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Thakur N, Murali K, Bhadoriya K, Tripathi YC, Varshney VK. Phytochemical exploration of Neolitsea pallens leaves using UPLC-Q-TOF-MS/MS approach. Sci Rep 2024; 14:7770. [PMID: 38565919 PMCID: PMC10987493 DOI: 10.1038/s41598-024-58282-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024] Open
Abstract
Neolitsea pallens (D. Don) Momiyama & H. Hara (Family: Lauraceae), commonly known as Pale Litsea, is an evergreen small tree, distributed in India at altitudes of 1500-3000 m. Traditionally utilized for various purposes, its leaves and bark are used as spices, and the plant is valued in preparing a hair tonic from freshly pressed juice. Secondary metabolites of the leaves have not comprehensively been analysed so far. The objective of the study was to determine the chemical composition of the leaves by analysing their 25% aqueous methanol extract with the aid of ultra-performance liquid chromatography quadrupole time of flight tandem mass spectrometry. Overall, 56 compounds were identified in the study. Phenolics represented by phenolic acids, phenolic glycosides, proanthocyanidins, and flavonoids were the main components of the extract.
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Affiliation(s)
- Nisha Thakur
- Chemistry and Bio-Prospecting Division, Forest Research Institute, Dehradun, India
| | - K Murali
- Chemistry and Bio-Prospecting Division, Forest Research Institute, Dehradun, India.
| | - Khushaboo Bhadoriya
- Chemistry and Bio-Prospecting Division, Forest Research Institute, Dehradun, India
| | - Y C Tripathi
- Chemistry and Bio-Prospecting Division, Forest Research Institute, Dehradun, India
| | - V K Varshney
- Chemistry and Bio-Prospecting Division, Forest Research Institute, Dehradun, India.
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Chen XM, Lu W, Zhang ZH, Wang PP, Zhang XJ, Xiao CJ, Zhang Q, Gao JM, Li CH. Discovery of diversified cassane diterpenoids as potent antibacterial agents from Caesaplinia pulcherrima and their mechanisms. PEST MANAGEMENT SCIENCE 2023; 79:2539-2555. [PMID: 36864521 DOI: 10.1002/ps.7430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/20/2023] [Accepted: 03/02/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Natural products play a significant role in the development of novel bactericide candidates. Caesalpinia pulcherrima, a traditional medicine, had anti-inflammatory, antimicrobial, and antifeedant activities, therefore the previous bioassay results of C. pulcherrima implied that its main active ingredients may have potential to be used as botanical bactericides. RESULTS Bio-guided isolation of C. pulcherrima was conducted to obtain 11 novel cassane diterpenoids (capulchemins A-K) and 10 known sesquiterpenes. Their structures were established by extensive spectroscopic methods and single-crystal X-ray diffraction analyses. Capulchemins A-F possess a rare aromatic C ring, while capulchemin K with a 15,16-degradative carbon skeleton represents a rare group of cassane diterpenes. Capulchemin A exhibited remarkable antibacterial activity against four phytopathogenic bacteria, particularly against Pseudomonas syringae pv. actinidae and Bacillus cereus, with minimal inhibitory concentration values of 3.13 μM. Meanwhile, capulchemin A showed significant control effect on kiwifruit canker in vivo. Further investigation of its mechanism of antibacterial activity revealed that compound 1 was closely related to destroy cell membrane to cause cell death. Additionally, some of those cassane diterpenoids showed potential antifeedant against Mythimna separate walker and Plutella xylostella. Consequently, capulchemin A could have the potential to be used as a template for the development for new eco-friendly NP-based bactericides. CONCLUSION These data contribute to a better understanding of the antibacterial activity of cassane diterpenes. Cassane diterpenes have been discovered to be leading to broad application prospects in the development as novel botanical bactericides. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xiu-Mei Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, P. R. China
