Abstract:
:Aerial parts of Pterocaulon polystachyum from Chaco province, Argentina, afforded the known coumarins ayapin, isoscopoletin, prenyletin, prenyletin methyl ether, virgatenol, obtusinin, 5-methoxy-6,7-methylenedioxycoumarin, 5-(3,3-dimethylallyloxy)-6,7-methylenedioxycoumarin, 5-(2',3'-dihydroxy-3-methylbutanoxy)-6,7-methylenedioxycoumarin, haplopinol methyl ether, 6-(1,1-dimethyl-2-propenyl)-7-hydroxycoumarin and demethylnieshoutin; the last two are new as natural products while the five new coumarins from the collection were isovirgatenol, 3'-deoxyobtusinin, 6-methoxy-7-(2'-hydroxyethoxy)-coumarin, 5-(2'-hydroxyethoxy)-6,7-methylenedioxycoumarin and a substance tentatively identified as 5-hydroxy-6,7-methylenedioxy-8-(3,3-dimethylallyl)-coumarin.
journal_name
Planta Medjournal_title
Planta medicaauthors
Vera N,Bardón A,Catalán CA,Gedris TE,Herz Wdoi
10.1055/s-2001-17365subject
Has Abstractpub_date
2001-10-01 00:00:00pages
674-7issue
7eissn
0032-0943issn
1439-0221journal_volume
67pub_type
信件相关文献
PLANTA MEDICA文献大全abstract::Five compounds representative of major structural classes of lichen polyketides, VIZ. (+)-usnic (1), salazinic (2), vulpinic (3), gyrophoric (4), and evernic acids (5), were investigated for their ability to affect cell proliferation or wound healing, two functional targets of relevance for research on cancer or tissu...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-0029-1185329
更新日期:2009-05-01 00:00:00
abstract::IN VITRO plant regeneration of Gentiana macrophylla Pall. and determination of gentiopicroside content during somatic embryogenesis are described in the present work. The highest percentage of embryogenic callus formation was observed in Murashige and Skoog (MS) medium supplemented with 1.0 mg/L 2,4-dichlorophenoxyace...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-0029-1185808
更新日期:2009-12-01 00:00:00
abstract::In the present study, we attempted to compare quercetin methyl ethers and to look for the structure-activity relationships, which may be helpful for synthesizing more active compounds for the treatment of asthma. Four present and two previously studied quercetin methyl ethers concentration-dependently relaxed histamin...
journal_title:Planta medica
pub_type: 信件
doi:10.1055/s-2006-960776
更新日期:1999-04-01 00:00:00
abstract::From roots of Rubia cordifolia L. four anthraquinones are isolated: 1-hydroxy 2-methoxy anthraquinone; 1,4-dihydroxy 2-methyl 5-methoxy anthraquinone or 1,4-dihydroxy 2-methyl 8-methoxy anthraquinone; 1,3-dimethoxy 2-carboxy anthraquinone and rubiadin. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971524
更新日期:1981-12-01 00:00:00
abstract::A total of 37 commercial samples of Ginseng Radix, the origins of which belonged to Panax ginseng C. A. Meyer, P. quinquefolia Linn. (American ginseng), and P. notoginseng Burkill (sanchi-ginseng), respectively, were collected from the Taiwan herbal markets. The contents of nine ginsenosides, Rb(1), Rb(2), Rc, Rd, Re,...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2006-958137
更新日期:1995-10-01 00:00:00
abstract::Embelia ribes Burm. f. (Myrsinaceae) is one of the important plants used in Indian traditional medicine. RAPD-PCR analysis was performed to obtain species-specific DNA fragments. A band of 906 bp that was specific to Embelia ribes irrespective of the geographical source was obtained using the random decamer primer OPF...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2008-1034279
更新日期:2008-02-01 00:00:00
abstract::N-Deacetylcolchiceine (DAC) administered i.p. to rats decreased the level of serum cholesterol and apoB. It was accompanied by the fall of HDL-C due to the decrease of both HDL subfractions HDLa and HDLb, and by a rather weaker decrease of LDL-C. The levels of serum and lipoprotein triacylglycerols were not significan...
