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Hamimed S, Jebli N, Sellami H, Landoulsi A, Chatti A. Dual Valorization of Olive Mill Wastewater by Bio‐Nanosynthesis of Magnesium Oxide and
Yarrowia lipolytica
Biomass Production. Chem Biodivers 2020; 17:e1900608. [DOI: 10.1002/cbdv.201900608] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 02/03/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Selma Hamimed
- Laboratory of Biochemistry and Molecular BiologyUniversity of CarthageFaculty of Sciences of Bizerte CP 7021- Jarzouna Tunisia
| | - Nejib Jebli
- Laboratory of Hetero-Organic Compounds and Nanostructured MaterialsUniversity of CarthageFaculty of Sciences of Bizerte CP 7021- Jarzouna Tunisia
| | - Hanen Sellami
- Laboratory of Wastewater TreatmentWater Research and Technology Center CERTE Technopole Borj Cedria CP 8020- Soliman Tunisia
| | - Ahmed Landoulsi
- Laboratory of Biochemistry and Molecular BiologyUniversity of CarthageFaculty of Sciences of Bizerte CP 7021- Jarzouna Tunisia
| | - Abdelwaheb Chatti
- Laboratory of Biochemistry and Molecular BiologyUniversity of CarthageFaculty of Sciences of Bizerte CP 7021- Jarzouna Tunisia
- Laboratory of Wastewater TreatmentWater Research and Technology Center CERTE Technopole Borj Cedria CP 8020- Soliman Tunisia
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Piątczak E, Grąbkowska R, Wysokińska H. Production of Iridoid and Phenylethanoid Glycosides by In Vitro Systems of Plants from the Buddlejaceae, Orobanchaceae, and Scrophulariaceae Families. REFERENCE SERIES IN PHYTOCHEMISTRY 2018. [DOI: 10.1007/978-3-319-54600-1_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Boakye-Yiadom M, Han LF, Li W, Zhang Y, Liu EW, Song XB, Wang T. Chemical Constituents from Stems of Cistanches deserticola. CHINESE HERBAL MEDICINES 2016. [DOI: 10.1016/s1674-6384(16)60053-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Li Y, Zhou G, Peng Y, Tu P, Li X. Screening and identification of three typical phenylethanoid glycosides metabolites from Cistanches Herba by human intestinal bacteria using UPLC/Q-TOF-MS. J Pharm Biomed Anal 2016; 118:167-176. [DOI: 10.1016/j.jpba.2015.10.038] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/24/2015] [Accepted: 10/26/2015] [Indexed: 01/01/2023]
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Deng R, Xu Y, Feng F, Liu W. Identification of poliumoside metabolites in rat feces by high performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 969:285-96. [DOI: 10.1016/j.jchromb.2014.08.032] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 08/09/2014] [Accepted: 08/25/2014] [Indexed: 12/21/2022]
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Identification of acteoside and its major metabolites in rat urine by ultra-performance liquid chromatography combined with electrospray ionization quadrupole time-of-flight tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 940:77-85. [DOI: 10.1016/j.jchromb.2013.09.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 09/17/2013] [Accepted: 09/18/2013] [Indexed: 01/12/2023]
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Singab AN, Youssef FS, Ashour ML, Wink M. The genus Eremophila (Scrophulariaceae): an ethnobotanical, biological and phytochemical review. J Pharm Pharmacol 2013; 65:1239-79. [DOI: 10.1111/jphp.12092] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Accepted: 05/09/2013] [Indexed: 11/29/2022]
Abstract
Abstract
Objectives
Eremophila (Scrophulariaceae) is an endemic Australian genus with 214 species, which is commonly known as Fuchsia bush, Emu bush or Poverty bush. Plants of this genus played an important role for the Australian Aborigines who used them widely for medicinal and ceremonial purposes. Many studies have been carried out on many species of this genus and have generated immense data about the chemical composition and corresponding biological activity of extracts and isolated secondary metabolites.
Key findings
Thorough phytochemical investigations of different Eremophila species have resulted in the isolation of more than 200 secondary metabolites of different classes with diterpenes as major constituents. Biological studies and traditional clinical practice demonstrated that Eremophila and its bioactive compounds possess various pharmacological properties. Plants were employed especially as a cardiotonic drug and also as potent anti-inflammatory, antimicrobial and antiviral agents.
