Aloe vera (Liliaceae) Gel Inhibit stimulated granulocyte MMPs Inhibit tyrosine hydroxylase and 3,4-dihydroxyphenylalanine
Simultaneous liquid-chromatographic determination of 3,4-dihydroxyphenylglycol, catecholamines, and 3,4-dihydroxyphenylalanine
in plasma, and their responses to inhibition of monoamine oxidase.
The biochemistry of catecholamines--epinephrine, norepinephrine, 6-hydroxydopamine, 6-aminodopamine, 3,4-dihydroxyphenylalanine
(dopa), and dialuric acid--is well established.
These proteins contain the unusual amino acid 3,4-dihydroxyphenylalanine
(DOPA) which is believed to be the site of cross-linking.
On the other hand, tyrosine is degraded by UV light in the presence of air to 3,4-dihydroxyphenylalanine
(DOPA), ammonia, and a yellow-brown pigment.
evoked release of 3,4-dihydroxyphenylalanine
from the striatum in conscious rats studied by microdialysis.