Abstract
We aimed to investigate the effect of berberine on adipose tissues, as well as its effect on renal injury in 3T3-L1 cells and spontaneously hypertensive rats. 3T3-L1 cells were cultured and treated with berberine (5-20 pM) from days 3 to 8. Berberine added to the cultured medium could significantly down-regulate transcription factors, including CCAAT/enhancer binding protein β, CCAAT/enhancer binding protein a, and peroxisome pro liferator-activated receptor y, and suppress peroxisome proliferator-activated receptor target genes, such as adipocyte fatty acid binding protein and fatty acid synthase, and inhibit 3T3-Ll fibroblast differentiation to adipocytes. Male spontaneously hypertensive rats received either 150 mg/day of berberine or saline orally for 8 weeks. Compared with the control, berberine-treated rats exhibited significant reductions in body weight gain (p < 0.05), as well as retroperitoneal and mesenteric adipose tissues (p < 0.05). Berberine-treated rats significantly decreased urinary albumin excretion, a marker of renal injury (p < 0.05). Long-term treatment with berberine decreased the adipose tissues weight and attenuated renal injury in spontaneously hypertensive rats. Based on these results, berberine has an important role in regulating adipose tissues. These results suggest the protective effect of berberine on metabolic syndrome related diseases, such as renal injury.
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