These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Comparsion of the oxygen-enhancement ratio for gamma-ray-induced double-strand breaks in the DNA of bacteriophage T7 as determined by two different methods of analysis.
    Author: van der Schans GP, van der Drift AC.
    Journal: Int J Radiat Biol Relat Stud Phys Chem Med; 1975 May; 27(5):437-46. PubMed ID: 1080139.
    Abstract:
    Bacteriophage T7 was irradiated in a protecting medium under nitrogen and oxygen with 60Co gamma-rays. Double-strand breaks were measured by sucrose-gradient sedimentation and by boundary-sedimentation analysis. Both methods showed that the presence of oxygen during irradiation enhanced the production of double-strand breaks. This is at variance with a recent report which suggests that boundary-sedimentation analysis does not show an effect of oxygen. The discrepancy must be ascribed to differences in interpretation of the sedimentation data.
    [Abstract] [Full Text] [Related] [New Search]