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. 2017 Feb 8;28(1):64–76.

Table 3b.

Disorders of biogenic amine biosynthesis and transport

HVA 5-HIAA HVA/5-HIAA 3-OMD 5-HTP MHPG
TH graphic file with name ejifcc-28-064-e001.jpg graphic file with name ejifcc-28-064-e001.jpg ↓
TPH graphic file with name ejifcc-28-064-e001.jpg ↑ ↓
AADC graphic file with name ejifcc-28-064-e001.jpg graphic file with name ejifcc-28-064-e001.jpg graphic file with name ejifcc-28-064-e002.jpg ↑ ↓
VMAT2
DAT graphic file with name ejifcc-28-064-e002.jpg ↑

TH: tyrosine hydroxylase; TPH: Tryptophan hydroxylase; AADC: aromatic L-aminoacid decarboxylase;

VMAT2: vesicular monoamine transporter; DAT: dopamine transporter; HVA: homovanillic acid;

5-HIAA: 5-hydroxyindolacetic acid; 3-OMD: 3 orthomethyldihydroxyphenylalanine; 5-http: 5-hydroxytryptophan;

MHPG: 3-methoxy-4-hydroxyphenylglycol; BH4: tetrahydrobiopterin; BH2: dihydrobiopterin; Neo: neopterin; Sep: sepiapterin; Prim: primapterin; n: normal.

Note: Empty cells should be considered as normal values