Four new lignans from the stems of Kadsura heteroclita.

abstract：:Volatile constituents of the essential oils from leaves and inflorescences of Solidago chilensis Meyen were analyzed by GC-FID, GC-MS and 13C-NMR and thirty-six different compounds were identified. Pumiloxide, an unusual labdane diterpene, was found to be one of the major components in both oils (15.3 % and 12.3 %, re...

journal_title：Planta medica

authors： Vila R,Mundina M,Tomi F,Furlán R,Zacchino S,Casanova J,Cañigueral S

更新日期：2002-02-01 00:00:00

abstract：:A methanolic extract of Commelina communis showed potent inhibitory activity against alpha-glucosidase. One pyrrolidine alkaloid, 2,5-dihydroxymethyl-3,4-dihydroxypyrrolidine (DMDP, 1) and four piperidine alkaloids, 1-deoxymannojirimycin (2), 1-deoxynojirimycin (3), alpha-homonojirimycin (4) and 7-O-beta-D-glucopyrano...

journal_title：Planta medica

authors： Kim HS,Kim YH,Hong YS,Paek NS,Lee HS,Kim TH,Kim KW,Lee JJ

更新日期：1999-06-01 00:00:00

abstract：:The leaves of Echinodorus grandiflorus are traditionally used in Brazil to treat several inflammatory conditions, including arthritis. This study aimed to investigate the antiarthritis activity of the 70% ethanol extract of E. grandiflorus leaves and a standardized flavonoid-rich fraction in an antigen-induced arthrit...

journal_title：Planta medica

authors： Garcia Ede F,de Oliveira MA,Candido LC,Coelho FM,Costa VV,Queiroz-Junior CM,Boff D,Amaral FA,de Souza Dda G,Teixeira MM,Braga FC

更新日期：2016-03-01 00:00:00

abstract：:The methanolic extract of the fruits of Torilis japonica showed a potent inhibition against 5 alpha-reductase activity in vitro. Bioassay-guided fractionation of the methanol extract of the fruits followed by repeated silica gel chromatography led to the isolation of an active principle and its structure was identifie...

journal_title：Planta medica

authors： Park WS,Son ED,Nam GW,Kim SH,Noh MS,Lee BG,Jang IS,Kim SE,Lee JJ,Lee CH

更新日期：2003-05-01 00:00:00

abstract：:Phytochemical investigation of the ethyl acetate extract from the aerial parts of Eryngium triquetrum Vahl resulted in the isolation of new polyacetylenes, triquetridiol (6) and trans-epoxy-triquetrol (7a/7b, diastereomeric mixture), and the lignan demethoxy carolignan Z (8a/8b, erythro/threo pair), together with a se...

journal_title：Planta medica

authors： Bouzergoune F,Ciavatta ML,Bitam F,Carbone M,Aberkane MC,Gavagnin M

更新日期：2016-11-01 00:00:00

abstract：:The inhibition of aflatoxin B1 (AFB1) metabolism by a water extract of the root of Scutellaria baicalensis and its flavonoids was examined in liver microsomes. AFB1 is known to be metabolized to aflatoxin M1 (AFM1), aflatoxin Q1 (AFQ1), and AFB1-8,9-epoxide (AFBO). The water extract potently inhibited the production o...

journal_title：Planta medica

authors： Kim BR,Kim DH,Park R,Kwon KB,Ryu DG,Kim YC,Kim NY,Jeong S,Kang BK,Kim KS

更新日期：2001-07-01 00:00:00

abstract：:The present study aimed to investigate standardized ethanol extracts of fruit and leaves of Piper sarmentosum for their in vivo antioxidant activity in rats using a CCl (4)-induced oxidative stress model. The standardization was based on the quantification of the markers pellitorine, sarmentine and sarmentosine by hig...

journal_title：Planta medica

authors： Hussain K,Ismail Z,Sadikun A,Ibrahim P

更新日期：2010-03-01 00:00:00

abstract：:The present study is aimed at evaluating the effects of luteolin on the scratching behavior associated with an allergic cutaneous reaction in mice. Elicitation of passive cutaneous anaphylaxis, and intradermal injections of compound 48/80, histamine or serotonin induced scratching behavior in ICR mice. Models of irrit...

journal_title：Planta medica

authors： Baolin L,Weiwei W,Ning T

更新日期：2005-05-01 00:00:00

abstract：:The mechanism of action, leakage of cytochrome c from mitochondria into cytosol, for the antineoplastic compound glyfoline was examined. Additionally, our current studies revealed that glyfoline induced apoptotic changes and arrested cell cycle procession at the G2/M phase in nasopharyngeal carcinoma (NPC). A reverse ...

