the activities of n-acetyl-beta-glucosaminidase ( nag ) , beta-glucuronidase ( bg ) , acid alpha-naphthyl acetate esterase ( anae ) and alpha-naphthyl acetate esterase ( nae ) were determined by enzymatic assays of cell extracts of the diverse t-lymphocyte subpopulations , in order to follow their evolution with the maturation of the t-lymphocytes in the thymus .
C0007634
cell
C1515126
maturation