Showing papers in "Fitoterapia in 2000"

TL;DR: The phytochemistry of other members of the Lantana genus is included to allow an evaluation of the potential for utilisation of the large biomass of L. camara available.

TL;DR: Bioassay guided fractionation of the acetone extract of Feronia limonia dried leaves afforded a potent mosquito larvicide, identified as n-hexadecanoic acid and found to be effective against fourth instar larvae of Culex quinquefasciatus, Anopheles stephensi and Aedes aegypti.

TL;DR: The antibacterial activity-guided fractionation of the dichloromethane extract of leaves of Helichrysum pedunculatum resulted in the isolation of linoleic and oleic acids, and a synergistic effect between the two fatty acids was observed against Staphylococcus aureus and Micrococcus kristinae.

TL;DR: The extract, quercetin, rutin and apigenin caused a decrease in the percentage of seed germination and root and epicotyl growth and the allelopathic effect was tested against Raphanus sativus seed Germination.

TL;DR: The data demonstrate that in experimental conditions, the two flavonoids were equally able to reduce locomotor activity when injected in rats at a minimal effective dose of 25 mg/kg, however, while chrysin exhibited a clear anxiolytic effect when injected at the dose of 1 mg/ kg, apigenin failed to exert this activity.

TL;DR: Ginseng is the root of the perennial herbs of Panax quinquefolium and Panax ginseng which contain a series of tetracyclic triterpenoid saponins (ginsenosides) as active ingredients, considered a tonic or adaptogenic that enhances physical performance, promotes vitality and increases resistance to stress and ageing.

TL;DR: An ethnobotanical survey of the medicinal plants used by the local population of the Ksar Lakbir district (NW Morocco) was conducted and quantitative ethnopharmacological data (medicinal plant knowledge and use indices) were evaluated.

TL;DR: Fractionation over Sephadex LH-20 resin and analysis of the isolated fractions by gel permeation chromatography (GPC) and electrospray mass spectrometry (ESI-MS) led to the complete characterization of the proanthocyanidin constituents of Leucoselect.

TL;DR: Knowledge of the correlation existing between the marker compounds and other ingredients that occur in plants is a necessary requirement for ensuring the efficacy and quality of the herbal medicines.

TL;DR: The effects of some medicinal plants (i.e. Fucus vesiculosus, Citrus aurantium) claimed to be useful in the treatment of obesity are reviewed.

TL;DR: The folk medicinal plants from Sile (Turkey) have been mostly used for the treatment of eczema, stomach and kidney ailments, asthma, cough, diabetes, and wounds.

TL;DR: Pretreatment of animals with berberine prevented the acetaminophen- or CCl4-induced rise in serum levels of alkaline phosphatase (ALP) and aminotransaminases (AST and ALT), suggestive of hepatoprotection.

TL;DR: The water and ethanol extracts of stems of Tinospora cordifolia and T. sinensis inhibit immunosuppression produced by cyclophosphamide and are found to be more potent than the other extracts.

TL;DR: Results suggest that a relatively low polarity is one of the molecular requirements for the antifungal activity of sesquiterpene lactones.

TL;DR: The essential oil of Lantana camara, tested against seven bacteria and eight fungi, showed a wide spectrum of antibacterial and antifungal activities.

TL;DR: The hypoglycaemic effect of the methanolic extract of Ocimum gratissimum leaves was evaluated in normal and alloxan-induced diabetic rats and significantly reduced plasma levels.

TL;DR: (+)-Usnic acid, isolated from the lichen Roccella montagnei, showed a dose-dependent anti-inflammatory activity when tested on rats, employing acute and chronic models.

TL;DR: Three ent-kaurene diterpenoids, not previously described as constituents of propolis, were isolated from a sample collected by Brazilian native bees Melipona quadrifasciata anthidioides and displayed moderate antibacterial activity.

TL;DR: Bryophyllum pinnatum leaf 60% methanolic extract was found to inhibit the growth of five out of eight bacteria used, at a concentration of 25 mg/ml.

TL;DR: An Indian chemotype, with a high level of ethyl cinnamate, presents, in vitro, an interesting spectrum of antifungal properties.

TL;DR: Five caffeoylquinic acids and esters, including a new compound, 3,5-dicaffeoyl Quinic acid butyl ester, were isolated from the flowers and buds of Lonicera japonica and their structures were determined by NMR spectral analysis.

TL;DR: The methanolic extract of Solanum torvum fruit showed a wide spectrum of antimicrobial activities against human and animal clinical isolates.

TL;DR: Psoralea corylifolia seed extract has been found to stimulate the immune system in mice and inhibit EAC ascitic tumour growth and stimulate natural killer cell activity and antibody complement-mediated cytotoxicity during tumour development.

TL;DR: It appears that the constitutive isoforms of both enzymes (cyclooxygenase-1 and constitutive nitric oxide synthase) have a regulatory-physiological role, whereas the inducible isoforms (cycleoxygenases-2 and inducibles) are involved in inflammation.

TL;DR: The antibacterial activity of xanthorrhizol, isolated from the methanol extract of Curcuma xanth orrhiza roots, was evaluated against oral microorganisms in comparison with chlorhexidine.

TL;DR: A new antiplasmodial coumarin, 5,7-dimethoxy-8-(3'-hydroxy-3'methyl-1'-butene)-coumarin has been isolated from the roots of Toddalia asiatica, supporting the traditional use of this plant for the treatment of malaria.

TL;DR: Five germacrane- and guaiane-type sesquiterpene lactones, including two previously described taraxinic acid derivatives, were isolated from the roots of Taraxacum officinale, together with benzyl glucoside, diHydroconiferin, syringin and dihydrosyringin.

TL;DR: The formation of hepatic DNA adducts in vivo and in vitro by metabolites of ES has been demonstrated and the carcinogenicity of ES is shown.

TL;DR: Nine commercial brands of grapefruit Juice were analyzed for their flavonoid content by HPLC to determine if significant brand-to-brand variance in grapefruit juice flavonoids content exists and naringin was found to be the major flavonoidal followed by narirutin and hesperidin.