Antimicrobial prenylated acetophenones from berries of Harrisonia abyssinica.

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-me...

journal_title：Planta medica

authors： Vera N,Bardón A,Catalán CA,Gedris TE,Herz W

更新日期：2001-10-01 00:00:00

abstract：:We have examined the immunosuppressive effects of representative ginsenosides (Rb1, Rb2, Re and Rg1) from Panax ginseng C. A. Meyer on CD4+ and CD8+ lymphocyte proliferation. Ginsenosides differentially modulated lymphocyte proliferation induced by concanavalin A (Con A), lipopolysaccharide (LPS), phytohemaglutinin (P...

journal_title：Planta medica

authors： Cho JY,Kim AR,Yoo ES,Baik KU,Park MH

更新日期：2002-06-01 00:00:00

abstract：:The species Ageratina pichinchensis (Asteraceae) has been used for a long time in Mexican traditional medicine for the treatment of different skin conditions and injuries. In this study, the healing capacity of the plant extracts obtained was evaluated and, in order to understand the mechanism of healing, we also anal...

journal_title：Planta medica

authors： Romero-Cerecero O,Zamilpa-Álvarez A,Ramos-Mora A,Alonso-Cortés D,Jiménez-Ferrer JE,Huerta-Reyes ME,Tortoriello J

更新日期：2011-07-01 00:00:00

abstract：:This paper studies the effect of different concentrations of ethephon on the levels of the sesquiterpene, nootkatone, and of the flavanones, naringin and narirutin, in grapefruit fruits. The results show that nootkatone synthesis and/or accumulation was stimulated by all the concentrations of ethephon assayed, while t...

journal_title：Planta medica

authors： Puig DG,Pérez ML,Fuster MD,Ortuño A,Sabater F,Porras I,Lidón AG,Del Río JA

更新日期：1995-06-01 00:00:00

abstract：:Rhapontin was purified from a methanol extract from the roots of Rheum undulatum, and rhapontigenin was produced by an enzymatic transformation of rhapontin. Rats were fed a high-cholesterol diet to induce hyperlipidemia, followed by oral treatment with rhapontin or rhapontigenin (1-5 mg/kg/day). Rhapontin and rhapont...

journal_title：Planta medica

authors： Jo SP,Kim JK,Lim YH

更新日期：2014-08-01 00:00:00

abstract：:Both borneol and menthol are bioactive substances derived from Chinese herbal medicines. In order to understand the pharmacokinetics of borneol and menthol in Qingyan drop pills, a rapid, sensitive, and simple gas chromatographic (GC) method with flame ionization detection (FID) was developed for the simultaneous dete...

journal_title：Planta medica

authors： Xu X,Li Y,Hou J,Zhang S,Xu Y,Wang Y,Zhang Y,Liu C,He X

更新日期：2011-09-01 00:00:00

abstract：:From the leaves of BLUMEA ARFAKIANA Martelli (Asteraceae), used in traditional medicine in Papua New Guinea, besides stigmasterol and beta-eudesmol, four graniline esters ( 1-4) have been isolated. Furthermore, blumealactone C ( 5), deacetylblumealactone C ( 6), and deoxyblumealactone C ( 7) have been identified. ...

journal_title：Planta medica

authors： Rücker G,Paulini G,Sakulas H,Lawong B,Goeltenboth F

更新日期：1991-06-01 00:00:00

abstract：:Effects of passage of subculture and several culture conditions, nutritional, hormonal and light conditions on 3,4-dihydroxyphenylalanine (DOPA) content were examined in callus of STIZOLOBIUM HASSJOO P IPER and T RACY. The favourable conditions for DOPA accumulation were found to be suboptimal conditions for growth, i...

journal_title：Planta medica

authors： Obata-Sasamoto H,Komamine A

更新日期：1983-10-01 00:00:00

abstract：:The alkaloidal content of of the stem barks of Hernandia cordigera has been studied and compared to that of other Hernandia species. Main alkaloids are phenolic aporphines. ...

journal_title：Planta medica

authors： Lavault M,Debray MM,Bruneton J

更新日期：1981-05-01 00:00:00

abstract：:Strictosidine synthase was partially purified from Catharanthus roseus cell suspension cultures and immobilized on CNBr-activated Sepharose. The immobilized enzyme exhibits a thermostability increased 300 fold over that of the soluble enzyme and catalyses exclusively the formation of the 3alpha(S)-isomer, strictosidin...

