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Tang J, Zhang Q, Wu D, Chen SY, Chen Y, Li YT, Zheng L, Huang Y, Lan YY, Wang YL, Gong ZP. [Potential pharmacodynamic substances of Laportea bulbifera in treatment of rheumatoid arthritis based on serum pharmacochemistry and pharmacology]. Zhongguo Zhong Yao Za Zhi 2022; 47:4755-4764. [PMID: 36164883 DOI: 10.19540/j.cnki.cjcmm.20220609.201] [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] [Indexed: 06/16/2023]
Abstract
The present study investigated the pharmacodynamic material basis of Laportea bulbifera in the treatment of rheumatoid arthritis. Firstly, human rheumatoid arthritis fibroblast-like synoviocyte line MH7A was cultured in vitro and treated with tumor necrosis factor alpha(TNF-α, 50 ng·mL~(-1)). The proliferation and the levels of inflammatory cytokines such as prostaglandin E2(PGE2), interleukin-1β(IL-1β), and interleukin-6(IL-6) of the MH7A cells exposed to the serum containing L. bulbifera were determined to evaluate the anti-rheumatoid arthritis effects of the serum. Furthermore, the ultra-performance liquid chromatography tandem mass spectrometry fingerprints of the L. bulbifera crude extract, the drug-containing serum, and the drug-free serum were compared to identify the compounds newly generated in the serum after oral administration of the extract. According to the peak areas of common peaks and the results of anti-rheumatoid arthritis effect test, the active components were identified. The serum containing L. bulbifera significantly inhibited the proliferation of the MH7A cells activated by TNF-α and the expression of PGE2, IL-6, and IL-1β. Thirty newly generated compounds were detected in the drug-containing serum. Among them, neochlorogenic acid, cryptochlorogenic acid, chlorogenic acid, rutin, isoquercitrin, luteoloside, kaempferol-3-O-rutinoside, and quercitrin were also present in the crude extract. Twelve characteristic peaks(3, 7, 8, 14, 18, 19, 21, 23, 24, m6, m7, and m15) were significantly correlated with the pharmaceutical effect. According to the correlations, neochlorogenic acid, cryptochlorogenic acid, and chlorogenic acid had great contributions to the anti-rheumatoid arthritis activity. This study preliminarily clarified the potential pharmacodynamic substances of L. bulbifera in the treatment of rheumatoid arthritis, which laid a theoretical and experimental foundation for further development and application of the medicinal plant.
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Affiliation(s)
- Juan Tang
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China Center for Drug Inspection,Guizhou Medical Products Administration Guiyang 550081, China
| | - Qing Zhang
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Dan Wu
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Si-Ying Chen
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Yi Chen
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Yue-Ting Li
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Lin Zheng
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Yong Huang
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Yan-Yu Lan
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Yong-Lin Wang
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
| | - Zi-Peng Gong
- Provincial Key Laboratory of Pharmaceutics in Guizhou Province, Engineering Research Center for the Development and Application of Ethnic Medicine and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Guizhou Medical University Guiyang 550004, China
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Yang WJ, Ma YM, Gong P, Wang L, Chang XN, Liu M, Shuai ZR. Effects of 3, 4-divanillyltetrahydrofuran from Urtica fissa on sexual dysfunction in diabetic mice. J Ethnopharmacol 2022; 289:115060. [PMID: 35121049 DOI: 10.1016/j.jep.2022.115060] [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: 08/11/2021] [Revised: 12/30/2021] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Urtica fissa E. Pritz. are important herbs and have been traditionally used as ethnic medicine to treat rheumatism, inflammation, diabetes, and benign prostatic hyperplasia by the Han, Uighur, and other minorities in China, and also as an aphrodisiac in Uighur medicine. AIMS OF THE STUDY To determine the effect and potential mechanism of 3, 4-divanillyltetrahydrofuran (DVTF), one of the main active components isolated from U. fissa on hypogonadism in diabetic mice. MATERIALS AND METHODS The active compound DVTF was extracted and separated from the roots of U. fissa and identified using mass spectrometry and nuclear magnetic resonance spectroscopy. A mouse model of diabetes was established using high fat and sugar diet combined with streptozotocin. In the treatment groups, mice were received different doses of DVTF for 4 weeks. Fasting blood glucose levels, physiological and biochemical indices, and the mating behavior of DM mice were analyzed. Changes in testicular morphology were assessed using light microscopy and transmission electron microscopy. The expression of testosterone synthesis-related signaling proteins was detected using western blotting. Molecular docking was used to determine the binding ability of DVTF to Nur77. RESULTS In diabetic mice, body weight and fasting blood glucose levels decreased. Mating behavior, including mount latency, mount number, and intromission number, was improved following DVTF treatment. Plasma total testosterone, free testosterone, and insulin resistance were positively associated with the recovery of testicular pathological structures in diabetic mice. DVTF treatment increased the expression of Nur77, StAR, and P450scc in the testes of diabetic mice. DVTF and Nur77 formed chemical bonds at five sites. CONCLUSION As one of the main active components of U. fissa, DVTF exert potential therapeutic effects on testicular injury and hypogonadism caused by diabetes through activating the expression of Nur77 and testosterone synthesis related proteins. Our result will provide new insight for the clinical application of Urtica fissa E. Pritz., especially DVTF, as a potential drug candidate in the treatment of hypogonadism in diabetes.
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Affiliation(s)
- Wen-Juan Yang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Yang-Min Ma
- College of Chemistry and Chemical Engineering(,), Shaanxi University of Science & Technology, Xi'an, 710021, China; Key Laboratory of Chemical Additives for China National Light Industry, Xi'an, 710021, China.
| | - Pin Gong
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Lan Wang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Xiang-Na Chang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Meng Liu
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Zhao-Rui Shuai
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
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Tijani RO, Molina-Tijeras JA, Vezza T, Ruiz-Malagón AJ, Cádiz-Gurrea MDLL, Segura-Carretero A, Abiodun OO, Galvez J. Myrianthus arboreus P. Beauv improves insulin sensitivity in high fat diet-induced obese mice by reducing inflammatory pathways activation. J Ethnopharmacol 2022; 282:114651. [PMID: 34537282 DOI: 10.1016/j.jep.2021.114651] [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: 01/02/2021] [Revised: 09/02/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Metabolic syndrome is currently recognized as the major cause of morbidity, with dramatic complications on life expectancy and health status. Myrianthus arboreus is a medicinal plant traditionally used in local communities as a safe remedy in treating diabetes and other metabolic diseases. AIM OF THE STUDY This study aimed to investigate the impact of a methanol extract of Myrianthus arboreus leaf (MAL) in a mice model of metabolic syndrome induced by a high-fat diet (HFD) intake. MATERIALS AND METHODS Male C57BL/6J mice were assigned to the following groups: control, obese control, and obese treated with MAL extract (10, 25, and 50 mg/kg) for 6 weeks. Control mice received a standard chow diet, while all obese mice were fed with HFD. Animal weight and food consumption were periodically measured. At the end of the treatment, fasting blood glucose and metabolic plasma analysis (insulin level, triglycerides, and total cholesterol (TC)) were performed. The HFD-induced inflammatory status and the expression of several obesity-related markers were evaluated in liver and fat using qPCR and Western blot analysis. In addition, the phytochemical composition of MAL was identified by GC-MS and HPLC-MS. RESULTS MAL administration significantly reduced body weight gain, basal glycemia, and insulin resistance, and improved plasma lipid profile compared with HFD-fed mice. Similarly, this extract improved the HFD-associated inflammatory status in mice by gene expression modulation of different inflammatory markers involved in this experimentally induced metabolic condition. CONCLUSION These results demonstrate the novel applicability of MAL, thus suggesting it as a promising therapeutic approach for the management of metabolic disorders.
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Affiliation(s)
- Rasidat O Tijani
- Department of Pharmacology and Therapeutics, University of Ibadan, Ibadan, Nigeria; Department of Pharmaceutical Technology, Moshood Abiola Polytechnic, Ojere, Abeokuta, Nigeria
| | - Jose Alberto Molina-Tijeras
- CIBER-EHD, Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012, Granada, Spain
| | - Teresa Vezza
- CIBER-EHD, Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012, Granada, Spain.
| | - Antonio Jesús Ruiz-Malagón
- CIBER-EHD, Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012, Granada, Spain
| | - María de la Luz Cádiz-Gurrea
- Department of Analytical Chemistry, Faculty of Science, University of Granada, Granada, Spain; Research and Development Functional Food Centre, Health Science Technological Park, 18016, Granada, Spain
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, Faculty of Science, University of Granada, Granada, Spain; Research and Development Functional Food Centre, Health Science Technological Park, 18016, Granada, Spain
| | - Oyindamola O Abiodun
- Department of Pharmacology and Therapeutics, University of Ibadan, Ibadan, Nigeria.
| | - Julio Galvez
- CIBER-EHD, Department of Pharmacology, Center for Biomedical Research (CIBM), University of Granada, 18071, Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012, Granada, Spain
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Zhang H, Chen Y, Li XB, Deng WX, Wang MY. [Active constituents of Urtica fissa in inhibition of benign prostatic hyperplasia]. Zhongguo Zhong Yao Za Zhi 2022; 47:419-427. [PMID: 35178984 DOI: 10.19540/j.cnki.cjcmm.20211011.202] [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] [Indexed: 06/14/2023]
Abstract
The present study investigated the material basis of Urtica fissa for the inhibition of benign prostatic hyperplasia(BPH). The active fractions were screened, and the extracts of dichloromethane and ethyl acetate exhibited significantly inhibitory activities against 5α-reductase in vitro and BPH in model rats. The chemical constituents in the active fractions were systematically investigated, and 28 compounds were obtained, which were identified as lobechine methyl ester(1), dibutyl-O-phthalate(2), 1-monolinolein(3), epipinoresinol(4), 5-hydroxy-3,4-dimethyl-5-pentanyl-2(5H)-furanone(5), E-7,9-diene-11-methenyl palmitic acid(6), evofolin B(7), ficusal(8), threo-2,3-bis-(4-hydroxy-3-methoxyphenyl)-3-ethoxypropan-1-ol(9), α-viniferin(10),(9R,7E)-9-hydroxy-5,7-mengatigmadien-4-one-9-O-β-D-glucopyranoside(11), indole-3-carboxaldehyde(12), p-hydroxy ethyl cinnamate(13), benzyl alcohol-O-β-D-glucoside(14), L-methionine(15), 4-methoxyaniline(16), 6-aminopurine(17), 8'-acetyl oilvil(18), 4-methoxyl-8'-acetyl oilvil(19), vanillic acid(20), β-hydroxypropiovanillone(21), 7-hydroxy-6-methoxycoumarin(22), p-hydroxybenzaldehyde(23), pinoresinol(24), erythro-1,2-bis-(4-hydroxy-3-methoxyphenyl)-1,3-propanediol(25), urticol(26), urticol-7-O-β-D-glucopyranoside(27), and lobechine(28). Compounds 1-17 were isolated from U. fissa for the first time. Meanwhile, compound 1 was a new natural product. Compounds 10, 11, 19, 21, and 27 exhibited significant inhibitory effects on 5α-reductase.
