Xem 1-20 trên 155 kết quả Cellular activities
  • Factor VII-activating protease (FSAP) circulates as an inactive zymogen in the plasma. FSAP also regulates fibrinolysis by activating pro-urokinase or cellular activation via cleavage of platelet-derived growth factor BB (PDGF-BB). As the Marburg I polymorphism of FSAP, with reduced enzymatic activity, is a risk factor for atherosclerosis and liver fibrosis, the regulation of FSAP activity is of major importance.

    pdf12p vinaphone15 25-02-2013 20 1   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài: Nef-mediated enhancement of cellular activation and human immunodeficiency virus type 1 replication in primary T cells...

    pdf17p toshiba15 24-10-2011 20 3   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Long-term exposure of CdTe quantum dots on PC12 cellular activity and the determination of optimum non-toxic concentrations for biological use

    pdf16p toshiba25 08-12-2011 22 3   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Review Native aggregation as a cause of origin of temporary cellular structures needed for all forms of cellular activity, signaling and transformations...

    pdf22p toshiba17 28-10-2011 22 1   Download

  • Gaucher disease is caused by mutations in the gene that encodes the lyso-somal enzyme acid b-glucosidase (GCase). We have shown previously that the small molecule pharmacological chaperone isofagomine (IFG) binds and stabilizes N370S GCase, resulting in increased lysosomal trafficking and cellular activity.

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  • Triacylglycerol metabolism inSaccharomyces cerevisiae was analyzed quan-titatively using a systems biological approach. Cellular growth, glucose uptake and ethanol secretion were measured as a function of time and used as input for a dynamic flux-balance model.

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  • 5-Lipoxygenase (5-LO) is the key enzyme in the biosynthesis of leukotrie-nes (LTs), biological mediators of host defense reactions and of inflamma-tory diseases. While the role of membrane binding in the regulation of 5-LO activity is well established, the effects of lipids on cellular activity when added to the medium has not been characterized.

    pdf10p dell39 27-03-2013 10 2   Download

  • Epstein–Barr virus (EBV) is a potent mitogenic and anti-apoptotic agent for B lymphocytes and is associated with several different types of human tumour. The abundantly expressed small viral RNA, EBER-1, binds to the growth inhibitory and pro-apoptotic protein kinase R (PKR) and blocks activation of the latter by double-stranded RNA. Recent evidence has suggested that expression of EBER-1 alone in EBV-negative B cells promotes a tumorigenic phe-notype and that this may be related to inhibition of the pro-apoptotic effects of PKR....

    pdf11p dell39 03-04-2013 15 2   Download

  • The AAA-peroxins Pex1p and Pex6p play a critical role in peroxisome bio-genesis but their precise function remains to be established. These two peroxins consist of three distinct regions (N, D1, D2), two of which (D1, D2) contain a conserved230 amino acid cassette, which is common to all ATPases associated with various cellular activities (AAA). Here we show that Pex1p and Pex6p from Saccharomyces cerevisiaedo interact in vivo. We assigned their corresponding binding sites and elucidated the importance of ATP-binding and -hydrolysis of Pex1p and Pex6p for their interaction. ...

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  • Sialidases are enzymes that influence cellular activity by removing terminal sialic acid from glycolipids and glycoproteins. Four genetically distinct sia-lidases have been identified in mammalian cells. In this study, we demon-strate that three of these sialidases, lysosomal Neu1 and Neu4 and plasma membrane-associated Neu3, are expressed in human monocytes.

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  • Tham khảo sách 'export promotion federal agencies activities and resources in fiscal year 1999', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf62p nt18104 21-05-2013 12 1   Download

  • (BQ) Part 2 book "Cellular physiology and neurophysiology" presents the following contents: Active transport, physiology of synaptic transmission, synaptic physiology ii, molecular motors and Muscle contraction, excitation-contraction coupling in muscle, mechanics of muscle contraction.

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  • (BQ) Part 2 book "Cellular and molecular immunology" presents the following contents: Differentiation and functions of CD8+ effector T cells; B cell activation and antibody production, immunologic tolerance and autoimmunity, effector mechanisms of humoral immunity, immunity to microbes, transplantation immunology,...

    pdf307p thangnamvoiva5 14-07-2016 4 1   Download

  • The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology (NIST) promotes the U.S. economy and public welfare by providing technical leadership for the Nation’s measurement and standards infrastructure. ITL develops tests, test methods, reference data, proof of concept implementations, and technical analyses to advance the development and productive use of information technology.

    pdf99p khanhvi 03-03-2009 204 25   Download

  • Within this setting of a dynamic, private marketing system, the role of the Federal Government is to help keep the marketing of agricultural commodities flowing in an orderly and efficient manner, to promote effective distribution, to eliminate speculation and waste, and to stabilize the marketing of agricultural commodities. A brief summary of current programs and activities is given below. However, it must be realized that as the marketing system continues to evolve, there will be corresponding changes in the programs, services or activities of the Federal Government. ...

    pdf7p nhacchovina 22-03-2013 55 14   Download

  • A global research community of scientists is teasing out the biochemical mechanisms that regulate normal cellular physiology in a variety of organisms. Much of current research aims to understand the network of molecular reactions that regulate cellular homeostasis, and to learn what allows cells to sense stress and activate appropriate biochemical responses.

    pdf210p ktct_1669 09-05-2012 84 13   Download

  • The book Cell Interaction focuses on various processes that occur within and outside the cells. Cell interactions are important for functioning of many organ systems: cell adhesion, tissue development, cellular communication, inflammation, tumor metastasis, and microbial infection. Key features include developmental cell interactions, immune and neural cell interactions, cell interactions in normal and disease conditions and advanced level methods to evaluate cell interactions.

    pdf332p camchuong_1 04-12-2012 31 10   Download

  • The production of free radicals (ROS) is an unavoidable consequence of life in an aerobic environment. Free radicals produced from the metabolic activities of oxygen attack biological membranes and lipoproteins via oxidation in a process called lipid perioxidation. This attack damages cells and lipids often in a chain reaction with carbon-based molecules such as polyunsaturated fatty acids (PUFA) in a reaction with molecular oxygen. This creates oxidative stress and damage to tissues. Free radicals also damage chromosomal DNA.

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  • This book presents basic and advanced principles underlying the multivalent interactions that are prevalent in biological systems. To illustrate important or complex concepts, the book provides up-to-date examples of synthetic multivalent molecules, their design, and their biological benefits. Functional roles displayed by such molecules of both natural and synthetic origin are well documented in biology, where they exert unique and crucial activities at a level not readily achievable by monovalent molecules.

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  • GPI-anchored receptors do not have intracellular signaling domains. Instead, the mammalian Toll-like receptors (TLRs) transduce signals for cellular activation due to LPS binding. It has recently been shown that binding of microbial factors to TLRs to activate signal transduction occurs not on the cell surface, but rather in the phagosome of cells that have internalized the microbe. This interaction is probably due to the release of the microbial surface factor from the cell in the environment of the phagosome, where the liberated factor can bind to its cognate TLRs.

    pdf5p thanhongan 07-12-2010 40 5   Download

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