The classical pathway of melanogenesis is not essential for melanin synthesis in the adult retinal pigment epithelium

A Biesemeier, F Kreppel, S Kochanek… - Cell and tissue …, 2010 - Springer
Premelanosomes are presumed to be essential for melanogenesis in melanocytes and pre-
natal retinal pigment epithelium (RPE) cells. We analysed melanin synthesis in adenoviral …

Ocular melanoma in a Long Evans rat

WS Manning, PG Greenlee… - Journal of the American …, 2004 - ingentaconnect.com
During a long-term study, a rat exposed to half-amplitude band pass fluorescent blue light
(434 to 475 nm) and receiving a calcium channel blocker developed an ocular mass. By …

Delayed neurogenesis in the albino retina: evidence of a role for melanin in regulating the pace of cell generation

M Ilia, G Jeffery - Developmental brain research, 1996 - Elsevier
Melanin or an associated product in the retinal pigment epithelium (RPE) regulates retinal
maturation, because in albino mammals the central retina is underdeveloped and there is a …

Affinity of ocular acid-insoluble melanin for drugs in vitro.

M Tsuchiya, S Hayasaka… - … ophthalmology & visual …, 1987 - iovs.arvojournals.org
The authors examined spectrophotometrically the ability of drugs to bind with ocular acid-
insoluble melanin. Each drug, at 5 X 10 (-5) M, was incubated at 37 degrees C for 8 hr with 4 …

Quantitative chemical analysis of ocular melanosomes in the TEM

O Eibl, S Schultheiss, P Blitgen-Heinecke… - Micron, 2006 - Elsevier
Melanosomes in retinal tissues of a human, monkey and rat were analyzed by EDX in the
TEM. Samples were prepared by ultramicrotomy at different thicknesses. The material was …

Naphthalene cataracts in rats. Association of eye pigmentation and cataract development

HR Koch, K Doldi, O Hockwin - … of Lens Biochemistry Research: Volume in …, 1976 - Springer
The development of naphthalene cataracts was studied in 5 strains of rattus norvegicus of
different pigmentation. Whereas all animals of the pigmented strains (E3, BDE, DA) …

Intraocular melanoma in the rat

G Magnusson, S Majeed, JM Offer - Laboratory Animals, 1978 - journals.sagepub.com
Intraocular melanoma in the rat Page 1 Laboratory Animals (1978) 12,249-252 Intraocular
melanoma in the rat G. MAGNUSSON, S. MAJEED & JM OFFER Department of Pathology …

An estimate of melanosome concentration in pigment tissues

JAN BOROVANSKÝ, E VEDRALOVÁ… - Pigment cell …, 1991 - Wiley Online Library
Concentration of melanosomes in various tissues has been unknown because of the
impracticability of their direct quantification. Using an indirect approach comprising the …

Choroidal melanocytes—a model for studying the aging process in nonreplicative differentiated cells

F Hu, K Mah - Mechanisms of Ageing and Development, 1979 - Elsevier
Choroidal melanocytes differentiate and cease to divide early in postnatal life. They have
characteristic organelles, the melanosomes, which are formed from tyrosine in a reaction …

Chemical composition of melanosomes, lipofuscin and melanolipofuscin granules of human RPE tissues

A Biesemeier, U Schraermeyer, O Eibl - Experimental eye research, 2011 - Elsevier
Energy-filtered analytical transmission electron microscopy was used to image the
ultrastructure and determine quantitatively the chemical composition of pigment granules of …