journal_title：Planta medica

authors： Pfitzner U,Zenk MH

更新日期：1982-09-01 00:00:00

abstract：:A new compound kaempferol 3-O-alpha-L-(2"-E-p-coumaroyl)-rhamnopyranoside, as well as the known flavonoids, kaempferol 3-O-beta-D-(6"-E-p-coumaroyl)-glucopyranoside, kaempferol 3-O-alpha-L-(2",3"-di-E-p-coumaroyl)-rhamnopyranoside, and caffeic acid were obtained from the methanolic extract of Platanus orientalis L. bu...

journal_title：Planta medica

authors： Mitrokotsa D,Mitaku S,Demetzos C,Harvala C,Mentis A,Perez S,Kokkinopoulos D

更新日期：1993-12-01 00:00:00

abstract：:Ginkgetin, a biflavone isolated from Ginkgo biloba leaves, was previously reported as an inhibitor of group II phospholipase A2. In this study, ginkgetin was evaluated for in vivo antiarthritic and analgesic activities. Ginkgetin (10-20 mg/kg/day) strongly reduced arthritic inflammation in an animal model of rat adjuv...

journal_title：Planta medica

authors： Kim HK,Son KH,Chang HW,Kang SS,Kim HP

更新日期：1999-06-01 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

authors： Habtemariam S

更新日期：1997-02-01 00:00:00

abstract：:Positive inotropic effects induced by 6-benzylaminopurine (6-BAP), kinetin and zeatin were studied in rat atria. The potency order observed was 6-BAP > or = kinetin > zeatin. Suramin, a P2-purinoceptor antagonist, inhibited the positive effect of 6-BAP suggesting the involvement of P2-purinoceptors in the positive eff...

journal_title：Planta medica

authors： Froldi G,Gallo U,Ragazzi E,Caparrotta L

更新日期：1999-04-01 00:00:00

abstract：:The hypoglycaemic effect of orally administered extracts of leaves and roots of Coccinia indica has been reported earlier. The oral administration of the pectin isolated from the fruit of the above plant at a dose of 200 mg/100 g BW/day showed a significant hypoglycaemic action in normal rats. Pectins isolated from ma...

journal_title：Planta medica

authors： Kumar GP,Sudheesh S,Vijayalakshmi NR

更新日期：1993-08-01 00:00:00

abstract：:The nature of gene action for biomass yield and tropane alkaloid content was ascertained through diallel analysis in Egyptian henbane, HYOSCYAMUS MUTICUS L. Dominance variation was preponderant over additive genetic variance, dominance being in the overdominance range for both traits. On an overall basis, recessive al...

journal_title：Planta medica

authors： Misra HO,Sharma JR,Lal RK

更新日期：1992-02-01 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：:From the leaves of DIGITALIS LANATA Ehrh. two new Cardenolides have been found and structurally elucidated as Digoxigenin-3-O-beta- D-digitoxosido-beta- D-digitoxosido-beta- D-xyloside bei TLC and spectroscopic methods. ...

journal_title：Planta medica

authors： Krüger D,Wichtl M

更新日期：1984-06-01 00:00:00

abstract：:Two new anthraquinones have been isolated from the seeds of PEGANUM HARMALA Linn and the structures established as 3,6-dihydroxy-8-methoxy-2-methylanthraquinone (peganone; 1) and 8-hydroxy-7-methoxy-2-methylanthraquinone (peganone; 2) by spectral correlations and chemical evidences. ...

journal_title：Planta medica

authors： Pitre S,Srivastava SK

更新日期：1987-02-01 00:00:00

abstract：:Several synthetic aromatase inhibitors are currently in clinical use for the treatment of postmenopausal women with hormone-receptor positive breast cancer. However, these treatments may lead to untoward side effects and so the search for new aromatase inhibitors continues, especially those for which the activity is p...

journal_title：Planta medica

authors： Balunas MJ,Kinghorn AD

更新日期：2010-08-01 00:00:00

abstract：:Bioassay-guided isolation of two new compounds, 3,4-methylenedioxy-3'-O-methyl-4'-O-glucoside ellagic acid (1) and the pteleoellagic acid derivative (2), from the stem bark of Pteleopsis hylodendron is reported along with 3,4-methylenedioxy-3'-O-methyl ellagic acid (3), 3,3'-di-O-methyl ellagic acid (4) and 3,3',4'-tr...

journal_title：Planta medica

authors： Atta-Ur-Rahman,Ngounou FN,Choudhary MI,Malik S,Makhmoor T,Nur-E-Alam M,Zareen S,Lontsi D,Ayafor JF,Sondengam BL

