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Tyrosine 3-monooxygenase Aromatic-L- amino-acid decarboxylase Dopamine beta- hydroxylase Phenylethanolamine N- methyltransferase Epinephrine Epinephrine Epinephrine L-Tyrosine Sapropterin O2 L-Dopa Dihydrobiopterin H2O Dopamine CO2 Ascorbic acid O2 Norepinephrine Dehydroascorbic acid H2O S-Adenosylmethionine S-Adenosylhomocysteine Fe2+ Pyridoxal 5'-phosphate Sympathetic Nervous System Parasympathetic Nervous System Pyrroloquinoline quinone Copper Adrenal Medulla Cell Kidney Adrenal Medulla Activation Inhibition Nervous System Bloodstream
TH DDC DBH PNMT Epinephrine Epinephrine Epinephrine L-Tyrosine Sapropterin Oxygen L-Dopa Dihydrobiopterin Water Dopamine Carbon dioxide Ascorbic acid Oxygen Norepinephrine Dehydroascorbic acid Water S- Adenosylmethionine S- Adenosylhomocysteine Sympathetic Nervous System Parasympathetic Nervous System