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Berberine AND Smad

Xiuli Zhang, Hui He, Dan Liang, Yan Jiang, Wei Liang, Zhi-Hong Chi, Jianfei Ma
Diabetic nephropathy (DN) is a serious diabetic complication with renal hypertrophy and expansion of extracellular matrices in renal fibrosis. Epithelial-to-mesenchymal transition (EMT) of renal tubular epithelial cells may be involved in the main mechanism. Berberine (BBR) has been shown to have antifibrotic effects in liver, kidney and lung. However, the mechanism of cytoprotective effects of BBR in DN is still unclear. In this study, we investigated the curative effects of BBR on tubulointerstitial fibrosis in streptozotocin (STZ)-induced diabetic mice and the high glucose (HG)-induced EMT in NRK 52E cells...
August 12, 2016: International Journal of Molecular Sciences
Yongchen Wang, Zheng Zhao, Yan Yan, Xiaoyan Qiang, Cuisong Zhou, Ruiyan Li, Huan Chen, Yubin Zhang
Demethyleneberberine (DMB) is an essential metabolite of Berberine (BBR) in vivo. Recent reports have revealed multiple novel therapeutic applications of BBR. However, the pharmacological activities of DMB remain to be elucidated. This study aimed to demonstrate the hepatoprotective and anti-fibrotic effects of DMB both in vitro and in vivo. Here we showed that DMB protects against thioacetamide (TAA)-induced hepatic fibrosis in mice and exhibits a higher safety profile as compared to BBR. Flow cytometry and Western blotting analysis showed that DMB is able to suppress the activation of hepatic stellate cells (HSCs) and induce cell apoptosis through the nuclear factor-κB (NF-κB) cascade...
June 30, 2016: International Journal of Molecular Sciences
C R Naveen, Sagar Gaikwad, Reena Agrawal-Rajput
BACKGROUND: Berberine, a plant alkaloid, has been used since many years for treatment of gastrointestinal disorders. It also shows promising medicinal use against metabolic disorders, neurodegenerative disorders and cancer; however its efficacy in neuroblastoma (NB) is poorly explored. HYPOTHESIS: EMT is important in cancer stemness and metastasis resulting in failure to differentiate; thus targeting EMT and related pathways can have clinical benefits. STUDY DESIGN: Potential of berberine was investigated for (i) neuronal differentiation and cancer stemness inhibition, (ii) underlying molecular mechanisms regulating cancer-stemness and (iii) EMT reversal...
June 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Palanivel Chitra, Gowrikumar Saiprasad, Ramar Manikandan, Ganapasam Sudhandiran
UNLABELLED: Idiopathic pulmonary fibrosis (IPF) is a fibroproliferative lung disorder of unknown aetiology. Transforming growth factor-β1 (TGF-β1)-mediated Smad and non-Smad signaling cascades are considered as central players in accelerating pulmonary fibrosis. We earlier reported berberine's amelioration against TGF-β1-mediated pro-fibrotic effects in bleomycin-induced pulmonary fibrosis. The present study aimed to determine the regulatory role of berberine on abrogated Smad 2/3 and FAK-dependent PI3K/Akt-mTOR signaling cascades in bleomycin-induced pulmonary fibrosis...
September 2015: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
Sheng Liu, Na Yu, Xiao-Li Zhang, Xiang-Qing Chen, Li-Qin Tang
OBJECTIVE: To investigate the effect of berberine (BBR) on unbalanced expression of renal tissue TGF-beta1/SnoN and Smad signal pathway in rats with early diabetic nephropathy (DN), and discuss BBR's effect on DN rats with early diabetic nephropathy and its possible mechanism. METHOD: DN rat model were established by injecting streptozotocin (STZ). The rats were divided into six groups: the control group, the model group, three BBR (50, 100, 200 mg x kg(-1)) treatment groups and the enalapril treatment group...
December 2012: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
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