Summary
Further investigations are required to explore other Eremophila species, to evaluate the different biological activities of either their extracts or the isolated compounds and the possible underlying modes of action.
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Affiliation(s)
- Abdel Nasser Singab
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Fadia S Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Mohamed L Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Heidelberg, Germany
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Heidelberg, Germany
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Lu D, Zhang J, Yang Z, Liu H, Li S, Wu B, Ma Z. Quantitative analysis of Cistanches Herba using high-performance liquid chromatography coupled with diode array detection and high-resolution mass spectrometry combined with chemometric methods. J Sep Sci 2013; 36:1945-52. [DOI: 10.1002/jssc.201300135] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/06/2013] [Accepted: 03/24/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Danyi Lu
- Division of Pharmaceutics, College of Pharmacy; Jinan University; Guangzhou China
| | - Jiayu Zhang
- Center of Scientific Experiment; Beijing University of Chinese Medicine; Beijing China
| | - Zhenya Yang
- Division of Pharmaceutics, College of Pharmacy; Jinan University; Guangzhou China
| | - Hongming Liu
- Division of Pharmaceutics, College of Pharmacy; Jinan University; Guangzhou China
| | - Sha Li
- Division of Pharmaceutics, College of Pharmacy; Jinan University; Guangzhou China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Guangzhou China
| | - Baojian Wu
- Division of Pharmaceutics, College of Pharmacy; Jinan University; Guangzhou China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Guangzhou China
| | - Zhiguo Ma
- Division of Pharmaceutics, College of Pharmacy; Jinan University; Guangzhou China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Guangzhou China
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Li F, Yang X, Yang Y, Guo C, Zhang C, Yang Z, Li P. Antiosteoporotic activity of echinacoside in ovariectomized rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2013; 20:549-57. [PMID: 23428402 DOI: 10.1016/j.phymed.2013.01.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/09/2012] [Accepted: 01/23/2013] [Indexed: 05/07/2023]
Abstract
PURPOSE Echinacoside (ECH), isolated from Cistanche tubulosa (Schrenk) R. Wight stems, has been reported to enhance bone regeneration in MC3T3-E1 cells in vitro. The objectives of this study were to investigate the antiosteoporotic effect of ECH on bone metabolism in the ovariectomized (OVX) rat model of osteoporosis in vivo. METHODS Fifty-six aged 6 months female Sprague-Dawley rats were randomly assigned into sham-operated group (SHAM) and six OVX subgroups (n=8 each). The OVX rats were then subdivided into six groups treated with vehicle (OVX), Xian-ling-gu-bao (XLGB, 0.5 g/kg body weight/day, orally), 17β-estradiol (E2, 50 μg/kg body weight/day, orally) or ECH (30, 90, and 270 mg/kg body weight, daily, orally) for 12 weeks respectively. We evaluated the pharmacological effects of E2, XLGB and ECH against osteoporosis by evaluating the body weight, uterus wet weight, serum and urine biochemical parameters, bone mineral density (BMD), bone biomechanical properties, bone microarchitecture, bone histomorphology and uterus immunohistochemistry. RESULTS In OVX rats, the increases of body weight, serum hydroxyproline (HOP) levels, and the decreases of uterus wet weight and BMD were significantly reversed by ECH treatment. Moreover, three dosages of ECH completely corrected the increased urine concentration of calcium (Ca), inorganic phosphorus (P), and HOP observed in OVX rats. Furthermore, Micro-CT analysis results of distal femur showed that all ECH-treated groups notably enhanced bone quality compared to OVX group (p<0.05). Consistent with this finding, total femur BMD and biomechanical strength of tibia were significantly improved (p<0.05) after 12 weeks ECH administration. Histological results also showed the protective activity of ECH through promotion of bone formation and suppression of bone resorption. In addition, the ECH administration also significantly enhanced the expression of ER in the uteri according to immunohistochemical evaluation (p<0.05). Those findings, based on the serum and urine biochemical, BMD, Micro-CT, biomechanical test, histopathological and immunohistochemical parameters, showed that ECH has a notable antiosteoporotic effect, similar to estrogen, especially effective for prevention osteoporosis induced by estrogen deficiency. CONCLUSION These results suggest that ECH, as a new class of phytoestrogen, has a remarkable antiosteoporotic activity, and may be a promising candidate for treatment of postmenopausal osteoporosis induced by estrogen deficiency in a natural way through herbal resources.
