Sökning: "perifer nerv"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden perifer nerv.
1. The Physical Axon : Modeling, Simulation and Electrode Evaluation
Sammanfattning : Electrodes are used in medicine for detection of biological signals and for stimulating tissue, e.g. in deep brain stimulation (DBS). For both applications, an understanding of the functioning of the electrode, and its interface and interaction with the target tissue involved is necessary. LÄS MER
2. Factors influencing nerve growth in situ and in vitro
Sammanfattning : Bakgranden till denna doktorsavhaodling är den problematik som uppstår efter en perifer nervskada, roreträdesvis i relation till handen eftersom den har så stor betydelse i vårt dagliga liv. En haod utan känsel fungerar dåligt och än sänne fungerar en handprotes. LÄS MER
3. Spinal Cord Processing of Sensory Information: Spatial Organization and Adaptive Mechanisms
Sammanfattning : Principles for sensorimotor transformation and plasticity in the spinal cord and functional repair in the root-avulsed spinal cord were studied. A comparative study confirmed that the nociceptive withdrawal reflex (NWR) system is composed of reflex modules, with each performing a finely tuned transformation of skin sensory input to activity in one muscle. LÄS MER
4. Tendon autografts for bridging nerve defects
Sammanfattning : A new method, where a tendon segment – a tendon autograft – was used as graft material for peripheral nerve reconstruction, was developed. Defects, 10-15 mm long, in rat sciatic nerves were bridged by various modifications of tendons. LÄS MER
5. The role of the MAP- and SAP- kinase pathways in the survival, proliferation and death of Schwann cells of the injured sciatic nerve
Sammanfattning : This thesis concerns alterations in signal transduction in Schwann cells as a response to nerve injury as well as their survival, proliferation and death. Enzymes and transcription factors belonging to the mitogen activated protein kinase (MAPK) and the stress activated protein kinase (SAPK) pathways were studied. LÄS MER