Sökning: "GABA A receptors"
Visar resultat 1 - 5 av 72 avhandlingar innehållade orden GABA A receptors.
1. Chemical signalling in the Drosophila brain : GABA, short neuropeptide F and their receptors
Sammanfattning : Gamma-aminobutyric acid (GABA) and short neuropeptide F (sNPF) are widespread signalling molecules in the brain of insects. In order to understand more about the signalling and to some extent start to unravel the functional roles of these two substances, this study has examined the locations of the transmitters and their receptors in the brain of the fruit fly Drosophila melanogaster using immunocytochemistry in combination with Gal4/UAS technique. LÄS MER
2. Hippocampal galanin and acetylcholine in spatial learning
Sammanfattning : The aim of the present thesis was to study how the neuropeptide galanin affects the neurochemistry and functional activity of the cholinergic septohippocampal projection, which plays a pivotal role in learning and memory. This cholinergic system is strongly impaired in Alzheimer's disease and in age-related dementias. LÄS MER
3. GABA in the islets of Langerhans
Sammanfattning : GABA (γ-aminobutyric acid) is a well-known inhibitory neurotransmitter in the CNS. GABA is also present at high concentrations in the insulin-producing β-cells in the islets of Langerhans, but its function there is less clear. GABA is believed to accumulate in SLMVs (synaptic-like microvesicles). LÄS MER
4. The optic tectum of the salmon:site of interaction of neurohormonal photoperiodic and neural visual signals. The GABAergic neuronal system and melatonin receptors
Sammanfattning : 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. LÄS MER
5. Cyanide and central nervous system : a study with focus on brain dopamine
Sammanfattning : The brain is a major target site in acute cyanide intoxication, as indicated by several symptoms and signs. Cyanide inhibits the enzyme cytochrome oxidase. This inhibition causes impaired oxygen utilization in all cells affected, severe metabolic acidosis and inhibited production of energy. LÄS MER