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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 70 (1972), S. 89-92 
    ISSN: 1437-1596
    Keywords: Ethyl Alcohol, Antagonism of Pyrithinol-HCl ; Alcohol Intoxication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung „Antagonistische Wirkung von Pyrithinol-HCl gegenüber Äthylalkohol, untersucht an einer cholinergen Synapse im Rückenmark.“ 1. An decerebrierten oder narkotisierten (Pentobarbital) Katzen wurde die Wirkung von Pyrithinol-HCl allein und in Verbindung mit Äthylalkohol auf die Aktivität einzelner Renshaw-Zellen (RZ) nach antidromer Reizung untersucht. 2. Durch Pyrithinol-HCl (40 mg/kg i.v.) wurde die RZ-Aktivität vermindert. 3. Nach vorheriger Gabe von Äthylalkohol (1,6 g/kg i.v.), die eine starke RZ-Aktivierung hervorrief, bewirkte Pyrithinol-HCl (40 mg/kg i.v.) eine Verminderung der RZ-Aktivität bis unter den Ausgangswert vor der Alkoholgabe. 4. Gabe von Alkohol (0,8 g/kg i.v.) nach Pyrithinol-HCl (40 mg/kg i.v.) bewirkte an der RZ keine Aktivitätssteigerungen mehr. 5. Da an Gamma-Motoneuronen die stark drosselnde Wirkung von Alkohol durch Pyrithinol-HCl nicht aufgehoben wurde, ist anzunehmen, daß Pyrithinol-HCl im Rückenmark eine Schutzwirkung gegenüber Alkohol speziell an der cholinergen RZ-Synapse entfaltet.
    Notes: Summary Pyrithinol-HCl (40 mg/kg i.v.) decreased in cats the activity of individual Renshaw cells in the spinal ventral horn which are known to be excited via typically cholinergic motor axon collaterals. On the other hand this substance prevented the excitatory action which ethyl alcohol (0.8–1.6 g/kg i.v.) normally exerts upon the Renshaw cells. No protective effect of pyrithinol-HCl was found against the alcohol induced depression of gamma motoneurones. It is assumed from the results that pyrithinol-HCl exerts its protective action specifically upon cholinergic systems.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 61 (1983), S. 369-372 
    ISSN: 1432-1440
    Keywords: Fibronectin ; Hemoperfusion ; Drug intoxication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Fibronectin is a glycoprotein belonging to the opsonic system and able to mediate phagocytosis by the reticuloendothelial system (RES). Severe intoxications are often followed by a diminished capacity of RES-clearance. Patients with severe drug intoxications have lower concentrations of fibronectin in plasma than healthy persons. Charcoal hemoperfusion lowers plasma fibronectin by an average of 4.7 mg/dl. Initial values below 15 mg/dl did not undergo a significant decrease in the case of hemoperfusion. Regarding these findings, determination of plasma fibronectin seems a useful parameter for monitoring RES function during treatment of drug-intoxicated patients by hemoperfusion.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-2013
    Keywords: Random inputs ; Cross-correlation ; Nonlinear analysis ; Synchronous inputs ; Renshaw cells ; Dorsal horn neurones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We here present a method to study the interaction of parallel neural input channels regarding their effects on a neurone. In particular, the method allows to disclose the effects of oligosynaptic pathways that may exist in parallel to direct monosynaptic connections to the cell. Two (or more) inputs (nerves) are stimulated with random patterns of stimuli. The response of the cell to these patterns is evaluated by the computation of peristimulus-time histograms (PSTHs). One of the two stimulus trains is selected as the one to yield reference events for the PSTH computation. From this stimulus train are selected those stimuli as reference events which are preceded, at defined mean intervals, by stimuli in the same or a parallel channel. These “conditioning” stimuli are determined (1) separately from each single stimulus train and (2) concomitantly from the two trains as events occurring simultaneously in both. The effects exerted by these various conditioning events on the effects of the “test” pulses on the cell response yield insights into the interactions between the two (or more) inputs. These methods are demonstrated on spinal Renshaw cells activated by independent random stimulation of two muscle nerves and on dorsal horn neurones responding to cutaneous nerve stimulation.
    Type of Medium: Electronic Resource
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