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Formation and repair of DEB-induced DNA double strand breaks in V79, V-H1, and V-H4 cells. Single cell electrophoresis (comet assays) was performed on cells prior to and following exposure to 15 µM DEB as described in the Methods section. The data represent the percent of cellular DNA present in the “comet tail” plus the SEM, n = 3 or more. T0; pre-DEB exposure, T3; following 3 h of DEB exposure, R3; 3 h post-DEB exposure, R24; 24 h post-DEB exposure.
