[Structural and functional status of chromatin in the cerebral cortex neurons after circulatory arrest in the rat].

On the 4th day after revivification of rats, subjected to blood circulation arrest, transcriptional activity of chromatin has been evaluated after Moor's method and the state of histones has been investigated in neuronal nuclei of the III, IV and V layers of the cerebral cortex sensomotor area. Both in intact animals and those, subjected to clinical death, the neurons of the cortical layers examined sharply differ in their transcriptional activity of chromatin. The lowest level of labelling is revealed in the IV, the highest--in the V layer.