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  • Title: Salidroside and FG-4592 ameliorate high glucose-induced glomerular endothelial cells injury via HIF upregulation.
    Author: Xie RY, Fang XL, Zheng XB, Lv WZ, Li YJ, Ibrahim Rage H, He QL, Zhu WP, Cui TX.
    Journal: Biomed Pharmacother; 2019 Oct; 118():109175. PubMed ID: 31351423.
    Abstract:
    Increasing research indicates that hyperglycemia plays a crucial role in the progression of diabetic nephropathy (DN); however, effective treatment for preventing or slowing DN progression are seriously lacking. Although salidroside (SAL) has been demonstrated to have a positive anti-diabetic effect, the cellular mechanisms remain unclear. FG-4592, a novel prolyl hydroxylase inhibitor, was used to regulate HIF-1α and HIF-2α expression. The present study aimed to explore the underlying mechanisms of SAL and FG-4592 on high glucose (HG)-induced rat glomerular endothelial cells (rGECs) injury. HG-cultured rGECs were used to induce a diabetic environment. An MTT assay, RT-qPCR, Western blot, flow cytometry, and immunofluorescent staining were performed to investigate the effects of SAL on HG-induced rGECs injury. FG-4592 and SAL protected rGECs against HG-induced injury by increasing cellular viability and reducing the cell apoptosis rate. SAL and FG-4592 downregulated PHD-2 expression and upregulated HIF-1α and HIF-2α expression. In conclusion, our findings suggest that SAL and FG-4592 ameliorate HG-induced rGEC injury by upregulating HIF expression, indicating that SAL and FG-4592 might be favorable for further DN-treatment.
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