Sökning: "social signalling"

Visar resultat 21 - 25 av 34 avhandlingar innehållade orden social signalling.

  1. 21. Islet constitutive nitric oxide synthase and nitric oxide production. Modulatory effects on insulin and glucagon secretion

    Författare :Björn Åkesson; Allmänmedicin och klinisk epidemiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pharmacognosy; Pharmacological sciences; mouse; carbachol; muscarinic agonist; cyclic nucleotides; calcium-fluxes; NOS-inhibitors; in vitro and in vivo; insulin and glucagon secretion; Nitric oxide NO ; constitutive nitric oxide synthase cNOS ; pharmacy; toxicology; Farmakologi; farmakognosi; farmaci; toxikologi; Endocrinology; secreting systems; diabetology; Endokrinologi; sekretion; diabetologi;

    Sammanfattning : The aim of this thesis was to elucidate the role of nitric oxide (NO) in the transduction signalling of insulin and glucagon release by stimulating or inhibiting islet endogenous NO-production as well as by using NO donors. Insulin release stimulated by L-arginine, the substrate for constitutive NO-synthase (cNOS)-catalyzed NO-production, was increased by the selective NOS-inhibitor NG-nitro-L-arginine methyl ester (L-NAME) and suppressed by the intracellular NO donor hydroxylamine. LÄS MER

  3. 22. Interactions between the brain and the immune system in pain and inflammation

    Författare :Joanna Zajdel; David Engblom; Annika Thorsell; Jan Pieter Konsman; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; inflammation; pain; EP3Rs; serotonin; CGRP; conditioned taste aversion; maternal separation; maternal buffering;

    Sammanfattning : Reciprocal interactions between the nervous and immune systems have gained a lot of attention in the last two decades, especially after demonstrating that cytokine immunotherapies can induce depression and after describing the inflammatory reflex. A lot of effort has been dedicated to understanding how the signals from the immune system reach the brain and vice versa, and on their role in health and disease. LÄS MER

  4. 23. Causes and Consequences of Impulsivity in Red Junglefowl

    Författare :Laura Garnham; Hanne Lovlie; Per Jensen; Neeltje Boogert; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Behaviour; Cognition; Gallus gallus; Impulsivity; Inhibitory control; Red junglefowl;

    Sammanfattning : Throughout the animal kingdom, animals vary in cognition (i.e., how they acquire, process, store, and act on environmental information). Yet, the causes and consequences of this variation are currently unclear. LÄS MER

  5. 24. Behavioural and Neuroendocrine Effects of Stress in Salmonid Fish

    Författare :Øyvind Øverli; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Aggression; Behaviour; Brain; Coping; Cortisol; Dominance; Dopamine; Feeding; Hierarchy; Norepinephrine; Responsiveness; Serotonin; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; Developmental Biology; miljömedicinsk utvecklingsbiologi;

    Sammanfattning : Stress can affect several behavioural patterns, such as food intake and the general activity level of an animal. The central monoamine neurotransmitters serotonin, dopamine, and norepinephrine are important in the mediation of both behavioural and neuroendocrine stress effects. LÄS MER

  7. 25. From Sea to Society - Climate Change, Microbial Community Interactions and Assessing Climate Risk on Society

    Författare :Gurpreet Kaur-Kahlon; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Phytoplankton; Bacteria; Climate change; Quorum sensing; Microbial blooms; Vulnerability factors; Arabian Sea; Southwest India;

    Sammanfattning : Unicellular organisms, microalgae and bacteria, less than one millimeter in size make the world go round. Phytoplankton and cyanobacteria, for example, plays an inevitable role contributing 50-85% to the world’s oxygen via photosynthesis. LÄS MER