May 2013
Enhancement of the immune responses to ovalbumin in mice by oral administration of the extract from Radix cyathulae (RC)
This study was designed to evaluate the effects of oral administration of the extract from theRadix cyathula (RC) on the immune responses in mice immunized with ovalbumin (OVA). Forty-two Institute of Cancer Research (ICR) mice were randomly divided into six groups with seven animals in each group, and orally administered daily for 4 days at a dose equivalent to 0, 0.05, 0.1, 0.2, 0.4 and 0.8 g of the RC extract,...
May 2013
Compositions and the in vitro antimicrobial activities of the essential oils and extracts of two Achillea species from Iran
Gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analysis of the isolated essential oils obtained by steam distillation from the flowers, leaves, and stems of two plants, known to have medicinal activity, Achillea pachycephala Rech.f. andAchillea santolina L., collected from Khorasan, Northeast of Iran, as well as constituents obtained by solvent (hexane-ether and methanol)...
May 2013
Antioxidant, cytotoxic and apoptotic activities of extracts from medicinal plant Euphorbia platyphyllos L.
In the present study, potential antioxidant activities of crude extracts (diethyl ether, petroleum ether, ethyl acetate, methanol and water (infusion and decoction)) fromEuphorbia platyphyllos L. (Euphorbiaceae) were evaluated for 1,1-diphenyl-2-picryl-hydrazyl (DPPH) scavenging, cytotoxic, DNA damaging and apoptotic activities of the extracts on MCF-7 breast cancer cells of extracts by DPPH assay, trypan blue...
May 2013
Effect of methanol extract of Dicranopteris linearis leaves against paracetamol- and carbon tetrachloride (CCl4)-induced liver toxicity in rats
The present study aimed to determine the hepatoprotective activity of methanol extract ofDicranopteris linearis leaves (MEDL) using two models of liver injury in rats. Rats (n = 6) received 10% DMSO (negative control), 200 mg/kg silymarin (positive control) or MEDL (50, 250, and 500 mg/kg) orally once daily for 7 days and 3 hours after the last administration of the test solutions, they were subjected to the...
May 2013
Hypoglycemic and hypolipidemic effects of Cephalotaxus sinensis in STZ-induced diabetic rats
Hypoglycemic and hypolipidemic activities of Cephalotaxus sinensis extracts were studiedin streptozotocin-induced diabetic rats. The animals were divided into normal control, diabetic control, diabetic treated and control treated group (n = 6). Effect of oral administration of 80% aqueous ethanolic extract (aq.EE), water extract (WtE), ethyl acetate fraction (EaF), and butanol fraction (BtF) of C....
May 2013
Phytochemical constituents, antimicrobial and antioxidant potentials of tree spinach [Cnidoscolus aconitifolius (Miller) I. M. Johnston]
Ethanol extracts of leaves, stem and root of Cnidoscolus aconitifolius (Miller) I. M. Johnston, were screened for their phytochemical constituents and also investigated for their antimicrobial and antioxidant activities. Phytochemical screening revealed the presence of secondary metabolites of both preventive and curative importance in medicine. All the plant parts (leaf, stem and root) showed activity...
May 2013
Bio-guided isolation of antimicrobial compounds from Rapanea ferruginea and its cytotoxic and genotoxic potential
This study describes the bio-guided isolation of compounds with antimicrobial activity fromRapanea ferruginea, as well as the cytotoxic and genotoxic potential. The extracts of stem bark, branches, leaves, fruits and the compounds were evaluated in vitro against bacteria and yeast strains, and were submitted to phytochemical screening and bioautography to guide the isolation of active compounds. The toxic...
May 2013
Antioxidant and antibacterial activity of leaf, bark, pulp and seed extracts of seabuckthorn (Hippophae salicifolia D. Don) of Sikkim Himalayas
The present study was conducted to evaluate the antioxidant and antibacterial activities of methanol, acetone, chloroform and petroleum ether extracts of leaf, bark, pulp and seed of Seabuckthorn (Hippophae salicifolia D.Don) species found in Sikkim Himalayas. Antioxidant activity was measured using total phenolic content, reducing power and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assays. The...
May 2013
Effect of Cinnamon zeylanicum essence and distillate on the clotting time
A plant called medicinal herb is one in which some special materials are constructed and stored in its configuration which are called effective materials. Active materials are made during a chain of special and complex biochemical processes which are known as second metabolites. The scientific name of Cinnamon is Cinnamomum zeylanicum from Lauraceaeis. Physiological effect of Cinnamon is related to...
May 2013
Essential oil compounds of three Centaurea L. taxa from Turkey and their chemotaxonomy
The essential oil of three Centaurea L. taxa from Turkey (Centaurea iberica Trev. ex Spreng.- Centaurea solstitialis L. subsp. solstitialis and Centaurea virgata Lam.) which were collected in the same habitat, have been studied. As a result, thirty nine, forty and forty two components were identified representing 90.8, 91.6 and 92.5% of the oil,...
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