Berberine increases the expression of NHE3 and AQP4 in sennosideA-induced diarrhoea model.
Fitoterapia
; 83(6): 1014-22, 2012 Sep.
Article
em En
| MEDLINE
| ID: mdl-22668974
ABSTRACT
Berberine, a compound isolated from Chinese Goldthread Rhizome, has been widely used as a non-prescription drug to treat diarrhoea in China. Previous studies have demonstrated multiple pharmacological activities for berberine, including its significant role in antimicrobial activity. However, its effect on ion exchange and water transfer remains unclear. The present study aims to explore the effect of berberine on the expression of Na(+)/H(+) exchanger3 (NHE3) and aquaporin4 (AQP4) in both diarrhoea mouse model induced by sennosideA and human intestinal epithelium cell line (HIEC). Semi-quantitative RT-PCR, immunohistochemistry and western blotting were adopted to detect the mRNA and protein expression levels of NHE3 and AQP4. Furthermore, the absorption of berberine and the PKC activity were detected by HPLC and PepTag® Assay to elucidate the underlying mechanisms. It was shown that the expression levels of NHE3 and AQP4 were significantly increased in the diarrhoea mice treated with berberine compared with the untreated diarrhoea mice. Similarly, the expression levels of NHE3 and AQP4 were strikingly enhanced in HIEC co-treated with sennosideA and berberine compared with samples treated with sennosideA only. We also found the maximal absorption of berberine to be approximately 0.01%. In addition, no significant change of PKC activity was observed in the different HIEC treated groups. These results showed that berberine was able to increase the expression of NHE3 and AQP4, suggesting that berberine might exhibit its anti-diarrhoeal effect partially by enhancing the absorption of Na(+) and water.
Texto completo:
1
Base de dados:
MEDLINE
Medicinas Tradicionais:
Medicinas_tradicionales_de_asia
/
Medicina_china
Métodos Terapêuticos e Terapias MTCI:
Terapias_biologicas
/
Aromoterapia
/
Hidroterapia
/
Plantas_medicinales
Assunto principal:
Berberina
/
Medicamentos de Ervas Chinesas
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Trocadores de Sódio-Hidrogênio
/
Coptis
/
Diarreia
/
Aquaporina 4
/
Fitoterapia
Idioma:
En
Revista:
Fitoterapia
Ano de publicação:
2012
Tipo de documento:
Article