Antibacterial activity of calozeyloxanthone isolated from Calophyllum species against vancomycin-resistant Enterococci (VRE) and synergism with antibiotics.

abstract：:The aerial parts of Guarea guidonia afforded three new tirucallane-type triterpenoids: 3,4-seco-tirucalla-4(28),8(9),24(25)-trien-7α,11α-dihydroxy-21,23-epoxy-3,11-olide, named guareolide (1: ), 3,4-seco-tirucalla-4(28),7(8),24(25)-trien-21-hydroxy-21,23-epoxy-3-oic acid, named guareoic acid A (2: ), and 3,4-seco-tiru...

journal_title：Planta medica

authors： Hernandez V,De Leo M,Cotugno R,Braca A,De Tommasi N,Severino L

更新日期：2018-07-01 00:00:00

abstract：:Shoot primordia, which were able to propagate vegetatively with a very high rate and to redifferentiate easily to new plants, were induced from shoot tips of Stevia rebaudiana Bertoni on Gamborg B5 medium containing 6-benzylaminopurine (BAP) and alpha-naphthaleneacetic acid (NAA) under light. The propagation of the sh...

journal_title：Planta medica

authors： Miyagawa H,Fujioka N,Kohda H,Yamasaki K,Taniguchi K,Tanaka R

更新日期：1986-08-01 00:00:00

abstract：:Barbaloin levels in the exudates from the leaves of 68 species of ALOE in the Kew collection have been determined by light absorption at 375 nm following separation by HPLC. The exudates from most species contained between 10-20% although a few concentrations of around 30% were found. The level in the leaf was usually...

journal_title：Planta medica

authors： Groom QJ,Reynolds T

更新日期：1987-08-01 00:00:00

abstract：:Protodioscin (NSC-698 796) is a furostanol saponin isolated from the rhizome of Dioscorea collettii var. hypoglauca (Dioscoreaceae), a Chinese herbal remedy for the treatment of cervical carcinoma, carcinoma of urinary bladder and renal tumor for centuries. To systematically evaluate its potential anticancer activity,...

journal_title：Planta medica

authors： Hu K,Yao X

更新日期：2002-04-01 00:00:00

abstract：:In this study we examined the ability of the furofuran lignan yangambin to influence the local and systemic responses induced by antigen or PAF in actively sensitized or normal rats. Given intraperitoneally 1 h before stimulation, yangambin inhibited the pleural neutrophil and eosinophil infiltration evoked by the i.p...

journal_title：Planta medica

authors： Serra MF,Diaz BL,Barreto EO,Pereira AP,Lima MC,Barbosa-Filho JM,Cordeiro RS,Martins MA,de Silva PM

更新日期：1997-06-01 00:00:00

abstract：:The ripe berries of Harrisonia abyssinica yielded two new prenylated acetophenones, namely 5-(ethan-1'''-one)-4,6-dihydroxy-7-(3'',3''-dimethylallyl)-2 S-(1' S-hydroxy-1',5'-dimethylhex-4'-enyl)-2,3-dihydrobenzofuran (1) and 5-(2'''-hydroxyethan-1'''-one)-4,6-dihydroxy-7-(3'',3''-dimethylallyl)-2 S-(1' S-hydroxy-1',5'...

journal_title：Planta medica

authors： Mayaka RK,Langat MK,Omolo JO,Cheplogoi PK

更新日期：2012-03-01 00:00:00

abstract：:The antisecretory activity of Guazuma ulmifolia bark was examined in rabbit distal colon mounted in an Ussing chamber. Chloride secretion was stimulated by cholera toxin and prostaglandin E2 (PGE2). Guazuma ulmifolia extract (GUE) completely inhibited cholera toxin-induced secretion if the extract was added to the muc...

journal_title：Planta medica

authors： Hör M,Rimpler H,Heinrich M

更新日期：1995-06-01 00:00:00

abstract：:From the roots of Aconitum crassicaule, two new diterpenoid alkaloids, crassicaulisine and crassicaulidine, were isolated. The structure of crassicaulisine, C (24)H (39)O (7)N, has been elucidated as 3 on the basis of chemical and spectral data, while the structure of crassicaulidine, C (24)H (39)O (8)N, has been show...

journal_title：Planta medica

authors： Fengpeng W,Qicheng F

更新日期：1983-01-01 00:00:00

abstract：:Eschsholzia californica Cham. is a traditional medicinal plant of the Indians used by the rural population of California for its analgesic and sedative properties. Our study on the aqueous extract shows that this plant reduced the behavioural parameters measured in a familiar environment test in mice (novelty preferen...

journal_title：Planta medica

authors： Rolland A,Fleurentin J,Lanhers MC,Younos C,Misslin R,Mortier F,Pelt JM

更新日期：1991-06-01 00:00:00

abstract：:Diabetes mellitus is one of the major health problems in Africa. The conventional oral synthetic antidiabetic drugs available to manage the disease are costly and not readily affordable to the majority of the affected population. Interestingly, the continent is endowed with a tremendous number of medicinal plants that...

journal_title：Planta medica

authors： Mohammed A,Ibrahim MA,Islam MS

更新日期：2014-03-01 00:00:00

abstract：:Guinea pigs were sensitized with trinitrophenylated liver macromolecular protein fraction (TNP-LP1) prepared by using sodium trinitrobenzenesulfonate of strong immunogenicity as the hapten and LP1 as the carrier protein. The administration of trinitrophenylated hepatocytes and lipopolysaccharide to these TNP-LP1-sensi...

journal_title：Planta medica

authors： Mizoguchi Y,Shin T,Kobayashi K,Morisawa S

更新日期：1991-02-01 00:00:00

abstract：:Two new 8-oxotetrahydroprotoberberine alkaloids, gusanlung A(1) and B(2), together with known isoquinoline alkaloids, berberine and jatrorrhizine, were isolated from the Chinese medicinal plant Acangelisia gusanlung H. S. Lo (Menispermaceae). Their structures were elucidated mainly by spectroscopic analysis. ...

journal_title：Planta medica

authors： Zhang JS,Chen ZL

更新日期：1991-10-01 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：: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：:Immune complex binding to macrophages was enhanced by treatment with an E. kansui extract. Systematic fractionation of the extract led to the characterization of 3-O-(2'E,4'Z-decadienoyl)- and 3-O-(2,3-dimethylbutyryl)-13- O-n-dodecanoyl-13-hydroxyingenol as the active principles. Immune complex binding to macrophages...

journal_title：Planta medica

authors： Matsumoto T,Cyong JC,Yamada H

更新日期：1992-06-01 00:00:00

abstract：:From the rhizome of Zingiber officinale L. (Zingiberaceae), four shogaols that protect IMR32 human neuroblastoma and normal human umbilical vein endothelial cells from beta-amyloid(25 - 35) insult at EC50 = 4.5 - 81 microM were isolated. The efficacy of cell protection from beta-amyloid(25 - 35) insult by these shogao...

journal_title：Planta medica

authors： Kim DS,Kim DS,Oppel MN

更新日期：2002-04-01 00:00:00

abstract：:Three pyrrolizidine alkaloids were isolated from Eupatorium portoricense and their structures elucidated by spectroscopic methods as (-)-viridifloryl-supinidine (amabiline), (-)-viridifloryl-heliotridine (echinatine), and C12- O-acetyl-(-)-viridifloryl-heliotridine (O(12)-acetylechinatine). ...

journal_title：Planta medica

authors： Wiedenfeld H,Guerrero R,Roeder E

更新日期：1995-08-01 00:00:00

abstract：:Kava (Piper methysticum) is an effective anxiolytic that has been withdrawn from various consumer markets in European countries due to concerns over its hepatotoxicity. It is plausible that the reported hepatotoxicity may be due in part to plant substitution, or an incorrect cultivar, or plant parts being used (such a...

journal_title：Planta medica

authors： Sarris J,Teschke R,Stough C,Scholey A,Schweitzer I

更新日期：2011-01-01 00:00:00

abstract：:Transient receptor potential channels and cannabinoid receptors are deputed to the regulation of sensory, homeostatic, and inflammatory events in the human organism. Therefore, their modulation promises to have relevant applications in important therapeutic areas such as inflammation, pain, and cancer. This review sum...

journal_title：Planta medica

authors： Rigano D,Formisano C,Taglialatela-Scafati O

更新日期：2016-06-01 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

authors： Bunel V,Antoine MH,Nortier J,Duez P,Stévigny C

更新日期：2015-03-01 00:00:00

abstract：:Four new phenanthroindolizidine alkaloids, tylophoridicines C-F, together with three known ones, R-(+)-deoxytylophorinidine, tylophorinine and tylophorinidine, were isolated from the roots of Tylophora atrofolliculata. The structures were determined on the basis of spectral evidence. These alkaloids exhibited cytotoxi...

