Antioxidant, cytotoxic and alpha-glucosidase inhibition activities from the Mexican berry "Anacahuita" (Cordia boissieri).

This study describes the total phenolic and flavonoid content as well as cytotoxic, alpha-glucosidase inhibition and antiradical/antioxidant potential of extracts obtained from the edible fruits of Cordia boissieri, which is widely distributed throughout northeastern Mexico. Phenolic and flavonoid content were evaluated by means of the Folin-Ciocalteu method and aluminum chloride colorimetric assay respectively. The antiradical/antioxidant activity was determined by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging and Trolox Equivalent Antioxidant Capacity (TEAC) assays.

Antioxidant comparative effects of two grape pomace Mexican extracts from vineyards on erythrocytes.

Maceration and Soxhlet methods were used to obtain methanol extracts from a Mexican grape (Ruby Cabernet) pomace and the biological activity and phenolic profiles were compared. The antioxidant capacity was used to evaluate the mechanism of action, using a physiological model (erythrocytes) of damage induced by AAPH-generated free radicals. The extract obtained by maceration presented a total phenolic content twice the one obtained using the Soxhlet method.

Biological activities of Morus celtidifolia leaf extracts.

The aims of this research were to examine the antibacterial, cytotoxic and antiradical/antioxidant activities of the organic extracts obtained from the leaves of the medicinal plant Morus celtidifolia (Family: Moraceae). To evaluate its antimicrobial properties, M. celtidifolia was tested against the bacteria of medical importance: Bacillus subtilis, Staphyloccocus aureus, Enterococcus faecalis, Escherichia coli, Enterobacter cloacae and Enterobacter aerogenes.

In vitro amoebicidal activity of borage (Borago officinalis) extract on Entamoeba histolytica.

Borage (Borago officinalis) is a plant with nutritional value that is also used in traditional medicine to treat gastrointestinal disease. This study investigated the amoebicidal activity of a methanol extract of borage. The 50% inhibitory concentration (IC₅₀) of the extract for Entamoeba histolytica was 33 μg/mL.

Hypocholesterolemic activity from the leaf extracts of Cnidoscolus chayamansa.

The aim of this study was to determine the hypocholesterolemic activity of Cnidoscolus chayamansa. In an in vivo model, high-cholesterol diet administered to mice Balb/c induced hypercholesterolemia. Three extracts from Cnidoscolus chayamansa (ethanol, methanol and an aqueous extract) were tested on hypercholesterolemic mice.

Antiproliferative effect from the Mexican poleo (Hedeoma drummondii).

Hedeoma drummondii (poleo) has been used by Mexicans to prepare a tea for its pleasant taste. The methanolic extract, polar fractions, and major antioxidant compounds of the Mexican herbal tea obtained from aerial parts of H. drummondii ("poleo") showed antiproliferative effects against the cancer cell lines MCF-7 (human breast) and HeLa (human cervix).