Biological activity of some Patagonian plants.

abstract：:alpha(2)beta(1) and alpha(IIb)beta(3) integrins, that support platelet adhesion to collagen and fibrinogen, respectively, share common signaling molecules. The effect of quercetin on platelet static adhesion to collagen and fibrinogen was assessed and correlated with its kinase inhibitory activity. Quercetin strongly ...

journal_title：Fitoterapia

authors： Navarro-Núñez L,Lozano ML,Martínez C,Vicente V,Rivera J

更新日期：2010-03-01 00:00:00

abstract：:Combinations of thyme, cowslip and liquorice roots are often used in the treatment of upper respiratory tract infections. Therefore the volatile fraction of herbal teas prepared from thyme (Thymus vulgaris) and the effect of combining with cowslip (Primula veris/P. elatior) and liquorice roots (Glycyrrhiza glabra) on ...

journal_title：Fitoterapia

authors： Tschiggerl C,Bucar F

更新日期：2011-09-01 00:00:00

abstract：:Two new dimeric diarylheptanoids, named Alpinin C (1) and D (2), a new natural product of diarylheptanoid (3) along with three known diarylheptanoids (4-6) were isolated from the rhizomes of Alpinia officinarum Hance. Their structures were elucidated based on extensive spectroscopic analyses (1D and 2D NMR, HRTOFMS, I...

journal_title：Fitoterapia

authors： Liu D,Liu YW,Guan FQ,Liang JY

更新日期：2014-07-01 00:00:00

abstract：:The last few decades have seen an alarming rise in fungal infections, which currently represent a global health threat. Despite extensive research towards the development of new antifungal agents, only a limited number of antifungal drugs are available in the market. The routinely used polyene agents and many azole an...

journal_title：Fitoterapia

authors： Shreaz S,Wani WA,Behbehani JM,Raja V,Irshad M,Karched M,Ali I,Siddiqi WA,Hun LT

更新日期：2016-07-01 00:00:00

abstract：:Salvianolic acid B (Sal B) is the most abundant phenolic compound in Salvia miltiorrhiza, which has been widely used for the treatment of cardiovascular diseases in Oriental medicine. To elucidate structure of the converted compounds of Sal B by decoction in aqueous solution, Sal B (200 mg) was decocted in an aqueous ...

journal_title：Fitoterapia

authors： Lee HJ,Cho JY,Moon JH

更新日期：2012-10-01 00:00:00

abstract：:Five new lanostane triterpenoids, ganoderic acid XL1 (1), ganoderic acid XL2 (2), 20-hydroxy-ganoderic acid AM1 (3), ganoderenic acid AM1 (4) and ganoderesin C (5), together with five known triterpenoids (6-10) were isolated from the fruiting bodies of Ganoderma theaecolum. Chemical structures were elucidated on the b...

journal_title：Fitoterapia

authors： Liu LY,Chen H,Liu C,Wang HQ,Kang J,Li Y,Chen RY

更新日期：2014-10-01 00:00:00

abstract：:The methanol extract and four triterpenoids isolated from the seeds of Caesalpinia bonducella showed a wide range of inhibiting activity against both gram-positive and gram-negative bacteria. ...

journal_title：Fitoterapia

authors： Saeed MA,Sabir AW

更新日期：2001-11-01 00:00:00

abstract：:Aconitum carmichaelii has been used in traditional Chinese medicine for treating various diseases for several thousand years. Based on the biosynthetic pathway of some alkaloids such as C19-diterpenoid alkaloids and obvious differences in alkaloid content between leaves of two A. carmichaelii varieties has been report...

journal_title：Fitoterapia

authors： Yang Y,Hu P,Zhou X,Wu P,Si X,Lu B,Zhu Y,Xia Y

更新日期：2020-01-01 00:00:00

abstract：:Five new phthalides (1-4, 6), two new natural products (5, 7) and five known phthalides (8-12) were isolated from the aerial parts of Ligusticum sinense Oliv cv. Chaxiong. Their structures were elucidated by HR-ESI-MS, UV, IR, 1D and 2D NMR (HSQC, HMBC, (1)H-(1)H COSY, NOESY) methods. The absolute configurations were ...

journal_title：Fitoterapia

authors： Wei Q,Yang J,Ren J,Wang A,Ji T,Su Y

更新日期：2014-03-01 00:00:00

abstract：:Ethanol extract of Maytenus rigida stem bark and its fractions were assessed for antinociceptive activity in tail-flick test in rats. The activity was located in the chloroform, ethyl acetate and aq.methanol fractions. Phytochemical screening revealed that catechin was the only common class of compounds present on the...

journal_title：Fitoterapia

authors： Dias KS,Marques MS,Menezes IA,Santos TC,Silva AB,Estevam CS,Sant'Ana AE,Pizza C,Antoniolli AR,Marçal RM

