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  • Hirntiefenstimulation  (1)
  • Liver transplantation  (1)
  • Neuromuscular disorders  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European archives of psychiatry and clinical neuroscience 230 (1981), S. 55-61 
    ISSN: 1433-8491
    Keywords: Cerebral self-stimulation ; Mediobasal thalamus ; Addiction-like behavior ; Postamputation pain ; Hirntiefenstimulation ; Reizsucht ; Mediobasaler Thalamus ; Postamputationsschmerz
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Nach mehrmonatiger ununterbrochener elektrischer Selbstreizung des mediobasalen Thalamus über eine Hirntiefenelektrode bei einem Patienten mit therapieresistenten Phantomschmerzen wird eine Verhaltensänderung beschrieben, die suchtähnlich wirkt. Gleichzeitig kommt es zu einer testpsychologisch erfaßten Störung im HAWIE-, Benton- und Hooper-VOTTest sowie in den Konzentrationstesten. Nach Absetzen der Reizung bilden sich die beschriebenen Störungen nach vorübergehenden Entzugserscheinungen wieder zurück.
    Notes: Summary In a patient with postamputation pain a continuous self-stimulation of the mediothalamic system by a chronic deep brain electrode induced a change in behavior, similar to addiction. At the same time various psychological tests (HAWIE, Benton, Hooper-VOT and concentration tests) were significantly disturbed. After interruption of the deep brain stimulation all induced psychic abnormalities normalized within few days.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of applied physiology 83 (2000), S. 144-150 
    ISSN: 1439-6327
    Keywords: Key words Surface electromyogram ; Motor unit ; Voluntary contraction ; Neuromuscular disorders ; Signal processing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Information about the structural and functional characteristics of the motor unit (MU) is highly relevant for the diagnosis of neuromuscular disorders. Electromyography (EMG) is a suitable method for obtaining the information needed. The problem is the separation of the activity of one MU from others which are simultaneously active. Such investigations of single MU activity have commonly used invasive methods, e.g. employing a needle or a wire. Conventional surface-EMG methods have limited resolution and detect, at high contraction levels, multiple MU superimposed one on the other. The separation of the activity of a single MU can be achieved in a non-invasive way when highly specialised acquisition techniques are used. One approach, called high spatial resolution EMG (HSR-EMG), is based on the use of multi-electrode arrays in combination with a two-dimensional Laplace filter. The HSR-EMG permits the completely non-invasive detection of single MU activity even during maximal voluntary contractions. First applications have shown that the method provides a deeper insight into the functional and structural characteristics of the MU. In this paper the application of HSR-EMG to the diagnosis of neuromuscular disorders will be presented, and the latest results will be given of its application in the evaluation of treatment of patients with plexus lesion.
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  • 3
    ISSN: 1435-2451
    Keywords: Liver transplantation ; Active enhancement ; Polyspecific antigen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Aktives Enhancement mit spenderspezifischem Antigen ist bei der klinischen Kadaver-Organtransplantation nicht praktikabel. Deshalb wurde der Versuch gemacht, ein aktives Enhancement von orthotopen Hundeleberallotransplantaten mit polyspezifischem Antigen zu erzielen. Die 17 Tiere der Kontrollgruppe überlebten durchschnittlich 6,9 ± 1,5 Tage. 6 Empfänger (Gruppe 3) erhielten 750 mg/kg polyspezifisches halblösliches (PSEA 20) Antigen, welches aus 20 Milzen hergestellt wurde, zusammen mit 10 mg/kg Prednisolon 15, 8 und 1 Tag vor der Transplantation. Die durchschnittliche Überlebensdauer in dieser Gruppe betrug 10,1 ± 2,0 Tage (P 〈 0,01, gegen die Kontrollgruppe). Weitere 6 Hunde (Gruppe 4) wurden wie die Tiere de Gruppe 3 vorbehandelt; jedoch wurde das Antigen hier aus 70 Nilzen hergestellt (PSEA 70). Die Überlebensdauer war sehr unterschiedlich: 3 Tiere überlebten mehr als 3 Wochen, die anderen 3 starben 1, 7 und 8 Tage nach der Transplantation unter Zeichen der beschleunigten Abstoßung. Spender und Empfänger waren in keinem Fall LD-identisch, aber ein nahezu identisches Spender-Empfänger-Paar zeigte einen besseren Enhancement-Effekt. Die Empfänger mit der beschleunigten Abstoßung zeigten ungewöhnlich hohe Lymphocytotoxin-und Hämagglutinin-Präsenz, länger überlebende Tiere niedrige Antikörper-Titer. Bei allen Empfängern mit starker Rejektion war die Leukocyten-Migration inhibiert. Rosetten-bildende Lymphocyten waren nach dreimaliger Antigenapplikation vermehrt im Blut nachweisbar und blieben danach konstant.
    Notes: Summary Because it is not possible to use donor specific antigens for the induction of immunological enhancement in cadaveric organtransplantation, attempts were made to use polyspecific antigens in the enhancement of orthotopic canine liver allotransplants. Of 34 mongrel recipients, 17 controls survived for 6.9 ± 1.5 days. Six recipients (group 3) were given 750 mg/kg polyspecific, semisoluble antigen prepared from 20 spleens (PSEA 20) together with 10 mg/kg prednisolone on days 15, 8 and 1 before transplantation. The mean survival time of this group was 10.1 ± 2.0 days (P 〈 0.01 compared with the control group). Six other recipients (group 4) were treated similiarly, except that the antigen had been prepared from a pool of 70 spleens (PSEA 70). Survival was variable here: 3 survived for more than 3 weeks and the other 3 died on days 1, 7 and 8 postoperatively, with signs of accelerated rejection. Donors and recipients were not identical for LD determinants, but one donor recipient pair with near identity showed a higher degree of enhancement. The recipients displaying accelerated rejection had markedly higher lymphocytotoxic and haemagglutinating antibodies. Animals surviving for longer periods had low antibody titres. In addition, all recipients progressive rejection were found to show inhibition of leucocyte migration. After three antigen doses rosette-forming lymphocytes were present in increased numbers in peripheral blood, and remained unchanged thereafter.
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