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  • Immediate oxygen therapy prevents brain cell injury in carbon monoxide poisoned rats without loss of consciousness
    Bunc, Matjaž ...
    In CO-poisoned patients without loss of consciousness no significant long-termfunctional differences in outcome have been shown in any hyperbaric versus normobaric oxygen studies. Since brain ... histology changes cannot be studied in CO-poisoned patients we evaluated the efficacy of normobaric and hyperbaric oxygen therapy in preventing brain cell injury in CO-poisoned animals without loss of consciousness. Wistar rats without loss of consciousness after exposure to 3000ppm of CO for 60 min were exposed to ambient air (group 1), 100% oxygen at a pressure of 1 bar (group 2) and 100% oxygen at a pressure of 3 bar (group 3). The rats were sacrificed after two weeks, brain samples were stained with hematoxylin-eosin and a percentage of pyknotic cells in hippocampus was reported. Analyses of differences in percentage of pyknotic cells between different kinds of therapy showed that the percentage of pyknotic cells of the second group (2.3 +- 1.2%) treated with normobaric oxygen and the third group (4.5 +- 4.0%) treated with hyperbaric oxygen were similar, and both of them were significantly different,with a much lower percentage of pyknotic cells, from the first groupleft on ambient air (47.7 +- 10.0%). In conclusion, immediate normobaric and yperbaric oxygen therapy equally prevents hippocampal cell injury in CO-poisoned rats without loss of consciousness.
    Vir: Toxicology. - ISSN 0300-483X (Vol. 225, no. 2/3, 2006, str. 138-141)
    Vrsta gradiva - članek, sestavni del
    Leto - 2006
    Jezik - angleški
    COBISS.SI-ID - 21495257

vir: Toxicology. - ISSN 0300-483X (Vol. 225, no. 2/3, 2006, str. 138-141)
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