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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 227 (1982), S. 229-238 
    ISSN: 1432-1459
    Keywords: Paraneoplastic syndromes ; Carcinoma, bronchogenic ; Encephalitis ; Hypoventilation ; Dystonia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei einem 55 Jahre alten Patienten mit bekanntem Bronchialcarcinom entwickelten sich dystone Bewegungsstörungen des rechten Armes, Schluckbeschwerden und eine progrediente Kieferklemme. Hinzu kamen horizontale Blickparese, ataktische Störungen und Verminderung der Vibrationsempfindung. Vor dem Tode bestand neben kompletter Ophthalmoplegie und nahezu vollständiger Kiefersperre eine zentrale Hypoventilation. Die neuropathologische Untersuchung zeigte das Vorliegen von Hirnstammencephalitis, Ganglioradikuloneuritis, Hinterstrangdegeneration des Rückenmarkes und geringem Purkinje-Zell-Ausfall im Kleinhirn. Die Veränderungen werden als kombiniertes paraneoplastisches Syndrom erklärt. Die klinisch imponierenden Symptome der zentralen Hypoventilation und dystonen Bewegungsstörung werden beschrieben. Mögliche morphologische Korrelate werden diskutiert.
    Notes: Summary A 55-year-old patient with known lung cancer was admitted with dystonia of the right arm, lockjaw, horizontal gaze palsy and dysphagia. Prior to death total ophthalmoplegia and central hypoventilation developed. Postmortem examination showed brainstem encephalitis, gangioradiculoneuritis, posterior column degeneration and loss of cerebellar Purkinje cells. These changes are considered to constitute a combined paraneoplastic syndrome. The dystonic movement disorder and central hypoventilation and their possible morphologic correlates are discussed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 347 (1993), S. 28-33 
    ISSN: 1432-1912
    Keywords: Ultradian rhythm ; Hypothalamus ; Pushpull cannula ; Dopamine ; Noradrenaline ; Adrenaline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To investigate the patterns of catecholamine release in the brain, the hypothalamus of conscious, freely moving rats was superfused through a push-pull cannula with artificial cerebrospinal fluid and the catecholamines dopamine, noradrenaline and adrenaline were determined in the superfusate radioenzymatically. Superfusate was continuously collected in time periods of 20 min for at least 20h. Dopamine, noradrenaline and adrenaline release rates fluctuated according to an ultradian rhythm with a frequency of 1 cycle/92 min (dopamine and noradrenaline) or 99 min (adrenaline). Additionally, the three catecholamines were released according to an ultradian rhythm with the following frequencies: noradrenaline and adrenaline 1 cycle/ 12 h, dopamine 1 cycle/8 h. The release rates of dopamine and adrenaline were similar during light and dark periods, while the release rate of noradrenaline in the dark period was slightly lower than that during the light period. It is concluded that in the hypothalamus of the conscious rat the release rates of dopamine, noradrenaline and adrenaline fluctuate according to two ultradian rhythms with different frequencies.
    Type of Medium: Electronic Resource
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