Avancerad sökning

Hittade 4 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Cyclic Nucleotide Phosphodiesterase 3B: Regulation in rat adipocytes and 3T3-L1 cells

    Författare :Tova Landström; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 3T3-L1 TNF-alpha; adipocyte; insulin; p70S6 kinase; mitogen-activated protein kinase; protein kinase B; phosphatidylinositol-3 kinase; phosphodiesterase 3B; cAMP; lipolysis; phosphorylation; signal transduction; Biochemistry; Metabolism; Biokemi; metabolism;

    Sammanfattning : Insulin stimulation of rat adipocytes results in phosphorylation and activation of the cyclic nucleotide phosphodiesterase 3B (PDE3B), a key enzyme in the antilipolytic signalling pathway of this hormone. In this thesis, the site phosphorylated in PDE3B upon stimulation of rat adipocytes with insulin and/or the beta-adrenergic agonist, isoproterenol is identified. LÄS MER

  3. 2. The role of mTor in the pathogenesis of tau-related pathologies in Alzheimer disease

    Författare :Zhi Tang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : An important neurophathological hallmark of Alzheimer disease (AD) is the progressive formation of neurofibrillary tangles composed of aberrant hyperphosphorylated tau aggregates. Evidence from human postmortem AD brains and in vitro and in vivo rapamycin-treated drug models implicated an abnormal accumulation of the mammalian target of rapamycin (mTor) in AD brains. LÄS MER

  4. 3. Glucose- and hypoxia-regulated insulin gene expression

    Författare :Linda Tillmar; Jens Höiriis Nielsen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; islet; beta-cell; insulin; mRNA stability; PTB; glucose; hypoxia; mTOR; p70s6k; ceramide; redox; ROS; Cellbiologi; Cell biology; Cellbiologi; medicinsk cellbiologi; Medical Cell Biology;

    Sammanfattning : Although extensively studied, there are still many unanswered questions regarding the exact regulation of insulin gene expression. This is important to further investigate since it will hopefully help us understand the pathophysiology of some types of diabetes. LÄS MER

  5. 4. Basis for reclassification of nasopharyngeal carcinoma

    Författare :Jian-Yong Shao; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Nasopharyngeal carcinoma (NPC) shows broad differences in racial and geographical distribution, radiosensitivity, and a multifactorial etiology. This thesis aims to identify molecular biomarkers with potentially valuable for prognostic implications in NPC. LÄS MER