[Lymphocyte succinate dehydrogenase and acid phosphatase activity in infants on artificial feeding with a varying protein content in the diet].

The activity of succinate dehydrogenase and acid phosphatase in blood lymphocytes was studied in healthy children of the first half year of life kept on formula feeding with the adapted milk mixtures "Malyutka" and "Malysh". The content of protein in the children's diet varied over the range of 2-2.5; 3-3.5 and 4-4.5 g/kg. The activity of succinate dehydrogenase has been shown to be related to the protein content in the diet. The results obtained point to the possibility of assessing this activity as an additional method for determination of the optimum protein content in formula feeding.