Down-modulation of nitric oxide production in murine macrophages treated with crude plant extracts from the Brazilian Cerrado.
J Ethnopharmacol
; 99(1): 37-41, 2005 May 13.
Article
en En
| MEDLINE
| ID: mdl-15848017
ABSTRACT
Several plant species from the Cerrado biome in Brazil are popularly used as herbal medicines for its reputed analgesic, anti-acid, anti-microbial, anti-inflammatory and anti-tumoral properties, among others. It has been reported that some plant extracts interfere in the production of nitric oxide (NO), an important inflammatory mediator. In the present study, we investigated the effect of hexanic and ethanolic extracts from three plant species on NO production by LPS/IFN-gamma-activated J774 macrophages based on traditional use. The cytotoxic effect of the crude extracts was determined by the thiazolyl blue test (MTT) to measure cell viability. Serjania lethalis stem extracts and Cupania vernalis leaf extracts significantly inhibited NO production, while extracts from Casearia sylvestris var. lingua were inactive or showed low activity on NO production, or were very cytotoxic. The ethanolic stem bark and leaf extracts of Serjania lethalis and Cupania vernalis, respectively, almost completely inhibited the production of NO by J774 macrophages. It can be concluded that the selected extracts are potential sources of active compounds that might be used as anti-inflammatory agents.
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Bases de datos:
MEDLINE
Métodos Terapéuticos y Terapias MTCI:
Terapias_biologicas
/
Plantas_medicinales
Asunto principal:
Plantas Medicinales
/
Macrófagos
/
Óxido Nítrico
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J Ethnopharmacol
Año:
2005
Tipo del documento:
Article
País de afiliación:
Brasil