| | - Wang Lu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, P. R. China
| | - Zi-Han Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, P. R. China
| | - Pan-Pan Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, P. R. China
| | - Xiu-Juan Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, P. R. China
| | - Chao-Jiang Xiao
- Yunnan Key Laboratory of Screening and Research on Anti-pathogenic Plant Resources from West Yunnan, College of Pharmacy, Dali University, Dali, P. R. China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, P. R. China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, P. R. China
| | - Chun-Huan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, P. R. China
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Chemical characteristics of the sesquiterpenes and diterpenes from Lauraceae family and their multifaceted health benefits: A review. Heliyon 2022; 8:e12013. [PMID: 36590503 PMCID: PMC9801090 DOI: 10.1016/j.heliyon.2022.e12013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 09/15/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022] Open
Abstract
Lauraceae is a large family with significant economic and medicinal value. Bioactive ingredients from Lauraceae plants have contributed greatly to medicines, food nutrients and fine chemical products. In recent years, quite a few sesquiterpenes and diterpenes with unique structures have been achieved from Lauraceae and their potential benefits are embodied in a wide range of health areas. To our knowledge, there is no review to summarizes these constituents and their biological effects systematically. This current work aims to classify and ascribe the structural types and bioactivities of the identified sesquiterpenes and diterpenes. Herein, a total of 362 sesquiterpenes and 69 diterpenes were comprehensively complied. The various bioactivities could be recognized as cytotoxicity, anti-proliferation and/or anti-apoptosis, anti-inflammation, anti-oxidation, anti-bacterium, etc. This updated data could serve as a catalysis of these sesquiterpenes and diterpenes for the future medical and industrial applications.
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Qin J, Liao CN, Chen WW, Li HY, Su J, Wu XD, He JB, Zhang GH. New limonoids and quinolone alkaloids with cytotoxic and anti-platelet aggregation activities from Evodia rutaecarpa (Juss.) Benth. Fitoterapia 2021; 152:104875. [PMID: 33675886 DOI: 10.1016/j.fitote.2021.104875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/27/2021] [Accepted: 02/28/2021] [Indexed: 12/24/2022]
Abstract
One new limonoid, named 19-hydroxy methyl isoobacunoate diosphenol (1); one new degraded limonoid, named 9α-methoxyl dictamdiol (9); two new quinolone alkaloids, 1-methyl-3-[(7E,9E,12Z)-7,9,12-pentadecadienyl]-4(1H)-quinolone (11) and 1-methyl-3-[(7E,9E,11E)-7,9,11-pentadecadienyl]-4(1H)-quinolone (12), along with eight known compounds, evodol (2), 7β-acetoxy-5-epilimonin (3), rutaevine (4), 6β-acetoxy-5-epilimonin (5), limonin (6), obacunone (7), clauemargine L (8), hiiranlactone E (10) were isolated from the fruits of Evodia rutaecarpa (Juss.) Benth.. Structures of the four new compounds were elucidated on the basis of extensive spectroscopic techniques, including 1D and 2D NMR techniques. Compounds 3, 5, 9, 11 and 12 showed obviously cytotoxic activity against six human tumor lines, while compounds 11, 12 displayed anti-platelet aggregation induced by ADP at 50 μM and 100 μM.
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Affiliation(s)
- Jing Qin
- School of Medicine, Kunming University, Kunming, PR China.
| | - Chao-Nan Liao
- School of Medicine, Kunming University, Kunming, PR China
| | - Wei-Wei Chen
- School of Medicine, Kunming University, Kunming, PR China
| | - Hong-You Li
- School of Medicine, Kunming University, Kunming, PR China
| | - Jia Su
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Xing-De Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Jiang-Bo He
- School of Medicine, Kunming University, Kunming, PR China.
| | - Gao-Hong Zhang
- School of Medicine, Kunming University, Kunming, PR China.