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Affiliation(s)
- Hao Zhang
- School of Pharmacy, Shanghai Jiao Tong University Shanghai 200240, China
| | - Yan Chen
- School of Pharmacy, Shanghai Jiao Tong University Shanghai 200240, China
| | - Xiao-Bo Li
- School of Pharmacy, Shanghai Jiao Tong University Shanghai 200240, China
| | - Wei-Xiang Deng
- School of Pharmacy, Shanghai Jiao Tong University Shanghai 200240, China
| | - Meng-Yue Wang
- School of Pharmacy, Shanghai Jiao Tong University Shanghai 200240, China
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Naz I, Khan MR, Zai JA, Batool R, Zahra Z, Tahir A. Pilea umbrosa ameliorate CCl 4 induced hepatic injuries by regulating endoplasmic reticulum stress, pro-inflammatory and fibrosis genes in rat. Environ Health Prev Med 2020; 25:53. [PMID: 32917140 PMCID: PMC7488709 DOI: 10.1186/s12199-020-00893-2] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 09/01/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Pilea umbrosa (Urticaceae) is used by local communities (district Abbotabad) for liver disorders, as anticancer, in rheumatism and in skin disorders. METHODS Methanol extract of P. umbrosa (PUM) was investigated for the presence of polyphenolic constituents by HPLC-DAD analysis. PUM (150 mg/kg and 300 mg/kg) was administered on alternate days for eight weeks in rats exposed with carbon tetrachloride (CCl4). Serum analysis was performed for liver function tests while in liver tissues level of antioxidant enzymes and biochemical markers were also studied. In addition, semi quantitative estimation of antioxidant genes, endoplasmic reticulum (ER) induced stress markers, pro-inflammatory cytokines and fibrosis related genes were carried out on liver tissues by RT-PCR analysis. Liver tissues were also studied for histopathological injuries. RESULTS Level of antioxidant enzymes such as catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and glutathione (GSH) decreased (p < 0.05) whereas level of thiobarbituric acid reactive substance (TBARS), H2O2 and nitrite increased in liver tissues of CCl4 treated rat. Likewise increase in the level of serum markers; alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP) and total bilirubin was observed. Moreover, CCl4 caused many fold increase in expression of ER stress markers; glucose regulated protein (GRP-78), x-box binding protein1-total (XBP-1 t), x-box binding protein1-unspliced (XBP-1 u) and x-box binding protein1-spliced (XBP-1 s). The level of inflammatory mediators such as tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and monocyte chemoattractant protein-1 (MCP-1) was aggregated whereas suppressed the level of antioxidant enzymes; γ-glutamylcysteine ligase (GCLC), protein disulfide isomerase (PDI) and nuclear erythroid 2 p45-related factor 2 (Nrf-2). Additionally, level of fibrosis markers; transforming growth factor-β (TGF-β), Smad-3 and collagen type 1 (Col1-α) increased with CCl4 induced liver toxicity. Histopathological scrutiny depicted damaged liver cells, neutrophils infiltration and dilated sinusoids in CCl4 intoxicated rats. PUM was enriched with rutin, catechin, caffeic acid and apigenin as evidenced by HPLC analysis. Simultaneous administration of PUM and CCl4 in rats retrieved the normal expression of these markers and prevented hepatic injuries. CONCLUSION Collectively these results suggest that PUM constituted of strong antioxidant chemicals and could be a potential therapeutic agent for stress related liver disorders.
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Affiliation(s)
- Irum Naz
- Faculty of Biological Sciences, Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Rashid Khan
- Faculty of Biological Sciences, Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Jawaid Ahmed Zai
- Faculty of Biological Sciences, Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Riffat Batool
- Faculty of Biological Sciences, Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Zartash Zahra
- Faculty of Biological Sciences, Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Aemin Tahir
- Faculty of Biological Sciences, Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
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Benvenutti RC, Dalla Vecchia CA, Locateli G, Serpa PZ, Lutinski JA, Rodrigues Junior SA, Corralo V, Gutiérrez MV, Vilegas W, Somensi LB, Longo B, Knihs JF, Mota da Silva L, de Andrade SF, Roman Junior WA. Gastroprotective activity of hydroalcoholic extract of the leaves of Urera baccifera in rodents. J Ethnopharmacol 2020; 250:112473. [PMID: 31836518 DOI: 10.1016/j.jep.2019.112473] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 06/17/2019] [Revised: 12/01/2019] [Accepted: 12/09/2019] [Indexed: 05/24/2023]
Abstract
ETHNOPHARMACOLOGICAL IMPORTANCE The species Urera baccifera (L.) Gaudich. ex Wedd. (Urticaceae) is native to the Americas and is distributed widely throughout Brazil, where it is known as urtiga-brava, urtiga-vermelha, or urtigão. The leaves are often used as anti-inflammatory and antirheumatic agents and for the treatment of gastric disorders. However, the pharmacological mode of action underlying the gastroprotection induced by this species has not been investigated. AIM OF THE STUDY To contribute to the knowledge of the gastroprotective mode of action of the hydroalcoholic extract of U. baccifera (HEU) leaves. MATERIALS AND METHODS Antiulcerogenic effect of HEU against ethanol-induced acute gastric ulcer was evaluated in rats and mice at doses of 3-300 mg/kg. NO-synthase inhibitor (L-NAME), SH blocker (NEM), cyclooxygenase inhibitor (indomethacin) and alpha 2-adrenergic receptor antagonist yohimbine were used to evaluate the participation of cytoprotective factors in HEU gastroprotection. Moreover, the levels of reduced gluthatione (GSH) and cytokines (TNF, IL-6, IL4 and IL-10), as well as the enzymatic activity of gluthatione S-transferase (GST), myeloperoxidase (MPO), superoxide dismutase (SOD) and catalase (CAT) were measure. Moreover, the samples were analyzed histologically and the antisecretory capability of HEU were quantified using pylorus ligated rats. RESULTS The phytochemical analysis of HEU (UPLC/ESI-IT-MS) identified the flavonoids diosmetin and apigenin glucuronide. Furthermore, HEU decreased the occurrence of ethanol-induced ulcers at 30 and 300 mg/kg by 57% and 66%, respectively, compared with the vehicle. The gastroprotective effects were accompanied by increased GSH levels and GST and SOD activity as well as by reduced MPO activity in vivo and in vitro, revealing antioxidant effects and inhibition of neutrophil infiltration. The beneficial effects of 30 and 300 mg/kg HEU were also observed upon histological analyses. Regarding the mode of action, the gastroprotective effect of HEU was abolished by the pre-administration of L-NAME, NEM, indomethacin or yohimbine. Moreover, HEU was able to decrease the IL-6, IL-4 and IL-10 in ulcerated tissue, as well as the pepsin activity of the gastric juice in pylorus-ligated rats. CONCLUSION Together, the results confirmed that the gastroprotection elicited by HEU was due reduction in oxidative damage, neutrophil migration, and peptic activity. This work validates the popular use of U. baccifera to treat gastric disorders and supports important future research for the identification of gastroprotective molecules from this species.
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Affiliation(s)
- Régis Carlos Benvenutti
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Cristian Alex Dalla Vecchia
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Gelvani Locateli
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Patrícia Zanotelli Serpa
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Junir Antonio Lutinski
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | | | - Vanessa Corralo
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Max Vidal Gutiérrez
- Instituto de Biociências, Universidade Estadual Paulista, CEP 70770-901, São Vicente, SP, Brazil
| | - Wagner Vilegas
- Instituto de Biociências, Universidade Estadual Paulista, CEP 70770-901, São Vicente, SP, Brazil
| | - Lincon Bordignon Somensi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Bruna Longo
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Jessica Ferreira Knihs
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Luisa Mota da Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Sérgio Faloni de Andrade
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Walter Antônio Roman Junior
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil.
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Abstract
Two new lignans named neourticol A (1) and neourticol B (2), together with seven known compounds (3-9), were isolated from Urticae Fissae Herba, a folk medicine for rheumatism arthritis in China. The active evaluation results showed that 1 and 2 possessed the potent anti-complement and anti-inflammatory activities.
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Affiliation(s)
- Meng-Yue Wang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Ying Zhang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Hao Zhang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiao-Ru Feng
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiao-Bo Li
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
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Doan Thi Thuy A, Trinh Thi Thanh V, Doan Thi Mai H, Le HT, Litaudon M, Nguyen VH, Chau VM, Pham VC. Cytotoxic Alkaloids from Leaves of Pilea aff. martinii. Planta Med 2019; 85:496-502. [PMID: 30791057 DOI: 10.1055/a-0826-0483] [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: 06/09/2023]
Abstract
Two new phenanthroquinolizidine alkaloids (1: and 2: ) and a new piperidine derivative (3: ) were isolated from the leaves of Pilea aff. martinii together with 3 known alkaloids: julandine (4: ), cryptopleurine (5: ), and 1,3,6,6-tetramethyl-5,6,7,8-tetrahydro-isoquinolin-8-one (6: ). Their structures were determined by spectral data analyses including mass spectrometry and 2-dimensional nuclear magnetic resonance data. The absolute configurations of 1: -3: were established by comparison of their experimental circular dichroism data with the calculated electronic circular dichroism spectra. The isolated compounds were evaluated for their cytotoxicity against 4 cancer cell lines: KB (mouth epidermal carcinoma cells), HepG-2 (human liver hepatocellular carcinoma cells), LU-1 (human lung adenocarcinoma cells), and MCF-7 (human breast cancer cells). The new phenanthroquinolizidine pileamartine D (2: ) showed strong and selective proliferation inhibition toward KB and HepG-2 cells with IC50 values of 25 and 27 nM, respectively. Pileamartine C (1: ), julandine (4: ), and cryptopleurine (5: ) exhibited cytotoxicity against 4 tested cancer cell lines with IC50 values less than 1 µM.
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Affiliation(s)
- Ai Doan Thi Thuy
- Advanced Center for Bioorganic Chemistry, Institute of Marine Biochemistry of the Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- National University of Agriculture, Trau Quy, Hanoi, Vietnam
| | - Van Trinh Thi Thanh
- Advanced Center for Bioorganic Chemistry, Institute of Marine Biochemistry of the Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Huong Doan Thi Mai
- Advanced Center for Bioorganic Chemistry, Institute of Marine Biochemistry of the Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Huyen Tram Le
- Hanoi University of Science and Technology (HUST), Hanoi, Vietnam
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS-ICSN, UPR 2301, Université Paris-Sud, Paris, France
| | - Van Hung Nguyen
- Advanced Center for Bioorganic Chemistry, Institute of Marine Biochemistry of the Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Van Minh Chau
- Advanced Center for Bioorganic Chemistry, Institute of Marine Biochemistry of the Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Van Cuong Pham
- Advanced Center for Bioorganic Chemistry, Institute of Marine Biochemistry of the Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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Lu X, Li XQ, Qin HH, Feng BM, Cheng XH, Yang QX, Yu DY, Shi LY, Yu ZX, Fang XX. Two new secolignans from the roots of Urtica fissa. J Asian Nat Prod Res 2019; 21:165-170. [PMID: 29224377 DOI: 10.1080/10286020.2017.1411347] [Citation(s) in RCA: 4] [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: 06/12/2017] [Accepted: 11/26/2017] [Indexed: 06/07/2023]
Abstract
Two new secolignans, 3,4-trans-3-hydroxymethyl-4-[bis(4-hydroxy-3- methoxyphenyl)methyl]butyrolactone (1) and 3,4-trans-3-hydroxymethyl-4- [bis(3,4-dimethoxyphenyl)methyl]butyrolactone (2) have been isolated from the roots of Urtica fissa E.Pritz. Their structures were determined on the basis of spectroscopic methods, especially 1H NMR, 13C NMR, 2D NMR, and HR-ESI-MS. The inhibitory effects on N1 and N2, two subtypes of neuraminidases (NAs), of these two compounds were assayed.
