Search for dissertations about: "melatonin"
Showing result 21 - 25 of 54 swedish dissertations containing the word melatonin.
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21. Morphological and Physiological Adaptations in Cichlid Crystalline Lenses
Abstract : Vertebrate eyes share a common ancestry as well as the basic design with a pupil, a retina and a lens. The lens is essential for perceiving the details in the world around us and ensures that a sharp image of the surroundings is focused onto the photoreceptors in the retina. READ MORE
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22. Melatonin receptors in pancreatic islets - Linking a genetic variant to functional phenotype
Abstract : Defective insulin secretion and insulin resistance are the two hallmarks of Type 2 Diabetes (T2D). The pathophysiology of the disease is not fully understood but genetic susceptibility for the disease is a new major player in the understanding of the underlying mechanisms. READ MORE
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23. The optic tectum of the salmon:site of interaction of neurohormonal photoperiodic and neural visual signals. The GABAergic neuronal system and melatonin receptors
Abstract : Melatonin is a neurohormone which mediates photoperiodic signals from the pineal organ to the brain. GABA (g-aminobutyric acid) is the major inhibitory transmitter in the central nervous system. READ MORE
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24. Melatonin secretion and excretion : a clinical study focusing on factors and disease states which might influence melatonin
Abstract : The overall aim of this thesis was to find out whether other factors than the the light-dark changes influence the function of the pineal gland. Since melatonin (MT) itself, or its precursor serotonin, are of importance for sleep, mood, and pain perception, disease states - or situations in which these functions are disturbed - should be of interest to investigate in this context. READ MORE
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25. Metabolism of melatonin : with focus on the influence of cytochrome P4501A2
Abstract : Melatonin (MT) regulates circadian rhythms. It is produced by pinealocytes. Their function is regulated by light. MT enters the blood stream by passive diffusion. READ MORE