Sökning: "Axon"

Visar resultat 21 - 25 av 110 avhandlingar innehållade ordet Axon.

  1. 21. Biophysical modelling in diffusion MRI: The role of tissue microstructure and water exchange

    Författare :Markus Nilsson; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Diffusion; MRI; tissue microstructure; water exchange; Monte Carlo simulations; white matter;

    Sammanfattning : Diffusion MRI is widely used to study brain structure in vivo. While this technique is often applied to investigations of brain connectivity, it can also be used to infer specific information about the tissue microstructure; for example, to estimate the axon diameter. LÄS MER

  3. 22. Cutaneous effects of nerve injury : An experimental study in the rat

    Författare :Nenad Stankovics; Göran Lundborg; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : One of the most difficult tasks of the hand surgeon is to reach a satisfactory restoration of the nerve functions of the injuried hand. In spite of the use of meticulous microsurgery, the results of nerve repair are disappointing, particularly with respect to mixed nerve trunks. LÄS MER

  4. 23. Transducer properties of a mechanoreceptor : an electrophysiological and pharmacological study of the crayfish stretch receptor

    Författare :Jiahui Lin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :stretch receptor; Na channels; K channels; local anesthetics; calmodulin antagonist; patch clamp; voltage clamp;

    Sammanfattning : The abdominal stretch receptor organ of the crayfish, an analog to the human muscle spindle, contains one slowly adapting (SA) and one rapidly adapting (RA) receptor neuron. The general aims of this project were to elucidate, in the SA and RA neurons, the participation of voltagegated Na+ and K+ channels in overall transducer process and adaptation, and to study possible blocking agents specific to mechanosensitive (MS) channels. LÄS MER

  5. 24. Inter- and intracellular resistance and vulnerability in motor neuron diseases

    Författare :Jik Nijssen; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Amyotrophic lateral sclerosis (ALS) and spinal muscular atrophy (SMA) are fatal diseases presenting with degeneration and loss of lower motor neurons in the brainstem and spinal cord. However, oculomotor and trochlear motor neurons that control eye movement, are resistant until late stages of disease. LÄS MER

  7. 25. Hypoglycaemic neuropathy : Experimental studies in diabetic rats treated witn insulin implants

    Författare :Simin Mohseni; Anders A. F. Sima; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Insulin dependent diabetes mellitus is a metabolic disease that causes secondary complications such as peripheral neuropathy. it is generally believed that diabetic neuropathy is due to chronic hyperglycaemia. In order to understand the pathophysiology of diabetic neuropathy many workers have examined nerves from diabetic rats. LÄS MER