Sökning: "neuron survival"

Visar resultat 1 - 5 av 78 avhandlingar innehållade orden neuron survival.

  1. 1. Neural Network Approaches To Survival Analysis

    Författare :Jonas Kalderstam; Beräkningsbiologi och biologisk fysik - Genomgår omorganisation; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Survival Analysis; Artificial Neural Networks; Machine Learning; Genetic Algorithms; Evolutionary Algorithms; Fysicumarkivet:2015:Kalderstam;

    Sammanfattning : Predicting the probable survival for a patient can be very challenging for many diseases. In many forms of cancer, the choice of treatment can be directly impacted by the estimated risk for the patient. This thesis explores different methods to predict the patient's survival chances using artificial neural networks (ANN). LÄS MER

  3. 2. The Enteric Nervous System, Plasticity and Survival

    Författare :Katarina Sandgren; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurology; Nitric oxide synthase; Neuropeptides; Neuronal survival; Lethal spotted mice; Interstitial cells of Cajal; Hirschsprung s disease; Cell cultures; Enteric nervous system; neuropsychology; neurophysiology; Neurologi; neuropsykologi; neurofysiologi;

    Sammanfattning : The thesis deals with plasticity in terms of neurotransmitter expression and survival of neurons in the adult enteric nervous system (ENS). Several motility disorders have been suggested to originate in developmental defects, neurodegeneration, or insufficient innervation by the ENS. LÄS MER

  4. 3. Neural Stem Cell Differentiation and Migration

    Författare :Anna Erlandsson; Karin Forsberg-Nilsson; Bengt Westermark; Christer Betsholtz; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; CNS; stem cells; neuron; PDGF; SCF; differentiation; migration; ERK; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin; Medicinsk biokemi; Medical Biochemistry;

    Sammanfattning : Neural stem cells are the precursors of neurons, astrocytes and oligodendrocytes. During neural development, the division of stem cells takes place close to the lumen of the neural tube, after which they migrate to their final positions within the central nervous system (CNS). LÄS MER

  5. 4. Effects of retinoic acid in the mouse olfactory sensory systems

    Författare :Maria Hörnberg; Staffan Bohm; Finn Hallböök; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; olfactory; retinoic acid; neuron survival; Molecular biology; Molekylärbiologi;

    Sammanfattning : A common characteristic in neurodegenerative diseases of the brain is death of specific neuronal populations. The lack of neuron proliferation and axon extension in most parts of the central nervous system leads to chronic loss of neurons in the case of injury or disease. LÄS MER

  7. 5. Roles of PDGF for Neural Stem Cells

    Författare :Mia Enarsson; Karin Nilsson; Bengt Westermark; Peter Eriksson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; CNS; stem cells; neuron; PDGF; proliferation; differentiation; ERK; microarray; transgenic mouse; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi;

    Sammanfattning : Stem cells are endowed with unique qualities: they can both self-renew and give rise to new mature cell types. Central nervous system (CNS) stem cells can give rise to neurons and glia. LÄS MER