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Affiliation(s)
- Xuan Lu
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Xue-Qing Li
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Hai-Hong Qin
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Bao-Min Feng
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Xing-Hua Cheng
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Qing-Xiong Yang
- b School of Chemistry & Material Science , Guizhou Normal University , Guiyang 550001 , China
| | - Da-Yong Yu
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Li-Ying Shi
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Zong-Xia Yu
- a School of Life Sciences and Biotechnology , Dalian University , Dalian 116622 , China
| | - Xue-Xun Fang
- c Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, College of Life Sciences , Jilin University , Changchun 130012 , China
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10
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Zhang L, Andrew TL. Using the Surface Features of Plant Matter to Create All-Polymer Pseudocapacitors with High Areal Capacitance. ACS Appl Mater Interfaces 2018; 10:38574-38580. [PMID: 30335944 DOI: 10.1021/acsami.8b12551] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Controlling mesoscale organization in thick films of electroactive polymers is crucial for studying and optimizing charge and ion transport in these disordered materials. Conventional approaches focus on directing long-range polymer aggregation and/or crystallization during film formation by using interfaces, flow and/or shear forces. Here, we describe an alternative method that takes advantage of naturally textured biological substrates and vapor-coating to structure thick-conjugated polymer films. Reactive vapor-coating is a technique that enables in situ synthesis of doped conjugated polymers inside a reduced-pressure reactor. Reactive vapor deposition conformally coats the surface of plant matter, such as leaves and flower petals, with conducting polymer films while leaving these living substrates undamaged. Importantly, the intricate surface features of plant matter are faultlessly reproduced in the coating, effectively creating thick, high-surface-area, electrochemically active conducting polymer electrodes on plant matter. A microstructured, 10 μm thick film of p-doped poly(3,4-ethylenedioxythiophene) on a pilea involucrata leaf acts as an all-polymer pseudocapacitor with a higher areal capacitance (142 mF/cm2) than an analogous film on a planar plastic substrate lacking microstructure (50 mF/cm2). Taken together, reactive vapor deposition and microstructured plant matter present a unique combination of processing technique and substrate than can yield a diverse library of controllably microstructured electronic polymer films.
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Affiliation(s)
- Lushuai Zhang
- Departments of Chemistry and Chemical Engineering , University of Massachusetts Amherst , Amherst , Massachusetts 01003 , United States
| | - Trisha L Andrew
- Departments of Chemistry and Chemical Engineering , University of Massachusetts Amherst , Amherst , Massachusetts 01003 , United States
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11
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Kasangana PB, Haddad PS, Eid HM, Nachar A, Stevanovic T. Bioactive Pentacyclic Triterpenes from the Root Bark Extract of Myrianthus arboreus, a Species Used Traditionally to Treat Type-2 Diabetes. J Nat Prod 2018; 81:2169-2176. [PMID: 30336025 DOI: 10.1021/acs.jnatprod.8b00079] [Citation(s) in RCA: 5] [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: 06/08/2023]
Abstract
Four new Δ12 ursene-type pentacyclic triterpenes containing the trans-feruloyl moiety (1-4), along with ursolic acid (5), were isolated from a Myrianthus arboreus root bark ethanol extract, after bioassay-guided subfractionation of its hexane fraction. The structures of 1-4 were established on the basis of the results of standard spectroscopic analytical methods (IR, HRESIMS, GC-MS, 1D and 2D NMR). The compounds 3β- O- trans-feruloyl-2α,19α-dihydroxyurs-12-en-28-oic acid (1), 2α-acetoxy-3β- O- trans-feruloyl-19α-hydroxyurs-12-en-28-oic acid (3), and 5 were determined to decrease the activity of hepatocellular glucose-6-phosphatase (G6Pase) and to activate glycogen synthase (GS). Their action on G6Pase activity implicated both Akt and AMPK activation. In addition, these compounds were determined to stimulate GS via the phosphorylation of glycogen synthase kinase-3. Compound 3 showed the most potent effect in modulating glucose homeostasis in liver cells. This is the first comprehensive report on novel phytochemical components of the root bark extract of M. arboreus based on the isolation of the principles responsible for its antidiabetic effects.
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Affiliation(s)
- Pierre B Kasangana
- Wood Chemistry Laboratory, Department of Wood Sciences , Université Laval , 1045 Québec G1 V 0A6 , Canada
- Natural Health Products and Metabolic Diseases Laboratory, Department of Pharmacology and Physiology , Université de Montréal , Montréal H3C 3J7 , Canada
- Institute of Nutrition and Functional Foods , Université Laval , 2440 Boulevard Hochelaga , Québec City G1 V 0A6 , Canada
| | - Pierre S Haddad
- Natural Health Products and Metabolic Diseases Laboratory, Department of Pharmacology and Physiology , Université de Montréal , Montréal H3C 3J7 , Canada
- Institute of Nutrition and Functional Foods , Université Laval , 2440 Boulevard Hochelaga , Québec City G1 V 0A6 , Canada
| | - Hoda M Eid
- Natural Health Products and Metabolic Diseases Laboratory, Department of Pharmacology and Physiology , Université de Montréal , Montréal H3C 3J7 , Canada
- Institute of Nutrition and Functional Foods , Université Laval , 2440 Boulevard Hochelaga , Québec City G1 V 0A6 , Canada
- Department of Pharmacy , Beni-Suef University , El-Shahid/Shehata Ahmed Hijazy St 62514 , Beni-Suef , Egypt
| | - Abir Nachar
- Natural Health Products and Metabolic Diseases Laboratory, Department of Pharmacology and Physiology , Université de Montréal , Montréal H3C 3J7 , Canada
| | - Tatjana Stevanovic
- Wood Chemistry Laboratory, Department of Wood Sciences , Université Laval , 1045 Québec G1 V 0A6 , Canada
- Institute of Nutrition and Functional Foods , Université Laval , 2440 Boulevard Hochelaga , Québec City G1 V 0A6 , Canada
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Wang MY, Yang Y, Zhou XY, Wang SS, Duan SX, Li XB. The chemical constituents from Urtica fissa leaves. J Asian Nat Prod Res 2018; 20:709-718. [PMID: 28971690 DOI: 10.1080/10286020.2017.1383397] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 09/18/2017] [Indexed: 06/07/2023]
Abstract
A new ceramide urticamide (1), two new secolignans urticalactones I (2) and Ⅱ (3), and a new flavonoid glycoside urticaside (4), together with 15 known compounds (4-19), were isolated from the leaves of Urtica fissa, a folk medicine for rheumatism arthritis in China. The active evaluation results showed that 1, 2, 3, 8, and 13 possessed the potent anti-inflammatory. They could inhibit the release of NO and TNF-α in lipopolysaccharide (LPS) stimulated RAW 264.7 cells, with IC50 values less than 4.0 μM.
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Affiliation(s)
- Meng-Yue Wang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Yan Yang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xi-Yan Zhou
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Shang-Shang Wang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Shi-Xin Duan
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiao-Bo Li
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
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Abstract
Nettles (genus Urtica, family Urticaceae) are of considerable interest as preservatives in foods for both human and animal consumption. They have also been used for centuries in traditional medicine. This paper reviews the properties of nettles that make them suitable for wider applications in the food and pharmaceutical industries. Nettles contain a significant number of biologically-active compounds. For example, the leaves are rich sources of terpenoids, carotenoids and fatty acids, as well as of various essential amino acids, chlorophyll, vitamins, tannins, carbohydrates, sterols, polysaccharides, isolectins and minerals. Extracts from the aerial parts of nettles are rich sources of polyphenols, while the roots contain oleanol acid, sterols and steryl glycosides. Due to the variety of phytochemicals and their proportions they contain, nettles show noticeable activity against both Gram-positive and Gram-negative bacteria. These properties make nettles suitable for a range of possible applications, including functional food, dietary supplements and pharmacological formulations. Despite these benefits, the nettle is still an underestimated plant source. This paper provides a unique overview of the latest research on nettle plants focusing on the possibilities for transforming a common weed into a commercial plant with a wide range of applications. Special attention is paid to the antimicrobial activity of the active compounds in nettles and to possible uses of these valuable plants in food and feed formulations.
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Affiliation(s)
- Dorota Kregiel
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Science, Lodz University of Technology, 171/173 Wolczanska, 90-924 Lodz, Poland.
| | - Ewelina Pawlikowska
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Science, Lodz University of Technology, 171/173 Wolczanska, 90-924 Lodz, Poland.
| | - Hubert Antolak
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Science, Lodz University of Technology, 171/173 Wolczanska, 90-924 Lodz, Poland.
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Mosquera C, Panay AJ, Montoya G. Pentacyclic Triterpenes from Cecropia telenitida Can Function as Inhibitors of 11β-Hydroxysteroid Dehydrogenase Type 1. Molecules 2018; 23:molecules23061444. [PMID: 29899225 PMCID: PMC6099733 DOI: 10.3390/molecules23061444] [Citation(s) in RCA: 9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/05/2018] [Accepted: 06/08/2018] [Indexed: 11/16/2022] Open
Abstract
Plant extracts from the genus Cecropia have been used by Latin-American traditional medicine to treat metabolic disorders and diabetes. Previous results have shown that roots of Cecropia telenitida contain pentacyclic triterpenes and these molecules display a hypoglycemic effect in an insulin-resistant murine model. The pharmacological target of these molecules, however, remains unknown. Several lines of evidence indicate that pentacyclic triterpenes inhibit the 11β-hydroxysteroid dehydrogenase type 1 enzyme, which highlights the potential use of this type of natural product as phytotherapeutic or botanical dietary supplements. The main goal of the study was the evaluation of the inhibitory effect of Cecropia telenitida molecules on 11β-hydroxysteroid dehydrogenase type 1 enzyme activity. A pre-fractionated chemical library was obtained from the roots of Cecropia telenitida using several automated chromatography separation steps and a homogeneous time resolved fluorescence assay was used for the bio-guided isolation of inhibiting molecules. The screening of a chemical library consisting of 125 chemical purified fractions obtained from Cecropia telenitida roots identified one fraction displaying 82% inhibition of the formation of cortisol by the 11β-hydroxysteroid dehydrogenase type 1 enzyme. Furthermore, a molecule displaying IC50 of 0.95 ± 0.09 µM was isolated from this purified fraction and structurally characterized, which confirms that a pentacyclic triterpene scaffold was responsible for the observed inhibition. Our results support the hypothesis that pentacyclic triterpene molecules from Cecropia telenitida can inhibit 11β-hydroxysteroid dehydrogenase type 1 enzyme activity. These findings highlight the potential ethnopharmacological use of plants from the genus Cecropia for the treatment of metabolic disorders and diabetes.
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Affiliation(s)
- Catalina Mosquera
- Department of Chemical Sciences, Faculty of Natural Sciences, Universidad Icesi, Cali, Valle del Cauca 760031, Colombia.
| | - Aram J Panay
- Department of Chemical Sciences, Faculty of Natural Sciences, Universidad Icesi, Cali, Valle del Cauca 760031, Colombia.
| | - Guillermo Montoya
- Department of Pharmaceutical Sciences, Faculty of Natural Sciences, Universidad Icesi, Calle 18 # 122⁻135, Cali, Valle del Cauca 760031, Colombia.
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Ren HC, Zhang J, Liang H. Two new p-coumaroylated sesquiterpenoids from Pilea cavaleriei. J Asian Nat Prod Res 2018; 20:109-116. [PMID: 28480740 DOI: 10.1080/10286020.2017.1320990] [Citation(s) in RCA: 5] [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: 12/12/2016] [Accepted: 04/17/2017] [Indexed: 06/07/2023]
Abstract
A new p-coumaroylated santalane-type sesquiterpenoid, 8-p-coumaroyl-α-santalene (1), a new p-coumaroylated oplopanane-type sesquiterpenoid, 8-β-p-coumaroyl-oplopanone (2), and three known p-coumaroylated humulene-type sesquiterpenoids (3-5) were isolated from the ethanol extract of the whole herbs of Pilea cavaleriei. Their structures were elucidated based on the combination of 1D and 2D NMR and HRMS methods. Compound 2 was found to show anti-tuberculosis activity with MIC of 16 μg/ml.
