blockade of metabolic pathways of some amino acids

acetoacetic acid albinism dihydroxyphenylalanine dopa fumaric homogentisic homogentisuria hypothyroidism lactate maleic melanin phenyl phenylacetic phenylacetylglutamine phenylalanine phenylketonuria phenylpyruvic thyroxine triiodthyronine tyrosine tyrosinosis