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Immunomodulatory Effects of Taiwanese Neolitsea Species on Th1 and Th2 Functionality. J Immunol Res 2017; 2017:3529859. [PMID: 28781969 PMCID: PMC5525079 DOI: 10.1155/2017/3529859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 05/08/2017] [Accepted: 05/24/2017] [Indexed: 02/06/2023] Open
Abstract
Neolitsea species, medicinal plants belonging to Lauraceae, contain rich alkaloids, steroids, sesquiterpenoids, and triterpenoids which possess antimicrobial, antioxidant, and anti-inflammatory bioactivities. However, species differences in the immunomodulatory effects and evidence pertaining to the effects of Neolitsea species on adaptive immunity are scarce. This study aimed to evaluate the immunomodulatory properties of ten Taiwanese Neolitsea plants on T helper (Th) cell functionality, especially Th1 and Th2. Most of the 29 crude extracts of Neolitsea were not toxic to splenocytes, except N. buisanensis roots. N. aciculata and N. villosa leaf extracts possessed differential immunomodulatory effects on Th1/Th2 balance. N. aciculata var. variabillima and N. hiiranensis leaf extracts attenuated both Th1 and Th2 cytokines while N. konishii dramatically suppressed IFN-γ production. As N. aciculata var. variabillima and N. konishii leaf extracts significantly attenuated Th1 functionality, we further evaluated their effects on CD4 cells under CD3/CD28 stimulation. N. aciculata var. variabillima significantly suppressed IFN-γ, IL-10, and IL-17, demonstrating the broad suppressive effects on T helper cells; N. konishii significantly suppressed IFN-γ and IL-10 production, while the production of IL-17 was not altered. Collectively, these data demonstrated that leaf extracts of Taiwanese Neolitsea species contain phytochemicals with potentials to be developed as selective immunomodulators.
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Cheng YH, Chen IS, Lin YC, Tung CW, Chang HS, Wang CC. Attenuation of antigen-specific T helper 1 immunity by Neolitsea hiiranensis and its derived terpenoids. PeerJ 2016; 4:e2758. [PMID: 28344896 PMCID: PMC5363408 DOI: 10.7717/peerj.2758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/04/2016] [Indexed: 01/10/2023] Open
Abstract
Background T cells play a pivotal role in the adaptive immunity that participates in a wide range of immune responses through a complicated cytokine network. Imbalance of T-cell responses is involved in several immune disorders. Neolitsea species, one of the biggest genera in the family Lauraceae, have been employed widely as folk medicines for a long time in Asia. Previous phytochemical investigations revealed the abundance of terpenes in the leaves of N. hiiranensis, an endemic Neolitsea in Taiwan, and demonstrated anti-inflammatory activities. However, the effect of N. hiiranensis on the functionality of immune cells, especially T cells, is still unclear. In this study, we utilize in vitro and in vivo approaches to characterize the effects of leaves of N. hiiranensis and its terpenoids on adaptive immune responses. Methods Dried leaves of N. hiiranensis were extracted three times with cold methanol to prepare crude extracts and to isolate its secondary metabolites. The ovalbumin (OVA)-sensitized BALB/c mice were administrated with N. hiiranensis extracts (5–20 mg/kg). The serum and splenocytes of treated mice were collected to evaluate the immunomodulatory effects of N. hiiranensis on the production of OVA-specific antibodies and cytokines. To further identify the N. hiiranensis-derived compounds with immunomodulatory potentials, OVA-primed splenocytes were treated with compounds isolated from N. hiiranensis by determining the cell viability, cytokine productions, and mRNA expression in the presence of OVA in vitro. Results Crude extracts of leaves of N. hiiranensis significantly inhibited IL-12, IFN-γ, and IL-2 cytokine productions as well as the serum levels of antigen-specific IgM and IgG2ain vivo. Two of fourteen selected terpenoids and one diterpenoid derived from the leaves of N. hiiranensis suppressed IFN-γ in vitro. In addition, β-caryophyllene oxide attenuated the expression of IFN-γ, T-bet, and IL-12Rβ2 in a dose-dependent manner. N. hiiranensis-derived β-caryophyllene oxide inhibited several aspects of adaptive immune responses, including T-cell differentiation, IFN-γ production, and Th1-assocaited genes. Conclusion As IFN-γ is the key cytokine secreted by T helper-1 cells and plays a pivotal role in Th1 immune responses, our results suggested that the N. hiiranensis and its terpenoids may possess potential therapeutic effects on Th1-mediated immune disorders.
