Search for dissertations about: "Morris water maze"

Showing result 21 - 25 of 30 swedish dissertations containing the words Morris water maze.

  2. 21. Cholinergic and dopaminergic aspects of dementia in Parkinson's disease: postmortem neuropathological findings and modeling of cognitive dysfunction in rodents

    Author : Helene Hall; Brain Repair and Imaging in Neural Systems (BRAINS); []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; alpha-synuclein; animal model; choline acetyltransferase; cholinergic neurons; cognition; dementia; dopaminergic neurons; Lewy bodies; Parkinson s disease; magnetic resonance spectroscopy;

    Abstract : Motor symptoms are currently considered the first clinical hallmark of Parkinson’s disease (PD). They develop as a result of dopamine loss in the striatum, subsequent to the progressive neurodegeneration of dopamin- ergic neurons in the substantia nigra. READ MORE

  4. 22. Behavioral effects of female sex steroid hormones : models of PMS and PMDD in Wistar rats

    Author : Magnus Löfgren; Torbjörn Bäckström; Inga-Maj Johansson; Per Södersten; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; PMS; PMDD; rats; progesterone; estradiol; behavior; individual response; stress interaction; tolerance; withdrawal; learning and memory; anxiety.; Biological research on drug dependence; Biologisk beroendeforskning; Endocrinology; Endokrinologi; Obstetrics and gynaecology; Obstetrik och gynekologi; Pharmacological research; Farmakologisk forskning; Obstetrics and gynaecology; Obstetrik och gynekologi; Psychology; Psykologi; obstetrik och gynekologi; Obstetrics and Gynaecology;

    Abstract : Background Animal models can be used to mimic human conditions of psychopathology, and also as pre-clinical models to evaluate candidate drugs. With hormonal treatment it is possible to produce behavior in the rat which corresponds to the mental symptoms of pre-menstrual syndrome (PMS), and pre-menstrual dysphoric disorder (PMDD). READ MORE

  5. 23. Differential effects of voluntary running on hippocampal plasticity in the adult rat brain

    Author : Andrew Stuart Naylor; Göteborgs universitet; []
    Keywords : exercise; hippocampus; stress; progenitor proliferation; neurogenesis; trophic factors; frontal cortex; spatial memory; rat; pCREB; endogenous opioids;

    Abstract : The continuation of neuronal birth from dividing neural stem cells in the dentate gyrus of the hippocampus throughout adulthood is known to play an important role in maintaining normal hippocampal function, such as memory and learning. Negative alterations in the levels of adult neurogenesis have also been linked to several neurodegenerative diseases, including Alzheimer s disease and mood disorders such as depression. READ MORE

  6. 24. Automated behavioral phenotyping of inbred mouse strains and mouse models of Alzheimer disease

    Author : Alina Codita; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Behavioral characterization of various mouse strains created as models for human diseases such as Alzheimer disease requires robust phenotyping methods. Previous work on inbred mouse strains has shown that some of the widely used behavioral methods yield inconsistent results across laboratories, in spite of standardization efforts. READ MORE

  7. 25. Tolerance and injury mechanisms in the developing CNS

    Author : Malin Gustavsson; Göteborgs universitet; []
    Keywords : hypoxia-ischemia; neonatal; brain; PARP-1; tolerance; global gene expression; apoptosis; cerebral blood flow;

    Abstract : The pathophysiological mechanisms underlying the development of hypoxic-ischemic (HI) brain injury has been the subject of extensive research yet a neuroprotective strategy to limit its progression is lacking.OBJECTIVES: The aim of the present thesis was to obtain a better understanding of the mechanisms involved in neonatal HI, specifically to study I) the involvement of Poly ADP-ribose) polymerase (PARP)-1 in HI, II) the effect of hypoxic PC on brain injury and function after HI in the long-term perspective, III) the effect of hypoxic PC on global gene expression, in particular the involvement of apoptosis related genes, and IV) the vascular response to hypoxic PC. READ MORE