journal_title：Planta medica

authors： Huang X,Gao S,Fan L,Yu S,Liang X

更新日期：2004-05-01 00:00:00

abstract：:The fruits of OSTEOPHLOEUM PLATYSPERMUM (Myristicaceae) contain sitosterol, eperu-8(20),13-dien-3alpha,15-diol, glyceryl laurodimyristate, glyceryl 1,3-lauromyristate and five neolignans: dihydroguaiaretic acid, hydroxyotobain, hydroxyoxootobain, guaiacin and otobaphenol. ...

journal_title：Planta medica

authors： Fo RB,de Carvalho MG,Gottlieb OR

更新日期：1984-02-01 00:00:00

abstract：:A novel trinorsesquiterpene (1), three new (2-4), and 10 known sesquiterpenes were isolated from the roots of Inula racemosa Hook. f. The structures and absolute configurations of the new sesquiterpenes were elucidated by extensive spectroscopic and computational methods. All compounds were evaluated for their inhibit...

journal_title：Planta medica

authors： Zhang SD,Qin JJ,Jin HZ,Yin YH,Li HL,Yang XW,Li X,Shan L,Zhang WD

更新日期：2012-01-01 00:00:00

abstract：:Silybum marianum Gaertn. (Milk thistle) has been used since ancient times for the relief of liver diseases characterized by intense oxidative stress such as inflammatory liver disease and cirrhosis. As oxidative stress by hyperglycemia is involved in micro- and macrovascular complications of type 2 diabetes, our aim w...

journal_title：Planta medica

authors： Palomino OM,Gouveia NM,Ramos S,Martín MA,Goya L

更新日期：2017-01-01 00:00:00

abstract：:Baicalein, berberine, curcumin and hesperidin are the major components derived from Scutellaria baicalensis, Coptis japonica, Curcuma longa and Poncirus trifoliata, respectively. These plants have been used for the treatment of diverse chronic inflammatory diseases including respiratory disease in oriental medicine an...

journal_title：Planta medica

authors： Lee CJ,Lee JH,Seok JH,Hur GM,Park YC,Seol IC,Kim YH

更新日期：2003-06-01 00:00:00

abstract：:We have isolated five furanocoumarins, byakangelicin, phellopterin, imperatorin, isoimperatorin, and oxypeucedanin methanolate, from the roots of Angelica dahurica (Umbelliferae) and prepared five semi-synthesized compounds by the partial reduction of each isolated furanocoumarin, and the effects of these compounds on...

journal_title：Planta medica

authors： Ban HS,Lim SS,Suzuki K,Jung SH,Lee S,Lee YS,Shin KH,Ohuchi K

更新日期：2003-05-01 00:00:00

abstract：:Metabolic fingerprinting techniques have received a lot of attention in recent years and the annual amount of publications in this field has increased significantly over the past decade. This increase in publications is due to improvements in the analytical performance, most notably in the field of NMR and MS analysis...

journal_title：Planta medica

authors： van der Kooy F,Maltese F,Choi YH,Kim HK,Verpoorte R

更新日期：2009-06-01 00:00:00

abstract：:Three new lycopodium alkaloids, 11alpha-hydroxyphlegmariurine B (2), 7alpha-hydroxyphlegmariurine B (3) and 7alpha,11alpha-dihydroxyphlegmariurine B (4) along with a known compound, phlegmariurine B (1), were isolated from the herb Huperzia serrata. The structures of the above compounds were elucidated based on spectr...

journal_title：Planta medica

authors： Tan CH,Wang BD,Jiang SH,Zhu DY

更新日期：2002-02-01 00:00:00

abstract：:Three new xanthones, 22,23-dihydroxydihydrogambogenic acid (1), 12-hydroxygambogefic acid A (2), and hanburixanthone (3), along with thirteen known compounds were isolated from the resin of Garcinia hanburyi. The structures of the new compounds were determined by detailed analysis of 1D and 2D NMR spectra and by compa...

journal_title：Planta medica

authors： Deng YX,Guo T,Shao ZY,Xie H,Pan SL

更新日期：2013-06-01 00:00:00

abstract：:Plumbagin, an active principle from Plumbaginaceous plants, produced a triphasic inotropic response (first positive, second negative, and third positive phases) in guinea-pig papillary muscle. The inotropic potency of plumbagin at the first positive phase was pD2 6.40, and the methylation of 5-hydroxy group of plumbag...

journal_title：Planta medica

authors： Itoigawa M,Takeya K,Furukawa H

更新日期：1991-08-01 00:00:00