Search for dissertations about: "zoofysiologi"

Showing result 21 - 25 of 25 swedish dissertations containing the word zoofysiologi.

  2. 21. From adrenergic signalling to gene expression : a study in brown adipocytes

    Author : Håkan Thonberg; Paul Trayhurn; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; zoofysiologi; Zoological physiology;

    Abstract : Many external stimuli influence gene expression in cells by first interacting with cell surface receptors. For alteration of the expression of a gene, the signal has to be passed into the nucleus. This is facilitated by particular proteins/molecules in a signal transduction cascade. READ MORE

  4. 22. Regulation of Intracellular Calcium in Brown Adipocytes

    Author : Shi-Jin Zhang; Lawrence C.H Wang; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; zoofysiologi; Zoological physiology;

    Abstract : Intracellular Ca2+ is considered a primary regulator of cell function. In the present study, the control and the effects of intracellular Ca2+ in brown adipocytes have been investigated. Cytosolic Ca2+ levels ([Ca2+]i) are the resultant of the activity of Ca2+ transport systems. READ MORE

  5. 23. Adrenergic Receptors Regulating cAMP Generation and Thermogenesis in Isolated Brown Adipocytes

    Author : Jin Zhao; Roger J. Summers; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP; zoofysiologi; Zoological physiology;

    Abstract : Adrenoceptors are the functional receptors in brown adipocytes. In the present study, the second messenger cAMP - and thermogenesis (which is an index of the energy metabolism of brown adipocytes) - were measured in order to reveal the intricate mechanism of effects generated by various adrenoceptor interactions with agonists and antagonists on brown adipocytes from hamster, mouse and rat. READ MORE

  6. 24. Environmental, nutritional and endocrine regulation of metabolic processes in fish

    Author : Andreas Kullgren; Göteborgs universitet; []
    Keywords : lipids; metabolism; temperature; fasting; growth hormone; ghrelin; NMR; metabolomics; Salmo salar; Oncorhynchus mykiss;

    Abstract : Due to seasonal variations in temperature and food availability, fish in temperate regions should be able to make metabolic adjustments to ensure that enough energy is available for the maintenance of basal processes. The major aim of this thesis was to elucidate how the physiology and lipid metabolism of salmonid fish is affected by temperature and food availability, and to clarify aspects of the endocrine control of lipid metabolism. READ MORE

  7. 25. Chronic stress and intestinal barrier function: Implications for infection and inflammation in intensive salmon aquaculture

    Author : Henrik Sundh; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Intestinal barrier function; stress; cortisol; Ussing chamber; welfare; health; inflammation; neutrophils; cytokines; chronic stress;

    Abstract : Aquaculture is a fast growing food-producing sector worldwide. This has increased the awareness among the public as well as governments of the need to secure the welfare and health of farmed fish. Atlantic salmon is, in non-Asian countries, one of the most successful aquacultured species. READ MORE