Sökning: "Melatonin"

Visar resultat 26 - 30 av 55 avhandlingar innehållade ordet Melatonin.

  1. 26. Metabolism of melatonin : with focus on the influence of cytochrome P4501A2

    Författare :Carina Ursing; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Melatonin; cytochrome P450 1A2 ; fluvoxamine; caffeine; tobacco smoke.;

    Sammanfattning : Melatonin (MT) regulates circadian rhythms. It is produced by pinealocytes. Their function is regulated by light. MT enters the blood stream by passive diffusion. LÄS MER

  3. 27. Development of Analytical Methods for Determination of Melatonin in Biological Fluids

    Författare :Susanne Römsing; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 28. Functional features of human cytochrome P450 1A2 : with special focus on caffeine and melatonin metabolism

    Författare :Anna Nordmark; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Drug metabolism; CYP1A2; caffeine; melatonin; liver slices; in vitro methods;

    Sammanfattning : CYP1A2 is one of the major cytochrome P450 enzymes in the liver and metabolises drugs such as caffeine, clozapine, tacrine, and theophylline. CYP1A2 also has a role in chemical carcinogenesis due to its activation of procarcinogens, such as heterocyclic amines and arylamines. Caffeine is extensively used to assess CYP1A2 activity. LÄS MER

  5. 29. Melatonin and its receptors in the normal human gastrointestinal tract, pancreas and in small intestinal neuroendocrine tumours

    Författare :Fanny Söderquist; Janet Cunningham; Lisa Ekselius; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Melatonin, “the hormone of darkness” is well known to regulate sleep and circadian rhythm. However, melatonin is also present in numerous peripheral tissues and the number of actions assigned to this neurohormone is growing steadily. LÄS MER

  7. 30. Semen quality for predicting male fertility and the association with light-regulated parameters

    Författare :Gunilla Malm; Malmö Reproduktionsmedicin; []
    Nyckelord :male fertility; seasonal variation; melatonin; semen quality; DNA integrity; microRNA;

    Sammanfattning : .... LÄS MER