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Affiliation(s)
- Heng-Chun Ren
- a State Key Laboratory of Natural and Biomimetic Drugs , School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
- b Beijing Increase Medicine Research Institute Co., Ltd. , Beijing 102209 , China
| | - Jun Zhang
- a State Key Laboratory of Natural and Biomimetic Drugs , School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
| | - Hong Liang
- a State Key Laboratory of Natural and Biomimetic Drugs , School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
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Mzid M, Ben Khedir S, Ben Salem M, Regaieg W, Rebai T. Antioxidant and antimicrobial activities of ethanol and aqueous extracts from Urtica urens. Pharm Biol 2017; 55:775-781. [PMID: 28084125 PMCID: PMC6130501 DOI: 10.1080/13880209.2016.1275025] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 03/15/2016] [Revised: 11/01/2016] [Accepted: 12/17/2016] [Indexed: 05/23/2023]
Abstract
CONTEXT Urtica urens L. (Urticaceae) is an important and commonly used plant for its medicinal and pharmacological properties. OBJECTIVE We analyzed the antioxidant and antimicrobial activities of the leaves of Urtica urens in ethanol (EtOH) and water (WA) solvents, employing standard analytical methods. MATERIALS AND METHODS Polyphenol, flavonoid and tannin content of Urtica urens leaves were determined, after their extraction, using EtOH (70%) and WA extracts as well as the antioxidant (DPPH, ABTS, β-carotene and FRAP) and the antibacterial (via the method of dilution tests) activities of EtOH and WA extracts. RESULTS The 70% EtOH of Urtica urens showed the highest values of total phenolic (31.41 mg GAE/g DW), flavonoids (6.81 mg quercetin/g DW), tannin (8.29 mg GAE/g DW) and TEAC (560 mmol Trolox/g DW), compared to the WA. The results of DPPH for EtOH (95.56%) were higher than that of WA (64.56%) at a concentration of 40 mg/L. The extracts displayed a FRAP 106.23 for EtOH and 30.55 μmol Fe(II)/g DW for WA. The results clearly indicated that EtOH was the strongest radical scavenger (IC50 = 245.65 ± 10.2 μg/mL). Ethanol was the most effective with minimum inhibitory concentration (MIC) < 250 μg/mL. WA has no antibacterial activity. DISCUSSION AND CONCLUSION The results indicate that leaves of Urtica urens could be used as natural antioxidant and antimicrobial agents.
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Affiliation(s)
- Massara Mzid
- Laboratory of Histology Embryology and Reproductive Biology, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| | - Sameh Ben Khedir
- Laboratory of Histology Embryology and Reproductive Biology, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| | - Maryem Ben Salem
- Laboratory of Pharmacology, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| | - Wafa Regaieg
- Laboratory of Pharmacology, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| | - Tarek Rebai
- Laboratory of Histology Embryology and Reproductive Biology, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
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Mzid M, Ben Khedir S, Bardaa S, Sahnoun Z, Rebai T. Chemical composition, phytochemical constituents, antioxidant and anti-inflammatory activities of Urtica urens L. leaves. Arch Physiol Biochem 2017; 123:93-104. [PMID: 27960552 DOI: 10.1080/13813455.2016.1255899] [Citation(s) in RCA: 9] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the chemical composition and antioxidant properties of Urtica urens L.(Uu) as well as its anti-inflammatory effect on carrageenan (CARR)-induced paw oedema in rats. METHODS The leaves were extracted using ethanol (EtOH) and water. The extracts were analysed for proximate composition and antioxidant activity using standard chemical analysis methods. RESULTS The proximate analysis showed that Uu leaves contained appreciable percentages of dry mass, ashes, carbohydrates, proteins, lipids, sugars, anthocyanin, carotenoid and fibre. Results showed that EtOH extract contained the highest amount of total phenolics, flavonoids, tannins, ortho-diphenols and flavonols. It decreased the paw oedema after CARR administration, and ameliorated the activities of catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), and the malondialdehyde (MDA). CONCLUSIONS Uu displayed a high potential as a natural source of minerals, phytochemicals and antioxidant properties. EtOH extract exhibited a significant inhibition against CARR-induced inflammation.
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Affiliation(s)
- Massara Mzid
- a Laboratory of Histology Embryology and Reproductive Biology, Faculty of Medicine of Sfax , University of Sfax , Sfax , Tunisia and
| | - Sameh Ben Khedir
- a Laboratory of Histology Embryology and Reproductive Biology, Faculty of Medicine of Sfax , University of Sfax , Sfax , Tunisia and
| | - Sana Bardaa
- b Laboratory of Pharmacology , Faculty of Medicine of Sfax, University of Sfax , Sfax , Tunisia
| | - Zouheir Sahnoun
- b Laboratory of Pharmacology , Faculty of Medicine of Sfax, University of Sfax , Sfax , Tunisia
| | - Tarek Rebai
- a Laboratory of Histology Embryology and Reproductive Biology, Faculty of Medicine of Sfax , University of Sfax , Sfax , Tunisia and
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Zhou Y, Li LY, Ren HC, Qin RD, Li Q, Tu PF, Dou GF, Zhang QY, Liang H. Chemical constituents from the whole plants of Pilea cavaleriei Levl subsp. cavaleriei. Fitoterapia 2017; 119:100-107. [PMID: 28408268 DOI: 10.1016/j.fitote.2017.04.010] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/05/2017] [Accepted: 04/08/2017] [Indexed: 11/20/2022]
Abstract
Three new sesquiterpene glycosides (1-3), three new glycerol glycosides (4-6), two new alkaloids (7-8), together with seven known compounds (9-15) all of which were isolated from the genus Pilea for the first time, were isolated from the whole plants of Pilea cavaleriei Levl subsp. cavaleriei. Their structures were determined by extensive spectroscopic techniques and chemical methods. The cytotoxic activity of the isolated compounds was evaluated against four cancer cell lines, and none of the tested compounds caused a significant reduction of the cell number.
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Affiliation(s)
- Yong Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China; State Key Laboratory of Drug Metabolism, Laboratory of Hematological Pharmacology, Beijing Institute of Transfusion Medicine, Beijing 100850, PR China
| | - Ling-Yu Li
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, PR China
| | - Heng-Chun Ren
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China
| | - Ri-Dong Qin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China
| | - Qin Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China
| | - Gui-Fang Dou
- State Key Laboratory of Drug Metabolism, Laboratory of Hematological Pharmacology, Beijing Institute of Transfusion Medicine, Beijing 100850, PR China
| | - Qing-Ying Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China.
| | - Hong Liang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China.
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Awounfack CF, Ateba SB, Zingue S, Mouchili OR, Njamen D. Safety evaluation (acute and sub-acute studies) of the aqueous extract of the leaves of Myrianthus arboreus P. Beauv. (Cecropiaceae) in Wistar rats. J Ethnopharmacol 2016; 194:169-178. [PMID: 27592311 DOI: 10.1016/j.jep.2016.08.052] [Citation(s) in RCA: 10] [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: 05/12/2016] [Revised: 08/19/2016] [Accepted: 08/30/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Myrianthus arboreus P. Beauv (Cecropiaceae) is a medicinal plant distributed in forests and damp places of tropical Africa. Its leaves are widely used as food and/or for the treatment of various ailments including dysmenorrhoea, female infertility, tumors and diarrhea. However, to the best of our knowledge, no safety assessment of this plant has been reported yet. AIM OF STUDY The present study aimed at evaluating the safety of the aqueous extract of leaves of Myrianthus arboreus (MAA) in Wistar rats through an acute and sub-acute oral administration. MATERIAL AND METHODS In acute oral toxicity, the test was performed according to the Organization for Economic Cooperation and Development (OECD) guidelines Nr. 423 (acute toxicity class method, ATC) with slight modifications. Female Wistar rats were orally treated with the aqueous extract of M. arboreus at the doses of 2000 and 5000mg/kg. In sub-acute toxicity study, using the OECD guidelines Nr. 407, the extract was administered by gavage at the doses of 20, 110 and 200mg/kg/day for 28 consecutive days. RESULTS A single oral administration of 2000 or 5000mg/kg of the extract induced neither mortality nor exterior signs of toxicity indicating a LD50 >5000mg/kg. In sub-acute study, the extract decreased triglycerides, total cholesterol/high density lipoproteins ratio and atherogenic index of plasma in both sexes at all tested doses. Alanine transaminase decreased in both sexes at 200mg/kg and serum creatinine levels decreased at all tested doses in females. Moreover, significant increases in ovarian and uterine wet weights, red blood cell count, hematocrit, mean corpuscular hemoglobin and hemoglobin were observed at 200mg/kg in females. In males, this extract decreased white blood cell count, lymphocytes and relative weight of seminal vesicles and ventral prostate at 200mg/kg. CONCLUSION The aqueous extract of Myrianthus arboreus leaves was non-toxic in acute administration and exhibited a relatively low toxicity potential on accessory sex organs in both sexes, and leukocytes in males following the repeated 28-days oral administration of the dose 200mg/kg.
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Affiliation(s)
- Charline Florence Awounfack
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
| | - Sylvin Benjamin Ateba
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
| | - Stéphane Zingue
- Laboratory of Physiology, Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon
| | - Oumarou Riepouo Mouchili
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
| | - Dieudonné Njamen
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon.
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Lynch AH, Kruger NJ, Hedges REM, McCullagh JSO. Variability in the carbon isotope composition of individual amino acids in plant proteins from different sources: 1 Leaves. Phytochemistry 2016; 125:27-34. [PMID: 26948983 DOI: 10.1016/j.phytochem.2016.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 09/18/2015] [Revised: 01/14/2016] [Accepted: 01/19/2016] [Indexed: 06/05/2023]
Abstract
The natural carbon isotope composition of individual amino acids from plant leaf proteins has been measured to establish potential sources of variability. The plant leaves studied, taken from a range of plant groups (forbs, trees, grasses, and freshwater aquatic plants), showed no significant influence of either season or environment (water and light availability) on their Δδ(13)C values. Plant groups did, however, differ in carbon isotope composition, although no consistent differences were identified at the species level. A discriminant analysis model was constructed which allowed leaves from (1) nettles, (2) Pooideae, (3) other Poales, (4) trees and (5) freshwater higher plants to be distinguished from each other on the basis of their natural abundance (13)C/(12)C ratios of individual amino acids. Differences in carbon isotope composition are known to be retained, to some extent, in the tissues of their consumers, and hence an understanding of compound-specific variation in (13)C/(12)C fractional abundance in plants has the potential to provide dietary insights of value in archaeological and ecological studies.
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Affiliation(s)
- Anthony H Lynch
- Laboratory for Archaeology and the History of Art, South Parks Road, University of Oxford, Oxford OX1 3QY, UK; Department of Chemistry, Mansfield Road, University of Oxford, Oxford OX1 3TA, UK
| | - Nicholas J Kruger
- Department of Plant Sciences, South Parks Road, University of Oxford, Oxford OX1 3RB, UK
| | - Robert E M Hedges
- Laboratory for Archaeology and the History of Art, South Parks Road, University of Oxford, Oxford OX1 3QY, UK
| | - James S O McCullagh
- Department of Chemistry, Mansfield Road, University of Oxford, Oxford OX1 3TA, UK.
