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  • Title: Study on therapeutic action of bone marrow derived mesenchymal stem cell combined with vitamin E against acute kidney injury in rats.
    Author: Liu P, Feng Y, Dong C, Liu D, Wu X, Wu H, Lv P, Zhou Y.
    Journal: Life Sci; 2013 May 02; 92(14-16):829-37. PubMed ID: 23499556.
    Abstract:
    AIMS: The study aims to investigate the effect to treat acute kidney injury (AKI) with bone marrow derived mesenchymal stem cells (BMSCs) combined with vitamin E and to develop a new treatment mode for AKI preclinical study. MAIN METHODS: BMSCs were separated from rat bone marrow. Gentamicin was used as a damage factor in the culture of renal tubular epithelial cells (RTECs) in vitro. After co-cultured with BMSCs and vitamin E, cell proliferation of each group was detected with CCK-8. In vivo, BMSCs (3.3×10(6)cells/kg) combined with vitamin E (80mg/kg) were administered in AKI rats induced by gentamicin intravenously. The pathological changes, biochemical parameters and apoptosis genes after treatment were investigated furthermore. KEY FINDINGS: In co-cultured system, proliferating ability of RTECs was improved by BMSCs or vitamin E, especially for the combined group (P<0.05). The treated rats in combined group presented the lowest serum creatinine and the highest urea nitrogen compared to non-treated rats. The improvement in renal pathological changes was followed by less necrosis, degeneration and expansion of renal tubule. Under transmission electron microscope, unclear cell structure and reduction of endoplasmic reticulum in the cytoplasm of RTECs were ameliorated with the treatment. Most apoptosis genes were up-regulated in model group while down-regulated with the therapy. Further analysis showed that the two treatments may act independently with each other. SIGNIFICANCE: Our data demonstrated that both BMSC and vitamin E hold therapeutic action to AKI induced by gentamicin. Especially, the combined treatment is better than BMSC or vitamin E alone.
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