Determinants of cardiac tyrosine hydroxylase activity during exercise-induced sympathetic activation in humans

Research shows that cardiac tyrosine hydroxylation is boosted by exercise in human beings. The sympathetic nervous system releases more of the biochemical cardiac norepinephrine than dihydroxyphenylalanine following stimulation from the enzyme tyrosine hydroxylase. The turnover rate of the neurotransmitter norepinephrine and related levels in tyrosine hydroxylation are considered.