Abstract
To explore the effect and mechanism of berberine on diabetic nephropathy in experimental rats. The rat model of diabetic nephropathy was induced by injection of streptozocin (STZ). The rats were divided into 6 groups: control group, model group, 3 berberine treatment groups and Xiaoke Wan (XKW) treatment group. The fasting blood glucose (FBG), kidney weight/body weight (KW/BW), blood urea nitrogen (BUN), creatinine (Cr) and urinary protein (Upro) were tested 8 weeks later. The expression of transforming growth factor-beta1 (TGF-beta1) and type IV collagen (IV-C) proteins in renal tissue of diabetic rats with nephropathy were observed by optical micrography. Berberine could reduce the levels of FBG, KW/BW, BUN, Cr, Upro and the expression of TGF-beta1 and IV-C proteins in renal tissue of diabetic rats with nephropathy. Berberine may protect renal function and slow down the progression of diabetic nephropathy in rats by suppressing the expression of TGF-beta1 and IV-C proteins in renal tissue.
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