Abstract

The alkaline elution technique has been adapted for use in the assessment of DNA damage induced in the livers and lungs of mice after administration of an alkylating agent, methylmethanesulfonate (MMS). At 4 h after administration of MMS, damage to DNA was readily demonstrable; the damage was repaired in liver by 24 h. The lung, particularly of the A/J mouse, exhibited an increased alkaline elution rate when compared to C57BL/6J, and repair was not entirely complete (as judged from the rate of alkaline elution of DNA) by 24 h. The rate of elution was dependent upon temperature. It is believed that this adaptation should have great utility in examining DNA repair in vivo.

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