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  • Title: [Role of Clostridium and its toxin in pseudo-membranous colitis (author's transl)].
    Author: Bryskier A, Doll J, Labro MT, Andrieu J.
    Journal: Ann Biol Clin (Paris); 1981; 39(1):1-8. PubMed ID: 7011118.
    Abstract:
    At present many authors consider that pseudo-membranous colitis is of bacterial origin. The main pathogenic agent is Clostridium difficile. It is not easy to isolate this organism in the stool, selective media are under study. It liberates a lipo-glycoprotein exotoxin during lysis. It is only partially purified, its structure is not fully elucidated. Its molecular weight is not yet precisely determined. It consists of several polymerised polypeptide fragments of molecular weight 50 000. It is a thermolabile acid and alkaline sensitive cytotoxin which acts on the cell membranes and the ileo-caeco-colonic mucosa of man and animals. Clostridium difficile is transmissible by a small number of high risk carrier subjects who are potentially patients with pseudo-membranous colitis. Antibiotic therapy may lead to unbalance of the ecosystem represented by the bacterial flora of the digestive tract and favour the multiplication of a resistant strain to the administered antibiotic. The appearance of pseudo-membranous colitis requires the association of sufficient bacterial development (equal or greater than 10(7) germs per gram of stools) and the liberation of a cytotoxin. The pathogenic treatment consists of antibiotic therapy by Vancomycin or Metronidazole which seems, at present, the most active on the germs and a toxin absorbent, such as Cholestyramine, Coliptol hydrochloride or Heavy metals.
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