The concentration of dopa, dopamine and cysteinyldopa were measured in various parts of
the mature bovine eye, using a fluorescent assay. Special attention was paid to …

Modern techniques offer an opportunity for a more complete evaluation of melanin
production in the uvea and retinal pigment epithelium (RPE). By measuring the release of …

The hypothesis that only melanosomal catecholic amino acids contribute to melanin
formation was tested by studying adult bovine eyes in which pigment synthesis is …

Tyrosinase activity in crude extracts from various tissues of the adult bovine eye was
examined biochemically. Enzyme activity was measured by using l-3, 4 …

The tyrosinase activity in melanin‐forming tissues was investigated in a series of rats (6 days
to 1 year old), one cat 30 days old, and one 4 month old human fetus. The technique used …

Tyrosinase in crude extracts from the adult rabbit choroid and retina/retinal pigment
epithelium was found to be differently affected by the inhibitors sodium metabisulfite …

We examined tyrosinase activity in pigmented tissues from five human eyes. Tissue extract
was prepared in cholate-phosphate buffer by homogenization, centrifugation, trypsin …

The melanogenic activities in the eye of the adult gerbil (Meriones unguiculatus) have been
investigated and compared to those found in the B16 mouse melanoma model. Eye extracts …

We examined spectrophotometrically the ability of drugs to bind with dopa-auto-oxidation
melanin or tyrosinase-catalyzed dopa-melanin. Each drug, at 5× 10-5 M, was incubated at …

Norepinephrine and dopamine content of various tissues from albine and nonalbino (black
fur) rabbits were chemically determined. Although norepinephrine content of the …