[Peptide hydrolase activity in brain tissues during the early stages of post-hypothermia period].

The acid peptidohydrolase activity in the homogenate, dissoluble and mitochondrial-lysosomal fractions of brain tissues of rats who have endured deep hypothermia was determined after their "active" warming for an hour and on the 1st, 2nd, 3d and 7th days after their self-warming. The "active" warming of rats who have endured deep hypothermia (19-20 degrees C) brings about the restoration of the acid peptidohydrolase activity in the subcellular brain tissue fractions. After self-warming the examined enzyme activity restores 7 days later. In the dynamics of the posthypothermic period a change in the acid peptide hydrolase distribution in fractions occurs on the 2nd-3d days.