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Affiliation(s)
- Fei Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China
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Li F, Yang Y, Zhu P, Chen W, Qi D, Shi X, Zhang C, Yang Z, Li P. Echinacoside promotes bone regeneration by increasing OPG/RANKL ratio in MC3T3-E1 cells. Fitoterapia 2012; 83:1443-50. [DOI: 10.1016/j.fitote.2012.08.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 08/06/2012] [Accepted: 08/10/2012] [Indexed: 01/23/2023]
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Ramadan MF, Hefnawy HTM, Gomaa AM. Bioactive lipids and fatty acids profile of Cistanche phelypaea. J Verbrauch Lebensm 2010. [DOI: 10.1007/s00003-010-0648-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pharmacological Activities of Phenylpropanoids Glycosides. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/s1572-5995(06)80037-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Obied HK, Allen MS, Bedgood DR, Prenzler PD, Robards K, Stockmann R. Bioactivity and analysis of biophenols recovered from olive mill waste. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2005; 53:823-37. [PMID: 15712986 DOI: 10.1021/jf048569x] [Citation(s) in RCA: 223] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Biophenols have attracted increasing attention during the past few years due to their biological activities and natural abundance and are potential targets for the food and pharmaceutical industries. Olive mill waste (OMW) is rich in biophenols and typically contains 98% of the total phenols in the olive fruit, making value addition to OMW an attractive enterprise. The phenolic profile of OMW is complex, yet this complexity has not been fully exploited in the valorization of the waste. Most work on the bioactivity of OMW has focused on antioxidant and antimicrobial activities. The analytical techniques used to identify and quantify active biophenols are also reviewed.
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Affiliation(s)
- Hassan K Obied
- School of Science and Technology and School of Wine and Food Sciences, Charles Sturt University, Wagga Wagga, NSW 2678, Australia
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Pennacchio M, Kemp AS, Taylor RP, Wickens KM, Kienow L. Interesting biological activities from plants traditionally used by Native Australians. JOURNAL OF ETHNOPHARMACOLOGY 2005; 96:597-601. [PMID: 15619584 DOI: 10.1016/j.jep.2004.10.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2004] [Revised: 09/10/2004] [Accepted: 10/13/2004] [Indexed: 05/24/2023]
Abstract
Four plants routinely used for medicinal purposes by Native Australians were screened for various biological activities. Methanol extracts of Eremophila maculata, Acacia auriculoformis and Acacia bivenosa exhibited antibiotic effects, while Eremophila alternifolia yielded an extract that induced significant changes to the heart activity of spontaneously hypertensive rats. We report on these biological activities.
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Affiliation(s)
- Marcello Pennacchio
- Institute for Plant Conservation, Chicago Botanic Garden, 1000 Lake Cook Drive, Glencoe, IL 60022, USA.
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Tam WY, Chen ZY, He ZD, Yao X, Lau CW, Huang Y. Enhancement of contraction of rat mesenteric artery by acteoside: role of endothelial nitric oxide. JOURNAL OF NATURAL PRODUCTS 2002; 65:990-995. [PMID: 12141858 DOI: 10.1021/np010454p] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The present study describes the role of endothelium in the vascular response to purified acteoside from Ligustrum purpurascens in rat mesenteric arteries. In endothelium-intact rings, acteoside (3-50 micromol/L) enhanced phenylephrine-induced contraction without affecting the maximum response. This enhancement was absent in endothelium-denuded rings. Pretreatment with nitric oxide synthase (NOS) inhibitors, N(G)-nitro-L-arginine (L-NNA, 100 micromol/L) and N(G)-nitro-L-arginine methyl ester (L-NAME, 100 micromol/L), or a selective guanylyl cyclase inhibitor, 1H-[1,2,4]oxadiazolo[4,2-alpha]quinoxalin-1-one (ODQ, 10 micromol/L), increased both the sensitivity of vasoconstriction to phenylephrine and the maximal response. The enhancing effect of acteoside (30 micromol/L) was abolished in the presence of L-NAME, L-NNA, or ODQ. Tetraethylammonium (TEA(+), 3 mmol/L), a putative K(+) channel blocker, also abolished the effect of acteoside. CaCl2 (0.01-10 mmol/L) induced contractions in 50 mmol/L K(+)-containing Krebs solution. Neither acteoside nor TEA(+) affected CaCl2-induced contraction in elevated K(+) solution. Acteoside (30 micromol/L) attenuated acetylcholine-induced endothelium-dependent relaxation. Acteoside did not influence relaxation induced by exogenous NO donors, hydroxylamine or sodium nitroprusside, in endothelium-denuded rings. Acteoside did not alter endothelium-independent relaxation induced by forskolin or NS 1619. The present results indicate that acteoside enhanced the evoked vasoconstriction, mainly through inhibition of endothelial NO production/release and inhibition of NO-mediated TEA(+)-sensitive activation of K(+) channels.