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Jaradat NA, Damiri B, Abualhasan MN. Antioxidant evaluation for Urtica urens, Rumex cyprius and Borago officinalis edible wild plants in Palestine. Pak J Pharm Sci 2016; 29:325-330. [PMID: 27005499] [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: 06/05/2023]
Abstract
Natural plants products are one of the famous and commonly utilized remedies used in fighting diseases. This study was conducted to evaluate antioxidant activity of plants commonly used in Palestine (Urtica urens, Rumex cyprius and Borago officinalis). Free radical scavenging activity method was evaluated by using 2,2-diphenyl-1-picryl-hydrazyl-hydrate. The result show that the overall antioxidant activity of Rumex cyprius was the highest among the plants, followed by Urtica urens, and Borago officinalis; respectively. The (IC(50)) values of the methanolic extracts were 29.70±0.60μg/ml, 5.07±0.49μg/ml, 39.92± 0.52 μg/ml for Urtica urens, Rumex cyprius and Borago officinalis respectively. The results of this study revealed that these edible plants have high antioxidant activity and therefore they can provide natural sources of antioxidants and can be useful in preventing various diseases including cancer. These exhibited properties propose that such plants extracts can possibly be used as natural preservatives in the food and pharmaceutical industries and further characterization of Rumex cyprius constituents is needed.
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Affiliation(s)
- Nidal Amin Jaradat
- Pharmaceutical Chemistry and Technology Division, Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, State of Palestine
| | - Basma Damiri
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, State of Palestine
| | - Murad N Abualhasan
- Pharmaceutical Chemistry and Technology Division, Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, State of Palestine
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Mahlangeni NT, Moodley R, Jonnalagadda SB. The distribution of macronutrients, anti-nutrients and essential elements in nettles, Laportea peduncularis susp. peduncularis (River nettle) and Urtica dioica (Stinging nettle). J Environ Sci Health B 2015; 51:160-169. [PMID: 26669356 DOI: 10.1080/03601234.2015.1108806] [Citation(s) in RCA: 7] [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] [Indexed: 06/05/2023]
Abstract
Laportea peduncularis and Urtica dioica, which are popularly known as "Nettles" belong to the plant family Urticaceae and are consumed as green vegetables or used for their medicinal benefit in many countries in Africa, Asia, Europe and America. This study aimed at investigating the effect of cooking on the macronutrient, anti-nutrient and elemental composition of L. peduncularis and U. dioica leaves. The results showed a decrease in the crude fat, ash, carbohydrate and vitamin C content with cooking, but an increase in the vitamin E content. The anti-nutrient content (cyanides, phytates and saponins) increased slightly with cooking, while the oxalate content has decreased. The concentration of essential elements in cooked L. peduncularis leaves were found to be in decreasing order of Ca > Mg > Fe > Mn > Zn > Cu > Cr > Ni > Co. Both raw and cooked leaves of nettles were found to be rich sources of macronutrients and essential elements and may be used as alternatives to commercially available nutrient supplements. Statistical analyses (principal component analysis and correlations) indicated that certain elements taken up by these plants were from common sources. Both positive and negative relationships between nutrients, anti-nutrients and elements were observed in the plant leaves.
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Affiliation(s)
- Nomfundo T Mahlangeni
- a School of Chemistry and Physics, University of KwaZulu-Natal , Durban , South Africa
| | - Roshila Moodley
- a School of Chemistry and Physics, University of KwaZulu-Natal , Durban , South Africa
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Jing B, Lv C, Li SX, FU ML, Yin ZQ. [Anti-aging Effect of Urtica Polysaccharides in D-galactose Induced Aging Mice]. Zhong Yao Cai 2015; 38:2563-2567. [PMID: 27352539] [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: 06/06/2023]
Abstract
OBJECTIVE To investigate the anti-aging effect of polysaccharides from Urtica lobatifolia (Urtica polysaccharides) on subacute aging mice induced by D-galactose. METHODS 90 mice were randomly divided into six groups: normal group, aging mice model group, V(E) group [100 mg/(kg x d), ig], high level of Urtica polysaccharides group [200 mg/(kg x d), ig], medium level of Urtica polysaccharides group [100 mg/(kg x d), ig] and low level of Urtica polysaccharides group [50 mg/(kg x d), ig]. The normal group was injected saline [10 mL/(kg x d), sc], while the other groups were injected D-galactose [150 mg/(kg x d), sc]. After six weeks, all the animals were weighed. After eight arm maze experiment and swimming endurance experiment, serum, liver and brain was collected. The content of protein in serum,liver and brain was detected. Total antioxidant capacity (T-AOC), activities of total superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), and malondialdehyde (MDA) content in liver and brain samples were evaluated by kits. RESULTS Compared with the model group, Urtica polysaccharides groups mice had larger body weight, longer swimming time, shorter time out of the maze and fewer numbers of error, as well as higher protein content in serum, liver and brain. The capacity of T-AOC, the activities of SOD and GSH-Px of polysaccharides groups in brain and liver tissue were increased significantly, and the MDA content was decreased significantly. CONCLUSION Polysaccharides from Urtica lobatifolia has anti-aging effects on aging model mice, and the mechanism may be related to its antioxidant effect.
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Cao H, Ji Y, Li W, Liu Y, Fu R, Xiang M. Protective Effects of the Total Coumarin Fraction of Urtica dentata on Experimental Diabetic Nephropathy In Vitro and In Vivo. Planta Med 2015; 81:1353-1360. [PMID: 26366750 DOI: 10.1055/s-0035-1557866] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We previously reported that total coumarins, the major active components of Urtica dentata Hand, exhibited substantial protection against the development of autoimmune diabetes. Diabetic nephropathy is one of the most serious complications of diabetes and is closely correlated with end-stage renal disease. We used the rat glomerular mesangial cell line (HBZY-1) and streptozotocin-induced diabetic rats to investigate the potential protective effects and mechanisms of total coumarins on diabetic renal disease. Our data revealed that total coumarins inhibited high glucose-induced HBZY-1 cell proliferation and hypertrophy, and produced its effects through downregulating transforming growth factor-β1, connective tissue growth factor, and toll-like receptor 4 activation. Consistent with those findings, total coumarins administration in a diabetic model had anti-renal lesion effects in vivo. Total coumarins, at a dose of 50 or 100 mg/kg: 1) significantly increased body weight; 2) ameliorated morphological evidence of renal pathology; 3) decreased blood levels of glucose and urea nitrogen; 4) decreased albuminuria and serum creatinine; and 5) reduced protein and gene levels of transforming growth factor-β1, connective tissue growth factor, and toll-like receptor 4 in the kidneys. These results support the view that total coumarins treatment can be substantially renoprotective in DN.
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Affiliation(s)
- Hui Cao
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yachun Ji
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weijie Li
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Liu
- Synergy Innovation Center of Biological Peptide Antidiabetics of Hubei Province, School of Life Science, Wuchang University of Technology, Wuhan, China
| | - Rong Fu
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming Xiang
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Chen ZH, Zhang H, Tao SH, Luo Z, Zhong CQ, Guo LB. Norlignans from Pouzolzia zeylanica var. microphylla and their nitric oxide inhibitory activity. J Asian Nat Prod Res 2015; 17:959-966. [PMID: 26067593 DOI: 10.1080/10286020.2015.1048685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Five new compounds, pouzolignan F [4-hydroxy-3-(3,5-dihydroxyphenyl)-2-[bis(4-hydroxy-3-methoxyphenyl)methyl]butyl acetate] (1), pouzolignan G [4-hydroxy-3-(3,5-dihydroxyphenyl)-2-[(4-hydroxy-3,5-dimethoxyphenyl)(4-hydroxy-3-methoxyphenyl)methyl]butyl acetate] (2), pouzolignan H [1,4-dihydroxy-3-(3,5-dihydroxyphenyl)-2-[bis(4-hydroxy-3-methoxyphenyl)methyl]butane] (3), pouzolignan I [1,4-dihydroxy-3-(3,5-dihydroxyphenyl)-2-[(4-hydroxy-3,5-dime thoxyphenyl)-(4-hydroxy-3-methoxyphenyl)methyl]butane] (4), and pouzolignan J [1,4-dihydroxy-3-(3,5-dihydroxyphenyl) -2-[(3,4,5-trimethoxyphenyl)(4-hydroxy-3-methoxyphenyl)methyl]butane] (5), along with two known compounds, indolyl-3-carboxylic acid (6) and uracil (7), were isolated from the aerial parts of Pouzolzia zeylanica (L.) Benn. var. microphylla (Wedd.) W.T.Wang. The structures of these compounds were characterized based on spectroscopic methods, including IR, NMR ((1)H-(1)H COSY, HSQC, HMBC, and NOESY), and HR-ESI/TOF-MS experiments. All the new norlignans were assayed for inhibitory activity against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in mouse peritoneal macrophages.
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Affiliation(s)
- Zhuo-Han Chen
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Hui Zhang
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Shu-Hong Tao
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Zhao Luo
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Chu-Qian Zhong
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Li-Bing Guo
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
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Martkoplishvili I, Kvavadze E. Some popular medicinal plants and diseases of the Upper Palaeolithic in Western Georgia. J Ethnopharmacol 2015; 166:42-52. [PMID: 25769538 DOI: 10.1016/j.jep.2015.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 07/28/2014] [Revised: 03/02/2015] [Accepted: 03/02/2015] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Palynological studies of cultural layers of cave sediments have been used in order to better understand traditional practices. The Upper Palaeolithic in Georgia (36,000-11,000 cal. BP) provides a rich source of such material. However, up to day from such sediments the identification of medicinal plants has hardly been achieved. Large quantities of pollen most notably from entomophilous taxa in fossil spectra can serve as a tool to identify traditionally important species. As these plants are used in modern popular medicine on the territory of Georgia (like Achillea millefolium L., Artemisia annua L., Artemisia absinthium L., Centaurea jacea L., Urtica dioica L.) can be served as an indirect evidence for their medicinal relevance from the Palaeolithic Period up to days. Their modern uses may point that the main diseases during the Upper Palaeolithic were the same as today. MATERIALS AND METHODS The Upper Palaeolithic sediments were studied palynologically come from four caves: Dzudzuana, Satsurblia, Kotias Klde and Bondi. Modern sediments were investigated from 6 caves. Fossil and modern samples were taken according to the standard procedure in palynology. The laboratory treatment was carried out as follows: first, 50g of the sample was boiled in 10% KOH. At the second stage, centrifuging of the material in cadmium liquid was performed. At the final stage, acetolysis treatment was used. RESULTS Pollen of A. absinthium L. (Asteraceae), A. annua L. (Asteraceae), A. millefolium L. (Asteraceae), C. jacea L. (Asteraceae), and U. dioica L. (Urticaceae) are identified to species level. This species are not edible and are popular in present-day folk medicine. In the Upper Palaeolithic layers, significant amounts of studies species pollen were recorded in the cave, likely due to their flowering branches being brought in by humans for use. Detailed consideration of the pharmacological characteristics of the examined species showed that almost all of them have anti-inflammatory, antibacterial, antimicrobial and antipyretic activity. CONCLUSION The fossil pollen complex of medicinal herbs, dominated by A. millefolium and Artemisia (A. annua and A. absinthium), suggests that the ancient population living in the studied caves could have been prone to malaria, rheumatism and gastrointestinal diseases. In the Upper Palaeolithic, the population inhabiting cave sites might have suffered from gout and callouses.
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Affiliation(s)
- Inga Martkoplishvili
- Ilia State University, 3/5 Cholokashvili Street, Tbilisi 0162, Georgia; Institute of Palaeobiology of Georgian National Museum, 3, Purtseladze Street, Tbilisi 0105, Georgia.
| | - Eliso Kvavadze
- Institute of Palaeobiology of Georgian National Museum, 3, Purtseladze Street, Tbilisi 0105, Georgia.
