eumelanin/corylus avellana

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Human iridal stroma melanosomes of varying pheomelanin contents possess a common eumelanic outer surface.

Watumiaji waliosajiliwa tu ndio wanaweza kutafsiri nakala

Ingia / Ingia

Uveal melanosomes originating in the iridal stroma contain both black (eumelanin) and red (pheomelanin) pigment. Recent studies reveal that the eumelanin/pheomelanin ratio varies with iris color, with lower ratios being observed for lighter color (hazel, blue) irides. This is of great interest

The ultraviolet absorption coefficient of melanosomes decreases with increasing pheomelanin content.

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Ingia / Ingia

Uveal melanosomes from the iridal stroma contain both eumelanin and pheomelanin, the ratio of which varies with iris color. Herein, we report the absorption coefficient at lambda = 244 nm for individual human iridal stroma melanosomes from dark brown and blue-green irides. The melanosomes are nearly

Molecular and biochemical mechanisms of human iris color: A comprehensive review

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Ingia / Ingia

Eye color is determined as a polymorphism and polygenic trait. Brown is the most common eye color in the world, accounting for about 79%, blue eye color for about 8-10%, hazel for 5%, and green for 2%. Rare-colored eyes include gray and red/violet. Different factors are involved in determining eye

Iris Colour and the Risk of Developing Uveal Melanoma

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Ingia / Ingia

Uveal melanoma (UM) is a global disease which especially occurs in elderly people. Its incidence varies widely between populations, with the highest incidence among Caucasians, and a South-to-North increase in Europe. As northern Europeans often have blond hair and light eyes, we wondered whether

Characterization of melanin in human iridal and choroidal melanocytes from eyes with various colored irides.

Watumiaji waliosajiliwa tu ndio wanaweza kutafsiri nakala

Ingia / Ingia

Variance in iris color is related to the incidence of several important ocular diseases, including uveal melanoma and age-related macular degeneration. The purposes of this study were to determine the quantity and the types of melanin in cultured human uveal melanocytes in relation to the iris

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Herbal & Natural Medicine

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