Sökning: "Fos expression"

Visar resultat 21 - 25 av 61 avhandlingar innehållade orden Fos expression.

  1. 21. Molecular basis for the anti-inflammatory properties of chlomethiazole

    Författare :Anastasia Simi; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Stroke; neuroprotection; p38 MAP kinase; chlomethiazole; interleukin-1; c-fos; inflammation; glia; lipopolysaccharide; molecular mechanisms; ischaemia;

    Sammanfattning : Chlomethiazole (CMZ) exerts neuroprotective effects in animal models of stroke, and its clinical efficacy is currently evaluated in acute stroke patients. CMZ also protects the liver from alcohol- induced oxidative damage by inhibiting the cytochrome P450 2E1 (CYP2E1), as well as inflammation associated with alcohol liver disease (ALD) by inhibiting cytokine expression. LÄS MER

  3. 22. Heavy metal neurotoxicity : on trimethyltin-, methylmercury- and cadmium-induced disturbances of neurotransmitter systems and neurotrophins

    Författare :Helena Andersson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :neurotoxicity; trimethyltin; methylmercury; cadmium; development; GFAP; GABA; noradrenalin; BDNF; c-fos; hsp70; glial glutamate transporter;

    Sammanfattning : Organic and inorganic metal compounds produced by human activities often reach the environment where they are associated with a plethora of potential health hazards. Of particular concern is the risk for CNS disturbances during development or in the adult. LÄS MER

  4. 23. Effects of nicotine on mesolimbocortical dopaminergic neurotransmission : a pharmacological study in the rat

    Författare :Magnus Nisell; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :nicotine; dopamine; ventral tegmental area; accumbens; prefrontal cortex; c-fos; drug-dependence; sensitization; mecamylamine; D; receptors; SCH 23390;

    Sammanfattning : Tobacco-smoking represents a form of drug addiction to nicotine (NlC) and the reinforcing and dependence-producing properties of NIC depend largely on central dopamine (DA) neurons, located in the ventral tegmental area (VTA) and projecting mainly to the nucleus accumbens (NAc; mesolimbic DA system) and the medial prefrontal cortex (PFC; mesocortical DA system). Generally, the mesolimbic DA system plays a pivotal role in the reinforcing effects of natural rewards as well as of drugs of abuse. LÄS MER

  5. 24. Gluco- and mineralocorticoid receptor regulation of regional brain neurotrophism

    Författare :Anita Christiane Hansson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Neurotrophins; BDNF; NT-3; bFGF; FGF receptor; immediate early genes; c-fos; antisense oligodeoxynucleotides; adrenalectomy; stress; glucocorticoids; mineralocorticoids; glucocorticoid receptor; mineralocorticoid; receptor in situ hybridization.;

    Sammanfattning : Gluco- and mineralocorticoid hormones exert powerful actions on brain function and are important in the mediation of the stress response and the survival of hippocampal neurons. The aim of this thesis was to study the influence of glucocorticoid (GR)/mineralocorticoid receptor (MR) actions on brain neurotrophism including analyses of immediate early genes (IEGs) and of feedback responses on GR and/or MR. LÄS MER

  7. 25. Selective insulin signaling in the pancreatic beta-cell via the two insulin receptor isoforms

    Författare :Sabine Uhles; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Insulin receptor; signal transduction; gene expression regulation; insulin; glucokinase; cfos; pancreatic beta cell; membrane microdomains; green fluorescent protein.;

    Sammanfattning : Insulin exhibits pleiotropic effects that are tissue- as well as development-dependent. However, the mechanisms by which insulin gains selective effects are poorly understood. Selectivity in insulin signaling is currently discussed as the result of the activation of specific signal transduction pathways. LÄS MER