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

Dopamine, noradrenaline, and adrenaline were assayed with HPLC in the light adapted
retinae of carp, frog, chicken, pigeon, rat, guinea-pig, rabbit, cat, pig and cow. Dopamine …

Using high performance liquid chromatography (HPLC) and electrochemical detection, a
major substance corresponding to noradrenaline was identified in crude perchloric acid …

The uptake, turnover and release of norepinephrine were studied in the rat eye as a function
of its pigmentation. The endogenous norepinephrine level was increased in eyes with …

The concentration of dopamine, and its metabolites 3, 4‐dihydroxyphenylacetic and
homovanillic acids, as well as serotonin and its metabolite 5‐hydroxyindoleacetic acid, were …

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

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 …

Unequal accumulation of drugs in pigmented and nonpigmented iris has been known for
some time. However, at low concentrations of the sympathetic neurotransmitter …

Visual pigments and a neurotransmitter, dopamine, were quantitatively investigated in the
retina of adult bullfrog, Rana catesbeiana. The adult bullfrog (body length 15–16 cm, body …

Summary Hydroxyindole-O-methyltransferase (HIOMT) activity for the synthesis of melatonin
and 5-methoxytryptophol, both 5-methoxyindoles, was measured in the pineal, the …