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Gan XH, Liang ZY, Jiang JZ, Zhou X, Zhao C. [HPLC Fingerprint Study and Quantitative Determination of Index Components of Pilea aquarum]. Zhong Yao Cai 2015; 38:275-278. [PMID: 26415400] [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
OBJECTIVE To establish an HPLC fingerprint and a quantitative determination method for determination of index components of Pilea aquarum. METHODS The HPLC fingerprint of Pilea aquarum were determined on an Agilent Zorbax SB-C18 column (250 mm x 4.6 mm, 5 µm), eluted with mobile phase containing of acetonitrile-0.2% acetic acid in a gradient mode. The temperature of column was 30 °C. The flow rate was 0.8 mL/min and the detection wavelength was set at 330 nm. The chromatograms of 24 batches of Pilea aquarum were compared by the software of Similarity Evaluation System for Chromatographic Fingerprint of Traditional Chinese Medicine (version 2004 A). The contents of luteoloside and cosmosiin were also determined simultaneously. RESULTS The HPLC fingerprint of Pilea aquarum had been established. There were ten common peaks,two chromatographic peaks of which were identified by reference substances. The samples of Pilea aquarum from different habitats can be distinguished from their fingerprints, the contents of luteoloside and cosmosiin varied greatly. CONCLUSION This method has desirable precision, stability, repeatability, and can be applied for identification and quality control of Pilea aquarum.
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Xiaocheng C, Shan H, Yuxing L, Lizhen Y, Linmao D, Shoujun Y, Qinglin Z. Inhibition of spontaneous canine benign prostatic hyperplasia by an Urtica fissa polysaccharide fraction. Planta Med 2015; 81:10-4. [PMID: 25473922 DOI: 10.1055/s-0034-1383364] [Citation(s) in RCA: 3] [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] [Indexed: 05/18/2023]
Abstract
In this study, we investigated the inhibition of spontaneous canine benign prostatic hyperplasia by a crude polysaccharide fraction extracted from Urtica fissa roots and stems. After oral administration of U. fissa polysaccharide fraction for 3 months, the dog prostatic volume reduced significantly when compared to that before treatment using CT examination. The high-dosage U. fissa polysaccharide fraction (120 mg/kg body weight/day) and finasteride (0.5 mg/kg body weight/day) treatments showed both almost 30 % reduction of the initial prostatic volume. At the end of the administration of U. fissa polysaccharide fraction, the prostates were excised, and the volumes were measured by water displacement. The prostatic volume showed significant decrease by 11 %, 15 %, and 21 % for the 30, 60, and 120 mg/kg/day U. fissa polysaccharide fraction treatment groups, respectively, compared to the control group. Histological observation found that U. fissa polysaccharide fraction inhibited the dog prostatic epithelial cells proliferation and enlarged glandular lumen diameter. The crude polysaccharide fraction of U. fissa is a possible new candidate for the treatment of benign prostatic hyperplasia.
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Affiliation(s)
| | - He Shan
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Lu Yuxing
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Yuan Lizhen
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Ding Linmao
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Yuan Shoujun
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Zhang Qinglin
- Beijing Institute of Radiation Medicine, Beijing, China
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Zhou Y, Ren HC, Qin RD, Zhang QY, Liang H. New phenolic glycosides from Pilea cavaleriei. J Asian Nat Prod Res 2014; 16:565-573. [PMID: 24911100 DOI: 10.1080/10286020.2014.922552] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 01/27/2014] [Accepted: 05/06/2014] [Indexed: 06/03/2023]
Abstract
Five new phenolic glycosides, 2-hydroxy-(2'E)-prenyl benzoate-2,4'-di-O-β-D-glucopyranoside (1), 2-hydroxy-(2'E)-prenyl benzoate-2-O-α-L-arabinopyranosyl-(1 → 6)-β-D-glucopyranoside (2), 4-methylphenol-1-O-α-L-rhamnopyranosyl-(1 → 6)-β-D-glucopyranoside (3), 4-methylphenol-1-O-α-L-arabinopyranosyl-(1 → 6)-β-D-glucopyranoside (4), and 3,5-dimethoxyphenol-1-O-β-D-apiofuranosyl-(1 → 2)-β-D-glucopyranoside (5), together with six known glycosides (6-11), were isolated from the n-BuOH fraction of the EtOH extract of Pilea cavaleriei Levl subsp. cavaleriei. Their structures were elucidated by extensive spectroscopic analysis, including 1D and 2D NMR spectroscopy as well as HR-ESI-MS, and chemical evidences. All these compounds were isolated from the genus Pilea for the first time.
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Affiliation(s)
- Yong Zhou
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
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Abstract
CONTEXT The genus Urtica has been known since ancient times. It has known to be useful for the treatment of different human ailments. OBJECTIVE The present work evaluated the neuropharmacological effects of a hydroalcoholic extract of Urtica circularis (Hicken) Sorarú (Urticaceae). materials and method: The effect on central nervous system of U. circularis hydroalcoholic extract (from leaves and stems) administered by the intraperitoneal route in mice was evaluated by several tests: Pentobarbital- and midazolam-induced hypnosis, open field, hole board, elevated plus-maze and forced swimming. Phytochemical analysis was performed by high-performance liquid chromatography. RESULTS A total of 300 mg/kg i.p. of the extract produced a significant prolongation of pentobarbital- (40 mg/kg i.p.; 60.1 min versus 25.4 min) and midazolam- (50 mg/kg i.v.; 53.4 min versus 25.1 min) induced sleeping time. The extract's administration caused a marked reduction of the head-dipping response (DE50: 373 mg/kg i.p.) in the hole-board test. Urtica circularis extract (DE50: 46 mg/kg i.p.) reduced the spontaneous locomotor activity in the open field test. Flumazenil and atropine significantly antagonized the extract's effect on the locomotor activity. No motor coordination disturbance was observed in the rota rod test at any doses. In the forced swimming test, the extract did not produce any change in the immobility time and it had no significant effects in elevated plus maze test. The phytochemical analysis revealed the presence of chlorogenic acid, vanillic acid, caffeic acid, vicenin-2, p-cumaric acid, ferulic acid, vitexin and isovitexin. CONCLUSION This study revealed that U. circularis hydroalcoholic extract possesses sedative activity, facilitating GABAergic and cholinergic transmission.
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Affiliation(s)
- María Laura Anzoise
- Cátedra de Farmacología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
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Zhang SS, Zhou H, Li LL, Lu JL, Yin GX, Xiang M. [Preparation technology of total coumarins from Laportea bulbifera]. Zhong Yao Cai 2013; 36:636-639. [PMID: 24134012] [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 investigate the preparation process of total coumarins from Laportea bulbifera. METHODS The optimum condition for the extraction of total coumarins was studied using the orthogonal test, and the extracts was purled with different kinds of macroporous resins. The content of total coumarins was detected by ultraviolet spectrophotometry. RESULTS The optimum extraction process was as follows: three-time circumfluence with 4 times volume of 75% ethanol for 1.5 h each time. HPD300 macroporous resin was the optimum one for the separation and purification of total coumarins. The extraction condition was loading 30 mL of 0.4 g/mL the crude drug, flowing at 2BV/h, then edulcorating with 4 times volume of distilled water and eluting with the same volume of 75% ethanol. The yield rate was more than 52%. CONCLUSION This method is suitable for the preparation of total coumarins in Laportea bulbifera, and the process is stable and repeatable.
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Affiliation(s)
- Sha-Sha Zhang
- School of Pharmacy,Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Abo-elmatty DM, Essawy SS, Badr JM, Sterner O. Antioxidant and anti-inflammatory effects of Urtica pilulifera extracts in type 2 diabetic rats. J Ethnopharmacol 2013; 145:269-277. [PMID: 23159471 DOI: 10.1016/j.jep.2012.11.002] [Citation(s) in RCA: 15] [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] [Received: 05/28/2012] [Revised: 10/27/2012] [Accepted: 11/02/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE "Urtica pilulifera has been traditionally used in Egyptian system as an herbal remedy to be a diuretic, antiasthmatic, anti-inflammatory, hypoglycemic, hemostatic, antidandruff and astringent" AIM OF THE STUDY To evaluate the potential effects of ethyl acetate (EA), chloroform (CHLOR) and hexane (HEXA) extracts of Urtica piluliferaas oral anti-diabetic agents as well as to evaluate their possible anti-oxidant and anti-inflammatory effects in type 2 diabetic rat model. MATERIAL AND METHODS Type 2 diabetes was induced by a high fat diet and low dose streptozotocin (STZ). Diabetic adult male albino rats were allocated into groups and treated according to the following schedule; Pioglitazone HCL (PIO), EA, CHLOR and HEXA extracts of Urtica pilulifera at two doses of 250 and 500 mg/kg were used. In addition, a normal control group and a diabetic control one were used for comparison. Blood glucose, insulin resistance, antioxidant enzymes, 8-hydroxy-2-deoxyguanosine (8-OHdG) as well as C-reactive protein and tumor necrosis factor-α levels were evaluated. RESULTS EA and CHLOR extracts of Urtica pilulifera exhibited a significant hypoglycemia associated with antioxidant and anti-inflammatory effects in diabetic rats; however, HEXA extract showed no beneficial effect. These activities are responsible, at least partly, for improvements that have been seen in hyperglycemia and insulin resistance of diabetic rats. CONCLUSION Our results encourage the traditional use of Urtica pilulifera extract as an antioxidant and anti-inflammatory agent as an additional therapy of diabetes.
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Affiliation(s)
- Dina M Abo-elmatty
- Department of Pharmacology, Faculty of Medicine, Suez Canal University, Ismailia, 41522, Egypt
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Lu JL, Li WJ, Hou WR, Lan Y, Zhou H, Yin LJ, Zeng Y, Xiang M. [Study on effect of total coumarins from Urtica dentata on dextran sulfate sodium-induced colitis in mice]. Zhongguo Zhong Yao Za Zhi 2012; 37:3316-3320. [PMID: 23397737] [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 study the effect of total coumarins (TC) from Urtica dentata on dextran sulfate sodium (DSS)-induced colitis in mice. METHOD The colitis model was established by administering DSS. Having been treated with TC, their body weight was determined. Concentrations of IL-6, IL-10, TGF-beta1 and IFN-gamma were monitored by ELISA. Colon samples were collected for the histopathological examination. Western blot was used to detect TLR4 and NF-kappaB protein expression in colonic tissues. RESULT TCs from U. dentata effectively controlled the body weight loss of mice with colitis, down-regulated the concentration of IL-6 and IFN-gamma and increased the suppressive cytokines IL-10 and TGF-beta1 in the serum. Additionally, TC alleviated the mucosal damage and decreased the expressions of TLR4 and NF-kappaB in colonic tissues. CONCLUSION TCs from U. dentata shows the anti-inflammatory effect on colitis in mice by reducing the expressions of TLR4 and NF-kappaB in colonic tissues and regulating pro-and anti-inflammatory cytokines.
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Affiliation(s)
- Jing-Li Lu
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Wuhan 430030, China
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Fu M, Niu YY, Yu J, Kong QT. [Study on the chemical constituents in Pouzolzia zeylanica]. Zhong Yao Cai 2012; 35:1778-1781. [PMID: 23627087] [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 study the chemical constituents of Pouzolzia zeylanica. METHODS Many chromatography means were used in separation and purification, and the structures of all compounds were identified by the means of spectroscopic analysis and physicochemical properties. RESULTS 14 compounds were elucidated as: beta-sitosterol (1), daucosterol (2), oleanolic acid (3), epicatechin (4), alpha-amyrin (5), eugenyl-beta-rutinoside (6), 2alpha, 3alpha, 19alpha-trihydroxyurs-12-en-28-oic (7), scopolin (8), scutellarein-7-O-alpha-L-rhamnoside (9), scopoletin (10), quercetin (11), quercetin-3-O-beta-D-glucoside (12), apigenin (13), 2alpha-hydroxyursolic acid (14). CONCLUSION All compounds are obtained from this plant for the first time.
