Sökning: "myelination"

Visar resultat 6 - 10 av 26 avhandlingar innehållade ordet myelination.

  1. 6. Temporal dynamics of brain plasticity : characterizing brain structural changes during skill acquisition

    Författare :Tomás Mediavilla; Daniel Marcellino; Alexandra Badea; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Motor learning; brain plasticity; structural plasticity; magnetic resonance imaging; voxel-based morphometry; tractography; connectivity; motor cortex; posterior parietal cortex; cerebellum; vesicular glutamate transporter;

    Sammanfattning : Traditionally, structural plasticity in the human brain has been considered to follow a linear or asymptotic increase over the course of training. However, recent studies using structural MRI revealed transient increases in grey matter volume (GMV) with learning. LÄS MER

  3. 7. Neurons and glia in the peripheral nervous system : interactions in health and disease

    Författare :Filipa Bouçanova; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The peripheral nervous system (PNS) is composed of nerves and ganglia that connect the brain and the spinal cord (the central nervous system, CNS) to the outside world. The nerves contain the extensions (axons) of both sensory and motor neurons, which allow us to detect and respond to different stimuli. LÄS MER

  4. 8. Brain matter matters : renewal in the human brain

    Författare :Maggie Yeung Wong; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Many cells have a shorter life span than the organism itself and are continuously being replaced. However, for many cell types in the human body it is still largely unknown whether they turn over at all once development is complete. LÄS MER

  5. 9. Peripheral nerve reconstruction. Studies on cellular and acellular iso-, allo- and xenografts

    Författare :Martin Kvist; Malmö Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; acellular nerve graft; costimulation blockade; FK506; immunosuppression; nerve graft; nerve defect; nerve regeneration; nerve injury; nerve extraction; allograft; xenograft;

    Sammanfattning : The best results after a nerve injury with a defect are achieved by a nerve reconstruction procedure using autologous nerve grafts. However, limitations include insufficient amount of suitable donor material and donor site morbidity. The aim of the present thesis was to study alternative nerve grafts, i.e. LÄS MER

  7. 10. Schwann cells and mesenchymal stem cells as promoter of peripheral nerve regeneration

    Författare :Maria Cristina Mantovani; Mikael Wiberg; Giorgio Terenghi; Susan Shawcross; Lev Novikov; Liudmila Novikova; John W Haycock; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; peripheral nerve regeneration; Schwann cell; adult stem cell; myelin; senescence;

    Sammanfattning : The transplantation of primary Schwann cells (SC) has been shown to improve nerve regeneration. However, to monitor the survival of transplanted cells within the host, a stable labelling method is required. LÄS MER