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  • Title: Similar ultraviolet action spectra for the protection by glycerol of transforming DNA against single-strand breaks and inactivation of biological activity.
    Author: Peak JG, Peak MJ.
    Journal: Radiat Res; 1984 Mar; 97(3):570-5. PubMed ID: 6427841.
    Abstract:
    An action spectrum for the protection of purified DNA by glycerol against the induction of single-strand breaks in the DNA by ultraviolet (uv) light is described. Protection was not observed below 300 nm, was maximal between 334 and 365 nm, and decreased at 405 nm. This spectrum closely matched the spectrum for the protection by glycerol against the inactivation of biological transforming activity by near uv, described previously. Also, deviations from the reciprocity rule are similar for inactivation of transforming activity and for induction of DNA breaks by 365-nm radiation. That is, the deviations for the two end points are quantitatively the same, such that high fluence rates are less effective than low fluence rates.
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