2.6.1.5	adrenaline	activation is independent of the concentration of tyrosine, maximal activation achieved with 7-10 micromolar of adrenaline	
2.6.1.5	dexamethasone	-	
2.6.1.5	dexamethasone	dexamethasone (5 mg) induces a significant increase in TAT activity, a further increase in TAT activity is not observed in the hepatocytes from the deficient rats, in contrast to the cells from the controls, when glucagon is added simultaneously with dexamethasone	
2.6.1.5	dopamine	slight activation	
2.6.1.5	metanephrine	slight activation	
2.6.1.5	noradrenaline	slight activation