aspartate aminotransferase ( asat ) and alanine aminotransferase ( alat ) activity was measured in a group of 81 healthy subjects over 70 years of age and another of 180 younger persons , in order to investigate histograms and means of aminotransferase values in both groups and the variation in stimulation of these enzyme activities by pyridoxal 5'-phosphate ( p5p ) added in vitro .
C0004002
aspartate aminotransferase
C0002594
aminotransferase