Studies on intestinal absorption of alkaloids in Coptis chinensis by in situ single-pass perfused rat intestinal model / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 3523-3527, 2011.
Artículo
en Chino
| WPRIM
| ID: wpr-251201
ABSTRACT
<p><b>OBJECTIVE</b>To study the absorption characteristics of alkaloids in Coptis chinensis in rat intestinal.</p><p><b>METHOD</b>In situ single-pass perfused rat intestinal model was used and the concentrations of berberine and palmatine were determined by HPLC, the drug absorption rate constant (K(a)) and apparent absorption coefficient (P(app)) were tested to evaluate their absorption characteristics.</p><p><b>RESULT</b>The absorption of berberine and palmatine in different regions of rat intestinals was significantly different. From bigness to smallness, the P(app) value of berberine at 50 mg x L(-1) were ileum, duodenum, jejunum and colon, of palmatine at 50 mg x L(-1) were ileum, colon, jejunum and duodenum. The concentration of berberine and palmatine had distinctive effect on the K(a) value of berberine and palmatine were ordered from larger to little as in Wujiwan compatibility, Coptis chinensis extractive and single compound.</p><p><b>CONCLUSION</b>The berberine and palmatine were absroped at all regions of rat intestinal. The absorption characteristics of 2 alkaloids were not passive diffusion. The other ingredients in Wujiwan compatibility and Coptis chinensis extractive could promote the absorption of alkaloids.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Perfusión
/
Berberina
/
Alcaloides de Berberina
/
Farmacocinética
/
Ratas Wistar
/
Coptis
/
Alcaloides
/
Absorción Intestinal
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
Idioma:
Chino
Revista:
China Journal of Chinese Materia Medica
Año:
2011
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS