Sökning: "thiamine"

Visar resultat 6 - 10 av 16 avhandlingar innehållade ordet thiamine.

  1. 6. Contributions to the molecular physiology of thiamine

    Författare :Zoltán G. Bánhidi; Stockholms högskola; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 7. Biochemical studies of thiamine deficiency in Baltic salmon (Salmo salar)

    Författare :Gun Åkerman; Lennart Balk; Björn Brunström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental toxicology; Miljötoxikologi; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : The first part of this thesis is about the development of a method to inject various substances into the yolk of fish eggs. The method was named nanoinjection and enabled the injection of volumes as small as 10-9 L into the yolk of single fish eggs directly after fertilization, with insignificant mortality due to the injection. LÄS MER

  4. 8. Experimental Studies on the Regulation of Pigment Dynamics in Phytoplankton and Copepods by Dissolved Inorganic Nutrients

    Författare :Lies Van Nieuwerburgh; Pauli Snoeijs; Ulf Båmstedt; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Astaxanthin; Baltic Sea; carotenoids; diatoms; eutrophication; food web; mesocosms; microalgae; M74 syndrome; oxidative stress; phytoplankton blooms; zooplankton; Biologi; Biology; Biologi;

    Sammanfattning : This thesis examines the role of dissolved inorganic nutrients in generating changes in phytoplankton community and pigment composition and if such changes can affect the production of the antioxidant astaxanthin in the ecosystem via pelagic copepods. The background of my studies is the possible relationship between eutrophication and a reproductive disturbance in Baltic populations of Atlantic salmon (M74), which is associated with astaxanthin and thiamine deficiencies and oxidative stress. LÄS MER

  5. 9. The Threat to the Baltic Salmon - a Combination of Persistent Pollutants, Parasite and Oxidative Stress

    Författare :Maria Persson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Salmo salar; Atlantic salmon; polychlorinated biphenyls; Animal ecology; akvatisk ekologi; limnologi; Marinbiologi; limnology; aquatic ecology; marine biology; Hydrobiology; Ekologi; Ecology; lake Vänern; lake Vättern; Baltic Sea; Eubothrium crassum; aryl hydrocarbon receptor; AHR; consumption advice; stable isotopes; astaxanthin; EROD; M74; antioxidants; biomagnification; cestodes; parasites; DDT; Djurekologi; Environmental chemistry; Miljökemi; PCB;

    Sammanfattning : Atlantic salmon (Salmo salar) from the Baltic Sea suffer from a reproduction disease known as the M74-syndrome. Newly hatched fry develop nerve disorders and die between 3-5 days after the first symptoms are seen. This is a maternally transmitted disease that is casued by a thiamine (vitamin B1) deficiency. LÄS MER

  7. 10. RNA-mediated gene regulation in Neisseria meningitidis and other nasopharyngeal pathogens

    Författare :Hannes Eichner; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Neisseria meningitidis is a transient commensal bacterium of the upper respiratory tract and spreads through respiratory secretions produced by the carrier. While mostly harmless, the bacterium can cause invasive meningococcal disease by entering the circulatory system, leading to septicaemia and/or meningitis. LÄS MER