Renoprotective effects of berberine and its potential effect on the expression of ß-arrestins and intercellular adhesion molecule-1 and vascular cell adhesion molecule-1 in streptozocin-diabetic nephropathy rats.
J Diabetes
; 8(5): 693-700, 2016 Sep.
Article
en En
| MEDLINE
| ID: mdl-26531813
BACKGROUND: Berberine has been shown to exert protective effects against diabetic nephropathy (DN), but the mechanisms involved have not been fully characterized. The aim of the present study was to explore the effects of berberine on the expression of ß-arrestins, intercellular cell adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) in DN rat kidneys and investigate the underlying molecular mechanisms. METHODS: To create the DN model, rats fed a high-fat and high-glucose diet were injected with a single dose of streptozotocin (35 mg/kg, i.p.). Then, DN rats were either treated or not with berberine (50, 100, 200 mg/kg per day, i.g., 8 weeks). Periodic acid-Schiff staining was used to evaluate renal histopathological changes. Renal tissue levels of ß-arrestin 1 and ß-arrestin 2 were determined by Western blot analysis, whereas immunohistochemistry was used to determine renal ICAM-1 and VCAM-1 levels. RESULTS: Berberine (100, 200 mg/kg) ameliorated the histopathological changes in the diabetic kidney. Western blot analysis revealed significant increases in ICAM-1 and VCAM-1 levels in the kidneys of DN rats, which were reversed by treatment with 100 and 200 mg/kg berberine. In addition, berberine treatment (50, 100, 200 mg/kg) increased diabetic-induced decreases in ß-arrestin 1 and ß-arrestin 2. CONCLUSIONS: Berberine exhibited renoprotective effects in DN rats. The underlying molecular mechanisms may be associated with changes in the levels and regulation of ß-arrestin expression, as well as ICAM-1 and VCAM-1 levels in the rat kidney.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Berberina
/
Molécula 1 de Adhesión Intercelular
/
Molécula 1 de Adhesión Celular Vascular
/
Diabetes Mellitus Experimental
/
Nefropatías Diabéticas
/
Beta-Arrestinas
Tipo de estudio:
Etiology_studies
Límite:
Animals
Idioma:
En
Revista:
J Diabetes
Asunto de la revista:
ENDOCRINOLOGIA
Año:
2016
Tipo del documento:
Article
Pais de publicación:
Australia