title: [Influence of a preliminary irradiation once or twice on radioresistance of mice*].
abstract: The radioresistance of mice was tested in order to find out in which way it was influence by one or two preliminary irradiations. The thirty-day survival rate after a single total irradiation was taken as a criterion of the radioresistance. Only one test group showed a significant increase of radioresistance after two preliminary irradiations, whereas the resistance of three other groups was reduced remarkably after irradiation doses of 300 resp. 400 R. From these facts we draw the following conclusion: either radiotoxins and the remote effects produced by them are only playing a minor role in NMRI/Han mice or these mice are particular "low-responders" as far as the produciton of antibodies against radiotoxins is concerned.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D008297:Male; D051379:Mice / Q000528:radiation effects*; D011829:Radiation Dosage; D011830:Radiation Effects; D013997:Time Factors; D014118:Toxins, Biological
chemical_list: D014118:Toxins, Biological
vernacular_title: Uber den Einflubeta einer ein- und zweimaligen Vorbestrahlung auf die Strahlenresistenz von Mäusen