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4篇 您的检索式:作者名="Mayasari"
    题名 作者 年代 出处 被引量
1Standardized bioactive fraction of Phaleria macrocarpa(Proliverenol) prevents ethanol-induced hepatotoxicity via down-regulation of NF-kB-TNFα-caspase-8 pathway显示文摘Objective: To verify that Proliverenol has a potential ability in protecting cells from ethanol-induced hepatotoxicity.Methods: Activity of Proliverenol against ethanol-induced apoptosis was evaluated at m RNA and protein levels in Hep G2 cell exposed to Proliverenol for 1 and 3 h.Results: Proliverenol conferred hepatoprotective activity through increasing cell survival up to 53%–69% via up-regulation of APEX1 DNA repair enzyme for 3.0–4.7 fold and down-regulating of nuclear factor-kB, tumor necrosis factora and caspase-8 expression,allowing them to prevent 4.5–6.9 fold of alanine aminotransferase(ALT) leakage in Hep G2 cells. Our finding revealed that Proliverenol repressed expression of ALT, which is significantly important as possible alternative mechanism for increased blood transaminase activities. In addition, the result also showed that caspase-8 pathway seemed to be involved in the molecular pathway rather than directly inducing mitochondrial damage.Conclusions: The data support our hypothesis that Proliverenol has a potential ability in protecting cells from ethanol-induced hepatotoxicity. We propose that Proliverenol provides hepatoprotective activity through up-regulating expression of APEX1 that repress DNA fragmentation, and down-regulating expression of nuclear factor-kB, tumor necrosis factora and caspase-8, which therefore repress ALT leakage and its expression.Guntur Berlian Olivia Mayasari Tandrasasmita Raymond Rubianto Tjandrawinata 2016Asian Pacific Journal of Tropical Biomedicine2016,6,8:2
2Single-Port Laparoscopic Spleen Preserving Distal Pancreatectomy显示文摘Stephen K. Y. Chang Davide Lomanto Maria Mayasari Luigi Boni 2012Minimally Invasive Surgery2012,,:1
3海藻酸钙/明胶微胶珠的制备、检测及神经干细胞相容性分析显示文摘研究制备了海藻酸钙/明胶微胶珠,并探讨了此种微胶珠的机械和渗透性能及作为细胞载体用于神经干细胞体外培养的可行性。使用自制穿刺力测试仪检测不同浓度的海藻酸钠、明胶和Ca Cl2对微胶珠机械强度的影响;采用DMEM(Dulbecco's Modified Eagle Media)培养基浸泡法测试微胶珠的耐浸泡能力;试验以微胶珠为对象建立扩散模型以研究葡萄糖和牛血清蛋白(Bovine serum albumin BSA)在微胶珠中的扩散情况,并模拟得扩散系数与物质浓度之间的关系,此后,通过包埋培养昆明小鼠神经干细胞探索微胶珠用于神经干细胞体外培养的可行性。通过综合分析强度和扩散性能以及培养细胞的状况等,得出海藻酸钙/明胶微胶珠的最佳制备参数:海藻酸钠1.5%(wt)、明胶0.5%(wt)、Ca Cl24%(wt),并发现所研究制备的海藻酸钙/明胶微胶珠具有良好的细胞相容性,适于作为细胞载体用于神经干细胞的体外培养。宋克东 虞泽 李瑞鹏 刘朋 Lim Mayasari 刘天庆 2015高校化学工程学报2015,29,5:1
4Trombinol,a bioactive fraction of Psidium guajava,stimulates thrombopoietin expression in HepG2 cells显示文摘Objective:To study the regulation of trombinol on thrombopoietin,an essential regulator of thrombocyte production.Methods:Effect of trombinol on thrombopoietin regulation was evaluated at the m RNA and protein levels in human hepatoma Hep G2 cells.The m RNA expressions were revealed by PCR and real-time PCR,while the protein expressions were analyzed using western blotting and human ELISA kit.Statistical differences between the test were determined by student's t-test with P < 0.05 was considered statistically significant.Results:Trombinol significantly increased the expression of thrombopoietin at the level of m RNA and protein secretion in Hep G2 cell lines.Trombinol with the concentration of15 mg/m L,positively induces 2.5-fold of thrombopoietin expression.Up-regulation of GABP,a transcription factor of thrombopoietin,is suggested to be involved in cellular regulatory mechanisms of trombinol.Here,our result shows convincing evidence that trombinol affects the thrombopoietin productions in vitro.This molecular explanation of thrombopoietin's stimulating function is in line with the traditional use of Psidium guajava for treatment of diseases involving thrombocytopenia.Conclusions:Thrombopoietin stimulating function of trombinol could be potentially considered as one of alternative treatment for thrombocytopenia-related cases,including post chemotherapy shock,dengue fever and liver failure.Guntur Berlian Olivia Mayasari Tandrasasmita Raymond Rubianto Tjandrawinata 2017Asian Pacific Journal of Tropical Biomedicine2017,7,5:0
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