Sökning: "septum"

Visar resultat 1 - 5 av 34 avhandlingar innehållade ordet septum.

1. 1. The Role of Lhx2 During Organogenesis : - Analysis of the Hepatic, Hematopoietic and Olfactory Systems

   Författare :Åsa Kolterud; Leif Carlsson; Stefan Thor; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; LIM-homeobox gene; Lhx2; fetal liver; hepatic stellate cells; hematopoietic stem cells; septum transversum; self-renewal; odorant receptor genes; olfactory epithelium; olfactory sensory neuron; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; molekylärbiologi; Molecular Biology;

   Sammanfattning : During embryonic development a variety of tissues and organs such as the lung, eye, and kidney are being formed. The generation of functional organs is regulated by reciprocal cell-cell interactions. Via the secretion of soluble molecules one type of cells affect the fate of their neighboring cells. LÄS MER

3. 2. Pulmonary atresia with intact ventricular septum epidemiology and outcome in children born in Sweden 1980-1999

   Författare :Britt-Marie Ekman-Joelsson; Göteborgs universitet; []
   Nyckelord :pulmonary atresia with intact ventricular septum; ventriculo coronary arterial communications; biventricular repair; univentricular palliation; myocardial perfusion; myocardial function; cardiopulmonary exercise; lung function; quality of life; mortality; outcome;

   Sammanfattning : Aims: To describe children born with pulmonary atresia with intact ventricular septum (PA-IVS) in Sweden between 1980 and 1999, the incidence and outcome of PA-IVS, to examine cardio-pulmonary outcomes in survivors and to evaluate their quality of life. Material and methods: Eighty-four subjects were identified. LÄS MER

4. 3. Serotonergic receptor subtypes in learning and memory : focus on 5-HT1A, 5-HT1B and 5-HT2A receptors

   Författare :Maria Lüttgen; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Serotonin; 5-HT1A receptor; 5-HT1B receptor; 5-HT2A receptor; acetylcholine; NMDA receptor; water maze; passive avoidance; septum; hippocampus; teaming; memory; immunohistochemistry; mRNA;

   Sammanfattning : The aim of this thesis was to study how serotonin (5-HT) receptor subtypes can influence hippocampus/amygdala-dependent teaming and memory using the water maze (WM) and the passive avoidance (PA) tasks in rodents, and to provide a cellular correlate to the behavioral results using histochemical methods. Glutamatergic neurons in the trisynaptic circuit of the hippocampus are believed to be important for spatial teaming and memory as well as synaptic plasticity. LÄS MER

5. 4. Neurochemical regulators of the septohippocampal pathway : role in spatial and aversive learning

   Författare :Elin Elvander Tottie; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Acetylcholine; muscarinic receptor; galanin; serotonin; 5-HT1A receptor; glutamate; NMDA receptor; water maze; passive avoidance; septum; hippocampus; learning; memory; spatial; aversive; emotional; cognition;

   Sammanfattning : The aim of this thesis was to investigate the significance of major neurotransmitters in the septohippocampal pathway for hippocampal-dependent learning and memory. The cholinergic and GABAergic neurons in the medial septal/vertical limb of the diagonal band of Broca area (MS/vDB) projecting to the hippocampus, constitute the septohippocampal pathway, which has been implicated in a number of important functions such as attention, anxietylike behavior and hippocampal-dependent learning and memory. LÄS MER

7. 5. Segmentation of Medical Images, Applications in Echocardiography and Nuclear Medicine

   Författare :Matilda Landgren; Matematik LTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Segmentation is an important task in all kinds of image analysis. In medical image analysis segmentation has a great clinical value since the aim could be to localize organs or pathologies in order to raise the quality of diagnoses. LÄS MER