Search for dissertations about: "gap junction"

Showing result 1 - 5 of 71 swedish dissertations containing the words gap junction.

  2. 1. Connexin43 in astroglial gap junctions. Regulation by age, neurotransmitters, GH and IGF-I

    Author : N David Åberg; Göteborgs universitet; []
    Keywords : Connexin43; rat; development; hypophysectomy; primary culture; ; mRNA; gap junction; somatotropin; IGF-I; serotonin; glutamate; ; brain region heterogeneity; calcium wave; astrocyte; astroglial cell; ; gap junctional coupling.;

    Abstract : Connexins form gap junctions that are aqueous pores allowing low-molecular (.... READ MORE

  4. 2. The Human Spiral Ganglion

    Author : Sven Tylstedt; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Otorhinolaryngology; human spiral ganglion; ultrastructural morphology; neural interaction; synaptophysin; connexin; membrane specializations; synapse; gap junction; tight junction; Otorhinolaryngologi; Otorhinolaryngology; Otorhinolaryngologi; Oto-Rhino-Laryngology; oto-rhino-laryngologi;

    Abstract : Our knowledge of the fine structure of the Human Spiral Ganglion (HSG) is still inadequate and new treatment techniques for deafness using electric stimulation, call for further information and studies on the neuronal elements of the human cochlea. This thesis presents results of analyses of human cochlear tissue and specimens obtained during neurosurgical transpetrosal removal of life-threatening meningeomas. READ MORE

  5. 3. Reactive gliosis in the injured brain: The effect of cell communication and Nrf2-mediated cellular defence

    Author : Heléne Andersson; Göteborgs universitet; []
    Keywords : Keywords: astrocyte; gap junction; Hmox1; microglia; Nrf2; Nqo1; oxidative stress; reactive gliosis;

    Abstract : Stroke and other brain injuries trigger an extensive glial cell response referred to as reactive gliosis. Reactive gliosis is characterized by hypertrophic and proliferating astrocytes, proliferating microglia and NG2-positive cells, which eventually form a bordering glial scar around the damaged area. READ MORE

  6. 4. Astrocytic communication and cell death during metabolic depression and oxidative stress

    Author : Christina Nodin; Göteborgs universitet; []
    Keywords : astrocyte; gap junction; ATP; ROS; oxidative stress; Annexin V; AIF; programmed cell death; Nrf2; scavenger; iodoacetate; SIN-1;

    Abstract : Stroke is a major cause of death and adult disability in the western world. Most often, stroke is caused by the occlusion of a brain artery. Within the perfusion territory of the occluded vessel, various degrees of necrotic and delayed programmed cell death will occur if the occlusion persists, leading to expanding tissue damage. READ MORE

  7. 5. Building Systems for Electronic Probing of Single Low Dimensional Nano-objects : Application to Molecular Electronics and Defect Induced Graphene

    Author : Syed Hassan Mujtaba Jafri; Klaus Leifer; Aidan Quinn; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Graphene; defect induced graphene; molecular electronics; nanoelectrodes; nanoparticles; conductivity; junction; nanomaterial; focused ion beam; surface functionalization; electrical characterization; Teknisk fysik med inriktning mot materialanalys; Engineering Science with specialization in Materials Analysis;

    Abstract : Nano-objects have unique properties due to their sizes, shapes and structure. When electronic properties of such nano-objects are used to build devices, the control of interfaces at atomic level is required. READ MORE