Antibacterial and Antioxidant Activities of Hydroalcoholic and Phenolic Extracts from and Leaves.

Traditional Mexican medicine commonly uses infusions of spp. to treat insomnia, injuries, and infections. The antibacterial activities of and were evaluated for the first time against a panel of Gram-positive and Gram-negative bacteria that have implications for human health, including , , , , , and .

Antioxidant Active Phytochemicals in Explained by Aquaporin Mechanisms.

The antioxidant action of terngymnoside C () and hydroxytyrosol-1-glucoside (), isolated for the first time from the flower buds of , as well as katsumadin (), obtained from the seedless fruits, was evaluated using ABTS and HO- models. In silico docking analysis of , , and determined their affinity forces to the aquaporin monomers of the modeled protein 3 (AQP3) and human protein 7 (AQP7) channels that regulate the HO cell transport. The ABTS antiradical capacity of these compounds showed IC values of 22.

Effect of edaphoclimate on the resin glycoside profile of the ruderal Ipomoea parasitica (Convolvulaceae).

The latex of Ipomoea (Convolvulaceae) is a source of a special kind of acylsugars called resin glycosides, which are highly appreciated because of their biological activities (i.e. laxative, antimicrobial, cytotoxic etc.

Hydroalcoholic Extracts from Spent Substrate with Nematocidal Activity against Phytonematode and the Non-Target Species .

, an edible mushroom widely consumed worldwide, generates a by-product known as spent mushroom substrate (SMS). This material has demonstrated biological activity against agricultural crop pathogens. In this study, we evaluated the nematocidal effectiveness of hydroalcoholic extracts (T5, T2, AT5, and AT2) derived from SMS of against (J) of the phytonematode and assessed their potential toxicity towards the non-target nematode .

Anti-inflammatory and antihistaminic activity of triterpenoids isolated from Bursera cuneata (Schldl.) Engl.

Aim Of The Study: To isolate compounds with anti-inflammatory activity from Bursera cuneata by a bioassay-guided fractionation.

Materials And Methods: Three extracts of different polarities were elaborated by maceration. These extracts were assayed for their inhibitory effects on phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) induced edema in mice.

Methyl Jasmonate and Salicylic Acid Enhanced the Production of Ursolic and Oleanolic Acid in Callus Cultures of .

Background: The production of triterpenes from plants for pharmacological purposes varies in concentration, due to genetic and environmental factors. culture enables the control and increase of these bioactive molecules.

Objective: To evaluate the effect of plant growth regulators and elicitors in the induction of calli and the production of ursolic acid (UA) and oleanolic acid (OA) in .

Isolation of jacaranone, a sedative constituent extracted from the flowers of the Mexican tree Ternstroemia pringlei.

Ethnopharmacological Relevance: Ternstroemia pringlei represents one of the most widely employed and commercially exploited medicinal plant in Mexico, used popularly as a tranquilizer and for the treatment of insomnia.

Aim Of The Study: To investigate the sedative constituents of the plant through a bio-guided fractionation of extracts derived from calyx and fruits.

Materials And Methods: Crude extracts with different polarities (CHCl(3), AcOEt, MeOH, aqueous) were prepared and subjected to chromatographic fractionation, leading to the isolation of the sedative compound (1) from the MeOH crude extract.

Metabolic profiling of the Mexican anxiolytic and sedative plant Galphimia glauca using nuclear magnetic resonance spectroscopy and multivariate data analysis.

Galphimia glauca is popularly employed in Mexico for the treatment of central nervous system disorders. Pharmacological and phytochemical studies have resulted in the identification of the anxiolytic and sedative principle consisting of a mixture of nor-secofriedelanes, named the galphimine series (1 - 9). These active constituents were found in plants collected in the vicinity of a restricted region in Central Mexico, where this species is abundant.

Intrapilosins I-VII, pentasaccharides from the seeds of Ipomoea intrapilosa.

Purification of a CHCl3-soluble extract from seeds of the Mexican medicinal arborescent morning glory, Ipomoea intrapilosa, by means of preparative-scale recycling HPLC, yielded seven new resin glycosides, intrapilosins I-VII (1-7). Their structures were established through the interpretation of their NMR spectroscopic and FABMS data. All pentasaccharides were found to be macrolactones of the known operculinic acid A with different fatty acids esterifying the same positions: C-2 on the second rhamnose unit and C-3 and C-4 on the third rhamnose moiety.

Genetic transformation of Glaphimia glauca by Agrobacterium rhizogenes and the production of norfriedelanes.

Transformed root cultures of Galphimia glauca (Malpighiaceae) were established by infecting cotyledons and hypocotyls with Agrobacterium rhizogenes ATCC 15 834. Cotyledon-derived cell lines were grown in liquid B5 nutrient medium without phytohormones and have shown the typical hairy roots phenotype over two years of continuous subculturing. PCR analysis was used to confirm the integration of rol A and rol C genes into the plant genome.

Isolation of nor-secofriedelanes from the sedative extracts of Galphimia glauca.

Preparative-scale recycling HPLC was used for the complete resolution of a complex mixture of nor-secofriedelanes into five major peaks (I-V) from the sedative methanolic extracts prepared from the aerial parts of Galphimia glauca. Argentation chromatography was used to show peaks I, II, IV, and V to be mixtures of isomers around the E-ring double bond, represented by the endocyclic C-20, C-21 double-bond isomers, galphimines A (3), B (1), D (4), and E (2), and the C-20, C-29 exocyclic forms, galphimines F-I (5-8). Galphimine C (9), isolated from peak III, corresponded to the C-19, C-20 double-bond isomer of the previously known major sedative constituent galphimine B.