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Zur Wirkung des Dysenterietoxins auf das Zentralnervensystem

Authors: Lotmar, Fritz;

Zur Wirkung des Dysenterietoxins auf das Zentralnervensystem

Abstract

Von dem Toxin des S h i g a K r u s e s c h e n Dysenteriebacillus ist es seit den Untersuchungen yon D o p t e r (1905), dann yon G u g g i s b e r g (1908) und K a r a s a w a (1910) bekannt, da[~ seine subcutane oder intravenSse Einverleibung beim Kaninchen L~hmungen erzeugt, denen umschriebene oder auch mehr verbreitete Ausf~lle der nervSsen Elemente haupts~chlich in den VorderhSrnern dcr grauen Substanz zugrunde liegen. Von den scharf umschriebenen Herden solcher Art gibt zun~chst Figur 1 eine Anschauung. Sie zeigt den einen yon zwei ziemlich symmetrisch ausgebildeten Herden der Lumbalanschwellung, die fast nur die medialen und dorsalen Partien der VorderhSmer verschont haben. Herde derselben Struktur fanden sich in einer grSBeren Versuchsreihe gelegentlich auch in den Deitersschen Kernen, der Substantia gelatinosa n. trigemini, dem Nucleus dentatus cerebelli, dem Oculomotoriuskern, dem Grol~hirnmark, endlich wesensverwandte auch im Corpus striatum und in der GroBhirnrinde. Sieht man ab yon den am schwersten gesch~idigten Partien des Herdes, in denen a l le zelligen Elemente zugrunde gegangen sein kSnnen, so ist es yon besonderem ]nteresse, dab dem mit gewaltiger Rarefizierung des Grundgewebes (des ,,Grau") einhergchenden Ausfall der Ganglienzellen eine amSboide Umwandlung der Glia parallel geht, die ebenso scharf wie jener Ausfall an die Grenzen des Herdes gebunden ist. Nimmt man nun hinzu, da~der Untergang der Ganglienzellen, bei aller Variation im einzelnen, durchweg unter dem Bilde akutester nekrobiotischer Verfliissigung des Zelleibes erfolgt, so bew~hrt sich hier auch an h e r d a r t i g e n Pro-

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citations
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BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
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