Sökning: "neuron density"

Visar resultat 1 - 5 av 21 avhandlingar innehållade orden neuron density.

  1. 1. Aspects of the human enteric nervous system : A study of the normal development and of Hirschsprung's disease

    Författare :Tomas Wester; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; enteric nervous system; Hirschsprung s disease; intestinal neuronal dysplasia; neuron density; nitric oxide; bcl-2; interstitial cells of Cajal; c-kit; human; fetal; development; Kirurgi; Surgery; Kirurgi; Surgery; kirurgi;

    Sammanfattning : Thirty patients with Hirschsprung's disease (HD) who underwent Rehbein's anterior resection, using a circular stapler to perform the anastomosis, were evaluated retrospectively. The postoperative complication rate and long-term functional outcome were similar to those reported by other investigators using the same and other techniques. LÄS MER

  3. 2. Odour detection in the desert locust, Schistocerca gregaria: antennal structure and function

    Författare :Samuel Adhola Ochieng'; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; insect antennae; Olfaction; chemoreceptors; receptor neuron; electrophysiology; aggregation pheromone; SEM; TEM; Djurfysiologi; Animal physiology; Animal ethology and psychology; Djurs etologi och psykologi;

    Sammanfattning : The desert locust, Schistocerca gregaria, is a polymorphic insect that occurs in two morphological and physiological distinct phases, solitary and gregarious, depending on population density. The two phases are reversible at any developmental stage. The gregarious phase produces and uses stage-specific pheromones, that keep the swarm together. LÄS MER

  4. 3. Identification of novel Wnt/PCP signaling regulators and their role in midbrain dopaminergic neuron development and Parkinson's disease

    Författare :Alena Salašová; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Wnt signaling controls a wide spectrum of complex cell responses during prenatal development, in the adulthood and during disease. In this doctoral study, we have identified and explored novel regulatory components of Wnt/Planar Cell Polarity (PCP) pathway and their function in various cellular processes during embryogenesis and central nervous system (CNS) development. LÄS MER

  5. 4. Photoreceptor degeneration, second order neuron remodeling and glia reactivity in an in vivo and in vitro model of retinal neurodegeneration

    Författare :Tanzina Mollick; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biomedicin; Biomedicine;

    Sammanfattning : Photoreceptors have the ability to last during the entire lifespan of an individual. Being the first line of neurons in the visual transduction pathway, their health and maintenance is eminent for proper retinal function. However, photoreceptors are susceptible to neurodegenerative retinal dystrophies. LÄS MER

  7. 5. Wnt signalling in the development of ventral midbrain dopaminergic neurons

    Författare :Gonçalo de Sá e Sousa de Castelo-Branco; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Dopaminergic Neuron; Ventral Midbrain Development; Writs; Dickkopf; beta-catenin; GSK-3beta; Stem Cells; Neural Precursors;

    Sammanfattning : Dopaminergic (DA) neurons in the ventral midbrain (VM) are one of the major cell types lost in Parkinson's disease (PD). Proof-of-principle exists for cell replacement therapies for PD, but wider application is halted by the unavailability of abundant sources of DA neurons. Stem cells might constitute one of these sources. LÄS MER