journal_title：Planta medica

authors： Su TL,Huang HM,Wang CK,Wu HC,Lin CT

更新日期：2005-01-01 00:00:00

abstract：:Transformed root cultures of ipecac (Cephaelis ipecacuanha A. Richard), one of the recalcitrant woody plant species for Agrobacterium-mediated transformation, were established by co-culturing of in vitro petiole segments with Agrobacterium rhizogenes ATCC 15 834. Southern blot analysis of the established roots reveale...

journal_title：Planta medica

authors： Yoshimatsu K,Shimomura K,Yamazaki M,Saito K,Kiuchi F

更新日期：2003-11-01 00:00:00

abstract：:A crude polysaccharide fraction (DAP-1) was prepared from roots of Dipsacus asperoides by hot water extraction and EtOH precipitation, and tested for anti-complementary activity, mitogenic activity of lymphocytes, and effects on acid phosphatase and phagocytic activities of macrophages. DAP-1 showed not only anti-comp...

journal_title：Planta medica

authors： Zhang Y,Kiyohara H,Matsumoto T,Yamada H

更新日期：1997-10-01 00:00:00

abstract：:The in vitro antiprotozoal activity of 18 natural flavonoids has been determined against Entamoeba histolytica and Giardia lamblia. (-)-Epicatechin, (-)-epigallocatechin and kaempferol were the most active flavonoids against both protozoa. ...

journal_title：Planta medica

authors： Calzada F,Meckes M,Cedillo-Rivera R

更新日期：1999-02-01 00:00:00

abstract：:Electrospray ionization mass spectrometry (ESI-MS) combined with multiple tandem mass spectrometry (MS (n)) has been applied for simultaneously determining lipo-alkaloids from the aconite tubers. ESI-MS can give a very good mass separation for lipo-alkaloid mixture and MS (n) can provide structural information. Accord...

journal_title：Planta medica

authors： Sun W,Song F,Cui M,Liu S

更新日期：1999-06-01 00:00:00

abstract：:Three new guaiane-type sesquiterpene lactones (1-3), together with nine related sesquiterpenes (4-12), were isolated from the whole extract of Ixeris dentata (Asteraceae). The chemical structures of isolates 1-12 were established by spectroscopic analyses as 3 β,8 β-dihydroxy-guaia-10(14)-en-1 α,4 α,5 α,6 β,7 α,11 βH-...

journal_title：Planta medica

authors： Cha MR,Choi YH,Choi CW,Yoo DS,Kim YS,Choi SU,Kim YH,Ryu SY

更新日期：2011-03-01 00:00:00

abstract：:From the water extract of the roots of Urtica dioica (stinging nettle) a polysaccharide fraction was isolated which revealed activity in the carrageenan rat paw edema model and lymphocyte transformation test. Ion exchange chromatography and gel filtration of this fraction afforded 4 different polysaccharides, one of w...

journal_title：Planta medica

authors： Wagner H,Willer F,Kreher B

更新日期：1989-10-01 00:00:00

abstract：:Natural compounds have been the first historical source of antithrombotic compounds (heparin, vitamin K antagonists, streptokinase, urokinase); molecules extracted from plants or animals still provide some of the most original and promising approaches for the discovery of new drugs in this class. In this review, we wi...

journal_title：Planta medica

authors： Beretz A,Cazenave JP

更新日期：1991-10-01 00:00:00

abstract：:The 2-mono- and 2,13-bis-glutathionyl adducts of helenalin and the 2-monoglutathionyl adduct of 11 alpha,13-dihydrohelenalin acetate were previously shown to be formed by spontaneous Michael addition at physiological pH. In living cells, glutathione (GSH) conjugation of many types of electrophilic agents is catalysed ...

journal_title：Planta medica

authors： Schmidt TJ

更新日期：2000-03-01 00:00:00

abstract：:The inhibitory action of the major constituent of Sebastiania schottiana (Euphorbiaceae), 2-hydroxy-4,6-dimethoxyacetophenone (xanthoxyline) on contractions induced by agonists and electrical stimulation of smooth and cardiac muscle preparations was analysed. Xanthoxyline (30 to 300 microM) inhibited contractions of t...

journal_title：Planta medica

authors： Calixto JB,Miguel OG,Yunes RA,Rae GA

更新日期：1990-02-01 00:00:00

abstract：:A novel stilbene glucoside was isolated from the root bark of Morus alba L. (Moraceae), along with mulberroside A, cis-mulberroside A, oxyresveratrol. The structure of the novel stilbene glucoside was determined as oxyresveratrol 3'-O-beta-glucopyranoside. ...

