منابع مشابه
Familial grouped pigmentation of the retinal pigment epithelium.
Grouped pigmentation of the retinal pigment epithelium was found in a father and his son. They had a normal resting potential on the electro-oculogram, but the son had a lower normal light rise. We believe this is the first description of familial grouped pigmentation.
متن کاملMolecular biology of pigment cells. Molecular controls in mammalian pigmentation.
Genetic regulation in bacteria, fungi, yeast, and higher plants has been extensively studied, two well-known systems being the lactose (1) and arabinose (2) operons in Escherichia coli. The understanding of the mechanisms by which these systems function has depended heavily upon (a) the ability to obtain cells bearing mutations, thus allowing for genetic analyses of the various complementation ...
متن کاملMaya blue: a clay-organic pigment?
Maya Blue, a pigment used by the Mayas in Yucatan, is remarkably stable: the color is not destroyed by hot concentrated mineral acids or by heating to about 250 degrees C. The principal constituent is the colorless mineral attapulgite. It is proposed that the pigment is an adsorption complex of attapulgite and natural indigo; a synthetic equivalent may be prepared from attapulgite and either in...
متن کاملThe retinal pigment epithelium undergoes massive apoptosis during early differentiation and pigmentation of the optic cup
PURPOSE The aim of our work was to study apoptosis during the development of the retinal pigment epithelium (RPE) in mice between embryonic day (E) 10.5 and E12.5 and to examine a possible link between apoptosis and pigmentation. METHODS We collected mouse embryos at E10.5, E11.5, and E12.5 and labeled apoptotic cells in 5-µm paraffin sections, using the terminal deoxynucleotidyl transferase ...
متن کاملPigment Formation in the Liver during Autolysis and Its Relation to the Pigmentation of Hemochromatosis
Without claiming any close analogy between the autolytic changes and pigmentation in pathological processes, it has, we believe, been shown that iron-containing, as well as other kinds of pigments, may be formed during the autolytic degeneration of parenchymatous cells independently of the hemoglobin in the blood stream, and hence may be derived from the proteid constituents of the cell itself.
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Colour Material
سال: 1979
ISSN: 0010-180X
DOI: 10.4011/shikizai1937.52.623