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Observations placeholder

Antiulcerogenic action of ethanolic extract of the resin from Virola surinamensis Warb. (Myristicaceae)

Identifier

018286

Type of Spiritual Experience

Background

A description of the experience

J Ethnopharmacol. 2009 Mar 18;122(2):406-9. doi: 10.1016/j.jep.2008.12.023. Epub 2008 Dec 27.

Antiulcerogenic action of ethanolic extract of the resin from Virola surinamensis Warb. (Myristicaceae).

Hiruma-Lima CA1, Batista LM, de Almeida AB, de Pietro Magri L, dos Santos LC, Vilegas W, Souza Brito AR.

  • 1Physiology Department, Biosciences Institute, São Paulo State University-UNESP, c.p. 510, 18618-000, Botucatu, SP, Brazil. hiruma@ibb.unesp.br

Abstract

ETHNOPHARMACOLOGICAL RELEVANCE:

Virola surinamensis (Myristicaceae), popularly known as "mucuíba", "ucuuba" or "ucuúba do igapó" is a large tree that grows abundantly in "Várzea" forest and on river banks in the Brazilian states of Amazonas and Tocantins. The resin obtained by cuts on the stem bark is a reputed folk remedy in its natural form for the treatment of ulcer, gastritis, inflammation and cancer.

AIM OF THE STUDY:

The present work evaluated the pharmacological activity of the resin obtained from bark of V. surinamensis as antiulcerogenic in experimental in vivo model in order to observe whether its traditional use is justified.

MATERIALS AND METHODS:

The preventive action of ethanolic extract of V. surinamensis was evaluated in experimental in vivo models in rodents that simulated this disease in human gastric mucosa.

RESULTS:

Oral administration of acidified ethanol solution produced severe hemorrhagic lesions in glandular mucosa with ulcerative lesion of 50+/-11.5mm. In animals pretreated with V. surinamensis (500 mg/kg, p.o.) a significant inhibition of mucosal injury of 2.40+/-0.56 mm (95% inhibition) was detected. The V. surinamensis, at the same dose, also reduced significantly (p<0.05) the formation of gastric lesions induced by indomethacin (39%), stress (45%) and by pylorus ligature in mice (31%) when compared to animals treated with vehicle. The extract from V. surinamensis exerts gastroprotective action only when this extract contacts gastric mucosa (oral route) with increased pH values and reduced H+ concentration of gastric contents. The ethanolic extract of V. surinamensis resin was analyzed by TLC and spectrometric methods (NMR and ES-MS) and the main constituent of this extract was epicatechin.

CONCLUSIONS:

We suggest that the epicatechin present in V. surinamensis resin may be among active principles responsible for the antiulcer activity shown by the tested resin but their used suggest carefulness because toxicological symptoms mentioned by population.

PMID:

19162155

The source of the experience

PubMed

Concepts, symbols and science items

Concepts

Symbols

Science Items

Activities and commonsteps

Activities

Overloads

Heartburn and ulcers

Suppressions

Ucuuba

Commonsteps

References