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Affiliation(s)
- Yin-Hua Cheng
- Ph.D. Program in Toxicology, College of Pharmacy, Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Ih-Sheng Chen
- School of Pharmacy, Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Ying-Chi Lin
- Ph.D. Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Wei Tung
- Ph.D. Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsun-Shuo Chang
- School of Pharmacy, Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Chia-Chi Wang
- Ph.D. Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
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Chang HS, Chen IS. Chemical constituents and bioactivity of Formosan lauraceous plants. J Food Drug Anal 2016; 24:247-263. [PMID: 28911577 PMCID: PMC9339549 DOI: 10.1016/j.jfda.2015.10.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 09/10/2015] [Accepted: 10/13/2015] [Indexed: 01/12/2023] Open
Abstract
Taiwan is rich in lauraceous plants. A review of 197 references based on the chemical analysis and bioactivity of indigenous lauraceous plants carried out by native scientists from 1963 to 2014 has been compiled. About 303 new compounds and thousands of known compounds comprising alkaloids and non-alkaloids with diverse structures have been isolated or identified from indigenous plants belonging to the 11 lauraceous genera. The volatile components, however, have been excluded from this review. This review provides an overview of the past efforts of Taiwan scientists working on secondary metabolites and their bioactivity in native lauraceous plants. The potential of lauraceous plants worthy of further study is also noted. The contents will be helpful for the chemotaxonomy of Lauraceae and be of value for the development of native Formosan lauraceous plants.
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Affiliation(s)
- Hsun-Shuo Chang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung,
Taiwan, ROC
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung,
Taiwan, ROC
| | - Ih-Sheng Chen
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung,
Taiwan, ROC
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung,
Taiwan, ROC
- Corresponding author. School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan First Road, Kaohsiung City 80708, Taiwan, ROC. E-mail address: (I.-S. Chen)
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Cao Y, Gao X, Su G, Yu X, Tu P, Chai X. The Genus
Neolitsea
of Lauraceae: A Phytochemical and Biological Progress. Chem Biodivers 2015; 12:1443-65. [DOI: 10.1002/cbdv.201400084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Yuan Cao
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 North 3rd Ring Road East, Chaoyang District, Beijing 100029, P. R. China, (phone/fax: +86‐10‐64286350)
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Southern Middle Ring Road, Chaoyang District, Beijing 100102, P. R. China
| | - Xiao‐Li Gao
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 North 3rd Ring Road East, Chaoyang District, Beijing 100029, P. R. China, (phone/fax: +86‐10‐64286350)
| | - Guo‐Zhu Su
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 North 3rd Ring Road East, Chaoyang District, Beijing 100029, P. R. China, (phone/fax: +86‐10‐64286350)
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Southern Middle Ring Road, Chaoyang District, Beijing 100102, P. R. China
| | - Xue‐Long Yu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 North 3rd Ring Road East, Chaoyang District, Beijing 100029, P. R. China, (phone/fax: +86‐10‐64286350)
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wangjing Southern Middle Ring Road, Chaoyang District, Beijing 100102, P. R. China
| | - Peng‐Fei Tu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 North 3rd Ring Road East, Chaoyang District, Beijing 100029, P. R. China, (phone/fax: +86‐10‐64286350)
| | - Xing‐Yun Chai
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11 North 3rd Ring Road East, Chaoyang District, Beijing 100029, P. R. China, (phone/fax: +86‐10‐64286350)
