Sökning: "locomotor activity"

Visar resultat 26 - 30 av 98 avhandlingar innehållade orden locomotor activity.

  1. 26. Modeling disturbances of cholinergic systems : possible relevance for schizophrenia

    Författare :Anna Mattsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Cholinergic; nucleus basalis; 192 IgG-saporin; schizophrenia; locomotor activity; dopamine; microdialysis; memory; MRI;

    Sammanfattning : Schizophrenia is a severe, chronic mental disorder. The etiology remains unknown but alterations in cholinergic neurotransmission is one, among other, disturbances in the brain that have been implicated in schizophrenia. LÄS MER

  3. 27. Physiological roles of A1 and A2A adenosine receptors : studies using genetically modified mice

    Författare :Jiang-Ning Yang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Adenosine receptors; genetically modified mice; preconditioning; tolerance; heart rate; body temperature; locomotor activity; caffeine;

    Sammanfattning : Since adenosine receptors were identified and cloned, their roles in animals and humans have been extensively studied. Because pharmacological tools have limitations, we have used mice in which adenosine receptors have been deleted to further study their roles under physiological and pathophysiological conditions. LÄS MER

  4. 28. Recovery from focal brain ischemia induced by extradural compression in diabetic and non-diabetic rats

    Författare :Tiago J T Prazeres Moreira; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Focal ischemia; locomotor activity; lever-press task; neurodegeneration; hyperglycemia; Goto-Kakizaki rats; Fluoro-Jade; heme-oxygenase; astrocytes; microglia.;

    Sammanfattning : Cerebrovascular disease and head trauma are among the leading causes of death and disability. In addition to severe motor disturbances, ischemia resulting from stroke or traumatic brain injury (TBI) can cause mild to severe cognitive deficits. LÄS MER

  5. 29. Neurobiological basis of the nicotine withdrawal reaction : an experimental analysis

    Författare :Bengt E Hildebrand; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :rat; nicotine; nicotine withdrawal; behavior; locomotor activity; microdialysis; intracerebral injections; mesolimbocortical; dopamine; ventral tegmental area; nucleus accumbens; amygdala; immediate-early genes; c-fos;

    Sammanfattning : The mesolimbocortical dopamine (DA) system is pivotal for the mediation of the reinforcing effects of many dependence-producing drugs. It consists of cell bodies in the ventral tegmental area (VTA) that project to e.g. the nucleus accumbens (NAC), the central nucleus of amygdala (CNA) and the medial prefrontal cortex. LÄS MER

  7. 30. Perinatal asphyxia in the rat : a morphological and functional analysis of the dopamine systems and dopamine-mediated behaviours in a novel experimental model

    Författare :Yong Chen; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Rat; Perinatal asphyxia; Dopamine; Noradrenaline; Dopamine receptors; Substantia nigra; Ventral tegmental area; Striatum; Accumbens nucleus; Locomotor activity; Attention disorders; bFGF; Fos; pH; pyruvate; lactate; glutamate; aspartate.;

    Sammanfattning : Asphyxia during labour in the human being is one of the important paediatric complications which can lead to various degree of injuries in the central nervous system. No efficient therapy is available at present. LÄS MER