284 research outputs found

    The role of appoptosin in regulating oxidative stress and mitochondrial morphology

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    氧化压力是指细胞或体内氧自由基的含量超出抗氧化物及抗氧化酶类清除能力时对细胞或机体造成的氧化胁迫。氧化压力参与了包括炎症、衰老、心血管疾病、癌症、糖尿病、艾滋病、神经退行性疾病等多种疾病的发病过程。氧化压力通过多个下游信号通路对细胞造成胁迫,如JNK、Foxo等,但其中的具体参与蛋白仍有待于深入阐明。Appoptosin也被称为SLC25A38,是一种定位于线粒体内膜的转运蛋白,负责转入甘氨酸并转出D-氨基乙酰丙酸,进而调节血红素(heme)的合成。我们实验室前期的研究结果表明appoptosin是一种促凋亡蛋白,但是目前对于appoptosin更为具体的功能研究仍然十分有限。 为了更好地理...Reactive oxygen species (ROS) can cause oxidative stress when not adequately counterbalanced by the defense system, which usually constitutes non-enzymatic molecules and enzymatic scavengers. ROS is involved in the pathogenesis of diseases such as inflammation, cardiovascular diseases, cancer, diabetes, AIDS and neurodegenerative diseases. Appoptosin/SLC25A38 is a nuclear encoded mitochondrial inn...学位:理学博士院系专业:药学院_化学生物学学号:3232011015412

    Aldose Reductase and Insulin Resistance: Effects of Inhibition of Aldose Reductase on Inflammation in the Adipose Tissue and AMPK Activity in the Liver

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    醛糖还原酶(AR)在细胞代谢、免疫/炎症应答、渗透调控、细胞解毒、激素合成、生殖发育与代谢调控等生命活动中扮演着重要角色。我们实验室在前期研究中发现,AR可通过调节MAPK-ERK信号通路来改变肝代谢性核受体PPARα的磷酸化和活性,进而影响细胞内脂质稳态。我们的预实验还显示,AR的缺失显著地改善了C57BL/6Ay/a小鼠的脂质代谢和葡萄糖耐受性,提示AR活性的异常可能与胰岛素抵抗的发生发展有关。 本研究中,我们分别通过利用慢病毒AR-shRNA系统、醛糖还原酶抑制剂(aldosereductaseinhibitor,ARI)zopolrestate处理的细胞模型以及ARI处理的动物模型和...Aldose reductase (AR) plays a key role in inflammatory response, osmotic regulation, cellular detoxification, hormone synthesis, propagation and metabolic regulation. In our previous studies, we had shown that AR regulates PPARα phosphorylation and activity through MAPK-ERK pathway, thereby affecting cellular lipid metabolism. Our preliminary study also showed in C57BL/6 Ay/a mice that AR deficien...学位:理学硕士院系专业:生命科学学院生物医学科学系_生物化学与分子生物学学号:2162007115202

    Study on Operrational Risk Management in Chinese Commercial Banks

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    操作风险引起银行业金融大案频发,给许多银行都带来严重的打击,操作风 险正受到日益广泛的关注,操作风险管理成为现代商业银行管理的核心,操作风 险管理水平的高低成为衡量一家银行整体管理能力的重要指标。 我国商业银行对操作风险的理解、认识比较粗浅,管理还处于较低水平,尚 未建立起全面、系统的操作风险管理体系,无论是在操作风险管理理念,还是操 作风险管理手段上,均与发达国家存在很大差距。因此,操作风险成为我国商业 银行风险研究的重要领域,是我国商业银行风险管理体系重要组成部分。操作风 险管理成为我国商业银行生存的生命线和核心竞争能力。加强和完善我国商业银 行操作风险管理成为当前重要的研...Due to the operational risk, financial cases in banking industry occur frequently, which bring serious blow to many banks. Therefore, operational risk has received increasing concern, and management of it becomes the core of modern commercial bank, which also becomes an important indicator of the overall management capacity in measure of bank. The understanding of operational risk in Chinese ...学位:会计硕士院系专业:厦门大学与厦门国家会计学院会计硕士专业学位联合教育中心(MPACC)_会计硕士(MPACC)学号:X200515713

    Experimental Study on Nanocomposites of MWCNTs/PLGA and the Effects on Attachment, Proliferation and Differentiation of Rat BMSCs on the Nanocomposite films

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    聚(乳酸-羟基乙酸)共聚物(poly(lactide-co-glycolide),PLGA)具有良好的生物相容性和生物可降解性,已被广泛用于骨移植替代品。碳纳米管(carbonnanotubes,CNTs),基于一系列在电子、热和机械等方面的特性,在生物医学领域也已成为关注的焦点。鉴于骨髓间充质干细胞(Mesenchymalstemcells,MSCs)具有可获得性、可扩增性和良好的成骨分化潜能可作为较理想的骨组织工程种子细胞。 本文以PLGA和多壁碳纳米管(multi-walledCNTs,MWCNTs)为材料,用浓硫酸和浓硝酸的混酸对多壁碳纳米管表面处理得到羧基功能化的多壁碳纳米管(ca...Poly (lactic acid - glycolic acid) copolymer (PLGA) with good biocompatibility and biodegradability has been widely used in the fabrication of bone graft substitutes. Carbon nanotubes, due to its intrinsic physical and chemistry properties, also hold great promise for use with more and more attention. In view of availability and amplifying in vitro for bone mesenchymal stem cells (MSCs), which hol...学位:理学硕士院系专业:材料学院生物材料系_☆生物医学工程学号:3142008115062

    一种用于胃肠道异物取出的装置

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    在医院对有些病人不慎吞下的异物要在内镜室内利用内镜直视下钳取出胃肠道内的异物,医务人员在内镜的引导下用活检钳或圈套器将其直接拖出体外,由于有些异物是单端或两端尖锐,如果横着拖出体外将很容易划伤食管及咽喉部位,形成对病人的二次伤害

    The effectiveness of applying systemic functional linguistics to teach junior secondary students brief expository speaking = 運用文類功能教學如何提升中二級學生個人論說短講能力

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    Thesis (B. Ed.)--University of Hong Kong, 2013.Includes bibliographical references (p. 36-38)Zhi dao lao shi: Wu Fengping.指導老師: 吳鳳平.published_or_final_versionB.Ed. in Language Educatio

    広東語と日本語の相似点及び相違点に関する一考察

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    ニホンゴ フクゴウ ドウシ ケンキュウ ノ ゲンザイ

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