journal_title:Planta medica
pub_type: 杂志文章
doi:
更新日期:1992-02-01 00:00:00
abstract::Three new compounds, namely, (+)-dihydrodehydrodiconiferyl alcohol 4- O- beta-(6''- O-galloyl)-glucopyranoside ( 1), 4,4'- O-dimethylellagic acid 3-(2''- O-acetyl)- alpha-rhamnopyranoside ( 2), and ethyl O- beta-(6'-galloyl)-glucopyranoside ( 3), together with eleven known ones, were isolated from the stem bark of Tre...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2008-1034361
更新日期:2008-03-01 00:00:00
abstract::From stem barks of Isolona guesquiereina three known bisbenzylisoquinolines were isolated and identified as (-)-curine, chondrofoline and isochondodendrine. Structures were established mainly on the basis of comparison of their physical and spectral data with published data for them and their methylated derivatives. C...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2000-8610
更新日期:2000-08-01 00:00:00
abstract::Three flavonoids: norwogonin, dihydronorwogonin and baicalein, were isolated from the roots of Scutellaria baicalensis, as potential inhibitors of VHR dual-specificity protein tyrosine phosphatase (DS-PTPase). Norwogonin (IC 50 = 1.1 microM), dihydronorwogonin (IC 50 = 2.9 microM) and baicalein (IC 50 = 2.4 microM) sh...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2002-36351
更新日期:2002-12-01 00:00:00
abstract::Jujuboside A (JuA) is a glycoside extracted from the seed of Ziziphus jujuba Mill var. spinosa (Bunge) Hu ex H F Chou, a Chinese herbal medicine, which has long been known as a sedative-hypnotic drug. The present study used the method of intracerebroventricular (i.c.v.) JuA in vivo to detect the effect of JuA on paire...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2002-34398
更新日期:2002-09-01 00:00:00
abstract::Malaria is a parasitic disease endemic to tropical and subtropical regions responsible for hundreds of millions of clinical cases and hundreds of thousands of deaths yearly. Its agent, the Plasmodium sp., has a highly variable antigenicity, which accounts for the emergence and spread of resistance to all available tre...
journal_title:Planta medica
pub_type: 杂志文章,评审
doi:10.1055/a-1148-9000
更新日期:2020-06-01 00:00:00
abstract::Alpinia galanga, or galangal, has been a popular condiment used in Thai and Asian cuisine for many years. However, relatively little is known of the potential beneficial or adverse health effects of this spice. This study was conducted to analyze the capacity of galangal extract to induce cytotoxicity and DNA damage i...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-981542
更新日期:2007-07-01 00:00:00
abstract::Extracts of Viscum album L. produced by a specific homogenization procedure contain viscotoxins (VT) and liposome-like membrane vesicles, formed from cellular membranes. Interactions between these membrane structures and viscotoxins are characterized in this work. Binding properties of viscotoxins with mistletoe extra...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2008-1034282
更新日期:2008-02-01 00:00:00
abstract::The leaves of Myrcia ovata, popularly known as "laranjinha do mato", are frequently used as an infusion in folk medicine. The essential oil obtained from these leaves is rich in citral, a mixture of neral and geranial isomers, known for its analgesic effect. Male Swiss mice (20-22 g) were tested in models of acute pai...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-0034-1383120
更新日期:2014-11-01 00:00:00
abstract::A micellar electrokinetic capillary chromatography (MEKC) method for the determination of xanthyletin and xanthoxyletin in the roots bark of three Citrus plants was developed for the first time. The electrophoresis buffer was 10 mmol/L sodium borate containing 50 mmol/L sodium dodecyl sulfate, 20% (v/v) acetonitrile a...
journal_title:Planta medica
pub_type: 信件
doi:10.1055/s-2003-39697
更新日期:2003-05-01 00:00:00
abstract::Bioassay directed fractionation of the (1:1) chloroform-methanol extract of Gentiana spathacea H.B.K (Gentianaceae) led to the isolation of gentiopicroside (gentiopricrin) (1), the major spasmolytic component of the plant. Gentiopicroside inhibited, in a concentration-dependent manner, the spontaneous contractions of ...
journal_title:Planta medica
pub_type: 信件
doi:10.1055/s-2000-9774
更新日期:2000-12-01 00:00:00
abstract::Three new secoiridoid glucosides, jasamplexosides A, B and C, were isolated from the crude drug "Niu du teng", the leaves and stems of JASMINUM AMPLEXICAULE, together with the known secoiridoid glucosides, 10-hydroxyligstroside and jasminoside. Their structural elucidation by spectroscopic studies is described. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2006-961548
更新日期:1992-12-01 00:00:00
abstract::An in vitro propagation protocol for rapidly producing Hydrastis canadensis L., Goldenseal, plantlets from disk tissue of young leaves was developed. Leaf explants were inoculated on MS medium supplemented with various concentrations of NAA and TDZ for production of callus. Two-month-old calli were sub-cultured on MS ...