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Affiliation(s)
- Wing-Yin Tam
- Department of Physiology, Chinese University of Hong Kong, Hong Kong, China
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Ohno T, Inoue M, Ogihara Y, Saracoglu I. Antimetastatic activity of acteoside, a phenylethanoid glycoside. Biol Pharm Bull 2002; 25:666-8. [PMID: 12033512 DOI: 10.1248/bpb.25.666] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We examined the antimetastatic effect of acteoside, a phenylethanoid glycoside widely distributed in the plant kingdom, on lung metastasis using a mouse model injected with B16 melanoma cells intravenously. Male C57BL/6 mice were injected intravenously with 2 x 10(5) of B16 melanoma cells, while acteoside at a dose of 50 mg/kg was administered intraperitoneally every other day from 13 d before B16 melanoma cell injection until all mice had succumbed to the metastatic tumor burden in the lung. Administration of acteoside prolonged survival time significantly and the average survival time was 63.3 +/- 3.4d compared with 52.1 +/- 2.5d in control mice. This result suggests that acteoside showed suppressive effect on lung metastasis of B16 melanoma cells.
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Affiliation(s)
- Takamasa Ohno
- Laboratory of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Nagoya City University, Japan
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Miłkowska-Leyck K, Filipek B, Strzelecka H. Pharmacological effects of lavandulifolioside from Leonurus cardiaca. JOURNAL OF ETHNOPHARMACOLOGY 2002; 80:85-90. [PMID: 11891090 DOI: 10.1016/s0378-8741(02)00016-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Lavandulifolioside was detected for the first time in Leonurus cardiaca var. vulgaris [Moench] Briquet (Lamiaceae). The isolation was performed from the butanolic extract of the aerial parts and the identification by NMR and MS. The pharmacological properties of lavandulifolioside consist of significant negative chronotropism, prolongation of the P-Q, Q-T intervals and QRS complex, and decrease of blood pressure. Contrary to the butanolic extract lavandulifolioside did not reduce the spontaneous locomotor activity. In conclusion, the pharmacological pattern of lavandulifolioside did not explain the pharmacological effects of L. cardiaca L. alone.
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Abstract
Lantana camara L. is regarded both as a notorious weed and a popular ornamental garden plant and has found various uses in folk medicine in many parts of the world. Some taxa of the widely variable L. camara complex are toxic to small ruminants and this effect has been associated with the types and relative amounts of some triterpene ester metabolites. However, L. camara also produces a number of metabolites in good yields and some have been shown to possess useful biological activities. All these aspects are considered in this review to allow an evaluation of the potential for utilisation of the large biomass of Lantana available. The phytochemistry of other members of the Lantana genus is included.
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Affiliation(s)
- E L Ghisalberti
- Department of Chemistry, University of Western Australia, Nedlands, Western Australia 6907, Australia.
