Results 221 to 230 of about 29,468 (254)
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Melanogenesis and Skin Carcinoma
Archives of Dermatology, 1960It has long been alleged that the ultraviolet portion of sunlight contributes etiologically to the development of carcinoma of the skin. However, the exact mechanism of action whereby and the degree to which ultraviolet influences carcinogenesis have never been clarified in humans.
M A, EVERETT, R, BELL, J A, HAGANS
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Melanogenesis in human melanomas
Plastic and Reconstructive Surgery, 1975A number of biochemical aspects of melanogenesis were studied in 15 variously melanized human melanomas. The tryosinase activity was correlated with the degree of melanoma varied from 3,667 to 46,183 tryosinase units, in partially melanotic melanoma it varied from 14 to 75 tryrosinase units.
Y M, Chen, W, Chavin
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Pigment Cell Research, 2003
Melanins are the principal surface pigments in vertebrates and, in humans, play a major role in photoprotection. Although the product (melanin) has a mainly protective function in the skin, the process of melanogenesis represents a potential cellular hazard and is confined to special membrane‐limited organelles (melanosomes) in a set of specialized ...
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Melanins are the principal surface pigments in vertebrates and, in humans, play a major role in photoprotection. Although the product (melanin) has a mainly protective function in the skin, the process of melanogenesis represents a potential cellular hazard and is confined to special membrane‐limited organelles (melanosomes) in a set of specialized ...
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Trace metals and melanogenesis
Experientia, 1983Emission spectroscopic analysis of amphibian and mammalian skin ash for the study of trace metals shows that nickel, lead and tin may play some role in the pigmentation-depigmentation process.
D P, Chakraborty +3 more
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Ascorbic acid and melanogenesis
British Journal of Dermatology, 1977The ascorbic acid contents of skin, plasma and urine were estimated in 12 vitiligo cases, one albino and 10 normal subjects. All the estimations were repeated after saturation with ascorbic acid. There was no difference between the two groups with regard to the ascorbic acid contents of their plasma or urine.
A V, Ratnam +2 more
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Experientia, 1968
Es wurden die anatomische und subzellulare Verteilung der Tyrosinaseaktivitat im Integument und die Tyrosincarboxylinkorporation in Melanin beiRana pipiens undRana catesbiana festgestellt und gefunden, dass die Tyrosinaseaktivitat in der Bauchhaut hoher ist als in der Ruckenhaut, wahrend die Seitenhaut dazwischenliegende Werte liefert.
Y M, Chen, W, Chavin
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Es wurden die anatomische und subzellulare Verteilung der Tyrosinaseaktivitat im Integument und die Tyrosincarboxylinkorporation in Melanin beiRana pipiens undRana catesbiana festgestellt und gefunden, dass die Tyrosinaseaktivitat in der Bauchhaut hoher ist als in der Ruckenhaut, wahrend die Seitenhaut dazwischenliegende Werte liefert.
Y M, Chen, W, Chavin
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Quinone Chemistry and Melanogenesis
2004Publisher Summary The divergence of the melanogenic pathway occurs after the initial oxidation step that yields dopaquinone. The current analytical approach to the classification of melanins depends on the assessment of the comparative levels of degradation products that are considered characteristic of indoles and benzothiazine residues.
Edward J, Land +2 more
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Melanin, Melanogenesis, and Vitiligo
ChemInform, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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Downregulation of
AbstractStudies have revealed that taurine upregulated gene 1 (TUG1), an important member of the long non‐coding RNA family, is involved in the regulation of cell growth, tumorigenesis and invasion, insulin secretion and so on. However, its role in melanogenesis has not been explored.
Chuhan Fu +10 more
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Ukrainian Journal of Dermatology, Venerology, Cosmetology, 2021
Human skin and hair colour are due to a pigment, melanin, which is produced at the dermal epidermal level by specialized cells, the melanocytes, in a process named melanogenesis.The melanocytes are derived from their precursors, melanoblasts, with migrate to their definitive locations in the course of the final steps of embryogenesis.
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Human skin and hair colour are due to a pigment, melanin, which is produced at the dermal epidermal level by specialized cells, the melanocytes, in a process named melanogenesis.The melanocytes are derived from their precursors, melanoblasts, with migrate to their definitive locations in the course of the final steps of embryogenesis.
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