when the peripheral l-aromatic amino acid decarboxylase inhibitor , l-alpha-methyl-alpha-hydrazino-beta- ( 3,4-dihydroxyphenyl ) propionic acid ( hmd ) is administered prior to 5-hydroxytryptophan , the concentration of 5-hydroxytryptamine in kidneys does not rise , that of the brain increases slightly , and that of the adrenal rises markedly .
C0086045
concentration
C0006104
brain