Search for dissertations about: "activation"
Showing result 16 - 20 of 4181 swedish dissertations containing the word activation.
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16. Biophysical investigations of ribonucleotide reductase : Activation and inhibition mechanisms
Abstract : Ribonucleotide reductase (RNR) is the enzyme responsible for de novo synthesis of deoxyribonucleotides, needed for both synthesis and repair of cellular DNA. The RNRs known so far are divided into three distinct classes; I, II and III. The conventional class I enzyme is composed of two separate subunits. READ MORE
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17. Human T-lymphocyte activation : interactions between lymphocytes and mitogenic or non-mitogenic lectins
Abstract : The aim of this investigation was to gain further insights in the mechanisms of T-lymphocyte activation by lectins. Interactions between the lectins and purified lymphocytes from human peripheral blood, were studied in the following respects: in vitro culture requirements for lectin induced DNA-synthesis, intercellular regulations of the mitogen response and binding of lectins to lymphocyte surface components. READ MORE
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18. Cold-induced nonshivering thermogenesis : tissue origin, activation, recruitment
Abstract : Two types of heat production, shivering and nonshivering thermogenesis, are activated in mammals in the cold. In small mammals, nonshivering thermogenesis becomes the main source of heat upon long-term cold exposure. READ MORE
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19. Trypsinogen and neutrophil activation in acute Pancreatitis
Abstract : Background and aims: Acute pancreatitis (AP) is a common condition characterized by premature protease activation, abdominal pain and leakage of pancreatic enzymes to the circulation. Approximately 10% develop systemic inflammation and persistent organ failure. READ MORE
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20. Aspects of Complement Activation in Thrombocytopenic Disorders
Abstract : The complement system is an essential effector of both innate and acquired immune responses. Due to its destructive potential, tight regulation is required. The contribution of complement has been associated with the pathogeneses in a wide range of diseases. READ MORE