Sökning: "Regulatory cycle"

Visar resultat 1 - 5 av 206 avhandlingar innehållade orden Regulatory cycle.

  1. 1. The Polyamine Dependence of Cell Cycle Progression-Application in Breast Cancer Treatment

    Författare :Louise Myhre; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; tissue culture; histochemistry; Histology; cytochemistry; onkologi; cancer; Cytologi; oncology; cancerology; Cytology; cell cycle kinetics; cell cycle regulatory proteins; polyamine analogues; DENSPM; CGP48664; DFMO; cell cycle regulation; Polyamines; breast cancer; Djurfysiologi; Animal physiology; vävnadskultur; Histologi; cytokemi; histokemi;

    Sammanfattning : In the normal functioning organism, there is a balance between cell proliferation, cell differentiation, and cell death. An imbalance in these processes results in different diseases. This thesis concerns the imbalance where there is too little cell death and cell differentiation with increased cell proliferation. LÄS MER

  2. 2. Exploring the Cell Cycle of Archaea

    Författare :Magnus Lundgren; Rolf Bernander; William Margolin; Uppsala universitet; []
    Nyckelord :Microbiology; Archaea; Cell cycle; Replication; Mitosis; Cell division; Mikrobiologi;

    Sammanfattning : Archaea is the third domain of life, discovered only thirty years ago. In a microscope archaea appear indistinguishable from bacteria, but they have been shown to be more closely related to eukaryotes than to bacteria. Especially central information processing is homologous to that of eukaryotes. LÄS MER

  3. 3. Cell cycle regulatory genes in human astrocytic tumors

    Författare :Koichi Ichimura; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Cancer is a genetic disorder of somatic cells. Neoplastic transformation and malignant progression may be a consequence of accumulated multiple genetic changes in a cell. Astrocytic gliomas are the commonest brain tumors in humans. LÄS MER

  4. 4. Violaxanthin De-epoxidase and the Xanthophyll Cycle

    Författare :Anna Gisselsson; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant biochemistry; zeaxanthin.; xanthophyll cycle; violaxanthin de-epoxidse; thylakoid; regulation; quenching; protonation; pH-dependence; light stress; histidine; Conformational change; domains; Växtbiokemi;

    Sammanfattning : The xanthophyll cycle is a mechanism for short term adaptation of plants to varying light intensities. It involves a reversible conversion of violaxanthin to zeaxanthin, via the intermediate antheraxanthin, upon high light intensities. LÄS MER

  5. 5. Interferon-alpha signaling and cell cycle regulation in neuroendocrine tumors of the digestive system

    Författare :Yinghua Zhou; Uppsala universitet; []
    Nyckelord :Medical sciences; interferon-α; carcinoid tumors; interferon regulatory factor; p68; PKR; p21; p27; cell cycle; cyclin-dependent kinase; protein phosphorylation; protein trafficking; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Medicine; medicin;

    Sammanfattning : The prognosis for untreated carcinoid patients is poor and their quality of life is low. IFN-α treatment has shown a response rate of 50-80%, however, the antitumor mechanism has not been elucidated. LÄS MER