[Dynamics of the nuclear DNA content in the liver, skeletal muscles and myocardium of the rat in the postmortem period (a microspectrophotometric study)].

A comparative microspectrophotometric analysis of changes in nuclear DNA in the liver, skeletal muscle and myocardium of noninbred male albino rats which had died of cerebrocranial injury was conducted during three days following death. A decrease in the content of nuclear DNA within an interval of 30-72 h can be depicted mathematically by regression curves of the type M(t) = e-at+b. The data obtained allowed one to mathematically show the postmortem changes in DNA of the test material.