[Hydration and structural state of liver DNA of rats exposed to radiation in the Chernobyl AES zone].

By methods of IR-spectroscopy, electrophoresis and piezomicrobalance the comparative study on hydration and structural state of liver DNA from rats both intact and exposed within the Chernobyl accident zone was conducted. Modification of primary and secondary DNA structure in irradiated animals demonstrate serious disturbance of hepatocyte genetic apparatus. This is responsible for previously found considerable morphologic and ultra-structural changes in rat liver tissue after prolonged exposure to low-level ionizing radiation in the Chernobyl accident zone.