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Xiong Q, Tezuka Y, Kaneko T, Li H, Tran LQ, Hase K, Namba T, Kadota S. Inhibition of nitric oxide by phenylethanoids in activated macrophages. Eur J Pharmacol 2000; 400:137-44. [PMID: 10913595 DOI: 10.1016/s0014-2999(00)00354-x] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nitric oxide (NO) is one of the pro-inflammatory molecules. Some phenylethanoids have been previously shown to possess anti-inflammatory effects. Seven phenylethanoids from the stems of Cistanche deserticola, viz. isoacteoside, tubuloside B, acteoside, 2'-O-acetylacteoside, echinacoside, cistanoside A and tubuloside A, were tested for their effect on NO radical generation by activated murine macrophages. At the concentration of 100-200 microM, all the phenylethanoids reduced (6.3-62.3%) nitrite accumulation in lipopolysaccharide (0.1 microgram/ml)-stimulated J774.1 cells. At 200 microM, they inhibited by 32.2-72.4% nitrite accumulation induced by lipopolysaccharide (0.1 microgram/ml)/interferon-gamma (100 U/ml) in mouse peritoneal exudate macrophages. However, these compounds did not affect the expression of inducible nitric oxide (iNOS) mRNA, the iNOS protein level, or the iNOS activity in lipopolysaccharide-stimulated J774.1 cells. Instead, they showed a clear scavenging effect (6.9-43.9%) at the low concentrations of 2-10 microM of about 12 microM nitrite generated from an NO donor, 1-propanamine-3-hydroxy-2-nitroso-1-propylhydrazino (PAPA NONOate). These results indicate that the phenylethanoids have NO radical-scavenging activity, which possibly contributes to their anti-inflammatory effects.
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Affiliation(s)
- Q Xiong
- Institute of Natural Medicine, Toyama Medical and Pharmaceutical University, 2630-Sugitani, 930-0194, Toyama, Japan
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Duynstee HI, de Koning MC, Ovaa H, van der Marel GA, van Boom JH. Synthesis of Verbascoside: A Dihydroxyphenylethyl Glycoside with Diverse Bioactivity. European J Org Chem 1999. [DOI: 10.1002/(sici)1099-0690(199910)1999:10<2623::aid-ejoc2623>3.0.co;2-k] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Xiong Q, Hase K, Tezuka Y, Namba T, Kadota S. Acteoside inhibits apoptosis in D-galactosamine and lipopolysaccharide-induced liver injury. Life Sci 1999; 65:421-30. [PMID: 10421428 DOI: 10.1016/s0024-3205(99)00263-5] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We assessed the effect of acteoside, a naturally occurring antioxidative phenylethanoid, on hepatic apoptosis and the subsequent liver failure induced by D-Galactosamine (D-GalN) and lipopolysaccharide (LPS). A co-administration of D-GalN (700 mg/kg) and LPS (35 microg/kg) to mice evoked typical hepatic apoptosis characterized by DNA fragmentation and apoptotic body formation, resulting in fulminant hepatitis and lethality of mice. Pre-administration of acteoside at 10 or 50 mg/kg subcutaneously at 12 and 1 h prior to D-GalN/LPS intoxication significantly inhibited hepatic apoptosis, hepatitis and lethality. Tumor necrosis factor-alpha (TNF-alpha) secreted from LPS-stimulated macrophages is an important mediator of apoptosis in this model. Acteoside showed no apparent effect on the marked elevation of serum TNF-alpha, but it partially prevented in vitro TNF-alpha (100 ng/ml)-induced cell death in D-GalN (0.5 mM)-sensitized hepatocytes at the concentrations of 50, 100 and 200 microM. These results indicated that D-GalN/LPS-induced hepatic apoptosis can be blocked by an exogenous antioxidant, suggesting the involvement of reactive oxygen intermediates (ROIs) in TNF-alpha-dependent hepatic apoptosis.
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Affiliation(s)
- Q Xiong
- Research Institute for Wakan-Yaku (Traditional Sino-Japanese Medicines), Toyama Medical & Pharmaceutical University, Japan
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Pennacchio M, Syah YM, Alexander E, Ghisalberti EL. Mechanism of action of verbascoside on the isolated rat heart: increases in level of prostacyclin. Phytother Res 1999; 13:254-5. [PMID: 10353173 DOI: 10.1002/(sici)1099-1573(199905)13:3<254::aid-ptr430>3.0.co;2-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The mechanism of the positive cardioactive effects induced by verbascoside in the Lagendorff rat heart has been investigated. Isolated rat hearts treated with alpha- or beta-adrenergic agents did not show significant reduction of the positive chronotropism, inotropism and increased coronary perfusion rate mediated by verbascoside. A significant increase in prostacyclin levels (142%) observed following the administration of verbascoside suggests that prostacyclin stimulates formation of cAMP which induces the cardioactivity associated with verbascoside.
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Affiliation(s)
- M Pennacchio
- School of Environmental Biology, Curtin University of Technology, Perth, Western Australia, Australia
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