[Activity of organelle-specific enzymes in rat organs during consumption of different amounts of protein].

Activity of enzymes from mitochondrial plasmatic membranes, lysosomes, peroxisomes and endoplasmic reticulum was studied in rat liver, kidney, spleen tissues and blood serum under various conditions of protein consumption. Excess of protein, up to 36%, did not affect distinctly the activity of the enzymes studied, whereas specific reactions of lysosomal and peroxisomal enzymes, which were especially distinct in liver tissue, were found in response to protein deficiency (4%). The data obtained suggest the possible functional interrelationship between the enzymatic systems of lysosomes and peroxisomes under conditions of adaptation to protein deficiency.