journal_title:Planta medica
pub_type: 信件
doi:10.1055/s-2003-37039
更新日期:2003-01-01 00:00:00
abstract::The cytotoxicity and immunosuppressive activities of jaborosalactone-L and three 16 alpha-oxygenated withanolides from the leaves of Discopodium penninervium were studied. Jaborosalactone-L showed cytotoxicity only to the murine macrophage cell line, RAW 264.7, but the 16 alpha-oxygenated withanolides exhibited cytoto...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2006-957594
更新日期:1997-02-01 00:00:00
abstract::Thalivarmine and thalsivasine, together with the known bases thalmelatidine, thalicberine, O-methylthalicberine, thaliphylline, thalmethine, O-methylthalmethine and (-)- N-methylcanadine have been isolated from the above ground parts of THALICTRUM MINUS var. MINUS L. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-969547
更新日期:1985-10-01 00:00:00
abstract::The structure of albifloranine 1, a new alkaloid of ibogane type from the stem bark of Tabernaemontana albiflora (M IQ.) Pull. (Apocynaceae) has been determined. A detailed (1)H NMR study of albifloranine 1, coronaridine 2 and heyneanine 3 is presented. ...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-971678
更新日期:1981-01-01 00:00:00
abstract::The effects of four fractions, a hexane fraction, an ethyl acetate fraction, an N-butanol fraction and a water fraction, from a water extract of Herba Visci were investigated to find the fraction, in IN VITRO experiments, with the greatest ability to inhibit the formation of osteoclast-like multinucleated cells from m...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2008-1034283
更新日期:2008-02-01 00:00:00
abstract::The Mexican species GALPHIMIA GLAUCA (Cav.) Kuntze (Malphigiaceae) synthesises a family of sedative and anxiolytic nor-secofriedelanes, designated as galphimines. These active principles accumulate at low concentration in the aerial parts of plants from wild populations. Transformed calluses and cell suspension cultur...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-0029-1186166
更新日期:2010-03-01 00:00:00
abstract::Four antiplatelet components were isolated from Arnebia euchroma. They inhibited the aggregation of washed rabbit platelets caused by collagen, arachidonic acid, platelet-activating factor, ADP, or thrombin. The potency of inhibiting collagen-induced platelet aggregation is in the following order: acetylshikonin (IC50...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2006-959718
更新日期:1993-10-01 00:00:00
abstract::The present study explores the potential of nanoemulsion, a lipid drug delivery system, to improve solubility and oral absorption of Silybum marianum extract. The optimized formulation contained 40 mg/mL of commercial extract (4 % w/w) and it was composed of 2.5 g labrasol (20 %) as the oil phase, 1.5 g cremophor EL a...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-0043-110052
更新日期:2017-10-01 00:00:00
abstract::Thyme extract is known to posses spasmolytic effects on isolated trachea and to increase ciliary activity. A small part of this effect is mediated via beta (2) receptors, but other receptors are supposed to be involved. Endothelin has a pathophysiological impact in asthma with respect to hyper-reagibility and contract...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2008-1081349
更新日期:2008-10-01 00:00:00
abstract::Thirty-five flavonoids of seven different types, namely isoflavonoids, chalcones, dihydroflavonols, flavanols, flavanones, flavones, and flavonols were investigated for their ability to inhibit ascorbate-induced microsomal lipid peroxidation and their cytotoxicity. For each activity a structure-activity relationship w...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2001-16472
更新日期:2001-08-01 00:00:00
abstract::This in vitro study aimed to determine the effects of a Panax ginseng extract on aristolochic acid-mediated toxicity in HK-2 cells. A methanolic extract of ginseng (50 µg/mL) was able to reduce cell survival after treatment with 50 µM aristolochic acid for 24, 48, and 72 h, as evidenced by a resazurin reduction assay....
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-0035-1545839
更新日期:2015-03-01 00:00:00
abstract::Antroquinonol ( 1), an ubiquinone derivative, was isolated from the solid-state fermented mycelium of Antrodia camphorata (Polyporaceae, Aphyllophorales), a parasitic fungus indigenous to Taiwan. The structure of compound 1 was elucidated by the analysis of their spectroscopic data. Its cytotoxic activities were evalu...
journal_title:Planta medica
pub_type: 杂志文章
doi:10.1055/s-2007-990232
更新日期:2007-10-01 00:00:00