Translocations in mouse spermatogonia after exposure to unequally fractionated doses of X-rays

P. P.W. Van Buul, A. Léonard

    Research outputpeer-review

    Abstract

    The influence of various X-ray fractionation regimes on translocation induction in mouse spermatogonia was studied. Splitting a single exposure of 600 R into two fractions of 300 R separated by 24 h did not influence the translocation yield (7.58% vs. 8.35%). When the dose was given in the unequal fractions,100 R+500 R and 500 R+100 R, with the same 24 h between the fractions, the translocation frequency was significantly altered (10,19 and 4.94%, respectively). As a possible explanation of these findings it is assumed that the relatively resistant cells surviving the first fraction of the dose are sensitized towards translocation induction when receiving the second fraction of the dose.

    Original languageEnglish
    Pages (from-to)361-365
    Number of pages5
    JournalMutation Research - Fundamental and Molecular Mechanisms of Mutagenesis
    Volume25
    Issue number3
    DOIs
    StatePublished - Dec 1974

    Funding

    The work was supported by the international Atomic Energy Agency contract No. I349/RL/RB, the Association between Euratom and the University of Leiden, contract No. o52-64-I-BIAN, the J. A. Cohen Institute for Radiopathology and Radiation Protection, by Research Contract Ematom/C.E.N. o95 72-I-BIO B, and by grants from the "Fonds de la Recherche Scientifique l%ndamentale Collective".

    FundersFunder number
    CNRS - Centre National de la Recherche Scientifique
    International Atomic Energy Agency (IAEA)

      ASJC Scopus subject areas

      • Molecular Biology
      • Genetics
      • Health, Toxicology and Mutagenesis

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