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  • In vivo/in vitro studies of the effects of the type II arabinogalactan isolated from Maytenus ilicifolia Mart. ex Reissek on the gastrointestinal tract of rats.

In vivo/in vitro studies of the effects of the type II arabinogalactan isolated from Maytenus ilicifolia Mart. ex Reissek on the gastrointestinal tract of rats.

Zeitschrift fur Naturforschung. C, Journal of biosciences (2012-09-29)
Cristiane H Baggio, Cristina S Freitas, André Twardowschy, Ana Cristina dos Santosa, Bárbara Mayer, Francine B Potrich, Thales R Cipriani, Guilherme L Sassaki, Marcello Iacomini, Maria Consuelo A Marques, Sonia Mesia-Velaa
ABSTRACT

Type II arabinogalactan (AG) is a polysaccharide found in Maytenus ilicifolia (Celastraceae), a plant reputed as gastroprotective. Oral and intraperitoneal administration of the AG protected rats from gastric ulcers induced by ethanol. No alteration of mechanisms related to acid gastric secretion and gastrointestinal motility were observed. In vitro, the AG showed a potent scavenging activity against the radical of DPPH (2,2-diphenyl-1-picrylhydrazyl) with an IC50 value of 9.3 microM. However, the mechanism of the gastroprotective action remains to be identified.

MATERIALS
Product Number
Brand
Product Description

Supelco
(+)-Arabinogalactan, for use with Total Dietary Fiber Control Kit, TDF-C10, from larch wood
Sigma-Aldrich
(+)-Arabinogalactan, ≥80% (HPLC), from larch wood