Transcription in sympathetic neurocytes of ageing (22 months) normally developing rats, partially sympathectomized by guanethidine, was studied with autoradiography. Beginning with the age of 12 months some experimental animals were given daily dose of 1 mg/ml of geroprotector, atsefen (centrophenoxine), in water solution. The time-course of death rate in animals aged 12-30 months was studied as well. A positive dose-dependent relationship between some ageing symptoms of sympathetic neurocytes of sympathectomized animals and their maximum life span was shown. Geroprotector atsefen were found to inhibit some ageing processes in sympathetic nerve cells, their maximum life span increasing simultaneously.