Search for dissertations about: "synaptic vesicles"

Showing result 21 - 25 of 40 swedish dissertations containing the words synaptic vesicles.

  2. 21. GABA in the islets of Langerhans

    Author : Anna Wendt; Diabetes - öcellsexocytos; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; secreting systems; diabetologi; sekretion; Endokrinologi; Endocrinology; SLMV; paracrine regulation; LDCV; islets of Langerhans; autocrine regulation; GABA; diabetology;

    Abstract : 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). READ MORE

  4. 22. Nature of Large Vesicle Exocytosis in Pancreatic β-cells: Release of ATP and GABA

    Author : Jovita Karanauskaite; Islet cell physiology; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ATP; LDCV; Insulin; exocytosis; Compound Exocytosis; Calcium;

    Abstract : Several high resolution electrophysiological techniques such as measurements of cell membrane capacitance and amperometry are used to detect exocytotic events. A novel method was developed in this study based on the expression of P2X2 receptor channel in secreting cells. READ MORE

  5. 23. Investigation of Neuronal Protein Trafficking at the Molecular Scale

    Author : Martina Damenti; Ilaria Testa; Clive Bramham; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Endoplasmic Reticulum; Mitochondria; Arc Activity-regulated cytoskeleton-associated protein ; oligomerization; pRESOLFT; STED; event-triggered FCS; DNA-PAINT; STARSS; molecular dynamics simulations; Biological and Biomedical Physics; Biologisk och biomedicinsk fysik;

    Abstract : Neurons are polarized cells that encode information in the nervous system viaelectrochemical connections named synapses. The tuning of synapticconnections is enabled by a plastic protein trafficking system which operates atthe nanoscale to finely tweak the neuronal ultrastructure. READ MORE

  6. 24. The Role of Reactive Astrocytes in Brain Ischemia and Neurotrauma

    Author : Lizhen Li; Göteborgs universitet; []
    Keywords : astrocytes; intermediate filaments; GFAP; vimentin; reactive gliosis; brain ischemia; neurotrauma;

    Abstract : Astrocytes are the most abundant cell type in the central nervous system (CNS) and increasing evidence now suggests that they play an active role in various brain functions. Astrocytes are involved in the induction and maintenance of the blood brain barrier, as well as the induction and stabilization of neuronal synapses. READ MORE

  7. 25. Spatial control of postsynaptic proteins : a role in brain plasticity

    Author : Markus Kruusmägi; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Neurons communicate via synapses; the strength of each synapse is defined both pre and postsynaptically. Presynaptically, the strength of the synapse is defined by which neurotransmitter is being released and how much. On the postsynaptic membrane a corresponding receptor will receive the transmitter. READ MORE