更新日期：2007-12-01 00:00:00

abstract：:A new diterpenoid ester, fritillahupehin (1) together with three known fatty acids: palmitic acid (2), lignoceric acid (3) and azelaic acid (4) were isolated from the bulbs of Fritillaria hupehensis Hsiao and K.C. Hsia. The structure of fritillahupehin has been established to be ent-kauran-16beta-yl lignocerate by mea...

journal_title：Fitoterapia

authors： Ruan H,Zhang Y,Wu J,Deng S,Sun H,Fujita T

更新日期：2002-07-01 00:00:00

abstract：:A phytochemical study of an ethanol-soluble extract from the root barks of Daphne tangutica Maxim., a traditional Tibetan herb medicine, led to the isolation of 30 compounds, including eight daphnane diterpenes, nine coumarines, six lignans, five phenylpropanoid derivatives, beta-sitosterol and p-hydroxy benzonate. Tw...

journal_title：Fitoterapia

authors： Pan L,Zhang XF,Deng Y,Zhou Y,Wang H,Ding LS

更新日期：2010-01-01 00:00:00

abstract：:A pair of diastereoisomers, the N-glycosylated derivatives of dioxindole-3-hydroxy-3-acetic acid 1-2, and their conjugates with flavonoids 3-8, was isolated from the seeds of Ziziphus jujuba var. spinosa. Their structures were elucidated by NMR spectroscopic analyses, and the absolute configurations were determined by...

journal_title：Fitoterapia

authors： Li M,Wang Y,Tsoi B,Jin XJ,He RR,Yao XJ,Dai Y,Kurihara H,Yao XS

更新日期：2014-12-01 00:00:00

abstract：:The flavonoid baicalein has been demonstrated to be an activator of the transcription factor Nrf2 in mammalian cell lines. We show that it further modulates the Nrf2 homolog SKN-1 in Caenorhabditis elegans and by this pathway mediates beneficial effects in the nematode: baicalein enhances the resistance of C. elegans ...

journal_title：Fitoterapia

authors： Havermann S,Humpf HU,Wätjen W

更新日期：2016-09-01 00:00:00

abstract：:StAPs are potato aspartic proteases with cytotoxic activity against plant pathogens and spermatozoa. StAPs cytotoxic activity is selective, since these proteins do not exert toxic effect on plant cells and erythrocytes. In this work, we investigated the capacity of StAPs to exert cytotoxicity on human leukaemia cells....

journal_title：Fitoterapia

authors： Mendieta JR,Fimognari C,Daleo GR,Hrelia P,Guevara MG

更新日期：2010-07-01 00:00:00

abstract：:Extracts of Hypericum, Passiflora and Valeriana are used for the treatment of mild depression and anxiety. We were interested whether a combination of Hypericum and Passiflora exerts comparable effects to Hypericum alone. We used two well-established models for investigating extracts for their anti-depressant activity...

journal_title：Fitoterapia

authors： Fiebich BL,Knörle R,Appel K,Kammler T,Weiss G

更新日期：2011-04-01 00:00:00

abstract：:Three new xanthones, oblongixanthone F-H (1-3), along with eight known xanthones (4-11), were isolated from an EtOAc extract of the twigs of Garcinia oblongifolia. Their structures were elucidated by spectroscopic analysis including 1D- and 2D-NMR spectroscopy and mass spectrometry. The antidiabetic effects of all iso...

journal_title：Fitoterapia

authors： Trinh BT,Quach TT,Bui DN,Staerk D,Nguyen LD,Jäger AK

更新日期：2017-04-01 00:00:00

abstract：:The objective of this study was to evaluate potential hepatoprotective capabilities of quercetin in relation to its modulation of the HO-1 and NOS-2 activities in an experimental model of fulminant liver failure. Liver insult was induced by in vivo administration of D-galactosamine (d-GalN, 400 mg/kg, i.p.) and lipopo...

journal_title：Fitoterapia

authors： Lekić N,Canová NK,Hořínek A,Farghali H

更新日期：2013-06-01 00:00:00

abstract：:Thirty-five crude extracts from 11 Panamanian plants, distributed in 10 genera and five families, were evaluated for their in vitro cytotoxicity. Four extracts exhibited an inhibition of cellular growth at IC(50) values lower than 25 microg/ml which was considered a significant activity. ...

journal_title：Fitoterapia

authors： Calderón AI,Terreaux C,Gupta MP,Hostettmann K

更新日期：2003-06-01 00:00:00

abstract：:A phytochemical investigation of the chloroform leaf extract of Alchornea latifolia has been undertaken. Along with the triterpenoids taraxerone, friedelin, epifriedelinol, and taraxerol, the plant also contains seco-3,4-friedelin (dihydroputranjivic acid) (1) and seco-3,4-taraxerone (2). These A-ring-opened triterpen...