更新日期：2001-06-01 00:00:00

abstract：:Magnesium lithospermate B (MLB), sodium rosmarinate (SR), and magnesium lithospermate (ML) are biologically active components isolated from aqueous extracts of the Chinese medicine Danshen, the dried root and rhizome of SALVIA MILTIORRHIZA Bunge (Labiatae). These compounds share similar chemical structures of polyphen...

journal_title：Planta medica

authors： Chen L,Xuan LJ,Wang YP

更新日期：2009-12-01 00:00:00

abstract：:The aerial parts of JUNGIA SETERIANA afforded in addition to known compounds two pairs of isomeric C (17)-acetylenes which differ in the number of triple bonds and in the configuration of the 9,10-double bond. The structures and configurations followed from the UV and the (1)H-NMR spectra, especially from those of the...

journal_title：Planta medica

authors： Bohlmann F,Zdero C,King RM,Robinson H

更新日期：1984-04-01 00:00:00

abstract：:A method was developed to distinguish Vaccinium species based on leaf extracts using nuclear magnetic resonance spectroscopy. Reference spectra were measured on leaf extracts from several species, including lowbush blueberry (Vaccinium angustifolium), oval leaf huckleberry (Vaccinium ovalifolium), and cranberry (Vacci...

journal_title：Planta medica

authors： Markus MA,Ferrier J,Luchsinger SM,Yuk J,Cuerrier A,Balick MJ,Hicks JM,Killday KB,Kirby CW,Berrue F,Kerr RG,Knagge K,Gödecke T,Ramirez BE,Lankin DC,Pauli GF,Burton I,Karakach TK,Arnason JT,Colson KL

更新日期：2014-06-01 00:00:00

abstract：:A new acylated flavonoid, quercetin 3- O-alpha- L-(5"- O-acetyl)-arabinofuranoside ( 1), along with six known flavonoids ( 2 - 7) were isolated from the aerial parts of Rodgersia podophylla. The new flavonoid 1 exhibited 50.1 % hepatoprotective activity at a concentration of 100 microM, and the three known compounds 3...

journal_title：Planta medica

authors： Chin YW,Lim SW,Kim YC,Choi SZ,Lee KR,Kim J

更新日期：2004-06-01 00:00:00

abstract：:Seven coumarins were isolated from the aerial parts of Tordylium apulum; their structures were established by spectroscopic means. All compounds were tested in vitro for their cytotoxicity against two cell line systems. The antiproliferative effects for three of them were studied at the level of the cell cycle in asyn...

journal_title：Planta medica

authors： Kofinas C,Chinou I,Loukis A,Harvala C,Roussakis C,Maillard M,Hostettmann K

更新日期：1998-03-01 00:00:00

abstract：:We have previously reported that saiboku-to, an Oriental herbal remedy composed of a mixture of 10 different herbal extracts, possesses anti-histamine release effect on mast cells in rats. This effect may be due mainly to the extract of the bark of Magnolia obovata (M. obovata), a constituent herb of saiboku-to. In th...

journal_title：Planta medica

authors： Ikarashi Y,Yuzurihara M,Sakakibara I,Nakai Y,Hattori N,Maruyama Y

更新日期：2001-11-01 00:00:00

abstract：:Six new neo-clerodane diterpenoids (1: -6: ), scutebatas X - Z, A1-C1, along with twelve known ones (7: -18: ) were obtained via the phytochemical investigation of the aerial parts of Scutellaria barbata. Their structures were established by detailed spectroscopic analysis. The absolute configurations of 1: and 2: , a...

journal_title：Planta medica

authors： Yang GC,Hu JH,Li BL,Liu H,Wang JY,Sun LX

更新日期：2018-11-01 00:00:00

abstract：:The inhibitory effect of flavonoids and phenolic acids, which could be transformed from flavonoids by human intestinal microflora, on the growth of Helicobacter pylori (HP) was investigated. Ponciretin, hesperetin, naringenin and diosmetin were active against HP. Among them, ponciretin was the most potent and its MIC ...

journal_title：Planta medica

authors： Bae EA,Han MJ,Kim DH

更新日期：1999-06-01 00:00:00

abstract：:Fractionation of the aqueous extract of Derris scandens stems extract using tests for eicosanoid inhibition resulted in the isolation of three isoflavonoids, genistein, its 7- O-alpha-rhamno(1-->6)-beta-glucosyl glycoside, a new compound, and two known isoprenyl derivatives 3'-gamma,gamma-dimethylallylweighteone and s...

journal_title：Planta medica

authors： Laupattarakasem P,Houghton PJ,Hoult JR

更新日期：2004-06-01 00:00:00