The occurrence of high amounts of dopa has been demonstrated chemically in the piliary
system of pigmented animals (guinea‐pig, rabbit, and dog). Histochemically, a …

The glyoxylic acid technique for fluorescence histochemical characterization of
catecholamine neurons has been used to visualize the catecholaminergic cells and …

Histochemical and chemical evidence has suggested the existence of dopaminergic
neurons at the junction of the retinal inner nuclear and inner plexiform layers. In order that …

The pigmented eyes of non albino rats (PVG) accumulated ephedrine, norephedrine and
amphetamine. After 15 min accumulation of ephedrine and amphetamine was larger than of …

Dopamine fulfills most of the criteria for a functional neurotransmitter in the retina (Ehinger,
l983) and recent evidence also supports a neuromodulatory role for this catecholamine in …

Pigments of the locus coeruleus and substantia nigra isolated from human brain were
compared by means of infrared spectrometry with each other, with other natural melanins …

Häggendal, J. and T. Malmfors. Identification and cellular localization of the catecholamines
in the retina and the choroid of the rabbit. Acta physiol. scand. 1965. 64. 58–66.–By means …

The type of catecholamine receptor involved in the regulation of serotonin N-
acetyltransferase (NAT) activity and melatonin (N-acetyl-5-methoxytryptamine) level in …

To explore the possibility that dopa and 5-S-cysteinyldopa, precursors of melanin, can be
produced in non-melanogenic tissues, this study examined the contents of the free and …

Using high performance liquid chromatography, the level of retinoids was determined in the
bovine pineal gland, retina, retinal pigment epithelium, cortical and subcortical brain tissues …