[Dynamics of postmortem changes in the adrenergic nerve fibers of the cerebral arteries]

The authors studied the changes in the quantity and intensity of adrenergic nerve fiber fluorescence in the rat and human brain arteries every two hours after death at varying temperatures of keeping cadavers (18-20, 10, 4 degrees C). It was established that the differences in the temperatures had an appreciable effect on the duration of complete exposure of nerve fibers as compared with control. No significant reduction in the number of fluorescent conductors was seen for the longest period of time (up to 10 h in rats and up to 8 h in man) at a temperature of 4 degrees C. The relationships are defined between postmortem changes in nerve fiber fluorescence and their number under varying temperatures.