) and hepatitis B virus e antigen (IC₅₀ = 0.88 and >2.69 mM, with SI 1.62 and <1, respectively) in an antihepatitis B virus assay on the Hep G 2.2.15 cell line in vitro.
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Affiliation(s)
- Chang-An Geng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204, People's Republic of China
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Jiang F, Zhang X, Ma Y, Geng C, Jiang Z, Chen J. [Chemical constituents of Swertia hispidicalyx]. Zhongguo Zhong Yao Za Zhi 2011; 36:2215-2218. [PMID: 22097333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To study the chemical constituents of Swertia hispidicalyx. METHOD The EtOAc part of S. hispidicalyx was chromatographied by various column chromatography methods, and the isolates were identified based on spectroscopic analyses (MS, 1H-and 13C-NMR). RESULT Eleven compounds were isolated from S. hispidicalyx and characterized as 1,3,5,8-tetrahydroxyxanthone (1), 1,5,8-trihydroxy-3-methoxyxanthone (2), gentiolactone (3), swertiamarin (4), 3,4-dihydro-1H,6H,8H-naphtho [1, 2-c:4, 5-c', d'] dipyrano-1,8-dione (5), (+)-syringaresinol (6), trans-coniferyl aldehyde (7), maslinic acid (8), oleanolic acid (9), daucosterol (10), and -sitosterol (11). CONCLUSION Compounds 1-11 were obtained from S. hispidicalyx for the first time.
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Affiliation(s)
- Fuqiang Jiang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
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