journal_title：Fitoterapia

authors： Setzer WN,Shen X,Bates RB,Burns JR,McClure KJ,Zhang P,Moriarity DM,Lawton RO

更新日期：2000-04-01 00:00:00

abstract：:Seven compounds were isolated from the roots of Eurycoma longifolia, and characterized by comprehensive analysis of 1D and 2D NMR experiments along with single crystal X-ray diffraction. Among them, four new quassinoids were identified and three of them were diastereomers for each other. Compounds 1-7 were evaluated f...

journal_title：Fitoterapia

authors： Meng D,Li X,Han L,Zhang L,An W,Li X

更新日期：2014-01-01 00:00:00

abstract：:Natural products have been investigated as potential candidates of novel therapeutics and play a crucial role in advanced medicinal drugs. Natural resources, including local medicinal plants (especially folk medicinal plants), animals, bacteria, and fungi have been used for more than a century, and are precious gifts ...

journal_title：Fitoterapia

authors： Wang X,Yamauchi K,Mitsunaga T

更新日期：2020-04-01 00:00:00

abstract：:Chemical and biocatalytic synthesis of seven previously undescribed marchantin A ester derivatives has been presented. Chemical synthesis afforded three peresterified bisbibenzyl products (TE1-TE3), while enzymatic method, using lipase, produced regioselective monoester derivatives (ME1-ME4). The antiproliferative act...

journal_title：Fitoterapia

authors： Novakovic M,Simić S,Koračak L,Zlatović M,Ilic-Tomic T,Asakawa Y,Nikodinovic-Runic J,Opsenica I

更新日期：2020-04-01 00:00:00

abstract：:Two prenylated isoflavanones (1) and (2) were isolated from the stem bark of Lespedeza bicolor along with the known compounds ethyl caffeate, caffeic acid, protocatechuic acid, betulinic acid, betulin, beta-sitosterol and from the stem heartwood daidzein and isoliquiritigenin. ...

journal_title：Fitoterapia

authors： Maximov OB,Kulesh NI,Stepanenko LS,Dmitrenok PS

更新日期：2004-01-01 00:00:00

abstract：:Seven new lignans, cleistonkinins A- E (1-5), cleistonkisides A and B (6-7) were isolated from the fruits of Cleistanthus tonkinensis (Euphorbiaceae), together with five known aryltetralin lignans, cleisindoside B (8), cleistantoxin (9), cleisindoside D (10), neocleistantoxin (11) and polygamain (12). Their structures...

journal_title：Fitoterapia

authors： Nguyen LH,Vu VN,Phi Thi D,Tran VH,Litaudon M,Roussi F,Nguyen VH,Chau VM,Doan Thi Mai H,Pham VC

更新日期：2020-01-01 00:00:00

abstract：:Ethanolic extract of Rungia repens aerials parts (300 and 600 mg/kg p.o) showed diuretic activity in rats. The acute toxicity, orally evaluated in mice, was found to be higher than 3000 mg/kg. ...

journal_title：Fitoterapia

authors： Basu SK,Arivukkarasu R

更新日期：2006-02-01 00:00:00

abstract：:The irritant potential of total methanolic extract and five triterpenoids newly isolated from the leaves of Ficus carica investigated by open mouse ear assay. Total methanolic extract, calotropenyl acetate, methyl maslinate and lupeol acetate showed potent and persistent irritant effects. ...

journal_title：Fitoterapia

authors： Saeed MA,Sabir AW

更新日期：2002-08-01 00:00:00

abstract：:Supercritical CO(2) fluid extraction (SFE-CO(2)) was used to extract the sapogenins after acid hydrolysis from Smilax china tubers. The influence of extraction variables, such as modifier, pressure, temperature and extraction time, were studied. SFE-CO(2) was found to produce higher yield than conventional solvent ext...

journal_title：Fitoterapia

authors： Shu XS,Gao ZH,Yang XL

更新日期：2004-12-01 00:00:00

abstract：:The estrogenic activity of a polyphenolic extract of the leaves of Epimedium brevicornum and five fractions obtained by solid-phase extraction were investigated using estrogen-responsive bioassays, a yeast cell assay and the Ishikawa Var-I assay. The extract was found to exhibit significant estrogenic activity in both...

journal_title：Fitoterapia

authors： De Naeyer A,Pocock V,Milligan S,De Keukeleire D

更新日期：2005-01-01 00:00:00

abstract：:Five new guaiane-type sesquiterpenoids were obtained from the roots of Daphne genkwa. Their gross structures were established by extensive spectroscopic analyses. Attempts on the assignment of the relative configurations were unsuccessful when based on the NOESY correlations. Therefore, NMR chemical shift calculations...

journal_title：Fitoterapia

authors： Wang J,Ren Q,Zhang YY,Guo R,Lin B,Huang XX,Song SJ

更新日期：2019-10-01 00:00:00