[Nucleic acid and protein concentration in the anterior horn cells of the spinal cord in rats during prolonged motor activity coupled with sleep deprivation].

The rats were placed in a cilindrical tretbahn 50 cm in diameter, being rotated with a constant speed of 2.3 RPM. After 24 and 48 hours of moving activity, the rats were decapitated, lumbal spinal cord being dissected, fixed and utilized for the cytospectrophotometrical determination of RNA and protein contents in neurone and glial cells. RNA content per a cell decreased by 24 and 12 per cent in neurones and glial cells, correspondingly, after the 24 hour moving activity. This content increased in neurones by 49 per cent and became normalized in glial cells after the 48 hour period. The protein content increased after the moving period by 57 and 20 per cent for neurones and glial cells, correspondingly.