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Affiliation(s)
- Ming Fu
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, Huaihua University, Huaihua, China.
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Ren HC, Qin RD, Zhang QY, Cheng W, Liang H. [Chemical constituents of Pilea cavaleriei subsp. cavaleriei]. Zhongguo Zhong Yao Za Zhi 2012; 37:2581-2584. [PMID: 23236755] [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 investigate chemical constituents from folk herb Pilea cavaleriei subsp. cavaleriei. METHOD The compounds were separated and purified by silica gel, Sephadex LH-20 and the like. The structures were identified by spectral methods such as (1)H, (13)C-NMR and MS. RESULT Seventeen compounds were isolated and identified as benzoic acid (1), 4-hydroxy benzalde-hyde (2), coumaric acid(3), protocatechuic acid (4), gallic acid (5), 4-hydroxy benzoic acid (6), 3-indole carboxaldehyde (7), 3-indole carbo-xylicacid (8), 4-methyl-(1,2,3) -triazole(9), uracil(10), nicotinamide (11), (2S,E)-N-[2-hydroxy-2-(4-hydroxy phenyl) ethyl] ferulamide (12), (+) -dehydrovomifoliol (13), hentriantane (14), beta-sitosterol (15), palmitic acid (16), daucossterol (17) , respectively. CONCLUSION All compounds were obtained from the genus for the first time.
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Affiliation(s)
- Heng-chun Ren
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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Abstract
A new triterpenoid, 11α,12α-epoxy-3β-hydroxy-24-nor-olean-4(23)-en-28,13β-olide (1), and a new glycoside, benzyl 2-O-β-d-apiofuranosyl-(1 → 2)-β-d-glucopyranosyl benzoate (2), together with eight known triterpenoids (3-10), were isolated from Pilea cavaleriei subsp. cavaleriei. Their structures were established on the basis of spectroscopic analysis including HR-ESI-MS, 1D NMR, and 2D NMR techniques. All compounds showed no anti-hepatitis C virus activity.
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Affiliation(s)
- Heng-Chun Ren
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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Chi XF, Jiao XL, Ji T, Dong Q, Xiao YC, Hu FZ. [Determination of trace element contents in Urtica laetevirens Maxim. reaped in different months by ICP-MS]. Guang Pu Xue Yu Guang Pu Fen Xi 2012; 32:1381-1383. [PMID: 22827094] [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
The contents of twenty kinds of trace elements, Al, Ba, Ca, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S and Zn, were determined by ICP-MS with microwave digestion in Urtica laetevirens Maxim. The recovery (n=7) is 95.4%-101.2%, and the RSD (n=7) is 1.2%-5.3%. The contents of K, P, S, Ca and Na in the samples were abundant while Fe, Mg, Mn and Zn were less abundant. The contents of Al, Cr and Pb which were harmful to human were kept at low level. The contents of trace elements in Urtica laetevirens Maxim. also showed obvious seasonal dynamics. This result provides some theoretical basis for the study of internal relations between trace elements in Urtica laetevirens Maxim. and its efficacy. It's also useful for better development and utilization of the resource.
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Affiliation(s)
- Xiao-feng Chi
- Northwest Institute of Plateau Biology of Chinese Academy of Sciences, Xining 810008, China.
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Lei J, Xiao Y, Wang W, Xi Z, Liu M, Ran J, Huang J. [Study on flavonoid chemical constituents contained in Memorialis hirta]. Zhongguo Zhong Yao Za Zhi 2012; 37:478-482. [PMID: 22667148] [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 study the chemical constituents of Memorialis hirta. METHOD Compounds were isolated and purified by multiple methods, and their structures were identified based on physicochemical property and spectrum data. RESULT 12 compounds were isolated from ethyl acetate from 95% ethanol extracts of M. hirta, they were isorhamnetin (1), kaempferol (2), quercetin (3), isorhamnetin-3-O-alpha-L-rhamnopyranoside (4), kaempferol-3-O-alpha-L-rhamnopyranoside (5), isorhamnetin-3-O-beta-D-glucopyranoside (6), kaempferol-3-O-beta-D-glucopyranoside (7), quercetin-3-O-alpha-L-rhamnopyranoside (8), quercetin-3-O-beta-D-glucopyranoside (9), isorhamnetin-3-O-rutinoside (10), kaempferol-3-O-rutinoside (11) and quercetin-3-O-rutinoside (12), respectively. CONCLUSION All compounds were obtained from the genus Memorialis for the first time.
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Affiliation(s)
- Jun Lei
- School of Pharmacy, Sichuan University, Chengdu 610041, China
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Abstract
A polysaccharide, isolated and purified from the aqueous extract of nettle plant Urtica fissa, was found to consist of D-glucose and D-arabinose. Molecular weight was determined to be Mn 4140. The NMR experiments (¹H, ¹³C, ¹H--¹H COSY, TOCSY, HSQC, NOESY, and HMBC) revealed the structure as the following repeating unit: -->6)-α-D-Glcp-(1-->6)-α-D-Glcp-(1-->6)-β-D-Glcp--(1-->5)-β-D-Araf-(1-->3)-β-D-Glcp-(1-->
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Affiliation(s)
- Yan-Liang Wang
- Beijing Institute of Radiation Medicine, Beijing 100850, China
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Paul P, Bansal P, Nayak PG, Pannakal ST, Priyadarsini KI, Unnikrishnan MK. Polyphenolic fraction of Pilea microphylla (L.) protects Chinese hamster lung fibroblasts against γ-radiation-induced cytotoxicity and genotoxicity. Environ Toxicol Pharmacol 2012; 33:107-119. [PMID: 22196050 DOI: 10.1016/j.etap.2011.09.007] [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] [Received: 05/11/2011] [Revised: 09/15/2011] [Accepted: 09/16/2011] [Indexed: 05/31/2023]
Abstract
Present study was designed to compare cytoprotective and antigenotoxic activity of the polyphenolic fraction of Pilea microphylla (PM1) with that of its active polyphenolic constituents against γ-radiation in V79 cells. PM1 was standardized with respect to the polyphenols present by RP-HPLC. It was evaluated for its free radical scavenging potential using Fenton reaction-induced DNA damage and lipid peroxidation. Further, PM1 was subjected against γ-radiation-induced cytotoxicity and genotoxicity in V79 cells. PM1 significantly reduced free radical-mediated calf thymus DNA damage and lipid peroxidation. Among the concentrations tested (12.5, 25 and 50 μg/ml) for radioprotection, PM1 at 25 μg/ml exhibited maximum protection. Further, when compared with constituent polyphenols viz., rutin, quercetin and chlorogenic acid (concentrations equivalent to that present in PM1-25 μg/ml), a combination of polyphenols was found most effective in preventing γ-radiation-induced cytotoxicity and genotoxicity. To conclude, radioprotection is possibly a synergistic effect of the phytochemicals present in the herbal extract, rather than any single component.
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Affiliation(s)
- Piya Paul
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, Karnataka, India
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Ansarullah, Bharucha B, Dwivedi M, Laddha NC, Begum R, Hardikar AA, Ramachandran AV. Antioxidant rich flavonoids from Oreocnide integrifolia enhance glucose uptake and insulin secretion and protects pancreatic β-cells from streptozotocin insult. BMC Complement Altern Med 2011; 11:126. [PMID: 22169757 PMCID: PMC3267669 DOI: 10.1186/1472-6882-11-126] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Accepted: 12/12/2011] [Indexed: 02/07/2023]
Abstract
BACKGROUND Insulin deficiency is the prime basis of all diabetic manifestations and agents that can bring about insulin secretion would be of pivotal significance for cure of diabetes. To test this hypothesis, we carried out bioactivity guided fractionation of Oreocnide integrifolia (Urticaceae); a folklore plant consumed for ameliorating diabetic symptoms using experimental models. METHODS We carried out bioassay guided fractionation using RINmF and C2C12 cell line for glucose stimulated insulin secretion (GSIS) and glucose uptake potential of fractions. Further, the bioactive fraction was challenged for its GSIS in cultured mouse islets with basal (4.5 mM) and stimulated (16.7 mM) levels of glucose concentrations. The Flavonoid rich fraction (FRF) was exposed to 2 mM streptozotocin stress and the anti-ROS/RNS potential was evaluated. Additionally, the bioactive fraction was assessed for its antidiabetic and anti-apoptotic property in-vivo using multidose streptozotocin induced diabetes in BALB/c mice. RESULTS The results suggested FRF to be the most active fraction as assessed by GSIS in RINm5F cells and its ability for glucose uptake in C2C12 cells. FRF displayed significant potential in terms of increasing intracellular calcium and cAMP levels even in presence of a phosphodiesterase inhibitor, IBMX in cultured pancreatic islets. FRF depicted a dose-dependent reversal of all the cytotoxic manifestations except peroxynitrite and NO formation when subjected in-vitro along with STZ. Further scrutinization of FRF for its in-vivo antidiabetic property demonstrated improved glycemic indices and decreased pancreatic β-cell apoptosis. CONCLUSIONS Overall, the flavonoid mixture has shown to have significant insulin secretogogue, insulinomimetic and cytoprotective effects and can be evaluated for clinical trials as a therapeutant in the management of diabetic manifestations.
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Affiliation(s)
- Ansarullah
- Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Bhavna Bharucha
- Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Mitesh Dwivedi
- Department of Biochemistry, Faculty of Science, The M. S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Naresh C Laddha
- Department of Biochemistry, Faculty of Science, The M. S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Rasheedunnisa Begum
- Department of Biochemistry, Faculty of Science, The M. S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Anandwardhan A Hardikar
- Diabetes and Pancreas Biology group, The O'Brien Institute, St.Vincent's Hospital and The University of Melbourne, Melbourne, VIC 3065, Australia
| | - AV Ramachandran
- Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India
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Feng BM, Qin HH, Wang HG, Shi LY, Yu DY, Ji BQ, Zhao Q, Wang YQ. Three new secolignan glycosides from Urtica fissa E. Pritz. J Nat Med 2011; 66:562-5. [PMID: 22124934 DOI: 10.1007/s11418-011-0615-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Accepted: 11/11/2011] [Indexed: 11/26/2022]
Abstract
Three new secolignan glycosides {3,4-trans-4-[bis(3,4-dimethoxyphenyl)methyl]-2-oxotetrahydrafuran-3-yl}methyl-O-β-glucopyranoside (1), {3,4-trans-4-[(3-methoxy-4-hydroxyphenyl)(3,4-dimethoxyphenyl)methyl]-2-oxotetrahydrafuran-3-yl}methyl-O-β-glucopyranoside (2) and {3,4-cis-4-[(3-methoxy-4-hydroxyphenyl)(3,4-dimethoxyphenyl)methyl]-2-oxotetrahydrafuran-3-yl}methyl-O-β-glucopyranoside (3) were isolated from the roots of Urtica fissa E. Pritz. Their structures were identified by spectral methods including 1D NMR, 2D NMR and HR-EI-MS.
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Affiliation(s)
- Bao-min Feng
- School of Life Science and Biotechnology, Dalian University, Dalian 116622, China.