journal_title：Planta medica

authors： Qiu F,Komatsu K,Kawasaki K,Saito K,Yao X,Kano Y

更新日期：1996-12-01 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

authors： Wang SF,Ju Y,Chen XG,Hu ZD

更新日期：2003-05-01 00:00:00

abstract：:The inhibition of butyrylcholinesterase activity in human serum by protoberberine, benzophenanthridine and aporphine alkaloids as well as four model compounds has been studied. The mechanism of the inhibition is discussed on the basis of the different types of interaction of these compounds with butyrylcholinesterase ...

journal_title：Planta medica

authors： Ulrichová J,Walterová D,Preininger V,Simánek V

更新日期：1983-07-01 00:00:00

abstract：:The aim of this study was to evaluate the effects of 7-epiclusianone (7-epi) on specific virulence attributes of Streptococcus mutans in vitro and on development of dental caries in vivo. 7-Epi was obtained and purified from fruits of Rheedia brasiliensis. We investigated its influence on surface-adsorbed glucosyltran...

journal_title：Planta medica

authors： Branco-de-Almeida LS,Murata RM,Franco EM,dos Santos MH,de Alencar SM,Koo H,Rosalen PL

更新日期：2011-01-01 00:00:00

abstract：:Orosunol and 8-demethylorosunol, two new 1-aryl-2,3-naphthalide lignans, have been isolated from Justicia flava root. Structures IV and V respectively have been proposed for them by spectral (UV, IR, PMR, (13)C NMR, and MS) and chemical evidence. ...

journal_title：Planta medica

authors： Olaniyi AA

更新日期：1982-03-01 00:00:00

abstract：:Hydroalcoholic extracts and pressed juice from Echinacea pallida were phytochemically characterised by HPLC-MS analyses. Ferulic and caffeic acid derivatives were identified as major constituents. All tested extracts and pressed juice from Echinacea pallida exhibited a low cytotoxic activity on monkey kidney cells in ...

journal_title：Planta medica

authors： Schneider S,Reichling J,Stintzing FC,Messerschmidt S,Meyer U,Schnitzler P

更新日期：2010-02-01 00:00:00

abstract：:In our ongoing research into anti-inflammatory compounds from Tanacetum microphyllum, four naturally occurring flavonoids (santin, ermanin, centaureidin and 5,3'-dihydroxy-4'-methoxy-7-methoxycarbonylflavonol) and one sesquiterpene lactone (hydroxyachillin) isolated from this plant, were evaluated as potential inhibit...

journal_title：Planta medica

authors： Abad MJ,Bermejo P,Alvarez M,Guerra JA,Silván AM,Villar AM

更新日期：2004-01-01 00:00:00

abstract：:Phytochemical analysis of the leaves of BOLDOA PURPURASCENS Cav. led to isolation of four flavone glycosides, three of which are new compounds. Their structures have been determined by mass spectrometry and by 1 D and 2 D NMR analysis, i. e., 4',5-dihydroxy-6,7-methylenedioxyflavonol 3- O-alpha- L-rhamnopyranosyl-(1--...

journal_title：Planta medica

authors： Mosquera DM,Kilonda A,Toppet S,Compernolle F,Dehaen W,François IE,Cammue BP,Apers S,Pieters L,Cuéllar AC

更新日期：2008-10-01 00:00:00

abstract：:Fresh Nagami kumquats (Fortunella margarita) were subjected to hydrodistillation using a Clevenger-type apparatus to obtain volatile oil. The chemical composition of the volatile oil was analyzed by GC-MS using Rtx-5 Sil MS and DB Wax columns. A total of 25 volatile compounds were identified by mass spectra, retention...

journal_title：Planta medica

authors： Jayaprakasha GK,Murthy KN,Demarais R,Patil BS

更新日期：2012-06-01 00:00:00

abstract：:From the roots of PICRORHIZA KURROOA a new iridoid glycoside, 6-feruloylcatalpol has been isolated, along with veronicoside and minecoside and two phenol glucosides, picein and androsin. ...

journal_title：Planta medica

authors： Stuppner H,Wagner H

更新日期：1989-10-01 00:00:00

abstract：:An allergenic protein from tatary buckwheat seeds, designated TBt, was purified by salting out, anion exchange chromatography and size exclusion chromatography (SEC). Analysis by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and SEC showed that the allergenic protein was composed of two subunits...

journal_title：Planta medica

authors： Zhang X,Cui X,Li Y,Wang Z

更新日期：2008-12-01 00:00:00

abstract：:Arctigenin is a phenylpropanoid dibenzylbutyrolactone lignan compound possessing antitumor, anti-inflammatory, anti-influenza, antioxidant, antibacterial, and hypoglycaemic activities. Our previous study demonstrated that arctigenin exerts neuroprotective effects both in vitro and in vivo in a Parkinson's disease mode...

journal_title：Planta medica

authors： Qi Y,Dou DQ,Jiang H,Zhang BB,Qin WY,Kang K,Zhang N,Jia D

更新日期：2017-01-01 00:00:00