Sökning: "trophic factor"

Visar resultat 1 - 5 av 62 avhandlingar innehållade orden trophic factor.

  1. 1. Trophic ecology of meiofauna : Response to sedimentation of phytoplankton blooms in the Baltic Sea

    Författare :Francisco J.A. Nascimento; Ragnar Elmgren; Richard Warwick; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Meiofauna; Cyanobacteria; competition; facilitation; ecosystems processes; Marine ecology; Marin ekologi; Marine Ecology; marin ekologi;

    Sammanfattning : Marine soft sediments are the second largest habitat on Earth. How animal communities in this habitat are structured is a central issue in marine ecology. Food is an important limiting factor for many benthic populations, and settling organic matter from phytoplankton blooms is of vital importance to them. LÄS MER

  3. 2. Neurotrophic Factor Receptors in the Normal and Injured Visual System : Focus on Retinal Ganglion Cells

    Författare :Niclas Lindqvist; Finn Hallböök; Anders Kvanta; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurosciences; cell survival; gene expression; neurotrophic factor; receptor; retina; visual system; Neurovetenskap; Neurology; Neurologi; Developmental Neurosciences; Medicinsk utvecklings- och neurobiologi;

    Sammanfattning : The focus of this thesis is the life and death of adult retinal ganglion cells (RGCs). RGCs are neurons that convey visual information from the retina to higher centers in the brain. LÄS MER

  4. 3. Regulation of digestive organ. An experimental study on the role of CCK, Bile and EGF

    Författare :Bodil Ohlsson; Internmedicin - epidemiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; trophic effects; total parenteral nutrition; salivary glands; pancreaticobiliary diversion; pancreas; liver; intestinal mucosa; epidermal growth factor; cholecystokinin; biliodigestive shunt; Bile; bilary tract; serology; transplantation; Immunologi; serologi; Gastro-enterology; Gastroenterologi;

    Sammanfattning : Cholecystokinin (CCK) is known to exert secretory and trophic effects on the pancreas. Its release from the intestinal mucosa is regulated by pancresic proteases in the small intestine. However, knowledge about the type of responding exocrine cells and the time course of events during stimulation with CCK is lacking. LÄS MER

  5. 4. Trophic factors, neuroprotection and spinal cord repair

    Författare :Johan Widenfalk; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :spinal cord injury; GDNF; GFRalpha; neurotrophin; VEGF; olfactory ensheathing glia; weight-drop injury; in situ hybridization;

    Sammanfattning : Background: There is no cure for paralysis. The only drug therapy presently in use, acute high-dose methylprednisolone, has only modest effects on outcome. There is therefore a great need for new therapies. LÄS MER

  7. 5. Antidepressive and antipsychotic treatments : effects on nerve growth factor and brain-derived neurotrophic factor in rat brain

    Författare :Francesco Angelucci; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Recently it has been reported that depression and schizophrenia, the two major psychiatric disorders, are characterized by loss of neurons in specific brain regions. Nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) are proteins involved in neuronal survival and plasticity of dopaminergic, cholinergic and serotonergic neurons in the central nervous system (CNS). LÄS MER