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Luo X, Li LL, Zhang SS, Lu JL, Zeng Y, Zhang HY, Xiang M. Therapeutic effects of total coumarins from Urtica dentata Hand on collagen-induced arthritis in Balb/c mice. J Ethnopharmacol 2011; 138:523-9. [PMID: 22001857 DOI: 10.1016/j.jep.2011.09.050] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Revised: 09/14/2011] [Accepted: 09/14/2011] [Indexed: 05/24/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Urtica dentata Hand (UDH), the root of Laportea bulbifera (Sieb. et. Zucc.) Wedd, has long been utilized in traditional Chinese medicine for the treatment of rheumatoid arthritis and some other autoimmune diseases. Coumarins are the main active principles contributing to UDH's efficacy, but the mechanisms have not been fully clarified. AIM OF STUDY To explore effects of total coumarins (TC) isolated from UDH on the development of type II collagen (CII)-induced arthritis (CIA) in Balb/c mice. MATERIALS AND METHODS Arthritis was induced in Balb/c mice by immunization with an emulsion of 200mg CII and complete Freund's adjuvant (CFA). The CIA mice were then given with a suspension of TC or saline by intragastric (i.g.) administration every other day. The incidence and severity of disease and histopathology of inflammation were assessed. Inflammatory response was determined by measuring the levels of different inflammation mediators in serum. The effect of TC on differentiation of CD4(+)CD25(+) Foxp3(+)Treg cells was examined by flow cytometry. The phenotype of bone marrow-derived dendritic cells (DCs), T-bet mRNA level and IL-12p70 secretion by DCs were also detected. RESULTS Pharmacologically, treatment with TC for type II collagen induced arthritis in mice through oral administration displayed significant and dose-dependent drop of clinical arthritis score and paw swelling, compared with the untreated CIA mice. Pathologic changes showed that TC protected tissues against bone destruction, whereas an almost complete destruction occurred in the CIA model group. The protective status was associated with a substantial decrease in the production of IFN-γ and IL-2, an increase of IL-10 and TGF-β and suppressive expression of T-bet in DCs. TC also induced the generation of CD4(+)CD25(+) Treg cells with a Treg phenotype Foxp3. TC-treated DCs were characterized as low expression of MHC class II and CD86 molecules, as well as a reduction of IL-12p70. CONCLUSIONS Our data suggest that TC provides substantial therapeutic protection against CIA by eliciting immune tolerance and it would be a valuable candidate for further investigation as a new anti-arthritic agent.
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Affiliation(s)
- Xiang Luo
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resources Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Marrassini C, Davicino R, Acevedo C, Anesini C, Gorzalczany S, Ferraro G. Vicenin-2, a potential anti-inflammatory constituent of Urtica circularis. J Nat Prod 2011; 74:1503-1507. [PMID: 21608987 DOI: 10.1021/np100937e] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Vicenin-2 (1), a flavonoid glycoside, was isolated and identified from an ethanol extract of the aerial parts of Urtica circularis. This crude extract was found to possess significant anti-inflammatory activity in a carrageenan-induced rat hind paw edema model (41.5% inhibition at a dose of 300 mg/kg; ip). The effects of 1 on several inflammatory mediators were investigated. In cultured murine macrophages, this compound modified LPS-induced total nitrite and TNF-α production, in addition to the LPS-induced translocation of the nuclear factor NF-κB.
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Affiliation(s)
- Carla Marrassini
- Cátedra de Farmacognosia-IQUIMEFA CONICET, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, C1113AAD Buenos Aires, Argentina.
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Gorzalczany S, Marrassini C, Miño J, Acevedo C, Ferraro G. Antinociceptive activity of ethanolic extract and isolated compounds of Urtica circularis. J Ethnopharmacol 2011; 134:733-738. [PMID: 21277970 DOI: 10.1016/j.jep.2011.01.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 01/14/2011] [Accepted: 01/19/2011] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Urtica circularis (Hicken) Sorarú is a medicinal plant commonly used in traditional medicine to relieve pain in inflammatory processes. AIM OF THE STUDY In the present study, the in vivo antinociceptive effect of Urtica circularis ethanolic extract and its isolated compounds has been investigated. MATERIALS AND METHODS Antinociceptive activity was evaluated through writhing, formalin and hot plate tests in mice. The phytochemical analysis was performed. RESULTS The extract produced significant inhibition on nociception induced by acetic acid (ED50: 72.2mg/kg, i.p.) and formalin (ED50: 15.8 mg/kg, i.p.) administered intraperitoneally and also orally. Atropine diminished the activity of the extract in the acetic acid test. In this model, at dose of 10mg/kg i.p., vitexin was the most active of the isolated compounds (inhibition of 91%), and chlorogenic acid, caffeic acid and vicenin-2 (6,8-di-C-glucosyl apigenin) produced an inhibition of 72%, 41% and 41%, respectively, whereas apigenin did not show any activity. CONCLUSIONS These results suggest that Urtica circularis extract produced antinociception possibly related to the presence of vitexin, chlorogenic, caffeic acid and vicenin-2. The activation of cholinergic systems seems to be involved in the mechanism of antinociception of the extract.
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Affiliation(s)
- S Gorzalczany
- Cátedra de Farmacología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, C1113AAD Buenos Aires, Argentina.
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Zhu Z, Ma L, Zhu HY, Yang XS, Hao XJ. [Studies on the chemical constituents of Laportea bulbifera]. Zhong Yao Cai 2011; 34:223-225. [PMID: 21823478] [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 Laportea bulbifera. METHODS 70% EtOH was used for constituent extraction, silica gel column chromatography for constituent seperation, physical and chemical properties together with spectroscopic methods for chemical structure identification. RESULTS six compounds were obtained from root of L. bulbifera. Their chemical structures were elucidated as p3-sitosterol(1) , P-daucosterol (2), 2,2'-oxy-bis(1-phenylethanol (3), 1-(2-phenylcarbonyloxy acetyl) benzene (4) , methyl linoleate(5),1,4-diphenyl-1,4-butanedione(6). CONCLUSION All compounds are isolated from L. bulbifera and among compounds 3 and 4 are reported as natural products for the first time.
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Affiliation(s)
- Zhu Zhu
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550002, China
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Salazar MO, Micheloni O, Escalante AM, Furlan RLE. Discovery of a β-glucosidase inhibitor from a chemically engineered extract prepared through sulfonylation. Mol Divers 2011; 15:713-9. [PMID: 21207143 DOI: 10.1007/s11030-010-9301-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Accepted: 12/16/2010] [Indexed: 11/26/2022]
Abstract
A semisynthetic β-glucosidase inhibitor was identified from a chemically engineered extract prepared by reaction with benzenesulfonyl chloride. The structure includes a natural histamine portion and a benzenesulfonyl portion introduced during the diversification step.
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Affiliation(s)
- Mario O Salazar
- Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
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Abstract
A novel biscoumarin, 6,6',7,7'-tetramethoxyl-8,8'-biscoumarin (1), was isolated from the ethyl acetate extract of Urtica dentata Hand, together with five known compounds named as 7,7'-dihydroxy-6,6'-dimethoxy-8,8'-biscoumarin (2), 7,7'-dimethoxy-6,6'-biscoumarin (3), scoparone (4), vanillic acid (5), and daucosterol (6). Structures of the isolated compounds were elucidated on the basis of spectroscopic analysis including 2D NMR experiments. Compounds 1 and 2 were confirmed to be a rare carbon-carbon linked symmetrical biscoumarin. Compounds 1-4, especially 1 (IC(50) = 8.18 x 10(- 5) mol/l), showed potent immunosuppressive activities as determined by the Cell Counting Kit-8 assay for lymphocyte proliferation. Also, in the FACS analysis, 1 (IC(50) = 5.19 x 10(- 4) mol/l) promoted the differentiation of CD4(+)CD25(+)Foxp3(+) T regulatory cells distinctly compared to the normal control. Thus, 1 possessed specific immunosuppressive property by eliciting T regulatory cells, which may provide a potential treatment strategy for autoimmune diseases.
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Affiliation(s)
- Wen-Rui Hou
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Li Y, Wang YL, Li L, Liu L, Lu YX, Cheng XC, Zhang QL. Structural characterization of polysaccharides from the roots of Urtica fissa. J Asian Nat Prod Res 2009; 11:951-957. [PMID: 20183259 DOI: 10.1080/10286020903305896] [Citation(s) in RCA: 5] [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] [Indexed: 05/28/2023]
Abstract
Three polysaccharides were isolated from the roots of Urtica fissa by extraction, ultrafiltration, anion-exchange, and gel-filtration chromatography. The structures were characterized using acetylation, methylation, and spectral methods (GCMS, NMR). All three polysaccharides are mainly composed of D-arabinofuranosyl, D-galactopyranosyl, D-glucopyranosyl residues with different structural characteristics. Polysaccharide A of MW 5.2 x 10(3) contained a linear chain of 1-linked beta-D-glucopyranosyl, 1,6-linked beta-D-glucopyranosyl, 1,6-linked alpha-galactopyranosyl, and 1,5-linked beta-arabinofuranosyl moieties. Polysaccharide B of MW 7.7 x 10(4) possessed a chain consisting of 1,5-linked alpha-D-arabinofuranosyl, 1,3-linked beta-D-mannopyranosyl, 1,6-linked beta-D-glucopyranosyl, and 1,6-linked alpha-D-galactopyranosyl residues, but 4-O of alpha-D-galactopyranosyl residues were branched by terminal beta-D-glucopyranosyl residues. Polysaccharide C of MW 5.3 x 10(4) composed of a chain of 1,5-linked alpha-D-arabinofuranosyl, 1,4-linked beta-D-galactopyranosyl, 1,5-linked beta-D-xylopyranosyl, 1,4-linked beta-D-mannopyranosyl, 1-linked beta-D-glucopyranosyl residues, and the terminal beta-D-glucopyranosyl residues are attached to 3-O positions of 1,6-linked alpha-D-glucopyranosyl residues.
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Affiliation(s)
- Yan Li
- Beijing Institute of Radiation Medicine, Beijing, China
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Xiang M, Hou WR, Xie SN, Zhang WD, Wang X. Immunosuppressive effects of an ethyl acetate extract from Urtica dentata Hand on skin allograft rejection. J Ethnopharmacol 2009; 126:57-63. [PMID: 19698774 DOI: 10.1016/j.jep.2009.08.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2009] [Revised: 07/30/2009] [Accepted: 08/12/2009] [Indexed: 05/28/2023]
Abstract
AIM OF THE STUDY To investigate the immunosuppressive effects of HPLC qualitied ethyl acetate extract (EAE) from Urtica dentate Hand on skin allograft rejection in a murine model. MATERIALS AND METHODS Allo-skin transplantation model was established by placing skin allograft of C57BL/6 mice in the wound bed which was on the back of Balb/c mice. We used FACS to study the effects of EAE on dendritic cells (DCs) maturation and CD4(+)CD25(+)T regulatory cells (Tregs) differentiation. We also studied spleen lymphocyte proliferation and T-bet gene expression in DCs. Concentration of Th1/Th2 cytokines was monitored as markers of Th1/Th2 responses by ELISA. RESULTS A significant prolongation of skin allografts survival was observed as a dose-dependent manner in the animals treated with EAE. By FACS, we found that treatment with EAE (200 mg kg(-1)) resulted in an immature statement of DCs and stimulated the differentiation of CD4(+)CD25(+)Tregs. Additionally, the expression of T-bet gene and the proliferation of spleen lymphocytes were efficiently abated in EAE treated mice. Comparing to the model control, EAE-treated recipients showed a significant down-regulation (P<0.01) of Th1 cytokines (IL-2, IFN-gamma) and an obviously increase (P<0.01) of Th2 cytokine (IL-10) in the serum, which presented in a dose-related way. CONCLUSIONS The anti-allograft rejection effect of EAE by enhancing CD4(+)CD25(+)Tregs differentiation and sustaining DCs immaturation makes EAE to be a possible choice for treating autoimmune diseases in a way of inducing a stable immunological tolerance state.
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Affiliation(s)
- Ming Xiang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resources Evaluation, School of Pharmacy, Tongji Medical College, HuaZhong University of Science and Technology, Wuhan, China
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