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Schepetkin IA, Khlebnikov AI, Kirpotina LN, Quinn MT. Antagonism of human formyl peptide receptor 1 with natural compounds and their synthetic derivatives. Int Immunopharmacol 2015; 37:43-58. [PMID: 26382576 DOI: 10.1016/j.intimp.2015.08.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 08/25/2015] [Accepted: 08/28/2015] [Indexed: 12/18/2022]
Abstract
Formyl peptide receptor 1 (FPR1) regulates a wide variety of neutrophil functional responses and plays an important role in inflammation and the pathogenesis of various diseases. To date, a variety of natural and synthetic molecules have been identified as FPR1 ligands. Here, we review current knowledge on natural products and natural product-inspired small molecules reported to antagonize and/or inhibit the FPR1-mediated responses. Based on this literature, additional screening of selected commercially available natural compounds for their ability to inhibit fMLF-induced Ca(2+) mobilization in human neutrophils and FPR1 transfected HL-60 cells, and pharmacophore modeling, natural products with potential as FPR1 antagonists are considered and discussed in this review. The identification and characterization of natural products that antagonize FPR1 activity may have potential for the development of novel therapeutics to limit or alter the outcome of inflammatory processes.
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Affiliation(s)
- Igor A Schepetkin
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, United States
| | - Andrei I Khlebnikov
- Department of Biotechnology and Organic Chemistry, Tomsk Polytechnic University, Tomsk 634050, Russia; Department of Chemistry, Altai State Technical University, Barnaul, Russia
| | - Liliya N Kirpotina
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, United States
| | - Mark T Quinn
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, United States.
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Wang WY, Ma P, Xu LJ, Peng Y, Xiao PG. Chemical Constituents and Biological Activities of Plants from the GenusNeolitsea. Chem Biodivers 2014; 11:55-72. [DOI: 10.1002/cbdv.201200092] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Indexed: 11/11/2022]
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Qing X, Zhao T, Guo RX, Wu YB, Shi QW, Gu YC, Kiyota H. Chemical constituents of plants from the genus Neolitsea. HETEROCYCL COMMUN 2014. [DOI: 10.1515/hc-2013-0239] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Affiliation(s)
- Braulio M Fraga
- Instituto de Productos Naturales y Agrobiología, CSIC, 38206-La Laguna, Tenerife, Canary Islands, Spain.
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Wong SL, Chang HS, Wang GJ, Chiang MY, Huang HY, Chen CH, Tsai SC, Lin CH, Chen IS. Secondary metabolites from the roots of Neolitsea daibuensis and their anti-inflammatory activity. JOURNAL OF NATURAL PRODUCTS 2011; 74:2489-2496. [PMID: 22148193 DOI: 10.1021/np100874f] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Bioassay-guided fractionation of the roots of Neolitsea daibuensis afforded three new β-carboline alkaloids, daibucarbolines A-C (1-3), three new sesquiterpenoids, daibulactones A and B (4 and 5) and daibuoxide (6), and 20 known compounds. The structures of 1-6 were determined by spectroscopic analysis and single-crystal X-ray diffraction. Daibucarboline A (1), isolinderalactone (7), 7-O-methylnaringenin (8), and prunetin (9) exhibited moderate iNOS inhibitory activity, with IC₅₀ values of 18.41, 0.30, 19.55, and 10.50 μM, respectively.
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Affiliation(s)
- Su-Ling Wong
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan 807, Republic of China
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Mao SC, Liu DQ, Yu XQ, Lai XP. A new polyacetylenic fatty acid and other secondary metabolites from the Chinese green alga Caulerpa racemosa (Caulerpaceae) and their chemotaxonomic significance. BIOCHEM SYST ECOL 2011. [DOI: 10.1016/j.bse.2011.08.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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